:root {
    --ink: #101828;
    --muted: #667085;
    --line: #e6edf7;
    --paper: #ffffff;
    --soft: #f7fbff;
    --blue: #0066ff;
    --blue-dark: #0044cc;
    --orange: #ff6600;
    --green: #00cc66;
    --navy: #0f172a;
    --shadow: 0 24px 70px rgba(0, 64, 160, 0.16);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    overflow-x: hidden;
}

a {
    text-decoration: none;
}

img {
    max-width: 100%;
}

section {
    padding: 88px 0;
}

.site-header {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(0, 102, 255, 0.10);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
    transition: 0.25s ease;
}

.site-header.scrolled {
    box-shadow: 0 14px 38px rgba(15, 23, 42, 0.12);
}

.topbar {
    width: 100%;
    padding: 8px 0;
    color: #fff;
    background: linear-gradient(90deg, var(--blue), var(--orange), var(--green));
    font-size: 0.84rem;
    font-weight: 800;
}

.topbar a {
    color: #fff;
}

.topbar i {
    margin-right: 6px;
}

.site-header .navbar {
    width: 100%;
    margin: 0;
    padding: 12px 0;
    background: transparent;
}

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    font-weight: 900;
}

.brand-lockup img {
    width: 42px;
    height: 42px;
    object-fit: contain;
}

.nav-link {
    color: #334155 !important;
    font-size: 0.94rem;
    font-weight: 750;
    padding: 10px 12px !important;
}

.nav-link:hover {
    color: var(--blue) !important;
}

.btn-nav,
.btn-primary-action,
.btn-secondary-action,
.btn-site-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 46px;
    border-radius: 8px;
    font-weight: 850;
}

.btn-nav {
    color: #fff;
    background: var(--blue);
    padding: 10px 16px;
    box-shadow: 0 10px 22px rgba(0, 102, 255, 0.22);
}

.btn-nav:hover {
    color: #fff;
    background: var(--orange);
}

.navbar-toggler {
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.mobile-menu {
    border: 0;
}

.mobile-menu .offcanvas-header {
    border-bottom: 1px solid var(--line);
}

.whatsapp-btn,
.back-to-top-btn {
    position: fixed;
    right: 24px;
    z-index: 1000;
    display: grid;
    place-items: center;
    color: #fff;
    border-radius: 999px;
    box-shadow: 0 16px 35px rgba(15, 23, 42, 0.22);
    transition: 0.2s ease;
}

.whatsapp-btn {
    bottom: 24px;
    width: 58px;
    height: 58px;
    background: #25d366;
    font-size: 1.55rem;
}

.back-to-top-btn {
    bottom: 92px;
    width: 48px;
    height: 48px;
    background: var(--blue);
    opacity: 0;
    visibility: hidden;
}

.back-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
}

.whatsapp-btn:hover,
.back-to-top-btn:hover {
    color: #fff;
    transform: translateY(-3px);
}

.hero-section {
    min-height: 92vh;
    padding: 150px 0 76px;
    display: flex;
    align-items: center;
    background:
        radial-gradient(circle at 82% 18%, rgba(0, 204, 102, 0.16), transparent 28%),
        radial-gradient(circle at 16% 20%, rgba(255, 102, 0, 0.13), transparent 32%),
        linear-gradient(135deg, rgba(0, 102, 255, 0.10), rgba(255, 255, 255, 0.96) 48%, rgba(0, 204, 102, 0.08)),
        #f8fafc;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: "";
    position: absolute;
    inset: auto -14% -34% -12%;
    height: 420px;
    background: linear-gradient(90deg, rgba(0, 102, 255, 0.14), rgba(255, 102, 0, 0.12), rgba(0, 204, 102, 0.12));
    transform: rotate(-4deg);
}

.hero-copy,
.product-showcase {
    position: relative;
    z-index: 1;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    color: var(--blue);
    font-size: 0.76rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.eyebrow::before {
    content: "";
    width: 28px;
    height: 2px;
    background: currentColor;
}

