/* ========================================
   백제소프트웨어 (BaekjeSoftware) Homepage
   Design System & Styles
   ======================================== */

/* --- CSS Variables --- */
:root {
    --color-primary: #1a3a5c;
    --color-primary-light: #2c5f8a;
    --color-primary-dark: #0f2440;
    --color-accent: #d4a853;
    --color-accent-light: #e8c878;
    --color-accent-dark: #b08930;
    --color-bg: #fafbfc;
    --color-bg-alt: #f0f2f5;
    --color-bg-dark: #1a2332;
    --color-surface: #ffffff;
    --color-text: #2d3748;
    --color-text-light: #718096;
    --color-text-lighter: #a0aec0;
    --color-border: #e2e8f0;
    --color-border-light: #edf2f7;
    --color-success: #38a169;
    --color-error: #e53e3e;

    --font-sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Noto Serif KR', Georgia, serif;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::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: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    font-size: 16px;
}

img { max-width: 100%; height: auto; }
a { color: var(--color-primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 15px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255,255,255,0.5);
}
.btn-outline:hover {
    background: #fff;
    color: var(--color-primary);
    border-color: #fff;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 17px;
}

.btn-block {
    width: 100%;
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    transition: box-shadow var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

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

.nav-logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
}

.logo-sub {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-light);
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-link {
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background: var(--color-bg-alt);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* --- Sections --- */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-accent-dark);
    background: linear-gradient(135deg, rgba(212,168,83,0.1), rgba(212,168,83,0.05));
    padding: 4px 14px;
    border-radius: 20px;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary-dark);
    line-height: 1.3;
    margin-bottom: 12px;
}

.section-desc {
    font-size: 16px;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(212,168,83,0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(44,95,138,0.3) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
    padding-top: 72px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 52px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-highlight {
    background: linear-gradient(135deg, #fff 30%, var(--color-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255,255,255,0.85);
    margin-bottom: 36px;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Cards --- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition);
}

.card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(26,58,92,0.08), rgba(26,58,92,0.03));
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.card-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: 10px;
}

.card-desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}

.card-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    transition: color var(--transition);
}

.card-link:hover {
    color: var(--color-accent-dark);
}

/* --- About Preview --- */
.about-preview {
    background: var(--color-bg-alt);
}

.about-preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-preview-content .section-title {
    text-align: left;
}

.about-text {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-preview-content .btn {
    margin-top: 16px;
}

.visual-block {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 16px;
}

.visual-stat {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 8px;
}

.stat-number {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-light);
    background: var(--color-bg-alt);
    padding: 2px 10px;
    border-radius: 20px;
}

.visual-desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* --- CTA Section --- */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.cta-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 28px;
    line-height: 1.7;
}

/* --- Page Hero (sub-pages) --- */
.page-hero {
    padding: 140px 0 60px;
    text-align: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: #fff;
}

.page-title {
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-desc {
    font-size: 17px;
    color: rgba(255,255,255,0.8);
    line-height: 1.7;
}

/* --- Services Page --- */
.service-detail {
    padding: 80px 0;
}

.service-detail.alt {
    background: var(--color-bg-alt);
}

.service-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.service-grid.reverse .service-content {
    order: 2;
}
.service-grid.reverse .service-visual {
    order: 1;
}

.service-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.badge-code {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-accent-dark);
    background: linear-gradient(135deg, rgba(212,168,83,0.15), rgba(212,168,83,0.05));
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.badge-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(26,58,92,0.08);
    padding: 4px 12px;
    border-radius: 20px;
}

.service-title {
    font-family: var(--font-serif);
    font-size: 26px;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 12px;
    line-height: 1.3;
}

.service-desc {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 28px;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.feature-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(26,58,92,0.08), rgba(26,58,92,0.03));
    border-radius: var(--radius-sm);
}

.feature-icon svg {
    width: 18px;
    height: 18px;
    color: var(--color-primary);
}

.feature h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: 4px;
}

.feature p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Visual Cards */
.visual-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: 24px;
}

.visual-card.dark {
    background: var(--color-bg-dark);
    border-color: rgba(255,255,255,0.1);
}

/* Code Display */
.code-display {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.code-header {
    background: rgba(255,255,255,0.05);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28c840; }

.code-title {
    font-size: 12px;
    color: rgba(255,255,255,0.5);
    margin-left: 8px;
}

.code-body {
    padding: 20px;
    margin: 0;
    overflow-x: auto;
}

.code-body code {
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 13px;
    color: #e2e8f0;
    line-height: 1.6;
}

/* Hardware Display */
.hardware-display {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.hw-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.hw-item:hover {
    background: rgba(26,58,92,0.06);
}

.hw-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hw-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.hw-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary-dark);
}

/* Integration Flow */
.integration-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 0;
}

.flow-node {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.9);
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    text-align: center;
}

.flow-arrow {
    color: var(--color-accent);
    font-size: 20px;
}

/* Webapp Mockup */
.webapp-mockup {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
}

