/* ========== HENDERSON DESIGN SYSTEM ==========
 * Import design tokens first
 * ============================================== */
@import url('styles/tokens.css');
@import url('styles/power-tokens.css');

/* ========== PENNYLANE STYLE - VARIABLES ========== */
/* These extend/override tokens for backward compatibility */
:root {
    /* Map to new token system */
    --mint-50: var(--brand-50);
    --mint-100: var(--brand-100);
    --mint-200: var(--brand-200);
    --mint-300: var(--brand-300);
    --mint-400: var(--brand-400);
    --mint-500: var(--brand-500);
    --mint-600: var(--brand-600);
    --mint-700: var(--brand-700);
    --dark-900: var(--brand-900);
    --dark-800: var(--brand-800);
    --dark-700: var(--brand-700);

    --gray-50: var(--neutral-50);
    --gray-100: var(--neutral-100);
    --gray-200: var(--neutral-200);
    --gray-300: var(--neutral-300);
    --gray-600: var(--neutral-600);
    --gray-700: var(--neutral-700);
    --gray-900: var(--neutral-900);

    /* Light mode specific - mapped to tokens */
    --bg-primary: var(--surface-secondary);
    --bg-secondary: var(--surface-primary);
    --bg-tertiary: var(--surface-tertiary);
    --text-primary: var(--text-primary);
    --text-secondary: var(--text-secondary);
    --text-muted: var(--text-muted);
    --border-color: var(--border-default);
    --card-bg: var(--card-bg);
    --header-bg: rgba(255, 255, 255, 0.98);
    --input-bg: var(--input-bg);
    --shadow-color: rgba(0, 0, 0, 0.1);
}

/* Dark Mode - HENDERSON POWER DESIGN SYSTEM */
[data-theme="dark"] {
    /* Void Background System */
    --bg-primary: var(--void, #030F0A);
    --bg-secondary: var(--void-surface, #0A1F16);
    --bg-tertiary: var(--void-elevated, #0F2A1F);

    /* Text System - High Contrast */
    --text-primary: #F0FDF4;      /* Mint white - primary text */
    --text-secondary: #CBD5E1;    /* Neutral gray - readable secondary */
    --text-muted: #94A3B8;        /* Medium gray - good contrast for muted */

    /* Glass System */
    --border-color: var(--glass-border, rgba(255, 255, 255, 0.05));
    --card-bg: var(--glass-bg, rgba(10, 31, 22, 0.6));
    --header-bg: oklch(12% 0.03 160 / 0.9);
    --input-bg: var(--void-surface, #0A1F16);
    --shadow-color: rgba(0, 0, 0, 0.4);

    /* Photon Accent */
    --accent-color: var(--photon, #00FF94);
    --accent-glow: var(--shadow-photon);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-ui);
    font-size: var(--font-size-base);
    /* Ultra-premium background - derived from uploader button green #166534 */
    /* HSL(145°, 64%, 24%) → ultra-subtle tints at 95-99% lightness */
    /* Delta ≈ 4% - felt more than seen - strategic CFO cockpit */
    background: linear-gradient(
        165deg,
        #fcfdfc 0%,      /* HSL(145, 5%, 99%) - whisper of green */
        #f9fbfa 30%,     /* HSL(145, 7%, 98%) - barely perceptible */
        #f6f9f7 60%,     /* HSL(145, 9%, 97%) - subtle presence */
        #f1f6f3 100%     /* HSL(145, 12%, 95.5%) - calm anchor */
    );
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--text-primary);
    line-height: var(--line-height-relaxed);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: color 0.3s;
}

/* ========== HENDERSON TYPOGRAPHY HIERARCHY ========== */
/* Inter: clarity, rationality, precision - the CFO cockpit */
/* Manrope: warmth, humanity, presence - Henderson the mentor */
/* "Cold room. Warm voice." */

/* Major Section Headers - Manrope for warmth & authority */
h1, .h1 {
    font-family: var(--font-brand);
    font-size: 2.5rem;  /* 40px */
    font-weight: 700;
    line-height: var(--line-height-tight);
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

h2, .h2 {
    font-family: var(--font-brand);
    font-size: 2rem;    /* 32px */
    font-weight: 700;
    line-height: var(--line-height-tight);
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

/* Smaller Headers - Inter for clarity */
h3, .h3 {
    font-family: var(--font-ui);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
}

h4, .h4 {
    font-family: var(--font-ui);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
}

/* Page Title - Extra large Manrope */
.page-title {
    font-family: var(--font-brand);
    font-size: 3rem;    /* 48px */
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* Small labels */
.label-small,
.caption {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    color: var(--text-muted);
}

/* ========== WARM ACCENT UTILITIES ========== */
/* Use sparingly - only for insights, guidance, interpretation moments */
/* "If the user consciously notices the color, it is already too strong" */

.insight-highlight {
    border-bottom: 2px solid var(--warm-accent);
    padding-bottom: 1px;
}

.insight-glow {
    background: var(--warm-accent-subtle);
    border-radius: var(--radius-sm);
    padding: 2px 6px;
}

.insight-text {
    color: var(--warm-accent-text);
    font-weight: var(--font-weight-medium);
}

.guidance-icon {
    color: var(--warm-accent);
    opacity: 0.8;
}

/* ========== LAYOUT ========== */
.container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== HEADER ========== */
.header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 100;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    transition: background-color 0.3s, border-color 0.3s;
}

/* Body spacing for fixed header */
body {
    padding-top: 72px; /* Height of header */
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Brand typography - Manrope for modern authority with warmth */
.logo-text {
    font-family: var(--font-brand);
    font-weight: 800;           /* ExtraBold */
    font-size: 1.625rem;        /* 26px */
    letter-spacing: 0.06em;     /* Slight tracking increase */
    text-transform: uppercase;
    color: var(--text-primary);
}