.hero-copy h1,
.section-heading h2,
.proclamation-section h2 {
    margin: 0;
    color: var(--ink);
    font-weight: 900;
    letter-spacing: 0;
    line-height: 1.1;
}

.hero-copy h1 {
    max-width: 640px;
    font-size: clamp(2.25rem, 4.2vw, 4.05rem);
}

.hero-copy p,
.section-heading p,
.proclamation-section p {
    color: var(--muted);
    font-size: 1.04rem;
    line-height: 1.72;
}

.hero-copy p {
    max-width: 600px;
    margin: 20px 0 0;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 30px 0;
}

.btn-primary-action {
    color: #fff;
    background: var(--blue);
    border: 1px solid var(--blue);
    padding: 13px 18px;
    box-shadow: 0 14px 30px rgba(0, 102, 255, 0.22);
}

.btn-primary-action:hover {
    color: #fff;
    background: var(--blue-dark);
}

.btn-secondary-action {
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--line);
    padding: 13px 18px;
}

.btn-secondary-action:hover {
    color: var(--blue);
    border-color: rgba(0, 102, 255, 0.35);
}

.btn-site-action {
    color: var(--blue);
    background: rgba(0, 102, 255, 0.08);
    border: 1px solid rgba(0, 102, 255, 0.18);
    padding: 13px 18px;
}

.btn-site-action:hover {
    color: #fff;
    background: var(--orange);
    border-color: var(--orange);
}

.hero-proof {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    max-width: 560px;
}

.hero-proof div {
    min-height: 86px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.80);
    border: 1px solid rgba(0, 102, 255, 0.12);
    border-radius: 8px;
}

.hero-proof strong {
    display: block;
    color: var(--blue);
    font-size: 1.45rem;
    line-height: 1;
}

.hero-proof div:nth-child(2) strong {
    color: var(--orange);
}

.hero-proof div:nth-child(3) strong {
    color: var(--green);
}

.hero-proof span {
    display: block;
    margin-top: 7px;
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 750;
}

.product-showcase {
    min-height: 560px;
}

.dashboard-shell {
    width: min(100%, 620px);
    margin-left: auto;
    padding: 16px;
    background:
        linear-gradient(145deg, rgba(0, 102, 255, 0.28), rgba(15, 23, 42, 0.98) 42%),
        #0b1220;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.dashboard-topbar {
    display: flex;
    gap: 8px;
    padding: 6px 0 18px;
}

.dashboard-topbar span {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: #64748b;
}

.dashboard-topbar span:nth-child(1) {
    background: var(--orange);
}

.dashboard-topbar span:nth-child(2) {
    background: #ffb020;
}

.dashboard-topbar span:nth-child(3) {
    background: var(--green);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.metric-card,
.payment-panel,
.ai-panel {
    color: #fff;
    padding: 18px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
}

.metric-card small,
.payment-panel .panel-heading,
.installment span {
    color: #cbd5e1;
    font-weight: 750;
}

.metric-card strong {
    display: block;
    margin: 9px 0 4px;
    font-size: 2.05rem;
    line-height: 1;
}

.metric-card span {
    color: #8ec5ff;
    font-size: 0.86rem;
}

.accent-green span {
    color: #86efac;
}

.payment-panel,
.ai-panel {
    grid-column: span 2;
}

.panel-heading,
.installment,
.results-header,
.student-line,
.info-item,
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.installment {
    margin-top: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 8px;
}

.installment.active {
    background: linear-gradient(90deg, rgba(0, 102, 255, 0.34), rgba(255, 102, 0, 0.22));
}

.ai-panel {
    display: flex;
    align-items: flex-start;
}

.ai-panel i {
    color: #ffb020;
    font-size: 1.35rem;
}

.ai-panel p {
    margin: 0;
    color: #e2e8f0;
}

.phone-preview {
    position: absolute;
    right: -8px;
    bottom: 4px;
    width: 210px;
    padding: 10px;
    background: #111827;
    border-radius: 28px;
    box-shadow: 0 22px 60px rgba(15, 23, 42, 0.28);
}

.phone-preview img {
    width: 100%;
    aspect-ratio: 9 / 18;
    object-fit: cover;
    border-radius: 20px;
}

