/* about.css — background/latar-belakang styles (P7).
 * Source: background-content-style (renamed; content unchanged).
 */

/* ===== background-content-style.css ===== */
.latar-belakang-container .tab-navigation {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 15px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 20px;
    z-index: 100;
}

.latar-belakang-container .tab-button {
    border-radius: 50px;
    padding: 12px 20px;
    margin: 5px;
    background: white;
    border: 2px solid #e9ecef;
    color: #495057;
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 14px;
    display: inline-block;
    cursor: pointer;
    text-align: center;
    min-width: 140px;
}

.latar-belakang-container .tab-button:hover {
    background: #f1f3f5;
    border-color: #1a3a5f;
    color: #1a3a5f;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 58, 95, 0.1);
}

.latar-belakang-container .tab-button.active {
    background: #1a3a5f;
    color: white;
    border-color: #1a3a5f;
    box-shadow: 0 5px 15px rgba(26, 58, 95, 0.2);
}

.latar-belakang-container .content-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    overflow: hidden;
    margin-bottom: 30px;
    border: 1px solid #f0f0f0;
}

.latar-belakang-container .content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.latar-belakang-container .card-header-custom {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 20px;
    border-bottom: 1px solid #e9ecef;
}

.latar-belakang-container .card-body-custom {
    padding: 25px;
}

.latar-belakang-container .section-title-modern {
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
    margin-bottom: 25px;
    text-align: center;
    width: 100%;
}

.latar-belakang-container .section-title-modern::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #1a3a5f, #3d5a80);
    border-radius: 2px;
}

.latar-belakang-container .shareholder-card {
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.4s ease;
    height: 100%;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border: 1px solid #f0f0f0;
    position: relative;
}

.latar-belakang-container .shareholder-card:hover {
    transform: scale(1.05) translateY(-10px);
    box-shadow: 0 20px 40px rgba(26, 58, 95, 0.2);
    border-color: #1a3a5f;
}

.latar-belakang-container .shareholder-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1a3a5f, #3d5a80);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.latar-belakang-container .shareholder-card:hover::before {
    transform: scaleX(1);
}

.latar-belakang-container .shareholder-logo {
    padding: 30px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s ease;
}

.latar-belakang-container .shareholder-card:hover .shareholder-logo {
    background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
}

.latar-belakang-container .shareholder-logo img {
    transition: all 0.4s ease;
    filter: drop-shadow(0 5px 10px rgba(0, 0, 0, 0.1));
}

.latar-belakang-container .shareholder-card:hover .shareholder-logo img {
    transform: scale(1.1);
    filter: drop-shadow(0 8px 15px rgba(26, 58, 95, 0.3));
}

/* Bagan susunan pemegang saham: jangan pakai tinggi tetap agar gambar utuh. */
.latar-belakang-container .shareholder-card--diagram .shareholder-logo {
    height: auto;
    min-height: 0;
    padding: 18px;
}

.latar-belakang-container .shareholder-card--diagram .shareholder-logo img {
    width: 100%;
    max-width: 100%;
    max-height: none;
    height: auto;
    aspect-ratio: 714 / 498;
    object-fit: contain;
}

.latar-belakang-container .shareholder-card--diagram:hover {
    transform: translateY(-4px);
}

.latar-belakang-container .shareholder-card--diagram:hover .shareholder-logo img {
    transform: none;
}

.latar-belakang-container .shareholder-info {
    padding: 25px;
    background: white;
    text-align: center;
}

.latar-belakang-container .shareholder-info h3 {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #1a3a5f, #3d5a80);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.latar-belakang-container .shareholder-card:hover .shareholder-info h3 {
    transform: scale(1.1);
}

.latar-belakang-container .shareholder-info h5 {
    font-weight: 600;
    line-height: 1.6;
    margin-bottom: 15px;
    color: #333;
}

.latar-belakang-container .shareholder-info a {
    color: #0066ff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
}

.latar-belakang-container .shareholder-info a:hover {
    color: #0044cc;
    transform: translateY(-2px);
    text-decoration: underline;
}

.latar-belakang-container .counter {
    display: inline-block;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.5s ease;
}

.latar-belakang-container .counter.animate {
    opacity: 1;
    transform: scale(1);
}