.logo-image {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.logo-circle {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--mint-400), var(--mint-600));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 22px;
    font-weight: 800;
    box-shadow: 0 4px 12px rgba(20, 184, 166, 0.3);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--mint-600);
}

.btn-profile {
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--mint-400), var(--mint-600));
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-profile:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(20, 184, 166, 0.4);
}

/* Upload button in chat input (dark green, same size as send) */
.btn-upload {
    padding: 16px;
    background: linear-gradient(135deg, #166534, #15803d);
    color: white;
    border: none;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-width: 56px;
    height: 56px;
    flex-shrink: 0;
}

.btn-upload:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(22, 101, 52, 0.3);
    background: linear-gradient(135deg, #15803d, #16a34a);
}

.btn-upload:active {
    transform: translateY(0);
}

.btn-upload .upload-badge {
    position: absolute;
    top: -6px;
    right: -6px;
    background: #dc2626;
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

.btn-upload svg {
    stroke: white;
}

/* ========== MAIN LAYOUT (2 COLONNES) ========== */
.main-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 24px;
    padding: 24px 0;
    align-items: start;
}

/* ========== SIDEBAR (Stats + Actions) ========== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 96px; /* 72px header + 24px gap */
    align-self: start;
}

/* ========== STATS CARDS (COMPACT) ========== */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.stat-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.stat-card:hover {
    border-color: var(--mint-300);
    box-shadow: 0 8px 24px rgba(20, 184, 166, 0.12);
    transform: translateY(-2px);
}

.stat-label {
    font-size: 11px;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 600;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 32px;
    font-weight: 800;
    color: var(--dark-900);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-unit {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-600);
    margin-left: 4px;
}

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

.stat-change.positive {
    background: var(--mint-100);
    color: var(--mint-700);
}

.stat-change.negative {
    background: #fee2e2;
    color: #991b1b;
}

/* ========== QUICK ACTIONS (COMPACT) ========== */
.quick-actions {
    background: white;
    padding: 24px;
    border-radius: 16px;
    border: 1px solid var(--gray-200);
}

.quick-actions h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark-900);
    margin-bottom: 16px;
}

.actions-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.action-btn:hover {
    background: var(--mint-50);
    border-color: var(--mint-300);
    transform: translateX(4px);
}

.action-btn-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.action-btn-content {
    flex: 1;
}

.action-btn-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark-900);
    margin-bottom: 2px;
}

.action-btn-desc {
    font-size: 12px;
    color: var(--gray-600);
}

/* ========== INSIGHTS (COMPACT) ========== */
.insights-compact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.insight-mini {
    background: white;
    padding: 16px;
    border-radius: 12px;
    border-left: 3px solid;
    border-top: 1px solid var(--gray-200);
    border-right: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
    transition: all 0.2s;
    cursor: pointer;
}

.insight-mini:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.insight-mini.economy { border-left-color: var(--mint-500); }
.insight-mini.alert { border-left-color: #f59e0b; }
.insight-mini.opportunity { border-left-color: #6366f1; }

.insight-mini-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--dark-900);
    margin-bottom: 4px;
}

.insight-mini-amount {
    font-size: 18px;
    font-weight: 800;
    color: var(--mint-600);
    margin-bottom: 4px;
}

.insight-mini-desc {
    font-size: 12px;
    color: var(--gray-600);
    line-height: 1.4;
}

/* ========== CHAT PRINCIPAL (DOMINANT) ========== */
.chat-main {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 120px); /* Viewport minus header and padding */
    min-height: 400px;
    position: sticky;
    top: 96px; /* Below fixed header + padding */
}

.chat-container {
    background: white;
    border-radius: 20px;
    border: 1px solid var(--gray-200);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0; /* Critical for flex children to shrink */
    position: relative;
}

.chat-header {
    padding: 20px 32px;
    background: linear-gradient(135deg, var(--mint-50), var(--card-bg));
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    transition: background 0.3s, border-color 0.3s;
}

.chat-header h1 {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark-900);
    margin-bottom: 4px;
}

.chat-subtitle {
    font-size: 14px;
    color: var(--gray-600);
}

.chat-messages {
    flex: 1;
    padding: 32px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    scroll-behavior: smooth;
}

/* Custom Scrollbar */
.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: var(--gray-100);
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--mint-300);
    border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--mint-400);
}

.message {
    display: flex;
    gap: 16px;
    max-width: 85%;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
    overflow: hidden;
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.message.henderson .message-avatar {
    background: linear-gradient(135deg, var(--mint-400), var(--mint-600));
    color: white;
}

.message.user .message-avatar {
    background: var(--dark-900);
    color: white;
}

.message-bubble {
    padding: 18px 22px;
    border-radius: 18px;
    font-size: 15px;
    line-height: 1.7;
}

.message.henderson .message-bubble {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.message.user .message-bubble {
    background: var(--dark-900);
    color: white;
}

/* Typing cursor animation */
.typing-cursor {
    display: inline;
    animation: blink 0.8s infinite;
    color: var(--mint-500);
    font-weight: 300;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.typing-text strong {
    font-weight: 600;
    color: var(--dark-900);
}

.typing-text em {
    font-style: italic;
}

/* Quick suggestions */
.suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.suggestion-chip {
    padding: 8px 16px;
    background: var(--card-bg);
    border: 1px solid var(--mint-300);
    border-radius: 20px;
    font-size: 13px;
    color: var(--mint-500);
    cursor: pointer;
    transition: all 0.2s;
}

.suggestion-chip:hover {
    background: var(--mint-500);
    color: white;
    transform: translateY(-2px);
}