.section-heading {
    max-width: 760px;
    margin: 0 auto 44px;
    text-align: center;
}

.section-heading.align-left {
    margin-left: 0;
    text-align: left;
}

.section-heading h2,
.proclamation-section h2 {
    font-size: clamp(1.85rem, 3.4vw, 3rem);
}

.section-heading p {
    margin: 16px 0 0;
}

.platform-section,
.experience-section,
.contact-section {
    background: #fff;
}

.value-card,
.testimonial-card {
    height: 100%;
    padding: 28px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    transition: 0.24s ease;
}

.value-card:hover,
.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 45px rgba(0, 102, 255, 0.10);
}

.value-card i {
    display: grid;
    place-items: center;
    width: 50px;
    height: 50px;
    color: #fff;
    background: linear-gradient(135deg, var(--blue), var(--green));
    border-radius: 8px;
    font-size: 1.35rem;
}

.value-card h3,
.feature-row h3,
.contact-info-container h3 {
    margin: 20px 0 10px;
    font-size: 1.25rem;
    font-weight: 900;
}

.value-card p,
.feature-row p,
.testimonial-card p {
    color: var(--muted);
    line-height: 1.65;
}

.features-section,
.trust-section {
    background: var(--soft);
}

.feature-list {
    display: grid;
    gap: 18px;
}

.feature-row {
    display: grid;
    grid-template-columns: 78px minmax(0, 1fr) 250px;
    align-items: center;
    gap: 24px;
    padding: 18px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.feature-row.reverse {
    grid-template-columns: 250px 78px minmax(0, 1fr);
}

.feature-row.reverse img {
    order: 1;
}

.feature-row.reverse .feature-icon {
    order: 2;
}

.feature-row.reverse div:not(.feature-icon) {
    order: 3;
}

.feature-icon {
    display: grid;
    place-items: center;
    width: 64px;
    height: 64px;
    color: #fff;
    background: linear-gradient(135deg, var(--blue), var(--orange));
    border-radius: 8px;
    font-size: 1.5rem;
}

.feature-row img {
    width: 100%;
    height: 170px;
    object-fit: cover;
    border-radius: 8px;
}

.proclamation-section {
    color: #fff;
    background:
        radial-gradient(circle at 78% 18%, rgba(0, 204, 102, 0.18), transparent 30%),
        linear-gradient(135deg, #071329 0%, #0b2a58 52%, #111827 100%);
}

.proclamation-section h2,
.proclamation-section .eyebrow {
    color: #fff;
}

.proclamation-section p {
    color: #cbd5e1;
}

.check-list {
    display: grid;
    gap: 12px;
    margin: 26px 0 0;
    padding: 0;
    list-style: none;
}

.check-list li {
    display: flex;
    gap: 12px;
    color: #e2e8f0;
    line-height: 1.55;
}

.check-list i {
    margin-top: 4px;
    color: #86efac;
}

.results-board {
    padding: 22px;
    background: #fff;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.results-header {
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
}

.results-header span {
    display: block;
    color: var(--muted);
    font-weight: 750;
}

.results-header strong {
    color: var(--ink);
    font-size: 1.3rem;
}

.results-header button {
    min-width: 112px;
    min-height: 42px;
    color: #fff;
    background: var(--green);
    border: 0;
    border-radius: 8px;
    font-weight: 900;
}

.student-line {
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
}

.student-line span {
    display: grid;
    place-items: center;
    flex: 0 0 38px;
    height: 38px;
    color: var(--blue);
    background: #eff6ff;
    border-radius: 8px;
    font-weight: 900;
}

.student-line strong {
    flex: 0 0 130px;
    color: var(--ink);
}

.student-line .progress {
    flex: 1;
    height: 10px;
    background: #e2e8f0;
    border-radius: 999px;
    overflow: hidden;
}

.student-line .progress div {
    height: 100%;
    background: linear-gradient(90deg, var(--blue), var(--orange), var(--green));
}

.student-line em {
    min-width: 48px;
    color: var(--ink);
    font-style: normal;
    font-weight: 900;
    text-align: right;
}