.mockup-bar {
    background: var(--color-bg-alt);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid var(--color-border-light);
}

.mockup-bar .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-text-lighter);
}

.mockup-url {
    font-size: 12px;
    color: var(--color-text-light);
    margin-left: 10px;
    background: #fff;
    padding: 3px 12px;
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.mockup-body {
    padding: 40px;
    text-align: center;
}

.mockup-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.mockup-logo {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
}

.mockup-line {
    width: 80%;
    height: 10px;
    background: var(--color-bg-alt);
    border-radius: 4px;
}

.mockup-line.short {
    width: 50%;
}

.mockup-btn {
    background: var(--color-primary);
    color: #fff;
    padding: 8px 24px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    margin-top: 8px;
}

/* --- About Page --- */
.about-detail {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-text {
    font-size: 16px;
    color: var(--color-text);
    line-height: 1.9;
    margin-bottom: 16px;
}

.about-text strong {
    color: var(--color-primary);
}

.about-side {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.info-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: 24px;
}

.info-card-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-lighter);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.info-card-value {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.info-card-sub {
    font-size: 13px;
    color: var(--color-text-light);
    margin-top: 4px;
    letter-spacing: 0.5px;
}

/* Biz Table */
.biz-section {
    background: var(--color-bg-alt);
}

.biz-table-wrapper {
    overflow-x: auto;
}

.biz-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
}

.biz-table thead {
    background: var(--color-primary);
    color: #fff;
}

.biz-table th {
    padding: 14px 20px;
    font-size: 14px;
    font-weight: 600;
    text-align: left;
}

.biz-table td {
    padding: 14px 20px;
    font-size: 14px;
    border-bottom: 1px solid var(--color-border-light);
}

.biz-table tbody tr:last-child td {
    border-bottom: none;
}

.biz-table tbody tr:hover {
    background: var(--color-bg-alt);
}

.biz-table .main-biz {
    background: rgba(212,168,83,0.06);
}

.biz-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 20px;
}

.biz-badge.main {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: #fff;
}

.biz-badge.sub {
    background: rgba(26,58,92,0.08);
    color: var(--color-primary);
}

/* Values */
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.value-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: all var(--transition);
}

.value-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.value-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(26,58,92,0.08), rgba(26,58,92,0.03));
    border-radius: 50%;
    margin: 0 auto 20px;
}

.value-icon svg {
    width: 26px;
    height: 26px;
    color: var(--color-primary);
}

.value-title {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 10px;
}

.value-desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Mission */
.mission-section {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: #fff;
}

.mission-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.mission-section .section-tag {
    background: rgba(212,168,83,0.2);
    color: var(--color-accent-light);
}

.mission-section .section-title {
    color: #fff;
}

.mission-text {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
    margin-bottom: 16px;
}

.mission-quote {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-xl);
    padding: 40px;
    position: relative;
}

.quote-mark {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
    opacity: 0.6;
    margin-bottom: 16px;
}

.mission-quote p {
    font-family: var(--font-serif);
    font-size: 20px;
    line-height: 1.6;
    color: rgba(255,255,255,0.95);
}

/* --- Contact Page --- */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: start;
}

.contact-form-title {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
}

.contact-form-desc {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}

.required {
    color: var(--color-error);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26,58,92,0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-info-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 20px;
}

.contact-info-card h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 4px;
}

.contact-info-sub {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 24px;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.contact-info-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.contact-info-item svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-info-item strong {
    display: block;
    font-size: 13px;
    color: var(--color-text-lighter);
    font-weight: 600;
    margin-bottom: 2px;
}

.contact-info-item span {
    font-size: 15px;
    color: var(--color-text);
}

.contact-hours-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.contact-hours-card h3 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 16px;
}

.hours-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.hours-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.hours-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-accent-dark);
    letter-spacing: 0.5px;
}

.hours-value {
    font-size: 13px;
    color: var(--color-text);
}

/* --- Footer --- */
.footer {
    background: var(--color-bg-dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 16px;
}

.footer-logo .logo-text {
    color: #fff;
}

.footer-logo .logo-sub {
    color: rgba(255,255,255,0.5);
}

.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,0.5);
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
}

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

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
    transition: color var(--transition);
}

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

.footer-contact h4 {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
}

.footer-contact p {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
    line-height: 1.7;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.35);
}

/* --- Responsive --- */
@media (max-width: 968px) {
    .about-preview-grid,
    .about-grid,
    .service-grid,
    .mission-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .service-grid.reverse .service-content,
    .service-grid.reverse .service-visual {
        order: unset;
    }

    .values-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .page-title {
        font-size: 32px;
    }

    .hero-title {
        font-size: 38px;
    }
}

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

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-surface);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--color-border-light);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .section {
        padding: 56px 0;
    }

    .hero {
        min-height: 85vh;
    }

    .hero-title {
        font-size: 30px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .section-title {
        font-size: 26px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 26px;
    }

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

    .biz-table {
        font-size: 12px;
    }

    .biz-table th,
    .biz-table td {
        padding: 10px 12px;
    }
}