/* 1. CSS Variables & Theme Setup */
:root {
    --primary-color: #2563eb;      /* Biru profesional */
    --primary-hover: #1d4ed8;
    --dark-bg: #0f172a;            /* Slate gelap */
    --light-bg: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #000000;
    --text-muted: #000000;
    --border-color: #e2e8f0;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 4px rgba(243, 247, 7, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --max-width: 1200px;

    /* NOMOR WHATSAPP TERPUSAT (Ubah nomor di sini kapan saja) */
    --whatsapp-number: "6285211200550";
/* Warna Header Tabel */
    --table-header-bg: #d6f71a;
    /* Warna Tambahan (Hasil Penggabungan) */
    --hero-bg-gradient-start: #eff6ff;
    --hero-bg-gradient-end: #dbeafe;
    --btn-primary-bg: #047857;
    --btn-primary-hover: #1A2421;
    --btn-primary-shadow: rgba(1, 247, 13, 0.61);
    --btn-text: #ffffff;
    --img-bg: #cbd5e1;
    --testimonial-bg: #d6f71a;
    --star-color: #f59e0b;
    --text-dark: #334155;
    --footer-text: #94a3b8;
    --footer-link: #38bdf8;
    --footer-border: #1e293b;
}
/* Tambahkan styling tabel agar baris header mengambil warna dari :root */
table thead tr {
    background-color: var(--table-header-bg);
}

/* 2. Global Reset & Performance Typography */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-main);
    background-color: var(--light-bg);
    line-height: 1.6;
}

img {
    max-width: 100%;
    height: auto;
}

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

/* Layout Container */
section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 60px 20px;
}

section h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 12px;
    color: var(--dark-bg);
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin: 10px auto 0 auto;
    border-radius: 2px;
}

.section-desc {
    text-align: center;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 40px auto;
}

/* 3. Header & Navigation */
header {
    background-color: var(--card-bg);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 25px;
}

nav ul li a {
    font-weight: 500;
    color: var(--text-main);
    transition: color 0.2s ease;
}

nav ul li a:hover {
    color: var(--primary-color);
}

/* 4. Hero Section */
#hero {
    text-align: center;
    padding: 90px 20px 70px 20px;
    background: linear-gradient(135deg, var(--hero-bg-gradient-start) 0%, var(--hero-bg-gradient-end) 100%);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

#hero h1 {
    font-size: 2.6rem;
    color: var(--dark-bg);
    max-width: 900px;
    margin: 0 auto 20px auto;
    line-height: 1.25;
}

#hero p {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 30px auto;
}

#hero a {
    display: inline-block;
    background-color: var(--btn-primary-bg);
    color: var(--btn-text);
    font-weight: 600;
    padding: 14px 32px;
    border-radius: 50px;
    box-shadow: 0 4px 12px var(--btn-primary-shadow);
    transition: background-color 0.2s, transform 0.2s;
}

#hero a:hover {
    background-color: var(--btn-primary-hover);
    transform: translateY(-2px);
}

/* 5. Section Tentang Layanan */
.intro-text {
    max-width: 800px;
    margin: 0 auto 30px auto;
    text-align: center;
    color: var(--text-muted);
}

.intro-text p {
    margin-bottom: 12px;
}

.layanan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 30px;
}

.layanan-grid .card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.layanan-grid .card h3 {
    color: var(--primary-color);
    margin-bottom: 12px;
}

/* 6. Section Alasan Memilih Kami */
#alasan-memilih ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    list-style: none;
}

#alasan-memilih ul li {
    background: var(--card-bg);
    padding: 30px 24px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

#alasan-memilih ul li:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

#alasan-memilih ul li h3 {
    color: var(--primary-color);
    margin-bottom: 12px;
    font-size: 1.25rem;
}

/* 7. Section Katalog Laptop */
.katalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.katalog-grid article {
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
}

.katalog-grid article:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.katalog-grid article img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background-color: var(--img-bg);
}

.katalog-content {
    padding: 20px;
}

.katalog-content h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--dark-bg);
}

.katalog-content p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

/* 8. Section Cara Pemesanan */
.step-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    list-style: none;
    counter-reset: step-counter;
}

.step-list li {
    background: var(--card-bg);
    padding: 30px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: relative;
    text-align: center;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--btn-text);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin: 0 auto 16px auto;
}

.step-list h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.step-list p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* 9. Section Syarat & Ketentuan */
.syarat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.syarat-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.syarat-card h3 {
    color: var(--primary-color);
    margin-bottom: 16px;
    font-size: 1.2rem;
}

.syarat-card ul {
    padding-left: 20px;
    color: var(--text-muted);
}

.syarat-card ul li {
    margin-bottom: 8px;
}

/* 10. Section FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

#faq details {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-bottom: 14px;
    padding: 16px 20px;
    transition: border-color 0.2s;
}

#faq details[open] {
    border-color: var(--primary-color);
}

#faq summary {
    font-weight: 600;
    cursor: pointer;
    color: var(--dark-bg);
    font-size: 1.05rem;
}

#faq details p {
    margin-top: 12px;
    color: var(--text-muted);
}

/* 11. Section Testimonial */
#klien-testimonial {
    background-color: var(--testimonial-bg);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 1100px;
    margin: 30px auto 0 auto;
}

.testimonial-card {
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    padding: 25px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.rating-stars {
    color: var(--star-color);
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.testimonial-card blockquote {
    font-style: italic;
    color: var(--text-dark);
    line-height: 1.6;
    margin: 0 0 20px 0;
}

.client-info {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
}

.client-name {
    font-weight: bold;
    color: var(--dark-bg);
    font-size: 1rem;
}

.client-role {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* 12. Footer Section */
footer {
    background-color: var(--dark-bg);
    color: var(--footer-text);
    padding: 60px 20px 20px 20px;
    margin-top: 40px;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-info h2 {
    color: var(--btn-text);
    margin-bottom: 20px;
    font-size: 1.4rem;
}

.footer-info address {
    font-style: normal;
    line-height: 1.8;
}

.footer-info a {
    color: var(--footer-link);
}

.footer-map iframe {
    border-radius: var(--radius-sm);
}

.footer-bottom {
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
    border-top: 1px solid var(--footer-border);
    padding-top: 20px;
    font-size: 0.9rem;
}

.wa-float {
    position: fixed;
    bottom: 40px;
    right: 20px;
    background-color: #ffff00; /* Warna background kuning */
    color: #000000;            /* Warna teks hitam */
    border-radius: 0px;        /* Sudut kotak (tanpa melingkar) */
    padding: 12px 18px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
    text-decoration: none;
    font-weight: bold;
    font-family: sans-serif;
    transition: background-color 0.2s, transform 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.wa-float:hover {
    background-color: #e6e600; /* Warna sedikit lebih gelap saat kursor diarahkan */
    transform: translateY(-3px);
}

/* 14. Responsif untuk Smartphone & Tablet */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px 18px;
    }

    #hero h1 {
        font-size: 1.85rem;
    }

    #hero p {
        font-size: 1rem;
    }

    section {
        padding: 40px 16px;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}