/* Reset and Base Styles */
:root {
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-gradient: linear-gradient(135deg, #2563eb, #3b82f6);
    --text-main: #334155;
    --text-muted: #64748b;
    --bg-main: #ffffff;
    --bg-light: #f8fafc;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-main);
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--primary);
    line-height: 1.3;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.2rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background-color: var(--accent);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
}

.btn-gradient {
    background: var(--accent-gradient);
    color: white;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.btn-outline {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.btn-outline:hover {
    background: white;
    color: var(--primary);
}

.full-width {
    width: 100%;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.2rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 0.8rem 0;
    box-shadow: var(--shadow-sm);
}

.navbar.scrolled .logo,
.navbar.scrolled .nav-links a {
    color: var(--primary);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
}

.logo .highlight {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--accent);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-image: url('hero_bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.6) 50%, rgba(15, 23, 42, 0.3) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: white;
    max-width: 800px;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(37, 99, 235, 0.2);
    border: 1px solid rgba(37, 99, 235, 0.5);
    color: #93c5fd;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(4px);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: white;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* Section Common */
.section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
}

.section-title span {
    color: var(--text-muted);
    font-size: 1.5rem;
    font-weight: 500;
}

.section-desc {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 4rem;
    font-size: 1.1rem;
}

.bg-light {
    background-color: var(--bg-light);
}

/* Timeline */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--border);
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    position: relative;
    margin-bottom: 2rem;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 50%;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 3rem;
    margin-right: 0;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 3rem;
    margin-left: 0;
    text-align: right;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--bg-main);
    border: 4px solid var(--accent);
    z-index: 2;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.timeline-content {
    background: var(--bg-main);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 350px;
    position: relative;
    transition: transform 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.timeline-date {
    color: var(--accent);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.timeline-text {
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary);
}

/* Cards */
.price-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.price-image-wrapper {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.feature-image {
    width: 100%;
    height: 100%;
    min-height: 400px;
    object-fit: cover;
    display: block;
}

.card-wrapper .card-grid {
    grid-template-columns: 1fr;
}

.card-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.info-card {
    background: var(--bg-main);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}

.info-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.border-accent {
    border-top: 4px solid var(--accent);
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #fafafa;
}

.tag {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--accent);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
}

.tag-blue {
    background-color: #e0f2fe;
    color: #0284c7;
}

.card-body {
    padding: 2rem 1.5rem;
}

.info-list li {
    display: flex;
    justify-content: space-between;
    padding: 1rem 0;
    border-bottom: 1px dashed var(--border);
}

.info-list li:last-child {
    border-bottom: none;
}

.info-list strong {
    color: var(--text-muted);
}

.info-list span {
    font-weight: 700;
    color: var(--primary);
    font-size: 1.1rem;
}

.table-responsive {
    overflow-x: auto;
}

.price-table {
    width: 100%;
    border-collapse: collapse;
}

.price-table th, .price-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.price-table th {
    font-weight: 600;
    color: var(--text-muted);
    background-color: #fafafa;
}

.price-table td strong {
    color: var(--accent);
}

.md-recommendation {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px dashed var(--border);
}

.md-title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.md-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.md-list li {
    font-size: 0.95rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.md-floor {
    background: var(--primary-light);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.md-alert {
    background-color: #eff6ff;
    border-left: 4px solid var(--accent);
    padding: 1rem;
    border-radius: 0 8px 8px 0;
    font-size: 0.95rem;
    color: #1e40af;
}

.md-alert strong {
    color: #1e3a8a;
    font-weight: 700;
}

/* LOI Section */
.loi-wrapper {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
    align-items: center;
}

.loi-highlight {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
}

.loi-desc {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.loi-desc strong {
    color: var(--accent);
    background: linear-gradient(to top, rgba(37,99,235,0.2) 40%, transparent 40%);
}

.docs-box {
    background-color: var(--bg-light);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.docs-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.docs-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.docs-list li {
    position: relative;
    padding-left: 1.5rem;
    font-weight: 500;
}

.docs-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.contact-box {
    background: var(--primary);
    color: white;
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.contact-box span {
    display: block;
    color: #94a3b8;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.phone-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
    letter-spacing: -0.05em;
}

.contact-box p {
    color: #cbd5e1;
    margin-bottom: 2rem;
}

/* Form Styles */
.loi-form {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    margin-top: 1rem;
    border: 1px solid var(--border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    font-size: 0.95rem;
}

.form-group .required {
    color: #ef4444;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 400;
    font-size: 0.875rem;
    cursor: pointer;
}

.checkbox-group input {
    width: auto;
}

.form-notice {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 1rem;
    text-align: center;
}

/* Location Section */
.location-section {
    background-color: var(--bg-light);
}

.map-container {
    width: 100%;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.map-container iframe {
    display: block;
    width: 100%;
}

.location-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.info-item h4 {
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.info-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background-color: #0f172a;
    color: #94a3b8;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
}

.footer-info {
    text-align: right;
}

.footer-info p {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 992px) {
    .price-layout {
        grid-template-columns: 1fr;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
    .loi-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    .location-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-actions {
        flex-direction: column;
    }
    .nav-links {
        display: none; /* simple mobile */
    }
    .timeline::before {
        left: 20px;
    }
    .timeline-item {
        justify-content: flex-start;
        padding-right: 0;
        padding-left: 50px;
    }
    .timeline-item:nth-child(even) {
        padding-left: 50px;
    }
    .timeline-item:nth-child(even) .timeline-content,
    .timeline-item:nth-child(odd) .timeline-content {
        margin: 0;
        text-align: left;
    }
    .timeline-dot {
        left: 20px;
    }
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
    .footer-info {
        text-align: center;
    }
}