.latar-belakang-container .oil-rig-icon {
    display: inline-block;
    width: 36px;
    height: 36px;
    margin-right: 10px;
    vertical-align: middle;
}

.latar-belakang-container .process-step {
    position: relative;
    padding-left: 50px;
    margin-bottom: 30px;
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px 20px 20px 60px;
    transition: all 0.3s ease;
    text-align: justify;
}

.latar-belakang-container .process-step:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.latar-belakang-container .process-step::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 25px;
    width: 30px;
    height: 30px;
    background: #1a3a5f;
    border-radius: 50%;
    z-index: 1;
}

.latar-belakang-container .process-step::after {
    content: '';
    position: absolute;
    left: 29px;
    top: 55px;
    width: 2px;
    height: calc(100% - 25px);
    background: #dee2e6;
    z-index: 0;
}

.latar-belakang-container .process-step:last-child::after {
    display: none;
}

.latar-belakang-container .process-number {
    position: absolute;
    left: 15px;
    top: 25px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 16px;
    z-index: 2;
}

.latar-belakang-container .process-step h5 {
    text-align: left;
    margin-bottom: 15px;
    color: #1a3a5f;
}

.latar-belakang-container .goal-item {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 15px;
    border-left: 4px solid #1a3a5f;
    transition: all 0.3s ease;
}

.latar-belakang-container .goal-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    background: #e9ecef;
}

.latar-belakang-container .business-type {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    text-align: justify;
}

.latar-belakang-container .business-type:hover {
    background: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.latar-belakang-container .business-type h5 {
    color: #1a3a5f;
    font-weight: 600;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    text-align: left;
}

.latar-belakang-container .business-type h5 i {
    margin-right: 10px;
    font-size: 24px;
}

.latar-belakang-container .business-type p {
    text-align: justify;
}

.latar-belakang-container .business-type ul {
    text-align: justify;
    padding-left: 20px;
}

.latar-belakang-container .image-container {
    overflow: hidden;
    border-radius: 10px;
    margin: 20px 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.latar-belakang-container .image-container img {
    transition: all 0.5s ease;
    width: 100%;
    height: auto;
}

.latar-belakang-container .image-container:hover img {
    transform: scale(1.05);
}

.latar-belakang-container .alert-custom {
    border-radius: 10px;
    padding: 20px;
    margin-top: 25px;
    border: none;
    text-align: justify;
}

.latar-belakang-container .alert-success-custom {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
    border-left: 4px solid #28a745;
}

.latar-belakang-container .alert-info-custom {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    color: #0c5460;
    border-left: 4px solid #17a2b8;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.latar-belakang-container .fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.latar-belakang-container .portfolio-container {
    position: relative;
    overflow: hidden;
}

.latar-belakang-container .portfolio-item {
    opacity: 1;
    transition: opacity 0.5s ease-in-out;
}

@media (max-width: 992px) {
    .latar-belakang-container .tab-button {
        min-width: 120px;
        font-size: 13px;
        padding: 10px 15px;
    }
}

@media (max-width: 768px) {
    .latar-belakang-container .tab-navigation {
        padding: 10px;
        position: relative;
        top: 0;
    }

    .latar-belakang-container .tab-button {
        display: block;
        width: 100%;
        margin: 8px 0;
        font-size: 15px;
        padding: 15px 20px;
        min-width: auto;
        border-radius: 10px;
        text-align: left;
        position: relative;
        padding-left: 55px;
    }

    .latar-belakang-container .tab-button i {
        position: absolute;
        left: 20px;
        top: 50%;
        transform: translateY(-50%);
        font-size: 18px;
        width: 20px;
        text-align: center;
    }

    .latar-belakang-container .content-card {
        margin-bottom: 20px;
    }

    .latar-belakang-container .card-body-custom {
        padding: 20px;
    }

    .latar-belakang-container .process-step {
        padding: 15px 15px 15px 50px;
        margin-bottom: 20px;
    }

    .latar-belakang-container .process-step::before {
        width: 25px;
        height: 25px;
        left: 12px;
        top: 20px;
    }

    .latar-belakang-container .process-step::after {
        left: 24px;
        top: 45px;
    }

    .latar-belakang-container .process-number {
        width: 25px;
        height: 25px;
        left: 12px;
        top: 20px;
        font-size: 14px;
    }

