/* ==========================================================================
   CYBERSHIELD - PREMIUM CYBERSECURITY SAAS TEMPLATE

   Design Philosophy:
   - Dark-first with dramatic gradients (dark blue → purple → cyan)
   - Glowing security elements and pulsing animations
   - Professional, trustworthy, cutting-edge aesthetic
   - Inspired by Pulse template quality standards
   ========================================================================== */

/* ==========================================================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ========================================================================== */

:root {
    /* Color Palette - Dark Cybersecurity Theme */
    --color-primary: #06b6d4;        /* Cyan - main accent */
    --color-primary-dark: #0891b2;
    --color-primary-light: #22d3ee;

    --color-secondary: #8b5cf6;      /* Purple - secondary accent */
    --color-secondary-dark: #7c3aed;
    --color-secondary-light: #a78bfa;

    --color-accent: #0ea5e9;         /* Sky blue - highlights */
    --color-success: #10b981;        /* Green - safe/secure */
    --color-warning: #f59e0b;        /* Amber - warnings */
    --color-danger: #ef4444;         /* Red - threats */

    /* Dark mode first - Neutral scale */
    --color-bg-primary: #0a0a0f;     /* Deep dark */
    --color-bg-secondary: #111117;   /* Card backgrounds */
    --color-bg-tertiary: #1a1a24;    /* Elevated surfaces */

    --color-text-primary: #ffffff;
    --color-text-secondary: #a1a1aa;
    --color-text-tertiary: #71717a;

    --color-border: #27272a;
    --color-border-light: #3f3f46;

    /* Typography Scale */
    --text-hero: clamp(3rem, 8vw, 6rem);      /* 48-96px */
    --text-display: clamp(2.5rem, 6vw, 5rem); /* 40-80px */
    --text-h1: clamp(2rem, 4vw, 3.5rem);      /* 32-56px */
    --text-h2: clamp(1.75rem, 3vw, 2.5rem);   /* 28-40px */
    --text-h3: clamp(1.25rem, 2vw, 1.75rem);  /* 20-28px */
    --text-h4: 1.125rem;                      /* 18px */
    --text-body: 1rem;                        /* 16px */
    --text-small: 0.875rem;                   /* 14px */
    --text-xs: 0.75rem;                       /* 12px */

    /* Spacing Scale (8px base) */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */
    --space-24: 6rem;     /* 96px */
    --space-32: 8rem;     /* 128px */

    /* Border Radius */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-2xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;

    /* Shadows with Glow Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.8);

    /* Cybersecurity Glows */
    --glow-cyan: 0 0 40px rgba(6, 182, 212, 0.4);
    --glow-cyan-strong: 0 0 60px rgba(6, 182, 212, 0.6);
    --glow-purple: 0 0 40px rgba(139, 92, 246, 0.4);
    --glow-danger: 0 0 40px rgba(239, 68, 68, 0.4);
    --glow-success: 0 0 40px rgba(16, 185, 129, 0.4);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 600ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Light mode overrides (optional, but supported) */
[data-theme="light"],
html:not(.dark) {
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-tertiary: #f3f4f6;

    --color-text-primary: #09090b;
    --color-text-secondary: #52525b;
    --color-text-tertiary: #71717a;

    --color-border: #e4e4e7;
    --color-border-light: #d4d4d8;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

*, *::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: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: var(--text-body);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
h4 { font-size: var(--text-h4); }

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

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

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

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

/* ==========================================================================
   LAYOUT UTILITIES
   ========================================================================== */

.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.section {
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
}

.section-lg {
    padding-top: var(--space-32);
    padding-bottom: var(--space-32);
}

/* ==========================================================================
   GRADIENT BACKGROUNDS
   ========================================================================== */

.gradient-bg {
    background: linear-gradient(135deg,
        #0a0a0f 0%,
        #1a1a2e 25%,
        #0f172a 50%,
        #1e1b4b 75%,
        #1a1a2e 100%
    );
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
}

.gradient-mesh {
    position: relative;
    background: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 100%);
}

.gradient-mesh::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(6, 182, 212, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 70%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    animation: mesh-float 20s ease-in-out infinite;
    pointer-events: none;
}

.grid-pattern {
    background-image:
        linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: none;
    gap: var(--space-8);
    list-style: none;
}

.nav-links li a {
    color: var(--color-text-secondary);
    font-size: var(--text-small);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

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

.nav-links li a:hover::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: var(--space-2);
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }

    .mobile-menu-toggle {
        display: none;
    }
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: var(--text-small);
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: white;
    box-shadow: var(--glow-cyan);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-cyan-strong);
}

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

.btn-secondary:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-primary);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--text-body);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 72px;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--text-small);
    color: var(--color-primary-light);
    margin-bottom: var(--space-6);
}

.hero-title {
    font-size: var(--text-hero);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    background: linear-gradient(135deg, #ffffff 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-12);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-16);
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: var(--text-display);
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.stat-label {
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
    margin-top: 0.5rem;
}

