/* ======================================================
   PT MITRA ARMADA INDONESIA
   Theme : Green - White - Silver (Modern Corporate)
====================================================== */

:root {
    --primary: #0A5C32;          /* Hijau Utama Emrald (Lebih solid & profesional) */
    --primary-light: #157347;    /* Hijau Terang untuk Hover */
    --secondary: #F8F9FA;        /* Putih Tulang / Off-White untuk Background */
    --silver: #E9ECEF;           /* Silver Cerah */
    --silver-dark: #CED4DA;      /* Silver untuk border / aksen */
    --dark: #212529;             /* Hitam Elegan untuk Judul */
    --text: #495057;             /* Abu-abu Gelap untuk Teks Panjang (Lebih adem di mata) */
    --white: #FFFFFF;
}

/* ======================================================
    GLOBAL
====================================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    background: var(--white);
    overflow-x: hidden;
    line-height: 1.6;
}

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

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

/* ======================================================
    NAVBAR
====================================================== */

.navbar {
    background: var(--white);
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05); /* Shadow lebih halus */
}

.navbar-brand {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary) !important;
    letter-spacing: 0.5px;
}

.navbar-nav .nav-link {
    color: var(--dark);
    font-weight: 600;
    font-size: 15px;
    margin-left: 20px;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary);
}

/* ======================================================
    BUTTON
====================================================== */

.btn {
    border-radius: 8px; /* Mengubah round melingkar menjadi kotak bersudut halus (Khas Corporate) */
    padding: 10px 24px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-green {
    background: var(--primary);
    color: var(--white);
    border: 1px solid var(--primary);
}

.btn-green:hover {
    background: var(--primary-light);
    color: var(--white);
    border-color: var(--primary-light);
    box-shadow: 0 4px 12px rgba(13, 110, 43, 0.2);
}

.btn-outline-green {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

.btn-outline-green:hover {
    background: var(--primary);
    color: var(--white);
}

/* ======================================================
    HERO
====================================================== */

.hero {
    min-height: 650px;
    display: flex;
    align-items: center;
    /* Mengubah overlay dari hijau pekat ke hitam-hijau transparan agar gambar truk di background lebih kelihatan jelas */
    background: linear-gradient(
        rgba(10, 92, 50, 0.8), 
        rgba(21, 32, 26, 0.85)
    ),
    url('../img/hero.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed; /* Efek parallax halus saat di-scroll */
}

.hero h5 {
    color: var(--silver);
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.hero h1 {
    color: var(--white);
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 18px;
    line-height: 1.8;
    max-width: 650px;
}

/* ======================================================
    SECTION
====================================================== */

section {
    padding: 80px 0;
}

/* Digunakan jika section membutuhkan background abu-abu/silver terang */
section.bg-light {
    background-color: var(--secondary) !important;
}

.section-title {
    font-size: 36px;
    color: var(--dark);
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
}

.section-subtitle {
    color: #6c757d;
    font-size: 16px;
    margin-bottom: 50px;
}

/* ======================================================
    CARD
====================================================== */

.card {
    border: 1px solid var(--silver);
    border-radius: 12px;
    background: var(--white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.04);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.card:hover {
    transform: translateY(-6px);
    border-color: transparent;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.card-title {
    color: var(--dark);
    font-weight: 700;
}

.card:hover .card-title {
    color: var(--primary); /* Judul card berubah hijau saat di-hover */
}

/* ======================================================
    FOOTER
====================================================== */

footer {
    background: var(--dark); /* Mengganti footer jadi gelap agar kontras web seimbang */
    color: rgba(255, 255, 255, 0.75);
    padding: 60px 0 30px;
    border-top: 4px solid var(--primary); /* Aksen hijau di atas footer */
}

footer a {
    color: rgba(255, 255, 255, 0.75);
}

footer a:hover {
    color: var(--white);
}

/* ======================================================
    RESPONSIVE (Merapikan Indentasi)
====================================================== */

@media (max-width: 992px) {
    .hero {
        text-align: center;
        min-height: 550px;
    }
    .hero h1 {
        font-size: 40px;
    }
    .hero p {
        margin: 0 auto;
        font-size: 18px;
    }
    .navbar-nav {
        margin-top: 15px;
        text-align: center;
        padding-bottom: 15px;
    }
    .navbar-nav .nav-link {
        margin-left: 0;
        margin-bottom: 10px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }
    .hero {
        min-height: 480px;
    }
    .hero h1 {
        font-size: 32px;
    }
    .hero p {
        font-size: 16px;
    }
    .section-title {
        font-size: 28px;
    }
}