/* ═══════════════════════════════════════════════════════════════
   BRAIN LEAD — DESIGN SYSTEM (brain-system.css)
   Master stylesheet shared by ALL pages via base.html
   ═══════════════════════════════════════════════════════════════ */

/* ─── CSS CUSTOM PROPERTIES ─── */
:root {
    /* Core palette */
    --void: #030014;
    --void-light: #0a0525;
    --void-lighter: #120a35;
    --neural-cyan: #00f0ff;
    --neural-purple: #8b5cf6;
    --synapse-pink: #ff006e;
    --plasma-green: #00ff88;
    --neural-amber: #ffaa00;

    /* Text */
    --text-primary: #f0f0f0;
    --text-secondary: rgba(255, 255, 255, 0.5);
    --text-tertiary: rgba(255, 255, 255, 0.3);

    /* Glass */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(0, 240, 255, 0.2);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--neural-cyan), var(--neural-purple));
    --gradient-secondary: linear-gradient(135deg, var(--neural-purple), var(--synapse-pink));
    --gradient-success: linear-gradient(135deg, var(--plasma-green), var(--neural-cyan));
    --gradient-warning: linear-gradient(135deg, var(--neural-amber), var(--synapse-pink));

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow-cyan: 0 0 20px rgba(0, 240, 255, 0.15), 0 0 40px rgba(0, 240, 255, 0.05);
    --shadow-glow-purple: 0 0 20px rgba(139, 92, 246, 0.15), 0 0 40px rgba(139, 92, 246, 0.05);

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-pill: 100px;

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 0.2s;
    --duration-normal: 0.4s;
    --duration-slow: 0.6s;

    /* Layout */
    --max-width: 1200px;
    --nav-height: 70px;
}

/* ─── RESET ─── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--void);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--void);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

a {
    color: var(--neural-cyan);
    text-decoration: none;
    transition: color var(--duration-fast) ease;
}
a:hover {
    color: #fff;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

/* ─── LAYOUT ─── */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-sm {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-lg {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* ─── GRIDS ─── */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}
.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

/* ─── TYPOGRAPHY ─── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.01em; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; font-weight: 700; }

p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-secondary {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-cyan { color: var(--neural-cyan); }
.text-purple { color: var(--neural-purple); }
.text-pink { color: var(--synapse-pink); }
.text-green { color: var(--plasma-green); }
.text-amber { color: var(--neural-amber); }
.text-muted { color: var(--text-secondary); }

.section-title {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-3xl);
    line-height: 1.8;
}

.mono { font-family: var(--font-mono); }

/* ─── PAGE HERO (Inner pages) ─── */
.page-hero {
    padding: calc(var(--nav-height) + var(--space-4xl)) var(--space-xl) var(--space-4xl);
    text-align: center;
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(0, 240, 255, 0.06) 0%, transparent 40%),
        var(--void);
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.page-hero .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: var(--radius-pill);
    padding: 8px 20px;
    font-size: 0.8rem;
    color: var(--neural-cyan);
    font-weight: 500;
    margin-bottom: var(--space-xl);
}

.page-hero h1 {
    margin-bottom: var(--space-lg);
}

.page-hero p {
    font-size: 1.15rem;
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.8;
}

.page-hero .hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-2xl);
}

/* ─── SECTION ─── */
.section {
    padding: var(--space-4xl) var(--space-xl);
    position: relative;
}

.section-dark {
    background:
        radial-gradient(ellipse at 50% 50%, rgba(139, 92, 246, 0.05) 0%, transparent 60%),
        var(--void);
}

.section-alt {
    background: var(--void-light);
}

.section-divider {
    width: 100%;
    height: 1px;
    background: var(--glass-border);
    border: none;
    margin: 0;
}

/* ─── BUTTONS ─── */
.btn-neural {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--gradient-primary);
    color: #000;
    font-weight: 700;
    padding: 14px 32px;
    border-radius: var(--radius-pill);
    border: none;
    font-size: 0.95rem;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.2), 0 0 40px rgba(0, 240, 255, 0.05);
    font-family: var(--font-body);
    text-decoration: none;
}

.btn-neural:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.35), 0 0 60px rgba(0, 240, 255, 0.1);
    color: #000;
}

.btn-neural::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-neural:hover::before {
    left: 100%;
}

