* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", sans-serif;
}

body {
    background: #f9fafb;
}

/* CONTAINER */
.container {
    max-width: 1200px;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* HEADER */
.header {
    background: #fff;
    padding: 15px 20px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    position: sticky;
    top: 0;
    z-index: 999;
}

/* LOGO */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    width: 45px;
    height: 45px;
}

.logo span {
    font-size: 20px;
    font-weight: 800;
    color: #1e3a8a;
}

/* MENU */
.nav-menu {
    display: flex;
    gap: 28px;
}

.nav-menu a {
    text-decoration: none;
    color: #374151;
    font-weight: 500;
    position: relative;
    transition: 0.3s;
}

/* underline hover premium */
.nav-menu a::after {
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    background: #facc15;
    left: 0;
    bottom: -5px;
    transition: 0.3s;
}

.nav-menu a:hover {
    color: #1e3a8a;
}

.nav-menu a:hover::after {
    width: 100%;
}

/* ACTION */
.actions {
    display: flex;
    gap: 12px;
}

.btn {
    padding: 8px 18px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
    font-size: 14px;
}

/* LOGIN */
.btn-login {
    border: 1px solid #1e3a8a;
    color: #1e3a8a;
}

.btn-login:hover {
    background: #1e3a8a;
    color: #fff;
}

/* DAFTAR */
.btn-daftar {
    background: #facc15;
    color: #111;
}

.btn-daftar:hover {
    background: #eab308;
}

/* BURGER */
.burger {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* MOBILE MENU */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 270px;
    height: 100%;
    background: #fff;
    padding: 25px;
    transition: 0.3s;
    z-index: 1000;
}

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

.mobile-menu .close {
    font-size: 22px;
    cursor: pointer;
    margin-bottom: 20px;
}

.mobile-menu a {
    display: block;
    margin: 10px 0;
    color: #1e3a8a;
    text-decoration: none;
    font-weight: 600;
}

.mobile-actions {
    margin-top: 5px; /* SUPER dekat */
    padding-top: 8px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    flex-direction: column;
    gap: 6px; /* tombol makin rapat */
}

.mobile-actions .btn {
    width: 100%;
    text-align: center;
    margin: 0; /* pastikan tidak ada jarak tambahan */
}

/* OVERLAY */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav-menu,
    .actions {
        display: none;
    }

    .burger {
        display: block;
    }
}

/* HERO */
.hero {
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    padding: 80px 20px;
    color: #fff;
}

.hero-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

/* TEXT */
.hero-text {
    flex: 1;
}

.hero-text .badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 15px;
}

.hero-text h1 {
    font-size: 42px;
    line-height: 1.3;
    margin-bottom: 15px;
    font-weight: 800;
}

.hero-text h1 span {
    color: #facc15;
}

.hero-text p {
    font-size: 16px;
    color: #e5e7eb;
    margin-bottom: 25px;
    max-width: 500px;
}

/* BUTTON */
.hero-buttons {
    display: flex;
    gap: 12px;
}

/* IMAGE */
.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 500px;
    width: 100%;
    transform: scale(1.1);
    animation: float 4s ease-in-out infinite;
}

/* animasi halus */
@keyframes float {
    0%,
    100% {
        transform: translateY(0) scale(1.1);
    }
    50% {
        transform: translateY(-10px) scale(1.1);
    }
}

/* HERO BUTTON SECONDARY (JELAJAHI) */
.hero .btn-login {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: #fff;
    backdrop-filter: blur(6px);
}

.hero .btn-login:hover {
    background: #fff;
    color: #1e3a8a;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero-wrap {
        flex-direction: column;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 32px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image img {
        max-width: 90%; /* dari 250px → hampir full */
        width: 100%;
        margin-top: 20px;
    }
}

html {
    scroll-behavior: smooth;
}

/* BUTTON PRIMARY (CTA UTAMA) */
.btn-primary {
    background: linear-gradient(135deg, #facc15, #eab308);
    color: #111;
    font-weight: 700;
    padding: 12px 22px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(250, 204, 21, 0.4);
    transition: 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 15px 35px rgba(250, 204, 21, 0.6);
}

/* BUTTON SECONDARY */
.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 12px 22px;
    border-radius: 10px;
    backdrop-filter: blur(6px);
    transition: 0.3s;
}

.btn-secondary:hover {
    background: #fff;
    color: #1e3a8a;
}

/* HERO BUTTON WRAP */
.hero-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* TRUST BADGE */
.hero-trust {
    margin-top: 18px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    font-size: 14px;
    color: #e5e7eb;
}