    .latar-belakang-container .shareholder-logo {
        height: 200px;
        padding: 20px;
    }

    .latar-belakang-container .shareholder-logo img {
        max-width: 160px;
        max-height: 160px;
    }

    .latar-belakang-container h1 {
        font-size: 24px;
    }

    .latar-belakang-container h4 {
        font-size: 18px;
    }

    .latar-belakang-container h5 {
        font-size: 16px;
    }
}

@media (max-width: 576px) {
    .latar-belakang-container .container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .latar-belakang-container .tab-button {
        font-size: 14px;
        padding: 12px 15px;
        padding-left: 50px;
    }

    .latar-belakang-container .tab-button i {
        left: 18px;
        font-size: 16px;
    }

    .latar-belakang-container .card-body-custom {
        padding: 15px;
    }

    .latar-belakang-container .process-step {
        padding: 12px 12px 12px 45px;
    }

    .latar-belakang-container .process-step::before {
        width: 20px;
        height: 20px;
        left: 10px;
        top: 18px;
    }

    .latar-belakang-container .process-step::after {
        left: 19px;
        top: 38px;
    }

    .latar-belakang-container .process-number {
        width: 20px;
        height: 20px;
        left: 10px;
        top: 18px;
        font-size: 12px;
    }

    .latar-belakang-container .shareholder-logo {
        height: 180px;
        padding: 15px;
    }

    .latar-belakang-container .shareholder-logo img {
        max-width: 140px;
        max-height: 140px;
    }
}

@media (max-width: 768px) {
    .latar-belakang-container .tab-button.active::after {
        content: '';
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        width: 8px;
        height: 8px;
        background: white;
        border-radius: 50%;
    }
}

.latar-belakang-container .regulation-list {
    list-style: none;
    padding-left: 0.5rem;
    margin: 0;
}

.latar-belakang-container .regulation-list li {
    position: relative;
    padding-left: 1.8rem;
    margin-bottom: 0.75rem;
    line-height: 1.6;
    text-align: justify;
    color: #333;
}

.latar-belakang-container .regulation-list li::before {
    content: "\f02d";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 0.1rem;
    color: #1a3a5f;
    font-size: 1rem;
}

.latar-belakang-container .regulation-list li:last-child {
    margin-bottom: 0;
}

.latar-belakang-container .regulation-list strong {
    color: #1a3a5f;
    font-weight: 700;
}

/* ===== DARK THEME — about (append-only, html[data-theme="dark"]) ===== */
/* 49 hex -> token/varian gelap. File semula 0 var; gunakan var global RPM. */
html[data-theme="dark"] {
  --about-bg: #070D1A;
  --about-card: #13233B;
  --about-line: #24344D;
  --about-text: #E8EEF5;
  --about-muted: #A9B6C5;
  --about-navy: #7AA9D6;
}

/* --- Tab navigation --- */
html[data-theme="dark"] .latar-belakang-container .tab-navigation { background: #0F1D33; box-shadow: 0 5px 15px rgba(0, 0, 0, .5); }
html[data-theme="dark"] .latar-belakang-container .tab-button { background: #13233B; border-color: var(--about-line); color: #B8C4D4; }
html[data-theme="dark"] .latar-belakang-container .tab-button:hover { background: #1A2A44; border-color: var(--about-navy); color: #FFFFFF; box-shadow: 0 5px 15px rgba(0, 0, 0, .5); }
html[data-theme="dark"] .latar-belakang-container .tab-button.active { background: #1A365D; border-color: #1A365D; color: #fff; }

/* --- Content card --- */
html[data-theme="dark"] .latar-belakang-container .content-card { background: var(--about-card); border-color: var(--about-line); box-shadow: 0 10px 30px rgba(0, 0, 0, .5); }
html[data-theme="dark"] .latar-belakang-container .content-card:hover { box-shadow: 0 15px 40px rgba(0, 0, 0, .6); }
html[data-theme="dark"] .latar-belakang-container .card-header-custom { background: linear-gradient(135deg, #0F1D33 0%, #1A2A44 100%); border-bottom-color: var(--about-line); }
html[data-theme="dark"] .latar-belakang-container .section-title-modern::after,
html[data-theme="dark"] .latar-belakang-container .shareholder-card::before { background: linear-gradient(90deg, #2A6BA8, #7AA9D6); }

