/* -------------------------------------------------------------
 * IDIORA & ZOTELA LANDING PAGE STYLESHEET (style.css)
 * Premium modern design utilizing Ivory Paper, Slate, Navy and Gold.
 * Supporting smooth light/dark theme transitions and micro-animations.
 * ------------------------------------------------------------- */

/* ==========================================
   CSS Custom Variables (Design System)
   ========================================== */
:root {
    /* Fonts */
    --font-heading: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'Fira Code', Consolas, Monaco, monospace;

    /* Theme colors: Light Mode (Paper & Library Inspired) */
    --bg-primary: #FAF6F0;       /* Calm Warm Ivory Paper */
    --bg-secondary: #FFFFFF;     /* Elevated Card White */
    --text-primary: #0F172A;     /* Deep Slate Navy */
    --text-secondary: #475569;   /* Muted Slate Grey */
    --accent-gold: #B2945B;      /* Sophisticated Warm Gold */
    --accent-gold-hover: #967B48;
    --accent-gold-bg: #FCF8F2;   /* Soft Gold Tint */
    --accent-blue: #3B82F6;      /* Muted Blue for safe sync indicators */
    --border-color: #E2D9C8;     /* Warm border dividing grids */
    --shadow-sm: 0 2px 4px rgba(142, 126, 96, 0.05);
    --shadow-md: 0 8px 30px rgba(142, 126, 96, 0.1);
    --shadow-lg: 0 20px 50px rgba(142, 126, 96, 0.15);
    
    /* Code/Terminal Colors */
    --terminal-bg: #1E293B;
    --terminal-text: #F8FAFC;
    --terminal-green: #10B981;
    --terminal-yellow: #F59E0B;
    
    /* Status Colors */
    --color-success: #10B981;
    --color-error: #EF4444;
    --color-warning: #F59E0B;

    --transition-speed: 0.3s;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
}

body.dark-mode {
    /* Theme colors: Dark Mode (Ink & Night Library Inspired) */
    --bg-primary: #0E121A;       /* Ink Black/Deep Slate */
    --bg-secondary: #161B26;     /* Deep Charcoal Card */
    --text-primary: #F1F5F9;     /* Warm Silver */
    --text-secondary: #94A3B8;   /* Muted Silver */
    --accent-gold: #D4AF37;      /* Brightened Gold */
    --accent-gold-hover: #F3C63F;
    --accent-gold-bg: #22201D;   /* Dark Gold Tint */
    --accent-blue: #60A5FA;      /* Muted Blue */
    --border-color: #2A3345;     /* Dark Slate divider */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.5);
    
    --accent-gold-bg: #2C261A;
}

/* ==========================================
   Base Elements & Normalization
   ========================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}

a:hover {
    color: var(--accent-gold-hover);
}

code {
    font-family: var(--font-mono);
    background-color: var(--accent-gold-bg);
    color: var(--accent-gold);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

/* Utility classes */
.text-center { text-align: center; }
.margin-top-20 { margin-top: 20px; }
.success-color { color: var(--color-success); }
.error-color { color: var(--color-error); }
.text-gold { color: var(--accent-gold); }
.text-white { color: #ffffff !important; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border: none;
}

.btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--text-primary);
}

.btn-primary:hover {
    background-color: var(--accent-gold);
    color: #ffffff;
    border-color: var(--accent-gold);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(178, 148, 91, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--accent-gold-bg);
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    transform: translateY(-2px);
}

.btn-full-width {
    width: 100%;
}

/* ==========================================
   Header / Navigation Section
   ========================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: rgba(250, 246, 240, 0.85); /* Semi-transparent background */
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

body.dark-mode .main-header {
    background-color: rgba(14, 18, 26, 0.85);
}

/* Notice Banner Styles */
.test-notice-banner {
    background-color: var(--accent-gold-bg);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius-sm);
    display: inline-flex;
    margin: 0 auto 1.8rem;
    max-width: 800px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-speed) ease;
}

body.dark-mode .test-notice-banner {
    background-color: #22201d; /* Deep gold-tinted dark background */
}

.notice-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.notice-badge {
    display: inline-block;
    background-color: var(--accent-gold);
    color: #ffffff;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

body.dark-mode .notice-badge {
    color: #0e121a;
}

.notice-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 500;
    line-height: 1.4;
    text-align: center;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.brand-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.brand-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--text-primary);
    letter-spacing: -0.03em;
}