/* Brand Name in headers */
.brand-name {
    font-family: var(--font-brand);
    font-weight: 800;
    letter-spacing: 0.04em;
}

/* Rail Buttons - Always visible action buttons */
.rail-buttons {
    display: flex;
    gap: 12px;
    padding: 16px 32px;
    background: var(--surface-secondary);
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    justify-content: center;
    flex-shrink: 0; /* Never shrink - always visible */
}

.rail-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.rail-btn:hover {
    background: var(--cta-bg);
    color: white;
    border-color: var(--cta-bg);
    transform: translateY(-1px);
}

.rail-icon {
    font-size: 16px;
}

.rail-label {
    white-space: nowrap;
}

/* Dark mode rail buttons */
[data-theme="dark"] .rail-buttons {
    background: var(--void-surface, #0A1F16);
}

[data-theme="dark"] .rail-btn {
    background: var(--glass-bg, rgba(10, 31, 22, 0.6));
    border-color: var(--glass-border, rgba(255, 255, 255, 0.05));
    color: #E2E8F0;  /* Explicit high-contrast text */
}

[data-theme="dark"] .rail-btn:hover {
    background: var(--cta-bg);
    border-color: var(--cta-bg);
}

/* Jump to Latest Button - appears when user scrolls up during streaming */
.jump-to-latest {
    position: absolute;
    bottom: 180px;
    left: 50%;
    transform: translateX(-50%);
    display: none;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--cta-bg);
    color: white;
    border: none;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    z-index: 10;
    transition: all 0.2s;
}

.jump-to-latest:hover {
    background: var(--cta-hover);
    transform: translateX(-50%) translateY(-2px);
    box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .jump-to-latest {
    background: var(--photon, #00FF94);
    color: var(--void, #030F0A);
}

.chat-input-container {
    padding: 20px 32px;
    border-top: 1px solid var(--border-color);
    background: var(--card-bg);
    flex-shrink: 0;
    transition: background 0.3s, border-color 0.3s;
}

.chat-input-wrapper {
    display: flex;
    gap: 12px;
    align-items: center;
}

.chat-input {
    flex: 1;
    padding: 16px 24px;
    border: 2px solid var(--border-color);
    border-radius: 14px;
    font-size: 16px;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: all 0.3s;
    background: var(--input-bg);
    color: var(--text-primary);
}

.chat-input:focus {
    border-color: var(--mint-400);
    box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.1);
}

.btn-send {
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--mint-500), var(--mint-600));
    color: white;
    border: none;
    border-radius: 14px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-send:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(20, 184, 166, 0.3);
}

.btn-send:active {
    transform: translateY(0);
}

/* Stop button */
.btn-stop {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 24px;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    border: none;
    border-radius: 14px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-stop:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(239, 68, 68, 0.3);
}

.btn-stop:active {
    transform: translateY(0);
}

.btn-stop svg {
    flex-shrink: 0;
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 16px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--mint-400);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1200px) {
    .main-grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
        grid-row: 2;
    }

    .chat-main {
        height: calc(100vh - 140px); /* Account for header + KPIs */
        position: relative;
        top: 0;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .message {
        max-width: 90%;
    }

    .nav-menu {
        gap: 16px;
    }

    .nav-link {
        display: none;
    }
}

/* Bouton déconnexion */
.btn-logout {
    padding: 10px 20px;
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    margin-left: 8px;
}

.btn-logout:hover {
    background: linear-gradient(135deg, #b91c1c, #991b1b);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

/* Logout icon button (compact) */
.btn-logout-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    background: rgba(220, 38, 38, 0.1);
    color: #dc2626;
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    margin-left: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-logout-icon:hover {
    background: #dc2626;
    color: white;
    border-color: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.btn-logout-icon svg {
    stroke: currentColor;
}

[data-theme="dark"] .btn-logout-icon {
    background: rgba(220, 38, 38, 0.15);
    border-color: rgba(220, 38, 38, 0.3);
}

[data-theme="dark"] .btn-logout-icon:hover {
    background: #dc2626;
    color: white;
}

/* ========== LANGUAGE SELECTOR (Header) ========== */
.header-lang-selector {
    position: relative;
    margin-left: 8px;
}

.header-lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.header-lang-btn:hover {
    background: var(--hover-overlay);
    border-color: var(--cta-bg);
    color: var(--text-primary);
}

.header-lang-btn .globe-icon {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

.header-lang-btn .lang-code {
    font-weight: 600;
    text-transform: uppercase;
}

.header-lang-btn .chevron {
    width: 12px;
    height: 12px;
    opacity: 0.5;
    transition: transform 0.2s;
}

.header-lang-selector.open .chevron {
    transform: rotate(180deg);
}

.header-lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 170px;
    /* Solid opaque background - Safari/Chrome compatible */
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
    overflow: hidden;
    /* Safari fix: explicit flex column layout */
    display: flex;
    flex-direction: column;
}

.header-lang-selector.open .header-lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.header-lang-option {
    /* Safari fix: explicit block display with flex inside */
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 16px;
    background: #ffffff;
    border: none;
    border-bottom: 1px solid #f1f5f9;
    color: #1e293b;
    font-size: 14px;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s;
    /* Safari fix: prevent shrinking */
    flex-shrink: 0;
    box-sizing: border-box;
}

.header-lang-option:last-child {
    border-bottom: none;
}

.header-lang-option:hover {
    background: #f8fafc;
}

.header-lang-option.active {
    background: #ecfdf5;
    color: #059669;
    font-weight: 600;
}

.header-lang-option .flag {
    font-size: 20px;
    line-height: 1;
}

[data-theme="dark"] .header-lang-btn {
    border-color: var(--glass-border);
    color: var(--text-secondary);
}