/* ==========================================================================
   SECURITY ANIMATIONS
   ========================================================================== */

/* Pulsing Shield */
.pulse-shield {
    position: relative;
    display: inline-block;
}

.pulse-shield::before,
.pulse-shield::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    animation: pulse-ring 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.pulse-shield::after {
    animation-delay: 1s;
}

/* Scanning Line */
.scan-line {
    position: relative;
    overflow: hidden;
}

.scan-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(6, 182, 212, 0.3) 50%,
        transparent 100%
    );
    animation: scan 3s linear infinite;
}

/* Threat Counter */
.threat-counter {
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum";
}

/* Shield Icon Animation */
.shield-icon {
    animation: shield-pulse 3s ease-in-out infinite;
}

@keyframes shield-pulse {
    0%, 100% {
        filter: drop-shadow(0 0 10px rgba(6, 182, 212, 0.5));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(6, 182, 212, 0.8));
    }
}

/* Lock Animation */
.lock-secure {
    animation: lock-bounce 2s ease-in-out infinite;
}

@keyframes lock-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* ==========================================================================
   FEATURE CARDS
   ========================================================================== */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
}

.feature-card {
    padding: var(--space-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--color-primary) 50%,
        transparent 100%
    );
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--glow-cyan);
}

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

.feature-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
    box-shadow: var(--glow-cyan);
}

.feature-icon svg {
    width: 1.5rem;
    height: 1.5rem;
    color: white;
}

.feature-title {
    font-size: var(--text-h3);
    margin-bottom: var(--space-3);
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ==========================================================================
   PRICING CARDS
   ========================================================================== */

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-12);
}

.pricing-card {
    padding: var(--space-8);
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-2xl);
    position: relative;
    transition: all var(--transition-base);
}

.pricing-card.featured {
    border-color: var(--color-primary);
    box-shadow: var(--glow-cyan);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    letter-spacing: 0.05em;
}

.pricing-name {
    font-size: var(--text-h4);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.pricing-price {
    font-size: var(--text-display);
    font-weight: 800;
    margin-bottom: var(--space-2);
}

.pricing-price span {
    font-size: var(--text-body);
    font-weight: 400;
    color: var(--color-text-tertiary);
}

.pricing-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--space-8);
}

.pricing-features li {
    padding: 0.75rem 0;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-success);
    flex-shrink: 0;
    margin-top: 2px;
}

/* ==========================================================================
   COMPLIANCE BADGES
   ========================================================================== */

.compliance-badges {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.badge {
    padding: 1rem 1.5rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: var(--text-small);
    font-weight: 600;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-base);
}

.badge:hover {
    border-color: var(--color-primary);
    box-shadow: var(--glow-cyan);
}

.badge svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-success);
}

/* ==========================================================================
   TESTIMONIALS
   ========================================================================== */

.testimonial-card {
    padding: var(--space-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-xl);
}

.testimonial-content {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.author-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.author-info h4 {
    font-size: var(--text-body);
    margin-bottom: 0.25rem;
}

.author-info p {
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
    margin: 0;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
    padding: var(--space-20) 0 var(--space-8);
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-brand {
    grid-column: 1 / -1;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-4);
}

.footer-description {
    max-width: 400px;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.footer-social {
    display: flex;
    gap: var(--space-4);
}

.social-link {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-lg);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-link:hover {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: white;
}

.footer-column h4 {
    font-size: var(--text-small);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-3);
}

.footer-links a {
    color: var(--color-text-secondary);
    font-size: var(--text-small);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-copyright {
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
}

.footer-legal {
    display: flex;
    gap: var(--space-6);
}

.footer-legal a {
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
}

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS
   ========================================================================== */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ==========================================================================
   KEYFRAME ANIMATIONS
   ========================================================================== */

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

@keyframes mesh-float {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(2%, -2%); }
    50% { transform: translate(-1%, 3%); }
    75% { transform: translate(-2%, -1%); }
}

@keyframes pulse-ring {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.8;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

@keyframes scan {
    0% { left: -100%; }
    100% { left: 100%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes glow-pulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
    }
    50% {
        box-shadow: 0 0 40px rgba(6, 182, 212, 0.6);
    }
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }

.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }

/* ==========================================================================
   ACCESSIBILITY
   ========================================================================== */

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

.sr-only:focus {
    position: static;
    width: auto;
    height: auto;
    padding: 0.5rem 1rem;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal, .reveal-left, .reveal-right, .reveal-scale {
        opacity: 1;
        transform: none;
    }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (min-width: 640px) {
    .footer-brand {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
    }

    .pricing-card.featured {
        transform: none;
    }
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
    .navbar,
    .footer,
    .btn {
        display: none;
    }
}

/* ==========================================================================
   CUSTOM SCROLLBAR
   ========================================================================== */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-light);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ==========================================================================
   SELECTION
   ========================================================================== */

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

::-moz-selection {
    background: var(--color-primary);
    color: white;
}