* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body, html {
    margin: 0;
    padding: 0;
    font-family: 'DM Sans', sans-serif;
    color: #333;
    background-color: #fdfdfd;
    scroll-behavior: smooth;
    overflow-x: hidden;
    max-width: 100%;
}

/* Accessibility: Skip to Content */
.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: #1e293b;
    color: #ffffff !important;
    padding: 10px 18px;
    border-radius: 8px;
    z-index: 99999;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: top 0.2s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
}
.skip-link:focus {
    top: 16px;
}

/* Focus Visible for Keyboard Accessibility (WCAG 2.4.7) */
:focus-visible {
    outline: 2px solid #6366f1;
    outline-offset: 2px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: max(14px, env(safe-area-inset-top)) max(clamp(16px, 3.5vw, 40px), env(safe-area-inset-right)) 14px max(clamp(16px, 3.5vw, 40px), env(safe-area-inset-left));
    background-color: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    box-sizing: border-box;
}

.navbar .logo {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    font-weight: 700;
    color: #1e293b; 
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    text-decoration: none;
}

.logo-img {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}

.navbar nav {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.navbar nav a {
    text-decoration: none;
    color: #64748b;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.navbar nav a:hover {
    color: #0ea5e9; 
}

/* Theme Toggle Button (WCAG 2.5.5 / 2.5.8 compliant touch target) */
.theme-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    transition: background-color 0.2s, color 0.2s, transform 0.2s;
    padding: 0;
    margin: 0;
    flex-shrink: 0;
}
.theme-btn:hover {
    background-color: rgba(0, 0, 0, 0.06);
}
.theme-btn:active {
    transform: scale(0.95);
}

.nav-btn {
    background-color: #1e293b; 
    color: #ffffff !important;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 600;
    transition: transform 0.2s, background-color 0.2s, box-shadow 0.2s;
    font-size: 0.9rem;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    text-decoration: none;
    flex-shrink: 0;
}
.nav-btn:hover {
    background-color: #334155;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.nav-btn-text-short {
    display: none;
}

.hero {
    min-height: calc(85vh - 75px);
    min-height: calc(85dvh - 70px);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(rgba(15, 23, 42, 0.52), rgba(15, 23, 42, 0.62)), url('hero_bg.jpg?v=20') no-repeat center 30% / cover;
    color: #ffffff;
    padding: clamp(70px, 10vh, 120px) 20px;
    position: relative;
    overflow: hidden;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 24px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    cursor: default;
}

.hero-badge:hover {
    transform: translateY(-2px);
    background-color: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.hero-content {
    max-width: 820px;
    width: 100%;
}

.hero h1 {
    font-size: clamp(2.1rem, 4.8vw, 3.4rem);
    margin-bottom: 18px;
    line-height: 1.25;
    color: #ffffff;
    font-weight: 800;
    text-shadow: 0 2px 14px rgba(0, 0, 0, 0.5);
    letter-spacing: -0.5px;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    margin-bottom: 32px;
    line-height: 1.6;
    color: #f8fafc;
    max-width: 660px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
}

.btn-primary {
    display: inline-block;
    padding: 13px 36px;
    font-size: clamp(0.95rem, 1.8vw, 1.05rem);
    font-weight: 600;
    letter-spacing: 0.3px;
    text-decoration: none;
    color: #ffffff !important; 
    background: #6366f1;
    background: linear-gradient(135deg, #6c76fe 0%, #5464f5 100%);
    border-radius: 9999px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 18px rgba(100, 110, 250, 0.45);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5b65f0 0%, #4655e8 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(100, 110, 250, 0.65);
    color: #ffffff !important;
}

.features {
    padding: clamp(50px, 8vw, 90px) clamp(20px, 4vw, 50px);
    text-align: center;
}

.features h2 {
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    margin-bottom: clamp(30px, 5vw, 50px);
    color: #1e293b; 
    font-weight: 700;
}

.cards {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    max-width: 1050px;
    margin: 0 auto;
}

.card {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-top: 4px solid #1e293b;
    border-radius: 14px;
    padding: 32px 24px;
    flex: 1 1 280px;
    max-width: 340px;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    text-align: left;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
    border-color: #cbd5e1;
}

.card-1, .card-2, .card-3 { 
    border-top: 4px solid #1e293b; 
}

.card-1 h3, .card-2 h3, .card-3 h3 { 
    color: #1e293b; 
} 

.icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    color: #1e293b;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.card h3 {
    margin-top: 0;
    margin-bottom: 12px;
    font-size: 1.25rem;
    font-weight: 700;
}

.card p {
    color: #64748b;
    line-height: 1.6;
    margin: 0;
    font-size: 0.95rem;
}

/* CTA BANNER (SETELAH PENJELASAN) */
.cta-banner-section {
    padding: 20px clamp(20px, 4vw, 50px) clamp(50px, 8vw, 80px);
    max-width: 1050px;
    margin: 0 auto;
}