[data-theme="dark"] .header-lang-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--photon, #00FF94);
}

[data-theme="dark"] .header-lang-dropdown {
    background: #0A1F16;
    border-color: #1a3d2e;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .header-lang-option {
    background: #0A1F16;
    color: #f0fdf4;
    border-bottom-color: #1a3d2e;
}

[data-theme="dark"] .header-lang-option:hover {
    background: #0d2a1f;
}

[data-theme="dark"] .header-lang-option.active {
    background: #134e3a;
    color: #00FF94;
}

/* Legacy language selector (settings page) */
.language-selector {
    display: flex;
    gap: 4px;
    margin-left: 16px;
    padding: 4px;
    background: var(--gray-100);
    border-radius: 8px;
}

.lang-btn {
    padding: 6px 12px;
    border: none;
    background: transparent;
    color: var(--gray-600);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
}

.lang-btn:hover {
    color: var(--dark-900);
    background: white;
}

.lang-btn.active {
    background: white;
    color: var(--mint-600);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Language selector in auth pages */
.auth-lang-selector {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 4px;
    padding: 4px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.auth-lang-selector .lang-btn {
    padding: 8px 14px;
}

/* ========== DOCUMENTS MODAL ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: white;
    border-radius: 20px;
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 28px;
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
}

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--gray-100);
    border-radius: 50%;
    font-size: 24px;
    color: var(--gray-600);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-900);
}

/* Documents Toolbar */
.documents-toolbar {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px 28px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    flex-wrap: wrap;
}

.documents-select-all {
    display: flex;
    align-items: center;
    gap: 8px;
}

.documents-select-all input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--mint-500);
    cursor: pointer;
}

.documents-select-all label {
    font-size: 14px;
    color: var(--gray-700);
    cursor: pointer;
}

.documents-sort {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.documents-sort label {
    font-size: 13px;
    color: var(--gray-600);
}

.documents-sort select {
    padding: 8px 12px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    background: white;
    cursor: pointer;
}

.sort-direction {
    width: 32px;
    height: 32px;
    border: 1px solid var(--gray-200);
    background: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s;
}

.sort-direction:hover {
    background: var(--gray-100);
}

.sort-direction.desc {
    transform: rotate(180deg);
}

/* Bulk Actions */
.documents-bulk-actions {
    display: flex;
    gap: 8px;
}

.btn-bulk-delete,
.btn-bulk-analyze {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-bulk-delete {
    background: #fee2e2;
    color: #dc2626;
}

.btn-bulk-delete:hover {
    background: #fecaca;
}

.btn-bulk-analyze {
    background: var(--mint-100);
    color: var(--mint-700);
}

.btn-bulk-analyze:hover {
    background: var(--mint-200);
}

/* Documents List */
.documents-list {
    flex: 1;
    overflow-y: auto;
    padding: 16px 28px;
    min-height: 300px;
}

.documents-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-hint {
    font-size: 13px;
    color: var(--gray-400);
    margin-top: 8px;
}

/* Document Item */
.document-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 16px;
    background: var(--gray-50);
    border-radius: 12px;
    margin-bottom: 10px;
    transition: all 0.2s;
}

.document-item:hover {
    background: var(--gray-100);
}

.document-item.selected {
    background: var(--mint-50);
    border: 1px solid var(--mint-200);
}

.document-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--mint-500);
    cursor: pointer;
    flex-shrink: 0;
}

.document-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.document-icon.pdf {
    background: #fef2f2;
    color: #ef4444;
}

.document-icon.image {
    background: #eff6ff;
    color: #3b82f6;
}

.document-icon.excel {
    background: #f0fdf4;
    color: #22c55e;
}

.document-icon.csv {
    background: #fefce8;
    color: #eab308;
}

.document-info {
    flex: 1;
    min-width: 0;
}

.document-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-900);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.document-meta {
    display: flex;
    gap: 12px;
    margin-top: 4px;
    font-size: 12px;
    color: var(--gray-500);
}

.document-actions {
    display: flex;
    gap: 8px;
}

.btn-doc-action {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-doc-action:hover {
    background: var(--gray-200);
}

.btn-doc-action.delete:hover {
    background: #fee2e2;
    color: #dc2626;
}

/* Modal Footer */
.modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 28px;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
    border-radius: 0 0 20px 20px;
}

.modal-footer-actions {
    display: flex;
    gap: 12px;
}

.modal-footer .btn-secondary {
    padding: 12px 20px;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.2s;
}

.modal-footer .btn-secondary:hover {
    background: var(--gray-100);
}

.modal-footer .btn-primary {
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--mint-500), var(--mint-600));
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: white;
    cursor: pointer;
    transition: all 0.2s;
}

.modal-footer .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.modal-footer .btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ========== MAIN LAYOUT (Simplified) ========== */
.main-layout {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 20px 0;
}

/* ========== MINI FINANCIAL STRIP ========== */
.mini-financial-strip {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 0;
}

.mini-metric {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--gray-200);
    transition: all 0.2s;
}

.mini-metric:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.mini-metric.sales {
    border-left: 3px solid #10b981;
}

.mini-metric.expenses {
    border-left: 3px solid #f59e0b;
}

.mini-metric.treasury {
    border-left: 3px solid #3b82f6;
}

.mini-icon {
    font-size: 20px;
    opacity: 0.9;
}

.mini-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mini-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
    font-family: 'Inter', sans-serif;
}

.mini-change {
    font-size: 12px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
}

.mini-change.up {
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    color: #15803d;
}

.mini-change.down {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #dc2626;
}

/* Make chat take full width */
.chat-main {
    width: 100%;
    max-width: 100%;
}

@media (max-width: 768px) {
    .mini-financial-strip {
        flex-wrap: wrap;
        gap: 8px;
    }

