/* ===== CSS Variables ===== */
:root {
    --primary-teal: #00a99d;
    --primary-teal-dark: #008b81;
    --primary-teal-light: #4fc3bb;
    --primary-cyan: #00bcd4;
    --accent-yellow: #ffc107;
    --accent-orange: #e8a033;
    --navy-dark: #1a2744;
    --navy: #2c3e50;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-600: #6c757d;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--navy);
    line-height: 1.6;
}

/* ===== Header ===== */
.header {
    background: var(--white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 55px;
    width: auto;
    object-fit: contain;
}

.logo-text h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-teal);
    line-height: 1.2;
}

.logo-text span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-orange);
}

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

.btn-portal {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--primary-cyan) 0%, #0097a7 100%);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 188, 212, 0.3);
}

.btn-portal:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 188, 212, 0.4);
    background: linear-gradient(135deg, #0097a7 0%, var(--primary-cyan) 100%);
}

.btn-portal svg {
    transition: transform 0.3s ease;
}

.btn-portal:hover svg {
    transform: rotate(15deg);
}

.btn-login {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-teal-dark) 100%);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 169, 157, 0.3);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 169, 157, 0.4);
    background: linear-gradient(135deg, var(--primary-teal-dark) 0%, var(--primary-teal) 100%);
}

.btn-login svg {
    transition: transform 0.3s ease;
}

.btn-login:hover svg {
    transform: translateX(3px);
}

/* ===== Main Content ===== */
.main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero {
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-teal-light) 0%, var(--primary-teal) 100%);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 169, 157, 0.25);
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--navy-dark);
    margin-bottom: 2rem;
    line-height: 1.2;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    max-width: 900px;
    margin: 0 auto 3rem;
}

.description-card {
    background: var(--white);
    padding: 2rem 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    text-align: left;
    border: 1px solid rgba(0, 169, 157, 0.1);
    transition: var(--transition);
}

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

.card-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-cyan) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.description-card p {
    font-size: 1.1rem;
    color: var(--gray-600);
    line-height: 1.8;
}

.description-card strong {
    color: var(--primary-teal-dark);
}

/* ===== Features ===== */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--white);
    padding: 1.75rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-teal-light);
}

.feature-icon {
    width: 65px;
    height: 65px;
    background: linear-gradient(135deg, rgba(0, 169, 157, 0.1) 0%, rgba(0, 188, 212, 0.1) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--primary-teal);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-cyan) 100%);
    color: var(--white);
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--navy-dark);
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===== Decorative Elements ===== */
.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

.circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.circle-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-cyan) 100%);
    top: -150px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.circle-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-yellow) 100%);
    bottom: -100px;
    left: -100px;
    animation: float 10s ease-in-out infinite reverse;
}

.circle-3 {
    width: 200px;
    height: 200px;
    background: var(--primary-teal);
    top: 50%;
    left: 10%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

/* ===== Footer ===== */
.footer {
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-teal-dark) 100%);
    color: var(--white);
    padding: 1.5rem 2rem;
    text-align: center;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .header-container {
        padding: 0.75rem 1rem;
    }

    .logo {
        height: 45px;
    }

    .logo-text h1 {
        font-size: 1rem;
    }

    .logo-text span {
        font-size: 0.75rem;
    }

    .nav {
        gap: 0.5rem;
    }

    .btn-portal,
    .btn-login {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }

    .btn-portal svg,
    .btn-login svg {
        width: 18px;
        height: 18px;
    }

    .main {
        padding: 2rem 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .description-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 1.5rem;
    }

    .description-card p {
        font-size: 1rem;
    }

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

    .circle-1 {
        width: 250px;
        height: 250px;
    }

    .circle-2 {
        width: 200px;
        height: 200px;
    }

    .circle-3 {
        width: 120px;
        height: 120px;
    }
}

@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.8rem;
        padding: 0.4rem 1rem;
    }

    .hero-title {
        font-size: 1.6rem;
    }

    .card-icon {
        width: 50px;
        height: 50px;
    }

    .card-icon svg {
        width: 24px;
        height: 24px;
    }

    .feature-card {
        padding: 1.25rem;
    }

    .feature-icon {
        width: 55px;
        height: 55px;
    }
}

/* ===== Hamburger Menu ===== */
.hamburger-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--navy-dark);
    transition: all 0.3s ease;
}

.hamburger-btn:hover {
    color: var(--primary-teal);
}

.hamburger-btn svg {
    width: 28px;
    height: 28px;
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Mobile Nav Menu */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    background: var(--white);
    z-index: 9999;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
    transition: right 0.3s ease;
    padding: 1.5rem;
    overflow-y: auto;
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-200);
}

.mobile-nav-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--navy-dark);
}

.mobile-nav-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--gray-600);
    transition: all 0.3s ease;
}

.mobile-nav-close:hover {
    color: var(--primary-teal);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.mobile-nav-links a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.mobile-nav-links .btn-beranda {
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
    color: var(--white);
}

.mobile-nav-links .btn-portal {
    background: linear-gradient(135deg, var(--primary-cyan) 0%, #0097a7 100%);
    color: var(--white);
}

.mobile-nav-links .btn-login {
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-teal-dark) 100%);
    color: var(--white);
}

.mobile-nav-links a:hover {
    transform: translateX(5px);
}

@media (max-width: 600px) {
    .nav {
        display: none;
    }

    .hamburger-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .mobile-nav-overlay,
    .mobile-nav {
        display: block;
    }
}