.cta-banner {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border-radius: 24px;
    padding: clamp(40px, 6vw, 60px) clamp(24px, 5vw, 50px);
    text-align: center;
    color: #ffffff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 16px 36px -10px rgba(15, 23, 42, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-banner:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 48px -10px rgba(15, 23, 42, 0.35);
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.04) 0%, transparent 60%);
    pointer-events: none;
}

.cta-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.cta-banner h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin: 0 0 16px 0;
    color: #ffffff;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.cta-banner p {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: #cbd5e1;
    max-width: 650px;
    margin: 0 auto 32px auto;
    line-height: 1.6;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background-color: #ffffff;
    color: #0f172a;
    padding: 16px 36px;
    border-radius: 50px;
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.cta-btn:hover {
    background-color: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.25);
    color: #0f172a;
}

.cta-btn-arrow {
    transition: transform 0.2s ease;
    font-size: 1.2rem;
}

.cta-btn:hover .cta-btn-arrow {
    transform: translateX(5px);
}

.team-section {
    padding: clamp(50px, 8vw, 90px) clamp(20px, 4vw, 50px);
    text-align: center;
    background-color: #f7f9f8;
}

.team-section h2 {
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    margin-bottom: 12px;
    color: #1e293b; 
    font-weight: 700;
}

.section-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.15rem);
    color: #64748b;
    max-width: 700px;
    margin: 0 auto clamp(30px, 5vw, 50px) auto;
    line-height: 1.6;
}

.team-cards {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    max-width: 900px;
    margin: 0 auto;
}

.team-card {
    background-color: #ffffff;
    border-radius: 14px;
    padding: 32px 24px;
    flex: 1 1 250px;
    max-width: 280px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.04);
    text-align: center;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.team-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
}

.team-photo, .team-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 16px auto;
    object-fit: cover;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.team-placeholder {
    background-color: #97A9B9;
    color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.2rem;
    font-weight: 700;
}

.team-card h3 {
    margin: 0;
    font-size: 1.15rem;
    color: #333333;
    font-weight: 700;
}

.team-role {
    font-size: 0.95rem;
    color: #64748b;
    margin-top: 8px;
    font-weight: 500;
}

.footer {
    background-color: #ffffff;
    border-top: 1px solid #f1f5f9;
    padding: 60px 20px 20px 20px;
}

.footer-content {
    max-width: 1050px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-brand {
    flex: 1 1 300px;
}

.footer-brand .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #333333;
    margin-bottom: 16px;
}

.footer-brand p {
    color: #64748b;
    line-height: 1.6;
    font-size: 0.95rem;
    max-width: 320px;
    margin: 0;
}

.footer-links, .footer-info {
    flex: 1 1 200px;
}

.footer h4 {
    color: #1e293b;
    font-size: 1.1rem;
    margin-top: 0;
    margin-bottom: 16px;
    font-weight: 700;
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #64748b;
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: #0ea5e9;
}

.footer-info p {
    color: #64748b;
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0;
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid #f1f5f9;
    color: #94a3b8;
    font-size: 0.9rem;
}

@media (max-width: 520px) {
    .navbar {
        padding: max(10px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) 10px max(12px, env(safe-area-inset-left));
    }
    .navbar nav a:not(.nav-btn) {
        display: none;
    }
    .navbar .logo {
        font-size: 1.15rem;
        gap: 8px;
    }
    .logo-img {
        width: 34px;
        height: 34px;
        border-radius: 6px;
    }
    .navbar nav {
        gap: 6px;
    }
    .theme-btn {
        min-width: 40px;
        min-height: 40px;
        width: 40px;
        height: 40px;
    }
    .nav-btn {
        padding: 8px 12px;
        font-size: 0.82rem;
        min-height: 40px;
        border-radius: 6px;
    }
    .hero {
        padding: clamp(45px, 7vh, 85px) 16px;
        min-height: calc(85dvh - 65px);
    }
    .hero h1 {
        font-size: clamp(1.65rem, 6vw, 2.35rem);
        line-height: 1.25;
        margin-bottom: 14px;
    }
    .hero p {
        font-size: clamp(0.92rem, 2.8vw, 1.05rem);
        line-height: 1.55;
        margin-bottom: 22px;
    }
    .btn-primary {
        padding: 12px 28px;
        font-size: 0.95rem;
    }
    .card {
        max-width: 100%;
    }
}

@media (max-width: 380px) {
    .navbar .logo span {
        font-size: 1.05rem;
    }
    .nav-btn-text-full {
        display: none;
    }
    .nav-btn-text-short {
        display: inline;
    }
    .nav-btn {
        padding: 8px 10px;
        font-size: 0.8rem;
    }
}