    .mini-metric {
        padding: 10px 14px;
    }

    .mini-value {
        font-size: 16px;
    }
}

/* ========== QUICK WIDGETS ========== */
.quick-widgets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.quick-widget {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: white;
    border-radius: 14px;
    border: 1px solid var(--gray-200);
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

.quick-widget:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    border-color: var(--mint-300);
}

.widget-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background: var(--gray-100);
}

.notification-widget .widget-icon { background: #fee2e2; }
.forecast-widget .widget-icon { background: #f3e8ff; }
.bank-widget .widget-icon { background: #dcfce7; }
.integration-widget .widget-icon { background: #dbeafe; }

.widget-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.widget-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-900);
}

.widget-badge {
    font-size: 11px;
    font-weight: 600;
    color: #dc2626;
}

.widget-value {
    font-size: 14px;
    font-weight: 700;
    color: #15803d;
}

.widget-status {
    font-size: 11px;
    color: var(--gray-500);
}

.widget-arrow {
    font-size: 14px;
    color: var(--gray-400);
    transition: transform 0.2s;
}

.quick-widget:hover .widget-arrow {
    transform: translateX(4px);
    color: var(--mint-600);
}

@media (max-width: 1200px) {
    .quick-widgets {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .quick-widgets {
        grid-template-columns: 1fr;
    }
}

/* ========== DARK MODE TOGGLE ========== */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    margin-left: 8px;
}

.theme-toggle:hover {
    background: var(--mint-50);
    border-color: var(--mint-300);
}

.theme-toggle-icon {
    font-size: 18px;
    transition: transform 0.3s;
}

[data-theme="dark"] .theme-toggle-icon.sun {
    display: inline;
}

[data-theme="dark"] .theme-toggle-icon.moon {
    display: none;
}

.theme-toggle-icon.sun {
    display: none;
}

.theme-toggle-icon.moon {
    display: inline;
}

/* Dark mode specific overrides */
[data-theme="dark"] .chat-container {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .quick-actions {
    background: var(--card-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .quick-widget {
    background: var(--card-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .mini-financial-strip {
    background: var(--card-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .modal-content {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .modal-header {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

[data-theme="dark"] .document-item {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

[data-theme="dark"] .typing-text strong {
    color: var(--mint-400);
}

[data-theme="dark"] .message.user .message-bubble {
    background: var(--mint-700);
}

/* Dark mode - comprehensive text fixes */
[data-theme="dark"] .stat-value,
[data-theme="dark"] .stat-label,
[data-theme="dark"] .stat-change,
[data-theme="dark"] .chat-header h1,
[data-theme="dark"] .chat-subtitle,
[data-theme="dark"] .section-title,
[data-theme="dark"] .quick-action-title,
[data-theme="dark"] .quick-action-desc,
[data-theme="dark"] .widget-title,
[data-theme="dark"] .widget-value,
[data-theme="dark"] .widget-status,
[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3,
[data-theme="dark"] h4, [data-theme="dark"] h5, [data-theme="dark"] h6,
[data-theme="dark"] p,
[data-theme="dark"] span,
[data-theme="dark"] label,
[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select,
[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    color: var(--text-primary);
}

[data-theme="dark"] .stat-value {
    color: var(--mint-400);
}

[data-theme="dark"] .nav-link {
    color: var(--text-secondary);
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
    color: var(--mint-400);
}

[data-theme="dark"] .logo span {
    color: var(--text-primary);
}

[data-theme="dark"] .message.henderson .message-bubble {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .message-bubble strong {
    color: var(--mint-300);
}

[data-theme="dark"] .chat-header {
    background: linear-gradient(135deg, var(--bg-tertiary), var(--card-bg));
}

[data-theme="dark"] .chat-input {
    background: var(--input-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
}

[data-theme="dark"] .chat-input::placeholder {
    color: var(--text-muted);
}

[data-theme="dark"] .suggestion-chip {
    background: var(--bg-tertiary);
    color: var(--mint-400);
    border-color: var(--mint-600);
}

[data-theme="dark"] .btn-send {
    background: linear-gradient(135deg, var(--mint-500), var(--mint-600));
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select {
    background: var(--input-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .settings-section,
[data-theme="dark"] .settings-nav {
    background: var(--card-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .settings-nav-item {
    color: var(--text-secondary);
}

[data-theme="dark"] .settings-nav-item:hover,
[data-theme="dark"] .settings-nav-item.active {
    color: var(--mint-400);
    background: var(--bg-tertiary);
}

[data-theme="dark"] .section-header {
    border-color: var(--border-color);
}

[data-theme="dark"] .section-footer {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

[data-theme="dark"] .toggle-row {
    border-color: var(--border-color);
}

[data-theme="dark"] .toggle-label {
    color: var(--text-primary);
}

[data-theme="dark"] .toggle-desc {
    color: var(--text-muted);
}

[data-theme="dark"] .btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

[data-theme="dark"] .avatar-preview {
    background: var(--bg-tertiary);
    color: var(--mint-400);
}

[data-theme="dark"] .company-logo {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

[data-theme="dark"] .danger-zone {
    border-color: #7f1d1d;
}

[data-theme="dark"] .danger-zone .section-header {
    background: #450a0a;
}

[data-theme="dark"] .document-name,
[data-theme="dark"] .document-meta {
    color: var(--text-primary);
}

[data-theme="dark"] .documents-empty p {
    color: var(--text-muted);
}

/* ========== CONVERSATION HISTORY SIDEBAR ========== */
.history-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 300px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.history-sidebar.open {
    transform: translateX(0);
}

.history-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.history-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.history-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    line-height: 1;
}

