/* ==========================================
   Design Tokens & CSS Variables
   ========================================== */
:root {
    /* Colors - Fresh Minimal Palette (White, Cream, Light Green) */
    --color-white: #FFFFFF;
    --color-cream: #FDFDF8;
    --color-warm-beige: #F0F5E8;
    --color-light-brown: #A8C686;
    --color-brown: #6B8E4E;
    --color-dark-brown: #3D5A2B;
    --color-text: #4A4A4A;
    --color-text-light: #7A7A7A;

    /* Gradients */
    --gradient-warm: linear-gradient(135deg, #A8C686 0%, #6B8E4E 100%);
    --gradient-soft: linear-gradient(135deg, #FDFDF8 0%, #F0F5E8 100%);

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(61, 90, 43, 0.08);
    --shadow-md: 0 4px 20px rgba(61, 90, 43, 0.12);
    --shadow-lg: 0 8px 40px rgba(61, 90, 43, 0.15);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}


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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--color-dark-brown);
    line-height: 1.3;
}

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

img {
    max-width: 100%;
    height: auto;
}

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

/* ==========================================
   Navbar
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-dark-brown);
}

.logo-icon {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    color: var(--color-text);
}

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

.btn-nav {
    background: var(--gradient-warm);
    color: var(--color-white) !important;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
}

.btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--color-dark-brown);
    transition: var(--transition-fast);
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-brown);
    border: 2px solid var(--color-light-brown);
}

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.2rem;
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    padding: 120px var(--spacing-md) var(--spacing-2xl);
    overflow: hidden;
}

.hero-wave-top {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 0;
}

.hero-wave-top svg {
    display: block;
    width: 100%;
    height: 200px;
}

.hero-wave-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 0;
}

.hero-wave-bottom svg {
    display: block;
    width: 100%;
    height: 150px;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.gradient-text {
    background: var(--gradient-warm);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-brown);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* ==========================================
   Section Styles
   ========================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-tag {
    display: inline-block;
    background: var(--color-warm-beige);
    color: var(--color-brown);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================
   Markets Section
   ========================================== */
.markets {
    padding: var(--spacing-2xl) 0;
    background: var(--color-cream);
}

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

.market-card {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    overflow: hidden;
}

.market-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-warm);
    opacity: 0;
    transition: var(--transition-normal);
}

.market-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.market-card:hover::before {
    opacity: 1;
}

.market-card.featured {
    background: linear-gradient(145deg, var(--color-warm-beige) 0%, var(--color-white) 100%);
    border: 2px solid var(--color-light-brown);
}

.featured-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--gradient-warm);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.us-icon {
    background: linear-gradient(135deg, #E8F4FD 0%, #D1E9FA 100%);
}

.thai-icon {
    background: linear-gradient(135deg, #FDF4E8 0%, #FAE8D1 100%);
}

.gold-icon {
    background: linear-gradient(135deg, #FDF8E8 0%, #FAF0D1 100%);
}

.sp-icon {
    background: linear-gradient(135deg, #F0E8FD 0%, #E4D1FA 100%);
}

.market-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
}

.market-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.card-stats {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    border-top: 1px solid var(--color-warm-beige);
}

.mini-stat {
    display: flex;
    flex-direction: column;
}

.mini-value {
    font-weight: 700;
    color: var(--color-brown);
}

.mini-label {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.card-link {
    color: var(--color-brown);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.card-link:hover {
    color: var(--color-dark-brown);
    transform: translateX(4px);
}

/* ==========================================
   Features Section
   ========================================== */
.features {
    position: relative;
    padding: var(--spacing-2xl) 0;
    background: var(--gradient-soft);
}

.features-wave {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
}

.features-wave svg {
    display: block;
    width: 100%;
    height: 80px;
}

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

.feature-item {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-item h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark-brown);
}

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

/* ==========================================
   Insights Section
   ========================================== */
.insights {
    padding: var(--spacing-2xl) 0;
    background: var(--color-white);
}

.insights-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.insight-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    cursor: pointer;
}

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

.insight-card.large {
    grid-row: span 2;
}

.insight-image {
    height: 200px;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    padding: var(--spacing-md);
}

.insight-card.large .insight-image {
    height: 300px;
}

.insight-category {
    background: rgba(255, 255, 255, 0.9);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-dark-brown);
}

.insight-content {
    padding: var(--spacing-md);
}

.insight-content h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.insight-card.large .insight-content h3 {
    font-size: 1.4rem;
}

.insight-content p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.insight-meta {
    display: flex;
    gap: var(--spacing-xs);
    color: var(--color-text-light);
    font-size: 0.8rem;
}

/* ==========================================
   CTA Section
   ========================================== */
.cta {
    position: relative;
    padding: var(--spacing-2xl) 0;
    background: var(--gradient-warm);
}

.cta-wave {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
}

.cta-wave svg {
    display: block;
    width: 100%;
    height: 80px;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding-top: var(--spacing-xl);
}

.cta h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

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

.form-group {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 500px;
    margin: 0 auto;
}

.form-group input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    outline: none;
}

.form-group input:focus {
    box-shadow: var(--shadow-md);
}

.form-group .btn {
    white-space: nowrap;
    background: var(--color-dark-brown);
}

.form-group .btn:hover {
    background: var(--color-brown);
}

.cta-note {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background: var(--color-dark-brown);
    color: var(--color-white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand .logo {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-links h5 {
    color: var(--color-white);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

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

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    font-size: 1.3rem;
    opacity: 0.7;
    transition: var(--transition-fast);
}

.social-links a:hover {
    opacity: 1;
    transform: translateY(-2px);
}

/* ==========================================
   Animations
   ========================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in:nth-child(1) {
    animation-delay: 0.1s;
}

.fade-in:nth-child(2) {
    animation-delay: 0.2s;
}

.fade-in:nth-child(3) {
    animation-delay: 0.3s;
}

.fade-in:nth-child(4) {
    animation-delay: 0.4s;
}

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

.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.6s ease;
}

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

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .insight-card.large {
        grid-row: auto;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        box-shadow: var(--shadow-md);
        transform: translateY(-120%);
        opacity: 0;
        transition: var(--transition-normal);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }

    .hero-stats {
        gap: var(--spacing-lg);
    }

    .form-group {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .market-card {
        padding: var(--spacing-lg);
    }
}