.desktop-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-item {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.nav-item:hover, .nav-item.active {
    color: var(--accent-gold);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-link {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    border-bottom: 1px solid transparent;
}

.btn-link:hover {
    color: var(--accent-gold);
    border-bottom-color: var(--accent-gold);
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

.mobile-menu {
    display: none;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mobile-nav-item {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ==========================================
   Hero Section & Interactive Client Mockup
   ========================================== */
.hero-section {
    position: relative;
    padding: 10rem 0 6rem;
    overflow: hidden;
}

.hero-bg-gradients {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.gradient-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
}

.sphere-1 {
    top: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-gold) 0%, transparent 70%);
}

.sphere-2 {
    bottom: -20%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text-align {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background-color: var(--accent-gold-bg);
    color: var(--accent-gold);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.04em;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Zotela Desktop App Mockup */
.hero-mockup-container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    perspective: 1000px;
}

.desktop-frame {
    background-color: #1e293b;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transform: translateY(0) rotateX(1deg);
    transition: transform var(--transition-speed) ease;
}

.frame-header {
    background-color: #0f172a;
    padding: 0.6rem 1rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.window-controls {
    display: flex;
    gap: 6px;
}

.window-controls .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.dot.red { background-color: #ef4444; }
.dot.yellow { background-color: #f59e0b; }
.dot.green { background-color: #10b981; }

.window-title {
    color: #94a3b8;
    font-size: 0.75rem;
    font-family: var(--font-body);
    margin-left: 2rem;
}

.app-body {
    display: grid;
    grid-template-columns: 200px 1fr;
    height: 480px;
    background-color: #0f172a;
}

/* Mock Sidebar */
.mock-sidebar {
    background-color: #0b0f19;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.sidebar-icon {
    width: 20px;
    height: 20px;
}

.sidebar-title {
    font-family: var(--font-heading);
    font-weight: 700;
    color: #ffffff;
    font-size: 1rem;
}

.sidebar-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    flex-grow: 1;
}

.sidebar-item {
    font-size: 0.8rem;
    color: #64748b;
    padding: 0.6rem 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.sidebar-item i {
    width: 14px;
}

.sidebar-item:hover, .sidebar-item.active {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.05);
}

.sidebar-item.active {
    background-color: rgba(178, 148, 91, 0.15);
    color: var(--accent-gold);
    font-weight: 600;
}

.sidebar-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1rem;
}

.pro-tag {
    font-size: 0.7rem;
    background-color: rgba(178, 148, 91, 0.2);
    color: var(--accent-gold);
    border: 1px solid rgba(178, 148, 91, 0.3);
    padding: 0.3rem 0.5rem;
    border-radius: 4px;
    text-align: center;
    font-weight: 600;
}

/* Mock Main Panel */
.mock-main {
    background-color: #0f172a;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.mock-panel-header {
    background-color: #0f172a;
    padding: 0.8rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sync-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: #94a3b8;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-indicator.online {
    background-color: #10b981;
    box-shadow: 0 0 8px #10b981;
}

.model-badge {
    background-color: rgba(255, 255, 255, 0.05);
    color: #cbd5e1;
    font-size: 0.7rem;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
    padding: 1.2rem;
}

.kpi-card {
    background-color: #1e293b;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 80px;
}

.kpi-label {
    font-size: 0.65rem;
    color: #64748b;
    text-transform: uppercase;
    font-weight: 600;
}

.kpi-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: #ffffff;
    font-family: var(--font-heading);
}

.kpi-change {
    font-size: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.kpi-change.positive { color: #10b981; }
.kpi-change.neutral { color: #94a3b8; }

.mock-dashboard-content {
    padding: 0 1.2rem 1.2rem;
    flex-grow: 1;
    display: flex;
}

.dashboard-card {
    background-color: #1e293b;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 1.2rem;
    width: 100%;
    display: flex;
    flex-direction: column;
}

.card-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 0.6rem;
}

.card-header-flex h4 {
    font-size: 0.9rem;
    color: #ffffff;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.meta-doc {
    font-size: 0.7rem;
    color: var(--accent-gold);
    font-family: var(--font-mono);
}

.socratic-dialogue-container {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    font-size: 0.8rem;
}

.dialogue-bubble {
    padding: 0.7rem 0.9rem;
    border-radius: 8px;
    max-width: 85%;
    line-height: 1.5;
}

