/* ══════════════════════════════════════════════════════════
   Cerberus Development, Inc. — Global Design System
   Dark theme · Electric cyan accent · Glassmorphism
   ══════════════════════════════════════════════════════════ */

/* ── Design Tokens ──────────────────────────────────────── */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a2e;
    --bg-card-hover: #222240;
    --bg-glass: rgba(26, 26, 46, 0.85);
    --bg-glass-border: rgba(0, 191, 255, 0.12);

    --accent: #00BFFF;
    --accent-dark: #0099cc;
    --accent-light: #33ccff;
    --accent-glow: 0 0 20px rgba(0, 191, 255, 0.3);
    --accent-glow-strong: 0 0 40px rgba(0, 191, 255, 0.5);
    --accent-gradient: linear-gradient(135deg, #00BFFF, #0099cc);

    --text-primary: #f0f0f0;
    --text-secondary: #a0a0b0;
    --text-muted: #666680;
    --text-on-accent: #0a0a0f;

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-accent: rgba(0, 191, 255, 0.2);

    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;

    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
    --shadow-elevated: 0 8px 40px rgba(0, 0, 0, 0.6);
}

/* ── Reset & Base ───────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: 3.2rem; }
h2 { font-size: 2.4rem; }
h3 { font-size: 1.6rem; }
h4 { font-size: 1.25rem; }

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

::selection {
    background: var(--accent);
    color: var(--bg-primary);
}

/* ── Skip Link ──────────────────────────────────────────── */
.skip-link {
    position: fixed;
    top: -100%;
    left: 1rem;
    z-index: 9999;
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: var(--text-on-accent);
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 1rem;
    color: var(--text-on-accent);
    box-shadow: var(--accent-glow-strong);
}

/* ── Bootstrap Dark Overrides ───────────────────────────── */
.btn-primary {
    background: var(--accent-gradient);
    border: none;
    color: var(--text-on-accent);
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    letter-spacing: 0.02em;
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--accent-light);
    color: var(--text-on-accent);
    box-shadow: var(--accent-glow);
    transform: translateY(-2px);
}

.btn-outline-accent {
    border: 1px solid var(--accent);
    color: var(--accent);
    background: transparent;
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.btn-outline-accent:hover,
.btn-outline-accent:focus {
    background: var(--accent);
    color: var(--text-on-accent);
    box-shadow: var(--accent-glow);
    transform: translateY(-2px);
}

/* ── Glassmorphism Card ─────────────────────────────────── */
.glass-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-base);
}

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

/* ── Section Utilities ──────────────────────────────────── */
.section-dark {
    background-color: var(--bg-primary);
    padding: 6rem 0;
}

.section-darker {
    background-color: var(--bg-secondary);
    padding: 6rem 0;
}

.section-label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 0.75rem;
    display: block;
}

.section-title {
    font-size: 2.6rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 640px;
}

.accent-line {
    width: 60px;
    height: 3px;
    background: var(--accent-gradient);
    border-radius: 2px;
    margin-bottom: 2rem;
}

/* ── Scroll Animations ──────────────────────────────────── */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Form Controls (Dark) ───────────────────────────────── */
.form-control,
.form-select {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-card);
    border-color: var(--accent);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(0, 191, 255, 0.15);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-label {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

/* ── Icon Circle ────────────────────────────────────────── */
.icon-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(0, 191, 255, 0.1);
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    flex-shrink: 0;
    transition: all var(--transition-base);
}

.glass-card:hover .icon-circle {
    background: var(--accent);
    color: var(--text-on-accent);
    box-shadow: var(--accent-glow);
}

/* ── Stats Counter ──────────────────────────────────────── */
.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 0.5rem;
}

/* ── Navbar ─────────────────────────────────────────────── */
.navbar-cerberus {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.8rem 0;
    transition: all var(--transition-base);
    z-index: 1050;
}

.navbar-cerberus.scrolled {
    background: rgba(10, 10, 15, 0.97);
    border-bottom-color: var(--border-accent);
    padding: 0.5rem 0;
}

.navbar-cerberus .navbar-brand img {
    height: 46px;
    width: auto;
    transition: height var(--transition-base);
}

