/* ============================================
   VISINOVA - Award-Winning Dark Luxury Design System
   ============================================ */

/* ==================== CSS VARIABLES ==================== */
:root {
    /* Colors */
    --gold: #C9A962;
    --gold-light: #E8D5A8;
    --gold-dark: #A68B4B;
    --bg-primary: #0A0A0A;
    --bg-secondary: #0F0F0F;
    --bg-tertiary: #141414;
    --surface: rgba(20, 20, 20, 0.95);
    --surface-light: rgba(30, 30, 30, 0.9);

    /* Glass Effects */
    --glass: rgba(201, 169, 98, 0.03);
    --glass-border: rgba(201, 169, 98, 0.12);
    --glass-hover: rgba(201, 169, 98, 0.08);
    --glass-glow: rgba(201, 169, 98, 0.15);

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #9CA3AF;
    --text-muted: #6B7280;
    --text-accent: var(--gold);

    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Space Grotesk', -apple-system, sans-serif;
    --font-alt: 'Jost', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 0.15s;
    --duration-normal: 0.3s;
    --duration-slow: 0.5s;
    --duration-slower: 0.8s;

    /* Z-Index Scale */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 500;
    --z-fixed: 1000;
    --z-modal: 9999;
    --z-cursor: 99999;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--duration-normal) var(--ease-out);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ==================== TYPOGRAPHY ==================== */
.font-display {
    font-family: var(--font-display);
}

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

.gradient-text {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 50%, var(--gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Fluid Typography */
.text-hero {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 500;
    line-height: 1.05;
    letter-spacing: -0.02em;
}

.text-display {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.01em;
}

.text-heading {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 500;
    line-height: 1.15;
}

.text-subheading {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 500;
    line-height: 1.2;
}

.text-title {
    font-family: var(--font-body);
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    font-weight: 600;
    line-height: 1.3;
}

.text-body-lg {
    font-size: clamp(1.125rem, 1.5vw, 1.25rem);
    line-height: 1.7;
}

.text-body {
    font-size: 1rem;
    line-height: 1.7;
}

.text-small {
    font-size: 0.875rem;
    line-height: 1.6;
}

.text-caption {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 500;
}

/* ==================== LAYOUT UTILITIES ==================== */
.container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.container-sm {
    max-width: 800px;
}

.container-md {
    max-width: 1000px;
}

.container-lg {
    max-width: 1200px;
}

.section {
    position: relative;
    padding: var(--space-4xl) 0;
}

.section-sm {
    padding: var(--space-3xl) 0;
}

/* ==================== BACKGROUND EFFECTS ==================== */
.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(201, 169, 98, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201, 169, 98, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
}

.bg-noise {
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.015;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    width: 800px;
    height: 800px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(201, 169, 98, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    filter: blur(100px);
}

.bg-glow-1 {
    top: -400px;
    right: -400px;
    animation: float 25s ease-in-out infinite;
}

.bg-glow-2 {
    bottom: -400px;
    left: -400px;
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* Accent Shapes */
.accent-line {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, var(--gold), transparent);
}

.accent-dot {
    width: 8px;
    height: 8px;
    background: var(--gold);
    border-radius: 50%;
}

.accent-ring {
    width: 200px;
    height: 200px;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    position: absolute;
    pointer-events: none;
}

/* ==================== SCROLL PROGRESS ==================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--gold), var(--gold-light), var(--gold));
    z-index: var(--z-modal);
    transition: width 0.05s linear;
}

/* ==================== CUSTOM CURSOR ==================== */
.cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 1.5px solid var(--gold);
    border-radius: 50%;
    pointer-events: none;
    z-index: var(--z-cursor);
    transform: translate(-50%, -50%);
    transition:
        width var(--duration-normal) var(--ease-spring),
        height var(--duration-normal) var(--ease-spring),
        background var(--duration-normal) var(--ease-out),
        border-color var(--duration-normal) var(--ease-out);
    mix-blend-mode: difference;
}

.cursor-dot {
    position: fixed;
    width: 4px;
    height: 4px;
    background: var(--gold);
    border-radius: 50%;
    pointer-events: none;
    z-index: var(--z-cursor);
    transform: translate(-50%, -50%);
}

.cursor.hover {
    width: 60px;
    height: 60px;
    background: rgba(201, 169, 98, 0.1);
    border-color: transparent;
}

.cursor.click {
    transform: translate(-50%, -50%) scale(0.85);
}

@media (max-width: 1024px) {
    .cursor, .cursor-dot { display: none; }
}

/* ==================== NAVIGATION ==================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-md) 0;
    transition: all var(--duration-slow) var(--ease-out);
}

.nav.scrolled {
    padding: var(--space-sm) 0;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

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

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: transform var(--duration-normal) var(--ease-spring);
}

.nav-logo:hover {
    transform: scale(1.05);
}

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: var(--space-xs) 0;
    transition: color var(--duration-normal) var(--ease-out);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width var(--duration-normal) var(--ease-out);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-menu-btn {
    display: none;
    padding: var(--space-xs);
}

.nav-menu-btn svg {
    width: 28px;
    height: 28px;
    stroke: var(--gold);
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: var(--z-modal);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-slow) var(--ease-out);
}

.mobile-nav.open {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs);
    transition: transform var(--duration-normal) var(--ease-spring);
}

.mobile-nav-close:hover {
    transform: rotate(90deg);
}

.mobile-nav-close svg {
    width: 32px;
    height: 32px;
    stroke: var(--gold);
}

.mobile-nav-link {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--text-primary);
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--duration-slow) var(--ease-out);
}

.mobile-nav.open .mobile-nav-link {
    opacity: 1;
    transform: translateY(0);
}