.history-close:hover {
    color: var(--text-primary);
}

.history-search {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.history-search input {
    width: 100%;
    padding: 10px 14px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
}

.history-search input::placeholder {
    color: var(--text-muted);
}

.history-search input:focus {
    outline: none;
    border-color: var(--mint-500);
}

.history-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.history-item {
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border-radius: 10px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.history-item:hover {
    background: var(--mint-50);
    border-color: var(--mint-300);
}

.history-item.active {
    background: var(--mint-100);
    border-color: var(--mint-500);
}

.history-item-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-item-preview {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-item-date {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
}

.history-new-chat {
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.btn-new-chat {
    width: 100%;
    padding: 12px;
    background: var(--mint-500);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}

.btn-new-chat:hover {
    background: var(--mint-600);
}

.history-toggle {
    position: fixed;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 150;
    transition: all 0.2s;
    box-shadow: 0 2px 8px var(--shadow-color);
}

.history-toggle:hover {
    background: var(--mint-50);
    border-color: var(--mint-300);
}

.history-sidebar.open ~ .history-toggle {
    left: 316px;
}

.history-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 190;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.history-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* ========== COMPREHENSIVE MOBILE RESPONSIVE ========== */

/* Extra small devices (phones, 480px and down) */
@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }

    .header {
        padding: 12px 0;
    }

    .logo {
        font-size: 20px;
        gap: 8px;
    }

    .logo-image {
        width: 36px;
        height: 36px;
    }

    .nav-menu {
        gap: 8px;
    }

    .nav-link {
        display: none;
    }

    .btn-logout,
    .btn-profile {
        padding: 8px 12px;
        font-size: 12px;
    }

    .theme-toggle {
        padding: 6px 8px;
    }

    /* Main grid - single column on mobile */
    .main-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 16px 0;
    }

    .sidebar {
        order: 2;
        position: static;
    }

    .chat-main {
        height: calc(100vh - 160px); /* Mobile: header + KPIs + padding */
        min-height: 400px;
        border-radius: 12px;
    }

    /* Chat */
    .chat-header {
        padding: 16px;
    }

    .chat-header h1 {
        font-size: 18px;
    }

    .chat-subtitle {
        font-size: 12px;
    }

    .chat-messages {
        padding: 16px;
        gap: 16px;
    }

    .message {
        max-width: 95%;
        gap: 10px;
    }

    .message-avatar {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .message-bubble {
        padding: 14px 16px;
        font-size: 14px;
        border-radius: 14px;
    }

    .chat-input-container {
        padding: 12px 16px;
    }

    .chat-input-wrapper {
        gap: 8px;
    }

    .chat-input {
        padding: 12px 16px;
        font-size: 14px;
        border-radius: 10px;
    }

    .btn-send, .btn-stop {
        padding: 12px 16px;
        font-size: 14px;
        border-radius: 10px;
    }

    .btn-upload {
        width: 44px;
        height: 44px;
    }

    /* Suggestions */
    .suggestions {
        flex-direction: column;
    }

    .suggestion-chip {
        width: 100%;
        text-align: center;
    }

    /* Stats */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 16px;
    }

    .stat-value {
        font-size: 24px;
    }

    /* Quick actions */
    .quick-actions {
        padding: 16px;
    }

    .quick-actions-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    /* History sidebar */
    .history-sidebar {
        width: 100%;
    }

    .history-toggle {
        left: 8px;
        width: 36px;
        height: 36px;
        font-size: 16px;
    }

    .history-sidebar.open ~ .history-toggle {
        left: calc(100% - 52px);
    }

    /* Settings */
    .settings-layout {
        grid-template-columns: 1fr;
        padding: 16px;
        gap: 16px;
    }

    .settings-nav {
        flex-direction: row;
        overflow-x: auto;
        gap: 8px;
        padding: 12px;
    }

    .settings-nav-title {
        display: none;
    }

    .settings-nav-item {
        white-space: nowrap;
        padding: 10px 12px;
        font-size: 12px;
    }

    .section-body {
        padding: 16px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-input, .form-select {
        font-size: 14px;
        padding: 10px 14px;
    }

    .avatar-upload {
        flex-direction: column;
        align-items: center;
    }

    /* Modals */
    .modal-content {
        width: 95%;
        max-width: none;
        margin: 16px;
        max-height: 85vh;
    }

    .modal-header {
        padding: 16px;
    }

    .modal-body {
        padding: 16px;
    }

    .modal-footer {
        padding: 12px 16px;
        flex-direction: column;
        gap: 10px;
    }

    .modal-footer-actions {
        width: 100%;
        display: flex;
        gap: 8px;
    }

    .modal-footer-actions button {
        flex: 1;
    }

    /* Documents */
    .document-item {
        padding: 12px;
    }

    .document-name {
        font-size: 13px;
    }

    .documents-toolbar {
        flex-direction: column;
        gap: 10px;
    }

    /* Mini strip */
    .mini-financial-strip {
        flex-wrap: wrap;
        gap: 8px;
        padding: 12px;
    }

    .mini-metric {
        flex: 1 1 calc(50% - 4px);
        min-width: 120px;
    }

    /* Quick widgets */
    .quick-widgets {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .quick-widget {
        padding: 12px;
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    .widget-icon {
        font-size: 20px;
    }

    .widget-title {
        font-size: 12px;
    }
}

/* Small devices (phones, 481px to 768px) */
@media (min-width: 481px) and (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .main-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .sidebar {
        order: 2;
        position: static;
    }

    .chat-main {
        height: calc(100vh - 150px); /* Small devices */
        min-height: 400px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .settings-layout {
        grid-template-columns: 1fr;
    }