.dialogue-bubble.user {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    align-self: flex-start;
}

.dialogue-bubble.ai {
    background-color: rgba(178, 148, 91, 0.08);
    border: 1px solid rgba(178, 148, 91, 0.15);
    align-self: flex-end;
}

.dialogue-bubble .speaker {
    display: block;
    font-weight: 700;
    font-size: 0.65rem;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
    letter-spacing: 0.05em;
}

.dialogue-bubble.user .speaker { color: #94a3b8; }
.dialogue-bubble.ai .speaker { color: var(--accent-gold); }

.dialogue-bubble p {
    color: #cbd5e1;
    margin: 0;
    font-size: 0.8rem;
}

/* ==========================================
   Philosophy Section (Idiographic)
   ========================================== */
.philosophy-section {
    padding: 8rem 0;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

body.dark-mode .philosophy-section {
    background-color: #121721;
}

.section-pretitle {
    display: block;
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
    color: var(--accent-gold);
    letter-spacing: 0.1em;
    margin-bottom: 0.6rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    max-width: 700px;
    font-size: 1.15rem;
    margin-bottom: 3rem;
}

.section-header.text-center .section-subtitle {
    margin-left: auto;
    margin-right: auto;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.philosophy-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 2.5rem;
    transition: all var(--transition-speed) ease;
}

.philosophy-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.philosophy-card.active {
    border-color: var(--accent-gold);
    box-shadow: var(--shadow-sm);
    background-color: var(--bg-secondary);
}

body.dark-mode .philosophy-card.active {
    background-color: var(--bg-secondary);
}

.card-icon {
    font-size: 2rem;
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
}

.philosophy-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}

.philosophy-card .subtitle {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--accent-gold);
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

.phil-list {
    list-style: none;
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.phil-list li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.quote-container {
    text-align: center;
    max-width: 800px;
    margin: 4rem auto 0;
    border-top: 1px solid var(--border-color);
    padding-top: 3rem;
}

.quote-text {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.4rem;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.quote-author {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent-gold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================
   Products Overview & Presentation
   ========================================== */
.products-section {
    padding: 6rem 0;
}

.products-container-bg {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

body.dark-mode .products-container-bg {
    background-color: #161b26;
}

.products-content-left {
    padding: 4rem;
}

.product-description {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
}

.product-specs {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.spec-item {
    display: flex;
    gap: 1.2rem;
    align-items: flex-start;
}

.spec-item i {
    font-size: 1.3rem;
    color: var(--accent-gold);
    background-color: var(--accent-gold-bg);
    border: 1px solid var(--border-color);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.spec-item div strong {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--text-primary);
    display: block;
    margin-bottom: 0.2rem;
}

.spec-item div p {
    font-size: 0.95rem;
    margin: 0;
}

.products-visual-right {
    background: radial-gradient(circle at 70% 30%, var(--accent-gold-bg) 0%, transparent 60%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    position: relative;
    border-left: 1px solid var(--border-color);
    transition: border-color var(--transition-speed) ease;
}

.mock-device-illustration {
    position: relative;
    width: 100%;
    max-width: 250px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.zotela-promo-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 2;
    filter: drop-shadow(0 15px 30px rgba(178, 148, 91, 0.2));
}

.glow-accent {
    position: absolute;
    width: 120%;
    height: 120%;
    background-color: var(--accent-gold);
    opacity: 0.1;
    filter: blur(40px);
    border-radius: 50%;
    z-index: 1;
}

/* ==========================================
   Spotlight & Feature Details Grid
   ========================================== */
.spotlight-section {
    padding: 8rem 0;
    border-top: 1px solid var(--border-color);
    transition: border-color var(--transition-speed) ease;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-item-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 2.2rem;
    transition: all var(--transition-speed) ease;
    box-shadow: var(--shadow-sm);
}

.feature-item-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-gold);
    box-shadow: var(--shadow-md);
}

body.dark-mode .feature-item-card {
    background-color: #161b26;
}

.feature-icon {
    font-size: 1.5rem;
    color: var(--accent-gold);
    background-color: var(--accent-gold-bg);
    border: 1px solid var(--border-color);
    width: 46px;
    height: 46px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.feature-item-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.8rem;
}

.feature-item-card p {
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.5;
}