.btn-neural-sm {
    padding: 10px 22px;
    font-size: 0.85rem;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    padding: 14px 32px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    font-family: var(--font-body);
    text-decoration: none;
}

.btn-ghost:hover {
    border-color: var(--neural-cyan);
    color: var(--neural-cyan);
    background: rgba(0, 240, 255, 0.05);
    transform: translateY(-2px);
}

.btn-ghost-sm {
    padding: 10px 22px;
    font-size: 0.85rem;
}

.btn-danger {
    background: var(--gradient-warning);
    color: #fff;
    font-weight: 700;
    padding: 14px 32px;
    border-radius: var(--radius-pill);
    border: none;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
}

.btn-success {
    background: var(--gradient-success);
    color: #000;
    font-weight: 700;
    padding: 14px 32px;
    border-radius: var(--radius-pill);
    border: none;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
}

.btn-group {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ─── GLASS CARDS ─── */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--duration-slow) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(0, 240, 255, 0.06) 0%,
        transparent 60%
    );
    opacity: 0;
    transition: opacity var(--duration-normal) ease;
    pointer-events: none;
}

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

.glass-card:hover::before {
    opacity: 1;
}

.glass-card-flat {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

/* ─── FEATURE CARDS ─── */
.feature-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    transition: all var(--duration-slow) var(--ease-out);
    position: relative;
}

.feature-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.feature-card .feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: var(--space-lg);
}

.feature-icon.cyan {
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(139, 92, 246, 0.15));
    color: var(--neural-cyan);
}
.feature-icon.purple {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(255, 0, 110, 0.15));
    color: var(--neural-purple);
}
.feature-icon.green {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.15), rgba(0, 240, 255, 0.15));
    color: var(--plasma-green);
}
.feature-icon.pink {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.15), rgba(255, 170, 0, 0.15));
    color: var(--synapse-pink);
}
.feature-icon.amber {
    background: linear-gradient(135deg, rgba(255, 170, 0, 0.15), rgba(255, 0, 110, 0.15));
    color: var(--neural-amber);
}

.feature-card h4 {
    margin-bottom: var(--space-sm);
}
.feature-card p {
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ─── STAT CARDS ─── */
.stat-card {
    text-align: center;
    padding: var(--space-xl);
}

.stat-card .stat-number {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--neural-cyan);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-card .stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ─── BADGES ─── */
.badge-neural {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.badge-cyan {
    background: rgba(0, 240, 255, 0.1);
    color: var(--neural-cyan);
    border: 1px solid rgba(0, 240, 255, 0.2);
}

.badge-purple {
    background: rgba(139, 92, 246, 0.1);
    color: var(--neural-purple);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.badge-green {
    background: rgba(0, 255, 136, 0.1);
    color: var(--plasma-green);
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.badge-pink {
    background: rgba(255, 0, 110, 0.1);
    color: var(--synapse-pink);
    border: 1px solid rgba(255, 0, 110, 0.2);
}

.badge-amber {
    background: rgba(255, 170, 0, 0.1);
    color: var(--neural-amber);
    border: 1px solid rgba(255, 170, 0, 0.2);
}

/* ─── TERMINAL / CODE BLOCKS ─── */
.terminal-block {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--glass-border);
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

.terminal-title {
    font-size: 0.72rem;
    color: var(--text-tertiary);
    margin-left: 8px;
}

.terminal-body {
    padding: var(--space-lg);
    line-height: 2;
    overflow-x: auto;
}

.terminal-body .line-comment { color: var(--text-tertiary); }
.terminal-body .line-keyword { color: var(--neural-purple); }
.terminal-body .line-string { color: var(--plasma-green); }
.terminal-body .line-method { color: var(--neural-cyan); }
.terminal-body .line-response { color: var(--neural-amber); }
.terminal-body .line-number { color: var(--synapse-pink); }

.cursor-blink {
    display: inline-block;
    width: 8px;
    height: 16px;
    background: var(--neural-cyan);
    animation: blink 1s step-end infinite;
    vertical-align: middle;
}

/* ─── FORMS ─── */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--duration-fast) ease;
    outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--neural-cyan);
    box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
    background: rgba(255, 255, 255, 0.06);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-tertiary);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='rgba(255,255,255,0.5)' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-helper {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-top: 6px;
}

.form-error {
    font-size: 0.8rem;
    color: var(--synapse-pink);
    margin-top: 6px;
}

