/*
Theme Name: XPEL Korea
Theme URI: https://xpelkorea.com
Author: XPEL Korea
Author URI: https://xpelkorea.com
Description: Premium public-facing theme for XPEL Korea - featuring warranty lookup integration, modern Gutenberg blocks, and FSE support. Designed for automotive protection film products.
Version: 1.0.0
Requires at least: 6.4
Tested up to: 6.7
Requires PHP: 8.0
License: Proprietary
License URI: https://xpelkorea.com/license
Text Domain: xpel-korea
Tags: full-site-editing, block-patterns, custom-colors, custom-logo, translation-ready

XPEL Korea - 자동차 보호 필름 전문
Since 2011, XPEL Korea has been the exclusive distributor of XPEL products.
*/

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */
:root {
    /* XPEL Brand Colors */
    --xpel-black: #000000;
    --xpel-white: #FFFFFF;
    --xpel-gray-100: #F8F9FA;
    --xpel-gray-200: #E9ECEF;
    --xpel-gray-300: #DEE2E6;
    --xpel-gray-400: #CED4DA;
    --xpel-gray-500: #ADB5BD;
    --xpel-gray-600: #6C757D;
    --xpel-gray-700: #495057;
    --xpel-gray-800: #343A40;
    --xpel-gray-900: #212529;
    
    /* Accent Colors */
    --xpel-primary: #1a1a1a;
    --xpel-secondary: #333333;
    --xpel-accent: #FDB521;
    --xpel-accent-light: #D4BC8A;
    --xpel-accent-dark: #A68B4B;
    
    /* Status Colors */
    --xpel-success: #28A745;
    --xpel-warning: #FFC107;
    --xpel-error: #DC3545;
    --xpel-info: #17A2B8;
    
    /* Typography */
    --font-display: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --font-body: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --font-mono: 'SF Mono', 'Consolas', monospace;
    
    /* Font Sizes (Fluid Typography) */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
    --text-5xl: clamp(3rem, 2rem + 5vw, 5rem);
    --text-6xl: clamp(3.75rem, 2.5rem + 6.25vw, 6rem);
    
    /* Font Weights */
    --weight-light: 300;
    --weight-normal: 400;
    --weight-medium: 500;
    --weight-semibold: 600;
    --weight-bold: 700;
    --weight-extrabold: 800;
    
    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* Letter Spacing */
    --tracking-tighter: -0.05em;
    --tracking-tight: -0.025em;
    --tracking-normal: 0;
    --tracking-wide: 0.025em;
    --tracking-wider: 0.05em;
    --tracking-widest: 0.1em;
    
    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    --space-40: 10rem;
    --space-48: 12rem;
    --space-64: 16rem;
    
    /* Container Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1536px;
    
    /* Border Radius */
    --radius-none: 0;
    --radius-sm: 0.125rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-slower: 500ms ease;
    
    /* Z-Index Scale */
    --z-below: -1;
    --z-base: 0;
    --z-above: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-overlay: 400;
    --z-modal: 500;
    --z-tooltip: 600;
    
    /* Header Height */
    --header-height: 80px;
    --header-height-mobile: 60px;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --xpel-gray-100: #1a1a1a;
    --xpel-gray-200: #2d2d2d;
    --xpel-gray-300: #404040;
    --xpel-gray-400: #525252;
    --xpel-gray-500: #737373;
    --xpel-gray-600: #a3a3a3;
    --xpel-gray-700: #d4d4d4;
    --xpel-gray-800: #e5e5e5;
    --xpel-gray-900: #f5f5f5;
}

/* ==========================================================================
   CSS Reset & Base Styles
   ========================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--weight-normal);
    line-height: var(--leading-normal);
    color: var(--xpel-gray-900);
    background-color: var(--xpel-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: var(--weight-bold);
    line-height: var(--leading-tight);
    color: var(--xpel-gray-900);
    letter-spacing: var(--tracking-tight);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
    margin-bottom: var(--space-4);
}