/* ==========================================
   Interactive Sandbox Section (Simulator)
   ========================================== */
.sandbox-section {
    padding: 8rem 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

body.dark-mode .sandbox-section {
    background-color: #121721;
}

.sandbox-box {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    background-color: var(--bg-primary);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 280px 1fr;
    height: 520px;
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

body.dark-mode .sandbox-box {
    background-color: #0f131c;
}

.sandbox-tabs {
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

body.dark-mode .sandbox-tabs {
    background-color: #161b26;
}

.sandbox-tab-btn {
    background: none;
    border: 1px solid transparent;
    padding: 0.8rem 1rem;
    text-align: left;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.sandbox-tab-btn:hover {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.sandbox-tab-btn.active {
    background-color: var(--accent-gold-bg);
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.sandbox-viewport {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

.sandbox-tab-content {
    display: none;
    height: 100%;
}

.sandbox-tab-content.active {
    display: flex;
    flex-direction: column;
}

/* Tab 1: Safe Sync Graphic */
.sync-playground {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.sync-graphic {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem 0;
    flex-grow: 1;
}

.node-icon {
    width: 100px;
    height: 100px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    background-color: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    box-shadow: var(--shadow-sm);
    z-index: 2;
    transition: all var(--transition-speed) ease;
}

.node-icon i {
    font-size: 1.8rem;
    color: var(--text-secondary);
}

.node-icon span {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.zotero-node {
    border-color: #ef4444;
}
.zotero-node i { color: #ef4444; }

.temp-node {
    transition: all 0.5s ease;
}
.temp-node.synchronized {
    border-color: var(--color-success);
    background-color: rgba(16, 185, 129, 0.05);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}
.temp-node.synchronized i { color: var(--color-success); }
.temp-node.synchronized span { color: var(--color-success); }

.sync-arrow {
    width: 150px;
    height: 4px;
    background-color: var(--border-color);
    position: relative;
    border-radius: 10px;
}

.pulse-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--accent-blue);
    position: absolute;
    top: -4px;
    left: 0;
    opacity: 0;
    box-shadow: 0 0 8px var(--accent-blue);
}

@keyframes pulseThrough {
    0% { left: 0; opacity: 1; }
    90% { left: 90%; opacity: 1; }
    100% { left: 100%; opacity: 0; }
}

.sync-arrow.animating .pulse-dot {
    animation: pulseThrough 1.2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.sync-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.interactive-instruction {
    font-size: 0.95rem;
    margin: 0;
}

.terminal-log {
    background-color: var(--terminal-bg);
    color: var(--terminal-text);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.8rem 1.2rem;
    border-radius: var(--border-radius-sm);
    min-height: 40px;
    display: flex;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Tab 2: Document Quick Actions */
.document-playground {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 1.2rem;
}

.doc-selector-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.doc-selector-row label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
}

.doc-selector-row select {
    flex-grow: 1;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

.action-buttons-strip {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.action-btn {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

.action-btn:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.action-btn.active {
    background-color: var(--accent-gold);
    color: #ffffff;
    border-color: var(--accent-gold);
}

.sandbox-terminal {
    background-color: var(--terminal-bg);
    color: var(--terminal-text);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.terminal-header {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 0.5rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.terminal-title {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    color: #94a3b8;
}

.terminal-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--terminal-green);
}

.terminal-body {
    padding: 1.2rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.5;
    overflow-y: auto;
    flex-grow: 1;
    white-space: pre-wrap;
}

/* Tab 3: Multi-Doc Synthesis */
.synthesis-playground {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.synth-selection-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.synth-source-panel, .synth-focus-panel {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.synth-source-panel h5, .synth-focus-panel h5 {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-gold);
    margin: 0;
}

.mock-folders {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

body.dark-mode .mock-folders {
    background-color: #161b26;
}

.folder-row {
    padding: 0.6rem 0.8rem;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.folder-row:last-child {
    border-bottom: none;
}

.folder-row.selected {
    background-color: var(--accent-gold-bg);
    color: var(--accent-gold);
    font-weight: 600;
}

.folder-row i {
    font-size: 0.95rem;
}

.selected-count {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.synth-focus-panel select {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1rem;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
    margin-bottom: 0.5rem;
}

.terminal-indicator.pulse-yellow {
    background-color: var(--terminal-yellow);
    box-shadow: 0 0 8px var(--terminal-yellow);
}

.terminal-indicator.animating {
    animation: blinkIndicator 0.8s ease infinite alternate;
}

