/* ===== Variables ===== */
:root {
    --color-primary: #0d6b5c;
    --color-primary-dark: #094a40;
    --color-primary-light: #12a892;
    --color-accent: #e8a838;
    --color-accent-soft: #fef3dc;
    --color-bg: #faf9f7;
    --color-bg-alt: #f0ede8;
    --color-surface: #ffffff;
    --color-text: #1a1f1e;
    --color-text-muted: #5c6563;
    --color-border: #e2ded8;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'DM Sans', system-ui, sans-serif;
    --shadow-sm: 0 1px 3px rgba(26, 31, 30, 0.06);
    --shadow-md: 0 4px 20px rgba(26, 31, 30, 0.08);
    --shadow-lg: 0 12px 40px rgba(26, 31, 30, 0.12);
    --radius: 12px;
    --radius-lg: 20px;
    --header-height: 72px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-primary-light); }

.hidden { display: none !important; }

.container {
    width: min(1120px, 92vw);
    margin-inline: auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 999px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
}

.btn-sm { padding: 0.5rem 1.125rem; font-size: 0.875rem; }
.btn-lg { padding: 1rem 2rem; font-size: 1rem; }

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-accent);
    color: var(--color-text);
    border-color: var(--color-accent);
}
.btn-secondary:hover {
    background: #d4952a;
    border-color: #d4952a;
    color: var(--color-text);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn-ghost:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(13, 107, 92, 0.04);
}

.btn-outline-light {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    color: #fff;
}

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(250, 249, 247, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--color-text);
    text-decoration: none;
    flex-shrink: 0;
}
.logo:hover { color: var(--color-text); }
.logo-icon { color: var(--color-primary); font-size: 1.25rem; }
.logo-accent { color: var(--color-primary); }

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}
.nav-links a {
    color: var(--color-text-muted);
    font-weight: 500;
    font-size: 0.9375rem;
}
.nav-links a:hover { color: var(--color-primary); }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.nav-greeting {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: 0.3s;
}

/* ===== Hero ===== */
.hero {
    padding: calc(var(--header-height) + 4rem) 0 5rem;
    background: linear-gradient(165deg, var(--color-primary-dark) 0%, var(--color-primary) 45%, #0f8570 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(232, 168, 56, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 85% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
}

.hero-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    margin-bottom: 1.25rem;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.25rem;
}

.hero h1 em {
    font-style: normal;
    color: var(--color-accent);
}

.hero-desc {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 32rem;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.hero-stat strong {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.hero-stat span {
    font-size: 0.8125rem;
    opacity: 0.75;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.hero-visual {
    position: relative;
}

.hero-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.hero-card-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.hero-goal-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.hero-goal-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
    font-size: 0.9375rem;
    line-height: 1.5;
}

.goal-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background: rgba(232, 168, 56, 0.25);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

/* ===== Stats Section ===== */
.stats-section {
    margin-top: -3rem;
    position: relative;
    z-index: 2;
    padding-bottom: 4rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.stat-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.5rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 1px solid var(--color-border);
    transition: transform 0.3s ease;
}

.stat-card:hover { transform: translateY(-4px); }

.stat-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    background: var(--color-accent-soft);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.375rem;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    font-variant-numeric: tabular-nums;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ===== Section Common ===== */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 3rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-header p {
    color: var(--color-text-muted);
    font-size: 1.0625rem;
}

/* ===== Mission ===== */
.mission-section {
    background: var(--color-surface);
}

.mission-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.mission-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    margin-bottom: 1.25rem;
    line-height: 1.25;
}

.mission-content p {
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    font-size: 1.0625rem;
}

.mission-pillars {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.pillar-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: border-color 0.25s, box-shadow 0.25s;
}

.pillar-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-sm);
}

.pillar-icon {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.pillar-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
}

.pillar-card p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ===== Achievements ===== */
.achievements-section {
    background: var(--color-bg-alt);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.achievement-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.achievement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.achievement-year {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.achievement-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 0.625rem;
    line-height: 1.3;
}

.achievement-card p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.achievement-metric {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--color-border);
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1.125rem;
}

/* ===== CTA / Join ===== */
.cta-section {
    padding: 5rem 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    border-radius: var(--radius-lg);
    padding: 4rem 3rem;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 90% 10%, rgba(232, 168, 56, 0.2) 0%, transparent 50%);
}

.cta-box h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
    position: relative;
}

.cta-box p {
    font-size: 1.0625rem;
    opacity: 0.9;
    max-width: 520px;
    margin: 0 auto 2rem;
    position: relative;
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    position: relative;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--color-text);
    color: rgba(255, 255, 255, 0.75);
    padding: 4rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo { color: #fff; margin-bottom: 1rem; }
.footer-brand .logo-accent { color: var(--color-accent); }
.footer-tagline { font-size: 0.9375rem; margin-bottom: 0.5rem; }
.footer-domain a { color: var(--color-accent); }
.footer-domain a:hover { color: #fff; }

.footer-links h4 {
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 1rem;
}

.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 0.5rem; }
.footer-links a { color: rgba(255, 255, 255, 0.65); font-size: 0.9375rem; }
.footer-links a:hover { color: #fff; }

.footer-bottom {
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.45);
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
    .hero-grid,
    .mission-grid { grid-template-columns: 1fr; }
    .hero-visual { order: -1; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .achievements-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .mission-pillars { grid-template-columns: 1fr; }
}

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

    .nav-links {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-surface);
        padding: 1.5rem;
        gap: 0;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
    }

    .nav-links.open { display: flex; }
    .nav-links li { padding: 0.75rem 0; border-bottom: 1px solid var(--color-border); }
    .nav-links li:last-child { border-bottom: none; }

    .nav-actions .nav-greeting { display: none; }

    .hero { padding-bottom: 3rem; }
    .stats-section { margin-top: -2rem; }
    .stats-grid { grid-template-columns: 1fr; }
    .hero-stats { gap: 1.5rem; }
    .cta-box { padding: 2.5rem 1.5rem; }
    .footer-grid { grid-template-columns: 1fr; }
}

@media (min-width: 769px) {
    .nav-greeting { display: inline; }
}