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

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

strong, b {
    font-weight: var(--weight-semibold);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin-inline: auto;
    padding-inline: var(--space-4);
}

@media (min-width: 768px) {
    .container {
        padding-inline: var(--space-8);
    }
}

.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;
}

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Flexbox */
.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-4 { gap: var(--space-4); }
.gap-8 { gap: var(--space-8); }

/* Grid */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 768px) {
    .md\:grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
}

/* Spacing */
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.py-8 { padding-block: var(--space-8); }
.py-16 { padding-block: var(--space-16); }
.py-24 { padding-block: var(--space-24); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    line-height: var(--leading-normal);
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background-color: var(--xpel-black);
    color: var(--xpel-white);
    border-color: var(--xpel-black);
}

.btn-primary:hover {
    background-color: var(--xpel-gray-800);
    border-color: var(--xpel-gray-800);
    color: var(--xpel-white);
}

.btn-secondary {
    background-color: transparent;
    color: var(--xpel-black);
    border-color: var(--xpel-black);
}

.btn-secondary:hover {
    background-color: var(--xpel-black);
    color: var(--xpel-white);
}

.btn-accent {
    background-color: var(--xpel-accent);
    color: var(--xpel-black);
    border-color: var(--xpel-accent);
}

.btn-accent:hover {
    background-color: var(--xpel-accent-dark);
    border-color: var(--xpel-accent-dark);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
}

/* ==========================================================================
   Forms
   ========================================================================== */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--xpel-gray-700);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--xpel-gray-900);
    background-color: var(--xpel-white);
    border: 1px solid var(--xpel-gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-input::placeholder {
    color: var(--xpel-gray-500);
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
    background-color: var(--xpel-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card-image img {
    transform: scale(1.05);
}

.card-content {
    padding: var(--space-6);
}

.card-title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.card-text {
    color: var(--xpel-gray-600);
    font-size: var(--text-sm);
}

/* ==========================================================================
   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(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    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 spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Animation Classes */
.animate-fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

.animate-fade-in-up {
    animation: fadeInUp var(--transition-slow) ease-out;
}

.animate-fade-in-down {
    animation: fadeInDown var(--transition-slow) ease-out;
}

.animate-slide-in-left {
    animation: slideInLeft var(--transition-slow) ease-out;
}

.animate-slide-in-right {
    animation: slideInRight var(--transition-slow) ease-out;
}

.animate-scale-in {
    animation: scaleIn var(--transition-slow) ease-out;
}

/* Stagger Animation Delays */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* Intersection Observer Animation Triggers */
[data-animate] {
    opacity: 0;
}

[data-animate].is-visible {
    animation-fill-mode: both;
}

[data-animate="fade-in"].is-visible { animation: fadeIn 0.6s ease-out; }
[data-animate="fade-in-up"].is-visible { animation: fadeInUp 0.6s ease-out; }
[data-animate="fade-in-down"].is-visible { animation: fadeInDown 0.6s ease-out; }
[data-animate="slide-in-left"].is-visible { animation: slideInLeft 0.6s ease-out; }
[data-animate="slide-in-right"].is-visible { animation: slideInRight 0.6s ease-out; }
[data-animate="scale-in"].is-visible { animation: scaleIn 0.6s ease-out; }

/* ==========================================================================
   Loading States
   ========================================================================== */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 2px solid var(--xpel-gray-300);
    border-top-color: var(--xpel-black);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.skeleton {
    background: linear-gradient(90deg, var(--xpel-gray-200) 25%, var(--xpel-gray-100) 50%, var(--xpel-gray-200) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */
@media print {
    *,
    *::before,
    *::after {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    a,
    a:visited {
        text-decoration: underline;
    }
    
    img {
        max-width: 100% !important;
    }
    
    @page {
        margin: 2cm;
    }
    
    h2, h3 {
        page-break-after: avoid;
    }
}