@keyframes blinkIndicator {
    0% { opacity: 0.3; }
    100% { opacity: 1; }
}

/* ==========================================
   Why Context Section (Perspectives)
   ========================================== */
.why-context-section {
    padding: 8rem 0;
    border-top: 1px solid var(--border-color);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.why-card {
    position: relative;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 3rem 2rem 2.2rem;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

body.dark-mode .why-card {
    background-color: #161b26;
}

.num-badge {
    position: absolute;
    top: -20px;
    left: 24px;
    width: 44px;
    height: 44px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--accent-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

body.dark-mode .num-badge {
    background-color: #0e121a;
}

.why-card h4 {
    font-size: 1.25rem;
    margin-bottom: 0.8rem;
}

.why-card p {
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.6;
}

/* ==========================================
   Vision Section (Manifesto)
   ========================================== */
.vision-section {
    padding: 8rem 0;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

body.dark-mode .vision-section {
    background-color: #121721;
}

.vision-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.vision-text-side p {
    font-size: 1.1rem;
    line-height: 1.6;
}

.vision-interactive-graphic {
    display: flex;
    justify-content: center;
}

.constellation-canvas {
    width: 320px;
    height: 320px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

body.dark-mode .constellation-canvas {
    background-color: #0e121a;
}

.constellation-canvas .node {
    position: absolute;
    width: 44px;
    height: 44px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-gold);
    font-size: 1.1rem;
    z-index: 5;
    box-shadow: var(--shadow-sm);
    transition: all 0.5s ease;
}

body.dark-mode .constellation-canvas .node {
    background-color: #161b26;
}

.constellation-canvas:hover .node {
    transform: scale(1.1);
    border-color: var(--accent-gold);
    box-shadow: 0 0 12px rgba(178, 148, 91, 0.3);
}

.line-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.c-line {
    stroke: var(--border-color);
    stroke-width: 1.5;
    stroke-dasharray: 4;
}

/* ==========================================
   Call To Action (CTA) Section
   ========================================== */
.cta-section {
    padding: 8rem 0;
    background: radial-gradient(circle at 50% 50%, var(--accent-gold-bg) 0%, transparent 80%);
    border-top: 1px solid var(--border-color);
}

.cta-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.cta-subtitle {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.pricing-badge-row {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.pricing-badge {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pricing-badge i {
    color: var(--accent-gold);
}

/* ==========================================
   Footer Section
   ========================================== */
.main-footer {
    background-color: #0b0f19;
    color: #94a3b8;
    padding: 5rem 0 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand-column {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.footer-brand-column .brand-link {
    pointer-events: none;
}

.brand-moto {
    font-size: 0.95rem;
    color: #64748b;
    line-height: 1.5;
    margin: 0;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: #475569;
    font-size: 1.2rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed) ease;
}

.social-links a:hover {
    color: var(--accent-gold);
    border-color: var(--accent-gold);
    background-color: rgba(255, 255, 255, 0.03);
}

.footer-links-column {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-links-column h5 {
    color: #ffffff;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links-column a {
    color: #64748b;
    transition: color 0.2s ease;
}

.footer-links-column a:hover {
    color: var(--accent-gold);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
    color: #475569;
    font-size: 0.8rem;
}

.footer-bottom p {
    color: #475569;
    margin-bottom: 0.5rem;
}

.final-philosophical-line {
    font-family: var(--font-heading);
    font-weight: 500;
    font-style: italic;
    color: #64748b !important;
    font-size: 0.95rem;
    margin-top: 1.5rem;
}

/* ==========================================
   Responsive Breakpoints & Adjustments
   ========================================== */

/* Tablet Viewports */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .products-container-bg {
        grid-template-columns: 1fr;
    }
    .products-visual-right {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding: 3rem;
    }
    .sandbox-box {
        grid-template-columns: 1fr;
        height: auto;
    }
    .sandbox-tabs {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        flex-direction: row;
        overflow-x: auto;
        padding: 1rem;
    }
    .sandbox-tab-btn {
        white-space: nowrap;
    }
    .sandbox-viewport {
        padding: 2rem 1.5rem;
        min-height: 400px;
    }
}

/* Mobile Viewports */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .desktop-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.3rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .philosophy-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .vision-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .products-content-left {
        padding: 2rem;
    }
    
    .synth-selection-grid {
        grid-template-columns: 1fr;
    }
    
    .app-body {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .mock-sidebar {
        display: none;
    }
    
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}