/* ─── ACCORDION ─── */
.accordion {
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.accordion-item {
    border-bottom: 1px solid var(--glass-border);
}
.accordion-item:last-child {
    border-bottom: none;
}

.accordion-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--duration-fast) ease;
    text-align: left;
}

.accordion-trigger:hover {
    background: var(--glass-bg);
}

.accordion-trigger i {
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: transform var(--duration-normal) var(--ease-out);
}

.accordion-item.active .accordion-trigger i {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-normal) var(--ease-out);
}

.accordion-item.active .accordion-content {
    max-height: 500px;
}

.accordion-body {
    padding: 0 var(--space-xl) var(--space-lg);
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ─── TABS ─── */
.tab-nav {
    display: flex;
    gap: 4px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    padding: 4px;
    border: 1px solid var(--glass-border);
    overflow-x: auto;
}

.tab-btn {
    padding: 10px 20px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--duration-fast) ease;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: #000;
}

.tab-content {
    display: none;
    padding: var(--space-xl) 0;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* ─── TABLES ─── */
.table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
}

.neural-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.neural-table thead {
    background: rgba(255, 255, 255, 0.03);
}

.neural-table th {
    padding: 14px 18px;
    text-align: left;
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--glass-border);
}

.neural-table td {
    padding: 14px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

.neural-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.neural-table tbody tr:last-child td {
    border-bottom: none;
}

/* ─── PRICING CARDS ─── */
.pricing-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    position: relative;
    transition: all var(--duration-slow) var(--ease-out);
}

.pricing-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
}

.pricing-card.featured {
    border-color: rgba(0, 240, 255, 0.3);
    box-shadow: var(--shadow-glow-cyan);
}

.pricing-card.featured::before {
    content: 'MOST POPULAR';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: #000;
    font-size: 0.7rem;
    font-weight: 800;
    padding: 4px 16px;
    border-radius: var(--radius-pill);
    letter-spacing: 1px;
}

.pricing-card .plan-name {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--neural-cyan);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-md);
}

.pricing-card .plan-price {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.pricing-card .plan-price .period {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.pricing-card .plan-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.pricing-card .plan-features {
    margin-bottom: var(--space-xl);
}

.pricing-card .plan-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.pricing-card .plan-features li i {
    color: var(--plasma-green);
    font-size: 0.8rem;
    width: 16px;
}

.pricing-card .plan-features li.disabled {
    opacity: 0.4;
}

.pricing-card .plan-features li.disabled i {
    color: var(--text-tertiary);
}

/* ─── ALERT BANNERS ─── */
.alert {
    padding: var(--space-lg) var(--space-xl);
    border-radius: var(--radius-md);
    border: 1px solid;
    font-size: 0.9rem;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: var(--space-lg);
}

.alert-info {
    background: rgba(0, 240, 255, 0.05);
    border-color: rgba(0, 240, 255, 0.2);
    color: var(--neural-cyan);
}

.alert-success {
    background: rgba(0, 255, 136, 0.05);
    border-color: rgba(0, 255, 136, 0.2);
    color: var(--plasma-green);
}

.alert-warning {
    background: rgba(255, 170, 0, 0.05);
    border-color: rgba(255, 170, 0, 0.2);
    color: var(--neural-amber);
}

.alert-error {
    background: rgba(255, 0, 110, 0.05);
    border-color: rgba(255, 0, 110, 0.2);
    color: var(--synapse-pink);
}

/* ─── TOOLTIP ─── */
[data-tooltip] {
    position: relative;
}
[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: var(--text-primary);
    font-size: 0.75rem;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-fast) ease;
}
[data-tooltip]:hover::after {
    opacity: 1;
}

/* ─── DIVIDERS ─── */
.divider {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin: var(--space-2xl) 0;
}
.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--glass-border);
}
.divider span {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ─── NAVIGATION (base.html) ─── */
.bl-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 var(--space-xl);
    height: var(--nav-height);
    display: flex;
    align-items: center;
    background: rgba(3, 0, 20, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--duration-normal) ease;
}

.bl-navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.bl-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
}

.bl-logo:hover {
    color: var(--text-primary);
}

.bl-logo img {
    height: 32px;
    width: auto;
}

.bl-nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
}

.bl-nav-links li a {
    padding: 8px 16px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast) ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.bl-nav-links li a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.bl-nav-cta {
    background: var(--gradient-primary) !important;
    color: #000 !important;
    font-weight: 700 !important;
    border-radius: var(--radius-pill) !important;
    padding: 8px 24px !important;
}

