/* ============================================================ */
/* RESET & BASE */
/* ============================================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #f5f5f7;
    --bg-dark: #1d1d1f;
    --text: #1d1d1f;
    --text-secondary: #86868b;
    --accent: #0066cc;
    --accent-hover: #0077ed;
    --white: #ffffff;
    --radius: 20px;
    --transition: 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

/* ============================================================ */
/* BUTTONS */
/* ============================================================ */
.btn-primary {
    display: inline-block;
    padding: 12px 28px;
    background: var(--accent);
    color: var(--white);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.15);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.25);
}

.btn-secondary {
    display: inline-block;
    padding: 12px 28px;
    background: transparent;
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 50px;
    border: 1px solid #d2d2d7;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    border-color: var(--text);
    background: rgba(0, 0, 0, 0.02);
    transform: translateY(-2px);
}

.btn-small {
    padding: 8px 20px;
    font-size: 0.8rem;
}

/* ============================================================ */
/* NAVBAR - ala Apple */
/* ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 12px 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo-image {
    height: 32px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-menu a {
    position: relative;
    font-size: 0.85rem;
    font-weight: 400;
    color: #1d1d1f;
    padding: 4px 0;
    transition: var(--transition);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: all 0.3s ease;
    transform: translateX(-50%);
    border-radius: 2px;
}

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

.nav-menu a:hover {
    color: var(--text);
}

.nav-cta {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    transition: var(--transition);
}

.nav-cta:hover {
    color: var(--accent-hover);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================================ */
/* HERO - FULL BANNER BACKGROUND */
/* ============================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 0;
    overflow: hidden;
}

.hero-banner {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-banner-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-banner-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 1;
}

.hero-content-center {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 120px 24px 80px;
    color: #ffffff;
}

.hero-eyebrow {
    font-size: 0.8rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: 20px;
    color: #ffffff;
}

.hero-title .highlight {
    color: #00d4ff;
}

.hero-desc {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-content-center .btn-primary {
    background: #ffffff;
    color: #1d1d1f;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.hero-content-center .btn-primary:hover {
    background: rgba(255, 255, 255, 0.85);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.hero-content-center .btn-secondary {
    border-color: rgba(255, 255, 255, 0.4);
    color: #ffffff;
}

.hero-content-center .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.7);
    transform: translateY(-2px);
}

/* ============================================================ */
/* SECTION HEADER */
/* ============================================================ */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--text);
}

.section-title .highlight {
    color: var(--accent);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-top: 12px;
}

/* ============================================================ */
/* PRODUCTS - GRID 4 KOLOM */
/* ============================================================ */
.products {
    padding: 80px 0;
    background: var(--bg);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.product-image {
    position: relative;
    background: #f5f5f7;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image img {
    width: 100%;
    height: 200px;
    object-fit: contain;
}

.product-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--accent);
    color: var(--white);
    font-size: 0.6rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 50px;
    text-transform: uppercase;
    backdrop-filter: blur(4px);
}

.product-body {
    padding: 20px 24px 24px;
}

.product-body h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 2px;
}

.product-sub {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.product-features {
    list-style: none;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 3px 0;
}

.product-features li i {
    color: var(--accent);
    font-size: 0.6rem;
}

.product-guarantee {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 16px;
}

/* ============================================================ */
/* ABOUT */
/* ============================================================ */
.about {
    padding: 80px 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-text p strong {
    color: var(--text);
}

.about-guarantees {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.guarantee-item i {
    color: var(--accent);
    font-size: 1.2rem;
}

.guarantee-item div {
    display: flex;
    flex-direction: column;
}

.guarantee-item strong {
    font-size: 0.9rem;
}

.guarantee-item span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.about-image img {
    width: 100%;
    border-radius: var(--radius);
}

/* ============================================================ */
/* WHY US - 4 KOLOM */
/* ============================================================ */
.whyus {
    padding: 80px 0;
    background: var(--bg);
}

.whyus-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.whyus-card {
    text-align: center;
    padding: 32px 20px;
    background: var(--white);
    border-radius: var(--radius);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.whyus-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
}

.whyus-card i {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 16px;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.whyus-card:hover i {
    transform: scale(1.1);
    opacity: 1;
}

.whyus-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.whyus-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================================ */
/* BLOG */
/* ============================================================ */
.blog {
    padding: 80px 0;
    background: var(--white);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.blog-card {
    padding: 28px;
    background: var(--bg);
    border-radius: var(--radius);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
}

.blog-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.blog-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.blog-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.blog-readmore {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--accent);
    transition: all 0.3s ease;
}

.blog-readmore:hover {
    gap: 14px;
}

/* ============================================================ */
/* CONTACT */
/* ============================================================ */
.contact {
    padding: 80px 0;
    background: var(--bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.contact-item i {
    font-size: 1.2rem;
    color: var(--accent);
}

.contact-item div {
    display: flex;
    flex-direction: column;
}

.contact-item strong {
    font-size: 0.9rem;
}

.contact-item span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-form input,
.contact-form textarea {
    padding: 14px 18px;
    background: var(--white);
    border: 1px solid #d2d2d7;
    border-radius: 12px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

/* ============================================================ */
/* FOOTER */
/* ============================================================ */
.footer {
    padding: 40px 0 20px;
    background: var(--bg);
    border-top: 1px solid #d2d2d7;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 24px;
}

.footer-brand .logo-image {
    height: 28px;
    margin-bottom: 8px;
}

.footer-brand p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--text);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--text);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #d2d2d7;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ============================================================ */
/* ANIMASI FADE-IN UNTUK JS */
/* ============================================================ */
.product-card,
.whyus-card,
.about-grid,
.contact-grid,
.blog-card {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.product-card.visible,
.whyus-card.visible,
.about-grid.visible,
.contact-grid.visible,
.blog-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================ */
/* RESPONSIVE */
/* ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3.2rem;
    }

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

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

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    /* Navbar */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        padding: 40px;
        gap: 20px;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.05);
        transition: var(--transition);
    }

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

    .hamburger {
        display: flex;
    }

    /* Hero */
    .hero-title {
        font-size: 2.4rem;
    }

    .hero-desc {
        font-size: 1rem;
        padding: 0 16px;
    }

    .hero-desc br {
        display: none;
    }

    .hero-banner-overlay {
        background: rgba(0, 0, 0, 0.6);
    }

    .hero-content-center {
        padding: 100px 16px 60px;
    }

    /* Section */
    .section-title {
        font-size: 2rem;
    }

    /* Grid */
    .products-grid {
        gap: 16px;
    }

    .whyus-grid {
        gap: 16px;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* HP Kecil */
@media (max-width: 640px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-eyebrow {
        font-size: 0.7rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
        max-width: 380px;
        margin-left: auto;
        margin-right: auto;
    }

    .whyus-grid {
        grid-template-columns: 1fr;
        max-width: 380px;
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-stats {
        flex-direction: column;
        gap: 12px;
    }
}