.mobile-nav.open .mobile-nav-link:nth-child(2) { transition-delay: 0.1s; }
.mobile-nav.open .mobile-nav-link:nth-child(3) { transition-delay: 0.15s; }
.mobile-nav.open .mobile-nav-link:nth-child(4) { transition-delay: 0.2s; }
.mobile-nav.open .mobile-nav-link:nth-child(5) { transition-delay: 0.25s; }

.mobile-nav-link:hover {
    color: var(--gold);
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-menu-btn { display: block; }
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gold);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--gold-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(201, 169, 98, 0.3);
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    padding: var(--space-xs) 0;
}

.btn-ghost:hover {
    color: var(--gold);
}

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: 50%;
}

/* Button Ripple Effect */
.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:active::before {
    width: 400px;
    height: 400px;
}

/* ==================== CARDS ==================== */
.card {
    background: var(--surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    transition: all var(--duration-slow) var(--ease-out);
}

.card:hover {
    border-color: var(--glass-glow);
    transform: translateY(-8px);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 60px rgba(201, 169, 98, 0.05);
}

.card-glass {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
}

.card-glass:hover {
    background: var(--glass-hover);
    border-color: var(--glass-glow);
}

/* ==================== FORM ELEMENTS ==================== */
.form-group {
    position: relative;
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gold);
    margin-bottom: var(--space-xs);
    transition: color var(--duration-normal) var(--ease-out);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 1rem 1.25rem;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    background: rgba(10, 10, 10, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: all var(--duration-normal) var(--ease-out);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(201, 169, 98, 0.1);
}

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

.form-textarea {
    resize: none;
    min-height: 150px;
}

/* Floating Labels */
.form-floating {
    position: relative;
}

.form-floating .form-input,
.form-floating .form-textarea {
    padding-top: 1.5rem;
}

.form-floating .form-label {
    position: absolute;
    top: 50%;
    left: 1.25rem;
    transform: translateY(-50%);
    font-size: 1rem;
    text-transform: none;
    letter-spacing: normal;
    color: var(--text-muted);
    pointer-events: none;
    transition: all var(--duration-normal) var(--ease-out);
}

.form-floating .form-textarea ~ .form-label {
    top: 1.5rem;
    transform: none;
}

.form-floating .form-input:focus ~ .form-label,
.form-floating .form-input:not(:placeholder-shown) ~ .form-label,
.form-floating .form-textarea:focus ~ .form-label,
.form-floating .form-textarea:not(:placeholder-shown) ~ .form-label {
    top: 0.5rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gold);
}

/* ==================== BADGES & TAGS ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--gold);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
}

.badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--gold);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.tag {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gold);
    background: rgba(201, 169, 98, 0.1);
    border-radius: var(--radius-full);
}

/* ==================== DIVIDERS ==================== */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

.divider-vertical {
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, transparent, var(--glass-border), transparent);
}

/* ==================== REVEAL ANIMATIONS ==================== */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all var(--duration-slower) var(--ease-out);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
}

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

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
}

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

/* Stagger Delays */
.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; }

/* Text Split Animation */
.split-text .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
    transition: all 0.6s var(--ease-out);
}

.split-text.visible .char {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== FLOATING ELEMENTS ==================== */
.floating-whatsapp {
    position: fixed;
    bottom: 100px;
    right: 24px;
    z-index: var(--z-fixed);
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all var(--duration-normal) var(--ease-spring);
    animation: whatsappPulse 2s infinite;
}

.floating-whatsapp:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.floating-whatsapp svg {
    width: 28px;
    height: 28px;
    fill: #fff;
}

.floating-whatsapp .tooltip {
    position: absolute;
    right: 70px;
    background: #fff;
    color: #333;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-out);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.floating-whatsapp .tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: #fff;
}

.floating-whatsapp:hover .tooltip {
    opacity: 1;
    visibility: visible;
}

@keyframes whatsappPulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6), 0 0 0 10px rgba(37, 211, 102, 0.1); }
}

.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: var(--z-fixed);
    width: 48px;
    height: 48px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--duration-normal) var(--ease-out);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--gold);
    border-color: var(--gold);
    transform: translateY(-4px);
}

.back-to-top:hover svg {
    stroke: var(--bg-primary);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
    stroke: var(--gold);
    transition: stroke var(--duration-normal) var(--ease-out);
}

/* ==================== FOOTER ==================== */
.footer {
    position: relative;
    z-index: var(--z-base);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-xl) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-link {
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: all var(--duration-normal) var(--ease-out);
}

.footer-link:hover {
    color: var(--gold);
    transform: translateY(-2px);
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    :root {
        --space-4xl: 6rem;
        --space-3xl: 4rem;
    }
}

@media (max-width: 768px) {
    :root {
        --space-4xl: 4rem;
        --space-3xl: 3rem;
        --space-2xl: 2.5rem;
    }

    .container {
        padding: 0 var(--space-sm);
    }

    .floating-whatsapp {
        bottom: 80px;
        right: 16px;
        width: 50px;
        height: 50px;
    }

    .floating-whatsapp .tooltip {
        display: none;
    }

    .back-to-top {
        right: 16px;
        bottom: 16px;
        width: 44px;
        height: 44px;
    }
}

@media (max-width: 480px) {
    :root {
        --space-4xl: 3rem;
        --space-3xl: 2.5rem;
        --space-2xl: 2rem;
    }
}

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

.text-gold { color: var(--gold); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

.mb-0 { margin-bottom: 0; }
.mb-xs { margin-bottom: var(--space-xs); }
.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); }

.mt-auto { margin-top: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

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

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

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

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

.overflow-hidden { overflow: hidden; }
.pointer-events-none { pointer-events: none; }

.z-10 { z-index: 10; }
.z-20 { z-index: 20; }