.bl-nav-cta:hover {
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
    transform: translateY(-1px);
}

.bl-nav-free {
    color: var(--neural-cyan) !important;
}

/* Dropdown */
.bl-dropdown {
    position: relative;
}

.bl-dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: rgba(3, 0, 20, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.bl-dropdown:hover .bl-dropdown-content {
    display: block;
    animation: fadeIn 0.2s ease;
}

.bl-dropdown-content a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast) ease;
}

.bl-dropdown-content a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

/* Mobile toggle */
.bl-mobile-toggle {
    display: none;
    background: none;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
}

/* ─── FOOTER ─── */
.bl-footer {
    background: rgba(0, 0, 0, 0.4);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-3xl) var(--space-xl) var(--space-lg);
}

.bl-footer-grid {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
}

.bl-footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-top: var(--space-sm);
}

.bl-footer h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.bl-footer-links li {
    margin-bottom: var(--space-sm);
}

.bl-footer-links li a {
    color: var(--text-secondary);
    font-size: 0.88rem;
    transition: color var(--duration-fast) ease;
}

.bl-footer-links li a:hover {
    color: var(--text-primary);
}

.bl-footer-bottom {
    max-width: var(--max-width);
    margin: var(--space-2xl) auto 0;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.bl-footer-social {
    display: flex;
    gap: var(--space-md);
}

.bl-footer-social a {
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: color var(--duration-fast) ease;
}

.bl-footer-social a:hover {
    color: var(--neural-cyan);
}

/* ─── TELEGRAM FLOAT ─── */
.bl-telegram-float {
    position: fixed;
    bottom: 30px;
    left: 30px;
    z-index: 1000;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0088cc, #00aaff);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.4rem;
    box-shadow: 0 4px 20px rgba(0, 136, 204, 0.4);
    transition: all var(--duration-normal) var(--ease-out);
    text-decoration: none;
}

.bl-telegram-float:hover {
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 136, 204, 0.5);
    color: #fff;
}

.bl-telegram-float .tooltip-label {
    position: absolute;
    left: calc(100% + 12px);
    background: rgba(0, 0, 0, 0.9);
    color: #fff;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-fast) ease;
}

.bl-telegram-float:hover .tooltip-label {
    opacity: 1;
}

/* ─── STEP WIZARD ─── */
.step-wizard {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: var(--space-3xl);
}

.step-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    transition: all var(--duration-normal) ease;
}

.step-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.step-item.active .step-number {
    background: var(--gradient-primary);
    border-color: transparent;
    color: #000;
}

.step-item.active .step-label {
    color: var(--text-primary);
}

.step-item.completed .step-number {
    background: var(--plasma-green);
    border-color: transparent;
    color: #000;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: var(--glass-border);
    margin: 0 var(--space-md);
}

.step-connector.active {
    background: var(--gradient-primary);
}

/* ─── STATUS INDICATORS ─── */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.status-dot.online { background: var(--plasma-green); box-shadow: 0 0 8px var(--plasma-green); }
.status-dot.offline { background: var(--synapse-pink); }
.status-dot.pending { background: var(--neural-amber); animation: pulse 2s ease infinite; }

/* ─── ANIMATIONS ─── */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes blink {
    50% { opacity: 0; }
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px rgba(0, 240, 255, 0.2); }
    50% { box-shadow: 0 0 25px rgba(0, 240, 255, 0.4); }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s var(--ease-out);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ─── UTILITY ─── */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.w-full { width: 100%; }
.mx-auto { margin-left: auto; margin-right: auto; }
.relative { position: relative; }
.overflow-hidden { overflow: hidden; }
.hidden { display: none; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ─── LOADING SPINNER ─── */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--neural-cyan);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }

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

@media (max-width: 768px) {
    :root {
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 3rem;
        --space-4xl: 4rem;
    }

    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .bl-mobile-toggle {
        display: flex;
    }

    .bl-nav-links {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(3, 0, 20, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-xl);
        gap: var(--space-xs);
        z-index: 999;
    }

    .bl-nav-links.active {
        display: flex;
        animation: fadeInDown 0.3s ease;
    }

    .bl-nav-links li a {
        padding: 14px 16px;
        font-size: 1rem;
    }

    .bl-dropdown-content {
        position: static;
        display: none;
        border: none;
        background: rgba(255, 255, 255, 0.02);
        border-radius: var(--radius-sm);
        margin-top: var(--space-xs);
        box-shadow: none;
    }