/* --- Shareholder --- */
html[data-theme="dark"] .latar-belakang-container .shareholder-card { border-color: var(--about-line); box-shadow: 0 8px 25px rgba(0, 0, 0, .5); background: var(--about-card); }
html[data-theme="dark"] .latar-belakang-container .shareholder-card:hover { border-color: #2A6BA8; box-shadow: 0 20px 40px rgba(0, 0, 0, .6); }
html[data-theme="dark"] .latar-belakang-container .shareholder-logo { background: linear-gradient(135deg, #0F1D33 0%, #1A2A44 100%); }
html[data-theme="dark"] .latar-belakang-container .shareholder-card:hover .shareholder-logo { background: linear-gradient(135deg, #1A2A44 0%, #24344D 100%); }
html[data-theme="dark"] .latar-belakang-container .shareholder-info { background: var(--about-card); }
html[data-theme="dark"] .latar-belakang-container .shareholder-info h3 { background: linear-gradient(135deg, #7AA9D6, #A9CCEB); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
html[data-theme="dark"] .latar-belakang-container .shareholder-info h5 { color: #E8EEF5; }
html[data-theme="dark"] .latar-belakang-container .shareholder-info a { color: #7AA9D6; }
html[data-theme="dark"] .latar-belakang-container .shareholder-info a:hover { color: #A9CCEB; }

/* --- Process / goal / business --- */
html[data-theme="dark"] .latar-belakang-container .process-step { background: #0F1D33; }
html[data-theme="dark"] .latar-belakang-container .process-step:hover { background: #1A2A44; }
html[data-theme="dark"] .latar-belakang-container .process-step::before { background: #1A4A7A; }
html[data-theme="dark"] .latar-belakang-container .process-step::after { background: #24344D; }
html[data-theme="dark"] .latar-belakang-container .process-step h5 { color: #E8EEF5; }
html[data-theme="dark"] .latar-belakang-container .goal-item { background: #0F1D33; border-left-color: #2A6BA8; }
html[data-theme="dark"] .latar-belakang-container .goal-item:hover { background: #1A2A44; box-shadow: 0 5px 15px rgba(0, 0, 0, .5); }
html[data-theme="dark"] .latar-belakang-container .business-type { background: #0F1D33; border-color: var(--about-line); }
html[data-theme="dark"] .latar-belakang-container .business-type:hover { background: #13233B; box-shadow: 0 5px 20px rgba(0, 0, 0, .5); }
html[data-theme="dark"] .latar-belakang-container .business-type h5 { color: #E8EEF5; }

/* --- Image / alert / regulation --- */
html[data-theme="dark"] .latar-belakang-container .image-container { box-shadow: 0 5px 15px rgba(0, 0, 0, .5); }
html[data-theme="dark"] .latar-belakang-container .image-container img { filter: none; }
html[data-theme="dark"] .latar-belakang-container .alert-success-custom { background: linear-gradient(135deg, #0F2A1F 0%, #143A2A 100%); color: #7CE3A8; border-left-color: #2ECC71; }
html[data-theme="dark"] .latar-belakang-container .alert-info-custom { background: linear-gradient(135deg, #0F2535 0%, #14344A 100%); color: #8ECAE6; border-left-color: #38B2AC; }
html[data-theme="dark"] .latar-belakang-container .regulation-list li { color: #B8C4D4; }
html[data-theme="dark"] .latar-belakang-container .regulation-list li::before { color: var(--about-navy); }
html[data-theme="dark"] .latar-belakang-container .regulation-list strong { color: #E8EEF5; }
/* ===== Tambahan dark: section-title-modern + text-muted (append-only) ===== */
html[data-theme="dark"] .latar-belakang-container .section-title-modern,
html[data-theme="dark"] .section-title-modern.text-secondary { color: #E9B949 !important; }
html[data-theme="dark"] .latar-belakang-container .section-title-modern::after { background: linear-gradient(90deg, #E9B949, #F5C518) !important; }
html[data-theme="dark"] .latar-belakang-container .text-muted,
html[data-theme="dark"] .text-muted { color: #C6D0DE !important; }