.result-note {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
    padding: 14px;
    color: #155e75;
    background: #ecfeff;
    border: 1px solid #a5f3fc;
    border-radius: 8px;
    font-weight: 750;
}

.screens-carousel {
    position: relative;
    padding: 14px 52px 46px;
    background:
        linear-gradient(#fff, #fff) padding-box,
        linear-gradient(120deg, var(--blue), var(--orange), var(--green)) border-box;
    border: 1px solid transparent;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.screen-slide {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.screen-slide a {
    display: block;
    height: 380px;
    min-height: 380px;
    overflow: hidden;
    background: #eef2ff;
    border-radius: 8px;
}

.screen-slide img {
    width: 100%;
    height: 380px;
    min-height: 380px;
    object-fit: cover;
    transition: 0.38s ease;
}

.screen-slide a:hover img {
    transform: scale(1.045);
}

.screens-carousel .carousel-control-prev,
.screens-carousel .carousel-control-next {
    width: 48px;
    opacity: 1;
}

.screens-carousel .carousel-control-prev-icon,
.screens-carousel .carousel-control-next-icon {
    width: 42px;
    height: 42px;
    background-color: var(--blue);
    background-size: 48%;
    border-radius: 999px;
    box-shadow: 0 12px 24px rgba(0, 102, 255, 0.25);
}

.screens-carousel .carousel-indicators {
    bottom: 14px;
    margin-bottom: 0;
}

.screens-carousel .carousel-indicators [data-bs-target] {
    width: 28px;
    height: 5px;
    background-color: var(--blue);
    border: 0;
    border-radius: 999px;
}

.testimonial-card p {
    min-height: 104px;
    margin-bottom: 24px;
    color: #475569;
    font-size: 1.02rem;
}

.testimonial-card strong,
.testimonial-card span,
.footer-grid a,
.footer-grid span {
    display: block;
}

.testimonial-card strong {
    color: var(--ink);
}

.testimonial-card span {
    margin-top: 4px;
    color: var(--muted);
}

.contact-section {
    background: linear-gradient(180deg, #fff 0%, #f8fafc 100%);
}

.contact-card {
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.contact-info-container {
    padding: 48px;
    color: #fff;
    background:
        linear-gradient(135deg, rgba(0, 102, 255, 0.95), rgba(255, 102, 0, 0.30) 48%, rgba(15, 23, 42, 0.96)),
        var(--navy);
}

.contact-info-container h3 {
    margin-top: 0;
    font-size: 2rem;
}

.contact-info-container p {
    color: #dbeafe;
    line-height: 1.75;
}

.info-item {
    justify-content: flex-start;
    margin-top: 22px;
    color: #fff;
    font-weight: 750;
}

.info-item i {
    display: grid;
    place-items: center;
    flex: 0 0 42px;
    height: 42px;
    color: var(--blue);
    background: #fff;
    border-radius: 8px;
}

.contact-form-container {
    border-radius: 0 !important;
    box-shadow: none !important;
}

.contact-form-container h4 {
    font-weight: 900;
}

.form-control {
    min-height: 54px;
    border-color: var(--line);
    border-radius: 8px;
}

textarea.form-control {
    min-height: 130px;
}

.form-control:focus {
    border-color: rgba(0, 102, 255, 0.55);
    box-shadow: 0 0 0 0.22rem rgba(0, 102, 255, 0.12);
}

.contact-form-container .btn-primary {
    min-height: 52px;
    border: 0 !important;
    border-radius: 8px;
    background: var(--blue) !important;
    font-weight: 900;
}

.site-footer {
    padding: 62px 0 28px;
    color: #cbd5e1;
    background: #090e1a;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 34px;
}

.footer-brand {
    color: #fff;
    margin-bottom: 16px;
}

.site-footer p {
    max-width: 360px;
    line-height: 1.7;
}

.footer-grid h4 {
    margin: 0 0 16px;
    color: #fff;
    font-size: 1rem;
    font-weight: 900;
}

