@import 'variables.css';

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

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

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

ul {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-prairie);
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}

/* Mongol Ornament Decoration Class */
.mongol-pattern-border {
    position: relative;
}
.mongol-pattern-border::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 20px;
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='20' viewBox='0 0 40 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 20 C10 20 10 0 20 0 C30 0 30 20 40 20' stroke='%231E5F74' fill='none' stroke-width='2'/%3E%3C/svg%3E");
    background-repeat: repeat-x;
    opacity: 0.3;
}

/* Header & Nav */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    border-bottom: 3px solid var(--primary);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary);
    display: flex;
    align-items: center;
}

.logo span {
    color: var(--secondary);
    margin-left: 5px;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
    padding: var(--spacing-sm) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: width 0.3s;
}

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

/* Dropdown */
.nav-item {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    box-shadow: var(--shadow-md);
    border-top: 2px solid var(--secondary);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    border-radius: 0 0 4px 4px;
    padding: var(--spacing-sm) 0;
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    top: 100%;
}

.dropdown-item a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
}

.dropdown-item a:hover {
    background: var(--bg-sky);
    color: var(--primary);
}

/* Hero Section */
.hero-prairie {
    height: 100vh;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    margin-top: 80px; /* Header offset */
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: var(--primary) url('../images/city_night_view_10.png') no-repeat center center/cover;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(30, 95, 116, 0.6) 0%, rgba(76, 175, 80, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: var(--spacing-md);
    animation: fadeInUp 1s ease-out;
}

.tagline-mongol {
    font-family: var(--font-family-mongol);
    font-size: 2rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: var(--spacing-sm);
    writing-mode: horizontal-tb; /* Simplified for web compatibility */
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-title .sub {
    display: block;
    font-size: 1.5rem;
    font-weight: 300;
    margin-top: var(--spacing-sm);
    color: var(--secondary);
}

.hero-desc {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.btn-prairie {
    background: var(--secondary);
    color: white;
}

.btn-prairie:hover {
    background: #e0961f;
    transform: translateY(-2px);
}

.btn-outline-light {
    border-color: white;
    color: white;
    margin-left: var(--spacing-md);
}

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

/* Cloud Pattern Border */
.cloud-pattern-border {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40px;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='30' viewBox='0 0 60 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 30 Q15 0 30 30 T60 30' fill='%23E8F4F8' fill-opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat-x;
    background-size: 60px 30px;
}

/* Capabilities Dashboard */
.section-dashboard {
    padding: var(--spacing-xxl) 0;
    background-color: var(--bg-sky);
}

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

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.capability-card {
    background: white;
    border-radius: 8px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--primary);
    transition: var(--transition-base);
}

.capability-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--secondary);
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.card-icon {
    font-size: 2rem;
    margin-right: var(--spacing-md);
    color: var(--primary);
}

.card-metrics {
    background: var(--bg-sky);
    padding: var(--spacing-sm);
    border-radius: 4px;
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: space-between;
}

.metric .value {
    display: block;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--accent);
}

.metric .label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.link-arrow {
    display: inline-block;
    margin-top: var(--spacing-md);
    color: var(--primary);
    font-weight: 600;
}

.link-arrow:hover {
    color: var(--secondary);
}

/* About Section */
.section-about {
    padding: var(--spacing-xxl) 0;
    background-color: white;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.image-block {
    position: relative;
}

.image-block img {
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

.mongol-ornament {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 60px;
    height: 60px;
    border-top: 4px solid var(--secondary);
    border-left: 4px solid var(--secondary);
    z-index: 1;
}

.text-block .est-year {
    font-family: monospace;
    color: var(--secondary);
    font-weight: bold;
    letter-spacing: 2px;
}

.highlight-list {
    margin: var(--spacing-lg) 0;
}

.highlight-list li {
    margin-bottom: var(--spacing-sm);
    padding-left: 25px;
    position: relative;
}

.highlight-list li::before {
    content: '◈';
    position: absolute;
    left: 0;
    color: var(--accent);
}

.btn-prairie-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 10px 25px;
    border-radius: 4px;
    display: inline-block;
    font-weight: 600;
}

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

/* Cases Map Section */
.section-cases {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    position: relative;
}

.cases-map-container {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.map-visual {
    flex: 1;
    min-width: 300px;
    background: white;
    padding: var(--spacing-md);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: center;
    align-items: center;
}

.case-list-horizontal {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.case-item {
    background: white;
    padding: var(--spacing-md);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--accent);
}

