/* 
    Sewa Mobil Bersama - Main Style Sheet
    Design: Modern, Professional, Mobile-First
*/

:root {
    /* Color Palette */
    --primary: #1e3a8a; /* Navy Blue */
    --primary-light: #2563eb;
    --secondary: #f59e0b; /* Amber/Orange */
    --accent: #10b981; /* Emerald Green */
    --whatsapp: #25d366;
    --dark: #0f172a;
    --light: #f8fafc;
    --gray: #64748b;
    --white: #ffffff;
    
    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-premium: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--dark);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s ease;
}

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Navigation --- */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: 0.3s;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--primary);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    font-size: 1.5rem;
}

.btn-cta {
    background-color: var(--whatsapp);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-md);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background-color: #21bd5c;
}

/* --- Hero Section --- */
.hero {
    padding: 120px 0;
    background: linear-gradient(rgba(30, 58, 138, 0.8), rgba(30, 58, 138, 0.6)), url('../img/hero.png');
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
    color: var(--white);
}

.hero-content {
    max-width: 700px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--white);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-btns {
    display: flex;
    gap: 15px;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 600;
}

.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 600;
}

/* --- Features --- */
.section-padding {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: var(--white);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-premium);
}

/* --- Booking Form --- */
.booking-bar {
    background: var(--white);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    margin-top: -50px;
    position: relative;
    z-index: 10;
}

.booking-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    align-items: end;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray);
}

.form-group input, .form-group select {
    padding: 12px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    outline: none;
}

/* --- Footer --- */
footer {
    background-color: var(--dark);
    color: var(--white);
    padding: 80px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-col h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-col ul li {
    margin-bottom: 10px;
    color: #94a3b8;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #64748b;
    font-size: 0.9rem;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    header {
        height: 70px;
    }
    
    nav {
        height: 70px;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 40px;
        transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links a {
        font-size: 1.2rem;
        font-weight: 600;
    }

    .btn-cta {
        display: none; /* Sembunyikan di header mobile, pindahkan ke hero atau menu */
    }

    .hero {
        padding: 80px 0;
        text-align: center;
    }

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

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

    .hero-btns {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary, .btn-outline {
        width: 100%;
        text-align: center;
    }

    .booking-bar {
        margin-top: -30px;
        padding: 20px;
    }

    .booking-form {
        grid-template-columns: 1fr;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }
}