/* 인테리어 웹사이트 - 프리미엄 스타일 */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700;900&family=Playfair+Display:wght@700;900&display=swap');

/* CSS Variables - Design System */
:root {
    /* Colors */
    --primary: #2c3e50;
    --primary-dark: #1a252f;
    --accent: #e67e22;
    --accent-light: #f39c12;
    --accent-gradient: linear-gradient(135deg, #e67e22 0%, #f39c12 100%);
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #ecf0f1;
    --white: #ffffff;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.15);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-display: 'Playfair Display', serif;
    --font-body: 'Noto Sans KR', sans-serif;
    
    /* Effects */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-elevation: 0 10px 40px var(--shadow);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.18);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.5rem); }

p {
    margin-bottom: var(--spacing-sm);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Section */
section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a252f 0%, #2c3e50 50%, #34495e 100%);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(230, 126, 34, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(243, 156, 18, 0.1) 0%, transparent 50%);
    animation: pulseGlow 8s ease-in-out infinite;
}

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

.hero-content {
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

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

.hero h1 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-md);
    font-weight: 300;
}

.hero-badge {
    display: inline-block;
    background: var(--accent-gradient);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 5px 20px rgba(230, 126, 34, 0.4);
    animation: bounce 2s infinite;
}

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

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--white);
    box-shadow: 0 5px 20px rgba(230, 126, 34, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(230, 126, 34, 0.5);
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--primary-dark);
    border: 2px solid var(--glass-border);
}

.btn-secondary:hover {
    background: var(--white);
    transform: translateY(-3px);
}

/* Expertise Section */
.expertise {
    background: var(--bg-light);
}

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

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.2rem;
    margin-top: -var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.expertise-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 20px;
    box-shadow: var(--shadow-elevation);
    transition: var(--transition);
    text-align: center;
}

.expertise-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px var(--shadow-lg);
}

.expertise-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
}

.expertise-card h3 {
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.expertise-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Quote Form Section */
.quote-form-section {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: var(--white);
}

.quote-form-section .section-title,
.quote-form-section .section-subtitle {
    color: var(--white);
}

.quote-form {
    max-width: 700px;
    margin: 0 auto;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    padding: var(--spacing-lg);
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
    color: var(--primary-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid transparent;
    border-radius: 15px;
    font-size: 1rem;
    font-family: var(--font-body);
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

/* Contact Section */
.contact {
    background: var(--bg-light);
    text-align: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.contact-card {
    background: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 20px;
    box-shadow: var(--shadow-elevation);
    min-width: 300px;
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent);
}

.contact-name {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.contact-phone {
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent);
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
}

.contact-phone:hover {
    transform: scale(1.05);
    color: var(--accent-light);
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.gallery-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 1/1;
    background: var(--bg-light);
    box-shadow: var(--shadow-elevation);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: scale(1.03);
    box-shadow: 0 20px 50px var(--shadow-lg);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.gallery-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-light) 0%, #d5dbdb 100%);
    font-size: 3rem;
    color: var(--text-light);
}

/* Footer */
footer {
    background: var(--primary-dark);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-md);
}

footer p {
    margin: 0;
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .hero {
        min-height: 90vh;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .quote-form {
        padding: var(--spacing-md);
    }
}

/* Animations */
.fade-in {
    animation: fadeIn 1s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Scroll Animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}