.hero-trust span {
    background: rgba(255, 255, 255, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
}

@media (max-width: 768px) {
    .hero-buttons {
        justify-content: center;
    }

    .hero-trust {
        justify-content: center;
    }
}

/* WHY SECTION */
.why {
    padding: 80px 20px;
    background: #fff;
}

.why-wrap {
    flex-direction: column;
    text-align: center;
}

/* HEADER */
.why-header h2 {
    font-size: 32px;
    margin-bottom: 10px;
}

.why-header h2 span {
    color: #1e3a8a;
}

.why-header p {
    max-width: 600px;
    margin: auto;
    color: #6b7280;
    margin-bottom: 50px;
}

/* GRID */
.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

/* CARD */
.why-card {
    background: #f9fafb;
    padding: 25px;
    border-radius: 16px;
    transition: 0.3s;
    text-align: left;
    border: 1px solid #f1f5f9;
}

.why-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
}

/* ICON */
.why-card .icon {
    font-size: 26px;
    margin-bottom: 15px;
}

/* TITLE */
.why-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: #111827;
}

/* TEXT */
.why-card p {
    font-size: 14px;
    color: #6b7280;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .why-grid {
        grid-template-columns: 1fr;
    }

    .why-header h2 {
        font-size: 26px;
    }
}

.why-card:hover {
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    color: #fff;
}

.why-card:hover p {
    color: #e5e7eb;
}

.why-card:hover h3 {
    color: #facc15;
}

/* KELAS */
.kelas {
    padding: 80px 20px;
    background: #f3f4f6;
}

.kelas-wrap {
    flex-direction: column;
}

/* HEADER */
.kelas-header {
    text-align: center;
    margin-bottom: 30px;
}

.kelas-header h2 {
    font-size: 28px;
    margin-bottom: 10px;
}

.kelas-header p {
    color: #6b7280;
}

/* FILTER */
.kelas-filter {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.kelas-filter button {
    padding: 8px 16px;
    border: none;
    background: #e5e7eb;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
}

.kelas-filter button.active {
    background: #1e3a8a;
    color: #fff;
}

/* GRID */
.kelas-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

/* CARD */
.kelas-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    transition: 0.3s;
    position: relative;
}

.kelas-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.kelas-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

/* BADGE */
.badge {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 6px;
    color: #111;
    font-weight: 600;
}

.badge.yellow {
    background: #facc15;
}

.badge.white {
    background: #ffffff;
}

.badge.pink {
    background: #f472b6;
    color: #fff;
}

/* CONTENT */
.kelas-content {
    padding: 15px;
}

.kelas-content h3 {
    font-size: 16px;
    margin-bottom: 5px;
}

.author {
    font-size: 13px;
    color: #6b7280;
}

.rating {
    font-size: 13px;
    margin: 6px 0;
}

.rating span {
    color: #9ca3af;
}

.price {
    font-weight: bold;
    color: #111827;
}

/* CTA */
.kelas-cta {
    text-align: center;
    margin-top: 30px;
}

.kelas-cta a {
    color: #1e3a8a;
    font-weight: 600;
    text-decoration: none;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
    .kelas-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .kelas-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.kelas-card {
    transition: all 0.3s ease;
    text-decoration: none;
    color: black;
}

/* TESTIMONI */
.testimoni {
    padding: 80px 20px;
    background: #fff;
}

.testimoni-wrap {
    flex-direction: column;
    text-align: center;
}

/* HEADER */
.testimoni-header h2 {
    font-size: 30px;
    margin-bottom: 10px;
}

.testimoni-header p {
    color: #6b7280;
    margin-bottom: 40px;
}

/* GRID */
.testimoni-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

/* CARD */
.testi-card {
    background: #f9fafb;
    padding: 25px;
    border-radius: 16px;
    text-align: left;
    transition: 0.3s;
    border: 1px solid #f1f5f9;
}

.testi-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
}

/* QUOTE */
.quote {
    font-size: 14px;
    color: #374151;
    margin-bottom: 20px;
    line-height: 1.6;
}

/* USER */
.user {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.user img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
}

.user strong {
    display: block;
    font-size: 14px;
}

.user span {
    font-size: 12px;
    color: #6b7280;
}

/* RATING */
.rating {
    font-size: 14px;
    color: #facc15;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .testimoni-grid {
        grid-template-columns: 1fr;
    }
}