    .bl-dropdown.open .bl-dropdown-content {
        display: block;
    }

    .bl-footer-grid {
        grid-template-columns: 1fr;
    }

    .bl-footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }

    .page-hero {
        padding: calc(var(--nav-height) + var(--space-2xl)) var(--space-lg) var(--space-2xl);
    }

    .step-wizard {
        flex-direction: column;
        gap: var(--space-md);
    }

    .step-connector {
        width: 2px;
        height: 30px;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }

    .page-hero .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn-neural, .btn-ghost {
        width: 100%;
        justify-content: center;
    }
}


/* ── 17. NEURAL NEXUS SIDEBAR NAVIGATION (PERSISTENT) ── */
.nexus-trigger {
    position: fixed;
    top: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(3,0,20,0.65);
    border: 1px solid rgba(0,240,255,0.25);
    box-shadow: 0 0 15px rgba(0,240,255,0.15), inset 0 0 10px rgba(0,240,255,0.1);
    z-index: 10002;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.5s cubic-bezier(0.16,1,0.3,1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

body:not(.nexus-open) .nexus-trigger {
    animation: trigger-pulse 3s ease infinite;
}

@keyframes trigger-pulse {
    0%, 100% { box-shadow: 0 0 15px rgba(0,240,255,0.15); }
    50% { box-shadow: 0 0 25px rgba(0,240,255,0.4), 0 0 40px rgba(139,92,246,0.15); border-color: rgba(0,240,255,0.5); }
}

.nexus-trigger:hover {
    transform: scale(1.1) rotate(10deg);
    border-color: var(--neural-cyan);
    box-shadow: 0 0 30px rgba(0,240,255,0.4), inset 0 0 15px rgba(0,240,255,0.2);
}

.nexus-trigger-glow {
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--neural-cyan), var(--neural-purple));
    z-index: -1;
    opacity: 0.3;
    filter: blur(4px);
    transition: opacity 0.5s;
}

.nexus-trigger:hover .nexus-trigger-glow {
    opacity: 0.8;
}

.nexus-trigger-core {
    color: var(--neural-cyan);
    font-size: 1.4rem;
    transition: all 0.3s;
}

.nexus-trigger:hover .nexus-trigger-core {
    color: white;
    text-shadow: 0 0 10px var(--neural-cyan);
}

.nexus-trigger-rings {
    position: absolute;
    inset: -10px;
    border: 1px solid rgba(0,240,255,0.15);
    border-radius: 50%;
    animation: wave-ripple 3s infinite linear;
    pointer-events: none;
}

.nexus-trigger-rings:nth-child(3) {
    animation-delay: 1.5s;
}

@keyframes wave-ripple {
    0% { transform: scale(0.8); opacity: 0.8; }
    100% { transform: scale(1.4); opacity: 0; }
}

/* Sidebar */
.nexus-sidebar {
    position: fixed;
    right: -420px;
    top: 0;
    width: 400px;
    height: 100vh;
    background: rgba(3,0,20,0.95);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-left: 1px solid rgba(0,240,255,0.15);
    z-index: 10001;
    transition: right 0.6s cubic-bezier(0.16,1,0.3,1);
    padding: 2.5rem 1.8rem;
    display: flex;
    flex-direction: column;
    box-shadow: -20px 0 60px rgba(0,0,0,0.7);
}

.nexus-sidebar.active {
    right: 0;
}

.nexus-close {
    position: absolute;
    top: 24px;
    left: 24px;
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.4);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.3s, transform 0.3s;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nexus-close:hover {
    color: var(--synapse-pink);
    transform: rotate(90deg);
}

.nexus-hud-status {
    display: flex;
    justify-content: space-between;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6rem;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    padding-bottom: 12px;
    margin-bottom: 1.5rem;
    margin-top: 2rem;
}

.hud-item {
    display: flex;
    gap: 6px;
}

.hud-label { color: rgba(255,255,255,0.3); }
.hud-value { color: var(--neural-amber); }
.hud-value.active { color: var(--plasma-green); text-shadow: 0 0 8px var(--plasma-green); }

.nexus-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    scrollbar-width: none;
}

.nexus-content::-webkit-scrollbar { display: none; }

.nexus-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.5rem;
    align-self: center;
}