.case-item h4 {
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

/* Shared Section Heading */
.section-heading {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-heading span {
    display: inline-block;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.section-heading h2 {
    margin: var(--spacing-sm) 0;
    font-size: clamp(2rem, 4vw, 2.8rem);
}

.section-heading p {
    max-width: 700px;
    margin: 0 auto;
    color: var(--text-secondary);
}

.section-padding {
    padding: var(--spacing-xxl) 0;
}

.page-hero {
    padding: calc(var(--spacing-xxl) + 40px) 0 var(--spacing-xl);
    background: linear-gradient(135deg, rgba(30,95,116,0.9), rgba(76,175,80,0.8)), url('../images/city_night_view_10.png') center/cover;
    color: #fff;
    text-align: center;
    margin-top: 80px;
}

.page-hero p {
    max-width: 720px;
    margin: var(--spacing-md) auto 0;
    color: rgba(255,255,255,0.85);
}

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

.stat-block {
    background: white;
    border-radius: 14px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.stat-block span {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary);
}

.content-card {
    background: #fff;
    border-radius: 14px;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0,0,0,0.04);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag-list span {
    padding: 6px 16px;
    border-radius: 999px;
    background: var(--bg-sky);
    color: var(--primary);
    font-size: 0.85rem;
}

.timeline {
    border-left: 3px solid var(--primary);
    padding-left: var(--spacing-lg);
    display: grid;
    gap: var(--spacing-md);
}

.timeline-item h4 {
    margin: 0;
    color: var(--primary);
}

.pill-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    background: rgba(30,95,116,0.08);
    color: var(--primary);
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.news-board {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.news-card {
    background: #fff;
    border-radius: 12px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0,0,0,0.04);
}

/* Solutions Section */
.section-solutions {
    padding: var(--spacing-xxl) 0;
    background: #fff;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
}

.solution-card {
    background: white;
    border-radius: 12px;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0,0,0,0.04);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.solution-card ul {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--text-secondary);
}

/* Metrics */
.section-metrics {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-grass);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
}

.metric-card {
    background: white;
    border-radius: 16px;
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.metric-value {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--secondary);
    display: block;
}

.metric-label {
    color: var(--text-secondary);
}

/* Process */
.section-process {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, #edf4ff 0%, #fefefe 100%);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
}

.process-step {
    background: white;
    border-radius: 14px;
    padding: var(--spacing-lg);
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
    box-shadow: var(--shadow-sm);
}

.process-step .step-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

/* Insights */
.section-insights {
    padding: var(--spacing-xxl) 0;
    background: #fff;
}

.insights-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
    gap: var(--spacing-xl);
}

.news-stream article {
    background: #f9fbfd;
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(0,0,0,0.04);
}

.news-tag {
    font-size: 0.78rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--secondary);
}

.news-stream h3 {
    margin: var(--spacing-sm) 0;
}

.insight-panel {
    background: var(--bg-sky);
    border-radius: 14px;
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.resource-card {
    background: white;
    border-radius: 10px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    margin-top: var(--spacing-sm);
}

/* Trust Section */
.section-trust {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-sky);
}

.trust-logos {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.trust-logos span {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: white;
    border-radius: 999px;
    font-size: 0.95rem;
    box-shadow: var(--shadow-sm);
}

.trust-cta {
    text-align: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 16px;
    color: #fff;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

/* Footer */
.footer {
    background-color: #1a262b;
    color: #b2bec3;
    padding: var(--spacing-xl) 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: 10px;
}

.footer h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--secondary);
}

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

.footer a:hover {
    color: var(--secondary);
}

.footer-bottom {
    background-color: #121b1f;
    padding: var(--spacing-md) 0;
    text-align: center;
    font-size: 0.9rem;
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-xxl { margin-bottom: var(--spacing-xxl); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-xxl { margin-top: var(--spacing-xxl); }
.hidden-mobile { display: block; }

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

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

.btn-primary:hover {
    background: var(--secondary);
    transform: translateY(-2px);
}

.btn-secondary {
    border-color: var(--primary);
    color: var(--primary);
}

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

.btn-lg {
    padding: 14px 36px;
    font-size: 1.05rem;
}

@media (max-width: 768px) {
    .hero-title { font-size: 2rem; }
    .about-grid { grid-template-columns: 1fr; }
    .nav-menu { display: none; }
    .cases-map-container { flex-direction: column; }
    .insights-grid { grid-template-columns: 1fr; }
}

@media (max-width: 1024px) {
    .grid-md-1 {
        grid-template-columns: 1fr !important;
    }
    .grid-md-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }
}

@media (max-width: 600px) {
    .grid-md-2 {
        grid-template-columns: 1fr !important;
    }
}

/* Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}