/* CTA CLOSING */
.cta-closing {
    padding: 80px 20px;
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    color: #fff;
    text-align: center;
}

.cta-wrap {
    flex-direction: column;
}

/* TITLE */
.cta-closing h2 {
    font-size: 34px;
    margin-bottom: 15px;
}

/* TEXT */
.cta-closing p {
    max-width: 600px;
    margin: auto;
    color: #e5e7eb;
    margin-bottom: 25px;
}

/* BUTTON */
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* TRUST */
.cta-trust {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    font-size: 14px;
    color: #e5e7eb;
}

.cta-trust span {
    background: rgba(255, 255, 255, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .cta-closing h2 {
        font-size: 26px;
    }
}

/* FAQ */
.faq {
    padding: 80px 20px;
    background: #f9fafb;
}

.faq-wrap {
    flex-direction: column;
}

/* HEADER */
.faq-header {
    text-align: center;
    margin-bottom: 40px;
}

.faq-header h2 {
    font-size: 30px;
    margin-bottom: 10px;
}

.faq-header p {
    color: #6b7280;
}

/* LIST */
.faq-list {
    max-width: 800px;
    margin: auto;
}

/* ITEM */
.faq-item {
    background: #fff;
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    border: 1px solid #e5e7eb;
    transition: 0.3s;
}

.faq-item.active {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

/* QUESTION */
.faq-question {
    padding: 16px 20px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ANSWER */
.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    color: #6b7280;
    transition: 0.3s;
}

/* ACTIVE STATE */
.faq-item.active .faq-answer {
    padding: 15px 20px;
    max-height: 200px;
}

/* ICON */
.faq-question span {
    font-size: 18px;
    transition: 0.3s;
}

.faq-item.active .faq-question span {
    transform: rotate(45deg);
}

/* FOOTER */
.footer {
    background: #111827;
    color: #d1d5db;
    padding: 60px 20px 20px;
}

/* WRAP */
.footer-wrap {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

/* LOGO */
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.footer-logo img {
    width: 40px;
}

.footer-logo span {
    font-weight: 700;
    font-size: 18px;
    color: #fff;
}

/* TEXT */
.footer-col p {
    font-size: 14px;
    line-height: 1.6;
}

/* TITLE */
.footer-col h4 {
    margin-bottom: 15px;
    color: #fff;
}

/* LIST */
.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
    font-size: 14px;
}

/* LINK */
.footer-col ul li a {
    text-decoration: none;
    color: #d1d5db;
    transition: 0.3s;
}

.footer-col ul li a:hover {
    color: #facc15;
}

/* BOTTOM */
.footer-bottom {
    border-top: 1px solid #374151;
    margin-top: 40px;
    padding-top: 15px;
    text-align: center;
    font-size: 13px;
    color: #9ca3af;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .footer-wrap {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-logo {
        justify-content: center;
    }
}

/* AUTH (LOGIN & REGISTER) */
.auth {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 80px 20px;
    background: #f3f4f6;
    min-height: 80vh;
}

.auth-box {
    background: #fff;
    padding: 30px;
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.auth-box h2 {
    margin-bottom: 10px;
}

.auth-box p {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 20px;
}

/* FORM */
.form-group {
    text-align: left;
    margin-bottom: 15px;
}

.form-group label {
    font-size: 13px;
    display: block;
    margin-bottom: 5px;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #d1d5db;
}

/* BUTTON */
.auth .btn-primary {
    width: 100%;
    margin-top: 10px;
}

/* FOOTER */
.auth-footer {
    margin-top: 15px;
    font-size: 13px;
}

/* FIX FOOTER ALIGNMENT */
.footer .container {
    align-items: flex-start;
}

.footer-wrap {
    align-items: flex-start;
}

/* OPTIONAL: biar judul lebih rapi & konsisten */
.footer-col h4 {
    min-height: 24px;
}

/* BUTTON KELAS PREMIUM */
.btn-kelas {
    display: inline-block;
    background: linear-gradient(135deg, #facc15, #eab308);
    color: #111;
    font-weight: 600;
    padding: 14px 26px;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(30, 58, 138, 0.3);
    position: relative;
    overflow: hidden;
}

/* hover effect */
.btn-kelas:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 15px 40px rgba(30, 58, 138, 0.5);
}

/* glow effect */
.btn-kelas::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    transition: 0.5s;
}

.btn-kelas:hover::before {
    left: 100%;
}