/* === DARK MODE === */
body.dark-mode {
    background-color: #0f172a;
    color: #f8fafc;
}
body.dark-mode .navbar {
    background-color: rgba(15, 23, 42, 0.85);
    border-bottom-color: #1e293b;
}
body.dark-mode .navbar .logo span, body.dark-mode .theme-btn {
    color: #f8fafc;
}
body.dark-mode .navbar nav a {
    color: #cbd5e1;
    font-weight: 600;
    transition: color 0.2s ease;
}
body.dark-mode .navbar nav a:hover {
    color: #ffffff;
}
body.dark-mode .nav-btn {
    background-color: #ffffff;
    color: #0f172a !important;
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 10px rgba(255, 255, 255, 0.1);
}
body.dark-mode .nav-btn:hover { 
    background-color: #f1f5f9;
    color: #0f172a !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}
body.dark-mode .btn-primary {
    background: #6366f1;
    background: linear-gradient(135deg, #6c76fe 0%, #5464f5 100%);
    color: #ffffff !important;
    border: none;
    box-shadow: 0 4px 20px rgba(100, 110, 250, 0.5);
}
body.dark-mode .btn-primary:hover {
    background: linear-gradient(135deg, #5b65f0 0%, #4655e8 100%);
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(100, 110, 250, 0.7);
}
body.dark-mode .hero h1, body.dark-mode .hero p, body.dark-mode .features h2, body.dark-mode .team-section h2, body.dark-mode .team-section p {
    color: #f8fafc;
}
body.dark-mode .card, body.dark-mode .team-card {
    background-color: #1e293b;
    border: 1px solid #334155;
    border-top-width: 5px;
    color: #f8fafc;
}
body.dark-mode .card h3, body.dark-mode .team-card h3 { color: #f8fafc; }
body.dark-mode .card p, body.dark-mode .team-card p { color: #cbd5e1; }
body.dark-mode .icon {
    background-color: rgba(14, 165, 233, 0.2);
    color: #38bdf8;
}
body.dark-mode .footer {
    background-color: #0b1120;
    border-top-color: #1e293b;
}
body.dark-mode .footer-info p, body.dark-mode .footer-links a, body.dark-mode .footer-bottom p {
    color: #cbd5e1;
}
body.dark-mode .footer h4, body.dark-mode .footer-brand span {
    color: #f8fafc;
}
body.dark-mode .card-1,
body.dark-mode .card-2,
body.dark-mode .card-3 { 
    border-top-color: #38bdf8; 
}
body.dark-mode .team-section {
    background-color: #080c17;
}
body.dark-mode .navbar nav a:hover {
    color: #38bdf8;
}
/* Accessibility Focus */
a:focus-visible, button:focus-visible {
    outline: 2px solid #38bdf8;
    outline-offset: 3px;
}
body.dark-mode .footer-links a:hover {
    color: #38bdf8;
}
.card-1 .icon, .card-2 .icon, .card-3 .icon { 
    background-color: #f8fafc; 
    border: 1px solid #e2e8f0;
    color: #1e293b; 
}
body.dark-mode .card-1 .icon,
body.dark-mode .card-2 .icon,
body.dark-mode .card-3 .icon { 
    background-color: rgba(14, 165, 233, 0.2); 
    border-color: #334155;
    color: #38bdf8; 
}
body.dark-mode .logo-img {
    filter: brightness(0) invert(1);
}

/* Dark Mode Hero Overlay */
body.dark-mode .hero {
    background: linear-gradient(rgba(10, 15, 29, 0.65), rgba(10, 15, 29, 0.75)), url('hero_bg.jpg?v=20') no-repeat center 30% / cover;
    color: #ffffff;
}

body.dark-mode .hero-badge {
    background-color: rgba(30, 41, 59, 0.7);
    border-color: #334155;
    color: #f8fafc;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

body.dark-mode .hero-badge:hover {
    background-color: #1e293b;
    border-color: #475569;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
}

body.dark-mode .cta-banner {
    background: linear-gradient(135deg, #1e293b 0%, #090d16 100%);
    border: 1px solid #334155;
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
}

body.dark-mode .cta-banner:hover {
    border-color: #475569;
    box-shadow: 0 25px 50px -15px rgba(0, 0, 0, 0.9);
}

body.dark-mode .cta-banner::before {
    background: radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.08) 0%, transparent 60%);
}

body.dark-mode .cta-badge {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    color: #f8fafc;
}

/* Dark Mode Showcase Overrides */
body.dark-mode .showcase-card {
    background-color: #1e293b;
    border-color: #334155;
    box-shadow: 0 20px 45px -15px rgba(0, 0, 0, 0.7);
}

body.dark-mode .showcase-card:hover {
    border-color: #475569;
    box-shadow: 0 25px 55px -15px rgba(0, 0, 0, 0.85);
}

body.dark-mode .showcase-bar {
    background-color: #1e293b;
    border-top-color: #334155;
}

body.dark-mode .showcase-tag {
    color: #f8fafc;
}

body.dark-mode .showcase-desc {
    color: #cbd5e1;
}