    .quick-widgets {
        grid-template-columns: repeat(2, 1fr);
    }

    .history-sidebar {
        width: 280px;
    }
}

/* Medium devices (tablets, 769px to 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .main-grid {
        grid-template-columns: 320px 1fr;
        gap: 20px;
    }

    .settings-layout {
        grid-template-columns: 220px 1fr;
    }

    .quick-widgets {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn-send, .btn-stop, .btn-upload,
    .suggestion-chip, .quick-action,
    .history-item, .document-item {
        min-height: 44px;
    }

    .nav-link, .settings-nav-item {
        min-height: 40px;
        display: flex;
        align-items: center;
    }

    /* Larger touch targets */
    .toggle-switch {
        width: 52px;
        height: 32px;
    }

    .toggle-switch::after {
        width: 26px;
        height: 26px;
    }

    .toggle-switch.active::after {
        transform: translateX(20px);
    }

    /* Better scrolling */
    .chat-messages,
    .history-list,
    .documents-list {
        -webkit-overflow-scrolling: touch;
    }
}

/* Safe area for notched phones */
@supports (padding: max(0px)) {
    .header {
        padding-top: max(16px, env(safe-area-inset-top));
        padding-left: max(16px, env(safe-area-inset-left));
        padding-right: max(16px, env(safe-area-inset-right));
    }

    .chat-input-container {
        padding-bottom: max(20px, env(safe-area-inset-bottom));
    }

    .history-sidebar {
        padding-top: max(20px, env(safe-area-inset-top));
        padding-bottom: max(20px, env(safe-area-inset-bottom));
    }
}

/* Landscape mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .chat-main {
        min-height: 80vh;
    }

    .chat-messages {
        padding: 12px;
    }

    .message-bubble {
        padding: 10px 14px;
    }

    .suggestions {
        flex-direction: row;
        flex-wrap: wrap;
    }
}

/* Print styles */
@media print {
    .header, .sidebar, .history-sidebar, .history-toggle,
    .chat-input-container, .modal {
        display: none !important;
    }

    .chat-main {
        height: auto;
        border: none;
        box-shadow: none;
    }

    .main-grid {
        display: block;
    }
}

/* ========== HENDERSON POWER DESIGN SYSTEM - DARK MODE OVERRIDES ========== */
/* Cinematic UI · Neo-Naturalism · Technical Void */

[data-theme="dark"] body {
    background: var(--void, #030F0A);
    background-image: 
        radial-gradient(ellipse at 20% 20%, oklch(89% 0.24 150 / 0.06) 0%, transparent 40%),
        radial-gradient(ellipse at 80% 80%, oklch(45% 0.12 180 / 0.1) 0%, transparent 40%);
    background-attachment: fixed;
}

/* Glass Header */
[data-theme="dark"] .header {
    background: oklch(12% 0.03 160 / 0.85);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    -webkit--webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Glassmorphism Cards */
[data-theme="dark"] .stat-card,
[data-theme="dark"] .kpi-card,
[data-theme="dark"] .chat-main,
[data-theme="dark"] .card,
[data-theme="dark"] .modal-content {
    background: oklch(18% 0.04 160 / 0.6);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    -webkit--webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] .stat-card:hover,
[data-theme="dark"] .kpi-card:hover,
[data-theme="dark"] .card:hover {
    border-color: oklch(89% 0.24 150 / 0.3);
    box-shadow: 0 0 20px rgba(0, 255, 148, 0.15);
}

/* High-Voltage Primary Buttons */
[data-theme="dark"] .btn-primary,
[data-theme="dark"] .btn-analyze-queue,
[data-theme="dark"] button[type="submit"] {
    background: oklch(89% 0.24 150);
    color: #030F0A;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    box-shadow: 0 0 20px rgba(0, 255, 148, 0.3);
    border: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] .btn-primary:hover,
[data-theme="dark"] .btn-analyze-queue:hover,
[data-theme="dark"] button[type="submit"]:hover {
    box-shadow: 0 0 30px rgba(0, 255, 148, 0.5);
    transform: translateY(-2px);
}

/* Secondary Buttons */
[data-theme="dark"] .btn-secondary {
    background: transparent;
    border: 2px solid oklch(45% 0.12 180);
    color: var(--text-main, #F0FDF4);
}

[data-theme="dark"] .btn-secondary:hover {
    border-color: oklch(89% 0.24 150);
    box-shadow: 0 0 15px rgba(0, 255, 148, 0.2);
}

/* Power Inputs */
[data-theme="dark"] input,
[data-theme="dark"] textarea,
[data-theme="dark"] select {
    background: oklch(18% 0.04 160);
    border: 2px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main, #F0FDF4);
    transition: all 0.3s ease;
}

[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus,
[data-theme="dark"] select:focus {
    border-color: oklch(89% 0.24 150);
    box-shadow: 0 0 0 4px oklch(89% 0.24 150 / 0.1), 0 0 20px rgba(0, 255, 148, 0.2);
    outline: none;
}

/* Photon Stats - Positive Numbers */
[data-theme="dark"] .stat-value,
[data-theme="dark"] .kpi-value {
    font-family: 'JetBrains Mono', 'SF Mono', monospace;
    font-weight: 700;
}

[data-theme="dark"] .stat-positive,
[data-theme="dark"] .trend-up,
[data-theme="dark"] .positive {
    color: oklch(89% 0.24 150);
    text-shadow: 0 0 20px rgba(0, 255, 148, 0.4);
}

/* Plasma Red - Negative Numbers */
[data-theme="dark"] .stat-negative,
[data-theme="dark"] .trend-down,
[data-theme="dark"] .negative {
    color: oklch(65% 0.25 25);
    text-shadow: 0 0 20px rgba(255, 59, 92, 0.4);
}