.footer-grid a,
.footer-grid span {
    margin: 9px 0;
    color: #cbd5e1;
}

.footer-grid a:hover,
.social-links a:hover {
    color: #fff;
}

.footer-bottom {
    margin-top: 42px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.social-links {
    display: flex;
    gap: 10px;
}

.social-links a {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    color: #cbd5e1;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 8px;
}

.video-modal {
    overflow: hidden;
    background: #000;
    border: 0;
    border-radius: 8px;
}

.image-modal {
    border: 0;
    border-radius: 8px;
}

[data-animate] {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.72s ease, transform 0.72s ease;
}

[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

.hero-copy.is-visible {
    transition-delay: 0.06s;
}

.product-showcase.is-visible {
    transition-delay: 0.18s;
}

.value-card.is-visible,
.feature-row.is-visible,
.testimonial-card.is-visible {
    animation: kelasiFloatIn 0.72s ease both;
}

@keyframes kelasiFloatIn {
    from {
        opacity: 0;
        transform: translateY(22px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 1199.98px) {
    .product-showcase {
        min-height: 520px;
    }

    .phone-preview {
        right: 18px;
    }
}

@media (max-width: 991.98px) {
    section {
        padding: 74px 0;
    }

    .hero-section {
        min-height: auto;
        padding-top: 142px;
    }

    .product-showcase {
        min-height: auto;
    }

    .dashboard-shell {
        margin: 0;
    }

    .phone-preview {
        position: relative;
        right: auto;
        bottom: auto;
        width: min(230px, 65vw);
        margin: -110px 24px 0 auto;
    }

    .feature-row,
    .feature-row.reverse {
        grid-template-columns: 64px minmax(0, 1fr);
    }

    .feature-row img,
    .feature-row.reverse img {
        grid-column: 1 / -1;
        order: 3;
        height: 240px;
    }

    .feature-row.reverse .feature-icon {
        order: 1;
    }

    .feature-row.reverse div:not(.feature-icon) {
        order: 2;
    }

    .screen-slide {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .screen-slide a {
        height: 380px;
        min-height: 380px;
    }

    .screen-slide img {
        height: 380px;
        min-height: 380px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767.98px) {
    section {
        padding: 62px 0;
    }

    .topbar {
        display: none;
    }

    .site-header .navbar {
        padding: 9px 0;
    }

    .brand-lockup img {
        width: 36px;
        height: 36px;
    }

    .hero-section {
        padding: 106px 0 58px;
    }

    .hero-copy h1 {
        font-size: 2.2rem;
    }

    .hero-copy p,
    .section-heading p,
    .proclamation-section p {
        font-size: 1rem;
    }

    .hero-actions {
        display: grid;
    }

    .btn-primary-action,
    .btn-secondary-action,
    .btn-site-action {
        width: 100%;
    }

    .hero-proof {
        grid-template-columns: 1fr;
    }

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

    .payment-panel,
    .ai-panel {
        grid-column: auto;
    }

    .phone-preview {
        margin-top: 18px;
    }

    .feature-row,
    .feature-row.reverse {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .feature-row img,
    .feature-row.reverse img {
        grid-column: auto;
        height: 220px;
    }

    .student-line {
        display: grid;
        grid-template-columns: 38px 1fr auto;
    }

    .student-line .progress {
        grid-column: 1 / -1;
        width: 100%;
    }

    .screens-carousel {
        padding: 14px 14px 52px;
    }

    .screen-slide {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .screen-slide a,
    .screen-slide img {
        height: 340px;
        min-height: 340px;
    }

    .screens-carousel .carousel-control-prev,
    .screens-carousel .carousel-control-next {
        display: none;
    }

    .contact-info-container {
        padding: 32px 24px;
    }

    .footer-grid,
    .footer-bottom {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        display: grid;
        justify-content: stretch;
    }
}

@media (max-width: 420px) {
    .hero-copy h1 {
        font-size: 2rem;
    }

    .section-heading h2,
    .proclamation-section h2 {
        font-size: 1.78rem;
    }

    .whatsapp-btn,
    .back-to-top-btn {
        right: 16px;
    }
}