.nexus-logo img {
    width: 32px;
    height: 32px;
    filter: drop-shadow(0 0 8px rgba(0,240,255,0.5));
}

.nexus-logo span {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.3rem;
    font-weight: 800;
    color: white;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff, var(--text-secondary));
    -webkit-background-clip: text;
    background-clip: text;
}

/* Holographic menu */
.nexus-menu {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 1.5rem;
}

.nexus-menu-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 16px;
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid transparent;
    transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
    position: relative;
    overflow: hidden;
}

.nexus-menu-item i {
    width: 20px;
    font-size: 0.95rem;
    transition: all 0.3s;
    color: rgba(255,255,255,0.3);
}

.nexus-menu-item:hover,
.nexus-menu-item.active {
    color: white;
    background: rgba(0,240,255,0.04);
    border-color: rgba(0,240,255,0.15);
    box-shadow: 0 0 15px rgba(0,240,255,0.05);
}

.nexus-menu-item:hover i,
.nexus-menu-item.active i {
    color: var(--neural-cyan);
    text-shadow: 0 0 8px var(--neural-cyan);
}

.nexus-menu-item.active {
    background: linear-gradient(90deg, rgba(0,240,255,0.08) 0%, transparent 100%);
    border-left: 3px solid var(--neural-cyan);
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
}

/* AI Chat Container */
.nexus-ai-container {
    background: rgba(0,0,0,0.6);
    border: 1px solid rgba(0,240,255,0.15);
    border-radius: 16px;
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    height: 280px;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.5);
    margin-top: auto;
}

.nexus-ai-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--neural-cyan);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 6px;
    margin-bottom: 6px;
}

.ai-status-indicator {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--plasma-green);
    box-shadow: 0 0 6px var(--plasma-green);
    margin-left: auto;
    animation: badge-blink 2s ease infinite;
}

.nexus-ai-chat {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 4px;
    margin-bottom: 6px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.05) transparent;
}

.nexus-ai-chat::-webkit-scrollbar { width: 3px; }
.nexus-ai-chat::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.05); border-radius: 2px; }

.ai-msg {
    display: flex;
    flex-direction: column;
    max-width: 88%;
    font-size: 0.65rem;
    line-height: 1.4;
    padding: 6px 10px;
    border-radius: 10px;
}

.ai-msg.bot {
    background: rgba(0,240,255,0.05);
    color: #e0f8ff;
    align-self: flex-start;
    border-bottom-left-radius: 2px;
    border: 1px solid rgba(0,240,255,0.1);
}

.ai-msg.user {
    background: rgba(139,92,246,0.1);
    color: #f3efff;
    align-self: flex-end;
    border-bottom-right-radius: 2px;
    border: 1px solid rgba(139,92,246,0.15);
}

.ai-sender {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.5rem;
    font-weight: 700;
    margin-bottom: 2px;
    text-transform: uppercase;
}

.ai-msg.bot .ai-sender { color: var(--neural-cyan); }
.ai-msg.user .ai-sender { color: var(--neural-purple); }

.nexus-ai-input-group {
    display: flex;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 8px;
    padding: 3px;
    align-items: center;
}

.nexus-ai-input-group input {
    flex: 1;
    background: transparent;
    border: none;
    color: white;
    font-size: 0.68rem;
    padding: 5px 8px;
    font-family: 'Inter', sans-serif;
}

.nexus-ai-input-group input:focus {
    outline: none;
}

.nexus-ai-input-group button {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.4);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.nexus-ai-input-group button:hover {
    color: var(--neural-cyan);
    background: rgba(0,240,255,0.1);
}

/* Chat typing loading bubble */
.ai-msg.bot.typing-bubble {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
}
.typing-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--neural-cyan);
    animation: typing-bounce 1.4s infinite ease-in-out;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-bounce {
    0%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-4px); }
}

/* Hide dot nav when sidebar is active */
body.nexus-open .neural-nav {
    opacity: 0;
    pointer-events: none;
}

@media (max-width: 768px) {
    .nexus-sidebar {
        width: 320px;
        right: -340px;
    }
}

@media (max-width: 480px) {
    .nexus-sidebar {
        width: 100%;
        right: -100%;
        padding: 2.5rem 1.2rem;
    }
    .nexus-trigger {
        top: 16px;
        right: 16px;
        width: 50px;
        height: 50px;
    }
}