.navbar-cerberus.scrolled .navbar-brand img {
    height: 36px;
}

.navbar-cerberus .nav-link {
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0.03em;
    padding: 0.5rem 1rem;
    transition: color var(--transition-fast);
    position: relative;
}

.navbar-cerberus .nav-link:hover,
.navbar-cerberus .nav-link.active {
    color: var(--accent);
}

.navbar-cerberus .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}

.navbar-cerberus .navbar-toggler {
    border-color: var(--border-accent);
    padding: 0.4rem 0.6rem;
}

.navbar-cerberus .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2300BFFF' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ── Footer ─────────────────────────────────────────────── */
.footer-cerberus {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    padding: 4rem 0 0;
}

.footer-cerberus h5 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1.25rem;
}

.footer-cerberus .footer-link {
    color: var(--text-secondary);
    display: block;
    padding: 0.25rem 0;
    font-size: 0.9rem;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-cerberus .footer-link:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-cerberus .footer-bottom {
    border-top: 1px solid var(--border-subtle);
    padding: 1.5rem 0;
    margin-top: 3rem;
}

.footer-cerberus .social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-right: 0.5rem;
    transition: all var(--transition-base);
}

.footer-cerberus .social-icon:hover {
    background: var(--accent);
    color: var(--text-on-accent);
    border-color: var(--accent);
    box-shadow: var(--accent-glow);
    transform: translateY(-2px);
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 991.98px) {
    h1 { font-size: 2.4rem; }
    h2 { font-size: 1.8rem; }
    .section-title { font-size: 2rem; }
    .section-dark,
    .section-darker { padding: 4rem 0; }
    .stat-number { font-size: 2.2rem; }
}

@media (max-width: 575.98px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    .section-title { font-size: 1.6rem; }
    .section-dark,
    .section-darker { padding: 3rem 0; }
    .btn-primary,
    .btn-outline-accent { padding: 0.6rem 1.5rem; }
}

/* ── Command Palette ────────────────────────────────────── */
.command-palette-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.command-palette-overlay.open {
    opacity: 1;
    visibility: visible;
}

.command-palette-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.command-palette-modal {
    position: relative;
    width: 100%;
    max-width: 560px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-elevated), var(--accent-glow);
    overflow: hidden;
    transform: translateY(-10px);
    transition: transform 0.2s ease;
}

.command-palette-overlay.open .command-palette-modal {
    transform: translateY(0);
}

.command-palette-input-wrap {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
    gap: 0.75rem;
}

.command-palette-icon {
    color: var(--accent);
    font-size: 1rem;
}

.command-palette-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
}

.command-palette-input::placeholder {
    color: var(--text-muted);
}

.command-palette-kbd {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    padding: 0.15rem 0.4rem;
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: var(--font-heading);
}

.command-palette-results {
    list-style: none;
    margin: 0;
    padding: 0.5rem 0;
    max-height: 340px;
    overflow-y: auto;
}

.command-palette-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1rem;
    cursor: pointer;
    transition: background 0.15s ease;
}

.command-palette-item:hover,
.command-palette-item.selected {
    background: var(--bg-card);
}

.command-palette-item.selected {
    border-left: 2px solid var(--accent);
}

.command-palette-item-icon {
    color: var(--accent);
    width: 20px;
    text-align: center;
    font-size: 0.9rem;
}

.command-palette-item span:first-of-type {
    flex: 1;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 500;
}

.command-palette-item-url {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-family: var(--font-body);
}

.command-palette-empty {
    padding: 2rem 1rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

body.palette-open {
    overflow: hidden;
}

/* ── Text Utility ───────────────────────────────────────── */
.text-accent {
    color: var(--accent) !important;
}

/* ── Dropdown Dark ──────────────────────────────────────── */
.dropdown-menu-dark {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
}

.dropdown-menu-dark .dropdown-item {
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
}

.dropdown-menu-dark .dropdown-item:hover {
    background: var(--bg-card);
    color: var(--accent);
}

.dropdown-menu-dark .dropdown-divider {
    border-color: var(--border-subtle);
}