/* Navigation Links */
[data-theme="dark"] .nav-link {
    color: oklch(84% 0.12 160);
    transition: all 0.2s ease;
}

[data-theme="dark"] .nav-link:hover {
    color: var(--text-main, #F0FDF4);
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .nav-link.active {
    color: oklch(89% 0.24 150);
    background: oklch(89% 0.24 150 / 0.08);
}

/* Chat Interface */
[data-theme="dark"] .chat-messages {
    background: transparent;
}

[data-theme="dark"] .message-bubble.user {
    background: linear-gradient(135deg, oklch(45% 0.12 180), oklch(55% 0.14 180));
    color: white;
}

[data-theme="dark"] .message-bubble.assistant {
    background: oklch(18% 0.04 160 / 0.8);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Chat Input */
[data-theme="dark"] .chat-input-container {
    background: oklch(12% 0.03 160 / 0.9);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .chat-input-wrapper {
    background: oklch(18% 0.04 160);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .chat-input-wrapper:focus-within {
    border-color: oklch(89% 0.24 150);
    box-shadow: 0 0 20px rgba(0, 255, 148, 0.15);
}

/* Suggestion Chips */
[data-theme="dark"] .suggestion-chip {
    background: oklch(18% 0.04 160 / 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: oklch(84% 0.12 160);
    transition: all 0.2s ease;
}

[data-theme="dark"] .suggestion-chip:hover {
    border-color: oklch(89% 0.24 150 / 0.5);
    background: oklch(89% 0.24 150 / 0.1);
    color: oklch(89% 0.24 150);
    box-shadow: 0 0 15px rgba(0, 255, 148, 0.2);
}

/* Power Badges */
[data-theme="dark"] .badge-success,
[data-theme="dark"] .status-success {
    background: oklch(89% 0.24 150 / 0.15);
    color: oklch(89% 0.24 150);
    border: 1px solid oklch(89% 0.24 150 / 0.3);
}

[data-theme="dark"] .badge-warning,
[data-theme="dark"] .status-warning {
    background: oklch(85% 0.18 85 / 0.15);
    color: oklch(85% 0.18 85);
    border: 1px solid oklch(85% 0.18 85 / 0.3);
}

[data-theme="dark"] .badge-danger,
[data-theme="dark"] .status-danger {
    background: oklch(65% 0.25 25 / 0.15);
    color: oklch(65% 0.25 25);
    border: 1px solid oklch(65% 0.25 25 / 0.3);
}

/* Power Tables */
[data-theme="dark"] table th {
    background: oklch(18% 0.04 160);
    color: oklch(65% 0.08 160);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 11px;
}

[data-theme="dark"] table tr:hover td {
    background: oklch(89% 0.24 150 / 0.05);
}

/* Sidebar */
[data-theme="dark"] .history-sidebar,
[data-theme="dark"] .sidebar {
    background: oklch(12% 0.03 160 / 0.95);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

/* Scrollbar - Power Style */
[data-theme="dark"] ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: oklch(12% 0.03 160);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: oklch(45% 0.12 180);
    border-radius: 4px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: oklch(89% 0.24 150);
}

/* Progress Bars */
[data-theme="dark"] .progress-bar,
[data-theme="dark"] progress::-webkit-progress-value {
    background: linear-gradient(90deg, oklch(45% 0.12 180), oklch(89% 0.24 150));
    box-shadow: 0 0 10px rgba(0, 255, 148, 0.4);
}

/* Logo Glow */
[data-theme="dark"] .logo-image {
    filter: drop-shadow(0 0 10px rgba(0, 255, 148, 0.3));
}

/* Modals */
[data-theme="dark"] .modal-overlay {
    background: oklch(12% 0.03 160 / 0.8);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

[data-theme="dark"] .modal-content {
    background: oklch(18% 0.04 160 / 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
}

/* Upload Zone */
[data-theme="dark"] .upload-zone,
[data-theme="dark"] .drop-zone {
    background: oklch(18% 0.04 160 / 0.5);
    border: 2px dashed oklch(45% 0.12 180);
    transition: all 0.3s ease;
}

[data-theme="dark"] .upload-zone:hover,
[data-theme="dark"] .drop-zone:hover,
[data-theme="dark"] .upload-zone.dragover,
[data-theme="dark"] .drop-zone.dragover {
    border-color: oklch(89% 0.24 150);
    background: oklch(89% 0.24 150 / 0.05);
    box-shadow: 0 0 20px rgba(0, 255, 148, 0.1);
}

/* Quick Stats Cards */
[data-theme="dark"] .quick-stat {
    background: oklch(18% 0.04 160 / 0.6);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Alerts */
[data-theme="dark"] .alert-success {
    background: oklch(89% 0.24 150 / 0.1);
    border: 1px solid oklch(89% 0.24 150 / 0.3);
    color: oklch(89% 0.24 150);
}

[data-theme="dark"] .alert-error,
[data-theme="dark"] .alert-danger {
    background: oklch(65% 0.25 25 / 0.1);
    border: 1px solid oklch(65% 0.25 25 / 0.3);
    color: oklch(65% 0.25 25);
}

[data-theme="dark"] .alert-warning {
    background: oklch(85% 0.18 85 / 0.1);
    border: 1px solid oklch(85% 0.18 85 / 0.3);
    color: oklch(85% 0.18 85);
}

/* Photon Pulse Animation */
@keyframes photon-pulse {
    0%, 100% { box-shadow: 0 0 20px rgba(0, 255, 148, 0.3); }
    50% { box-shadow: 0 0 35px rgba(0, 255, 148, 0.5); }
}

[data-theme="dark"] .pulse-glow {
    animation: photon-pulse 2s ease-in-out infinite;
}
/* Deployment trigger - Thu Jan  1 23:41:40 UTC 2026 */