/* ======================================================
   GLOBAL THEME & RESET
====================================================== */
:root {
    --accent: #0077b6;
    --accent-dark: #023e8a;
    --bg: #f1f5f9;
    --card: #ffffff;
    --text: #1a1a1a;
    --muted: #6b7280;
    --bg-dark: #0f172a;
    --card-dark: #1e293b;
    --text-dark: #e2e8f0;
    --muted-dark: #94a3b8;
    --radius: 14px;
}

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

body {
    font-family: "Inter", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    transition: background-color 0.3s, color 0.3s;
}

body.dark {
    background: var(--bg-dark);
    color: var(--text-dark);
}

.hidden {
    display: none !important;
}

/* ======================================================
   HEADER STYLES
====================================================== */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

body.dark header {
    background: rgba(30, 41, 59, 0.95);
    border-bottom-color: #334155;
}

header .brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

header img {
    width: 55px;
    height: 55px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--accent);
}

header .brand h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--accent-dark);
    font-weight: 600;
}

body.dark header .brand h3 {
    color: var(--text-dark);
}

header .brand .sub {
    margin: 0;
    font-size: .85rem;
    color: var(--accent);
    font-weight: 400;
}

nav {
    display: flex;
    gap: 15px;
}

nav a {
    text-decoration: none;
    color: var(--accent-dark);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 6px 12px;
    border-radius: 6px;
    transition: all 0.2s;
}

body.dark nav a {
    color: var(--text-dark);
}

nav a:hover {
    background: rgba(0, 119, 182, 0.1);
    color: var(--accent);
}

nav a.active {
    background: var(--accent);
    color: white;
}

/* ======================================================
   HERO BANNER
====================================================== */
.hero-banner {
    padding: 45px 20px;
    text-align: center;
    background: linear-gradient(135deg, #0077b6, #0096c7);
    color: white;
    margin-bottom: 30px;
}

.hero-banner h2 {
    font-size: 2.2rem;
    margin: 0 0 10px;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero-banner p {
    font-size: 1rem;
    opacity: 0.95;
    margin: 0;
}

/* ======================================================
   CONTAINER & SECTION TITLE
====================================================== */
.container-max {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.section-title {
    margin: 25px 0 15px;
    font-size: 1.4rem;
    color: var(--accent-dark);
    font-weight: 600;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--accent);
}

body.dark .section-title {
    color: var(--text-dark);
    border-bottom-color: var(--accent);
}

/* ======================================================
   CARD CONTAINER & CARD STYLES - MOBILE FIRST
====================================================== */

/* MOBILE DEFAULT: 2 GRID */
.card-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 15px 0 25px;
    width: 100%;
}

.card {
    background: var(--card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 270px;
    border: 1px solid rgba(0,0,0,0.05);
}

body.dark .card {
    background: var(--card-dark);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    border-color: rgba(255,255,255,0.05);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.card img {
    width: 100%;
    height: 130px;
    object-fit: cover;
    display: block;
}

.card-content {
    padding: 12px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-title {
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.3;
    margin: 0 0 8px;
    color: var(--text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

body.dark .card-title {
    color: var(--text-dark);
}

.card-excerpt {
    font-size: 0.85rem;
    line-height: 1.4;
    color: var(--muted);
    margin-bottom: 10px;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

body.dark .card-excerpt {
    color: var(--muted-dark);
}

.card-btn-read {
    background: var(--accent);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    align-self: flex-start;
    margin-top: auto;
}

.card-btn-read:hover {
    background: var(--accent-dark);
}

/* ======================================================
   PAGINATION
====================================================== */
.pagination-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin: 20px 0 30px;
}

.card-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 80px;
}

.card-btn:hover:not([disabled]) {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

.card-btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
}

.page {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-dark);
    padding: 0 10px;
}

body.dark .page {
    color: var(--text-dark);
}

/* ======================================================
   FULLSCREEN ARTICLE VIEW
====================================================== */
#full-article {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--card);
    z-index: 1000;
    overflow-y: auto;
    display: none;
}

body.fullview #full-article {
    display: block;
}

body.dark #full-article {
    background: var(--bg-dark);
}

.reader-wrap {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
}

.toolbox {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    padding: 10px 0;
    border-bottom: 1px solid #e5e7eb;
    flex-wrap: wrap;
    justify-content: center;
    position: sticky;
    top: 0;
    background: var(--card);
    z-index: 10;
}

body.dark .toolbox {
    background: var(--card-dark);
    border-bottom-color: #334155;
}

.tool-btn, .back-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s;
}

.tool-btn:hover, .back-btn:hover {
    background: var(--accent-dark);
}

#full-title {
    font-size: 1.8rem;
    margin: 0 0 10px;
    color: var(--text);
    line-height: 1.3;
}

body.dark #full-title {
    color: var(--text-dark);
}

#article-date {
    display: block;
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

body.dark #article-date {
    color: var(--muted-dark);
}

#full-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 25px;
}

#full-content {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text);
}

body.dark #full-content {
    color: var(--text-dark);
}

#full-content p {
    margin-bottom: 1.2rem;
}

#full-content h2, #full-content h3 {
    margin: 1.5rem 0 1rem;
    color: var(--accent-dark);
}

body.dark #full-content h2,
body.dark #full-content h3 {
    color: var(--accent);
}

#nav-artikel {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
}

body.dark #nav-artikel {
    border-top-color: #334155;
}

.nav-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 120px;
}

.nav-btn:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

/* ======================================================
   FOOTER
====================================================== */
footer {
    background: #003566;
    color: white;
    text-align: center;
    padding: 25px 15px;
    margin-top: 40px;
    font-size: 0.9rem;
}

body.dark footer {
    background: #0f172a;
}

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

/* Tablet: 769px - 1023px */
@media (min-width: 769px) {
    header {
        padding: 15px 30px;
    }
    
    .hero-banner {
        padding: 50px 30px;
    }
    
    .hero-banner h2 {
        font-size: 2.5rem;
    }
    
    .card-container {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
        padding: 20px 0 30px;
    }
    
    .card {
        min-height: 300px;
    }
    
    .card img {
        height: 150px;
    }
    
    .card-title {
        font-size: 1rem;
    }
    
    .card-excerpt {
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
}

/* Desktop: 1024px ke atas */
@media (min-width: 1024px) {
    .card-container {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    
    .card {
        min-height: 320px;
    }
    
    .card img {
        height: 160px;
    }
    
    .container-max {
        padding: 0 20px;
    }
    
    .reader-wrap {
        padding: 30px 20px;
    }
    
    #full-title {
        font-size: 2.2rem;
    }
}

/* Layar sangat kecil: di bawah 375px */
@media (max-width: 374px) {
    .card-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .card {
        min-height: 250px;
    }
    
    .card img {
        height: 120px;
    }
    
    nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }
    
    nav a {
        font-size: 0.85rem;
        padding: 5px 10px;
    }
    
    .hero-banner h2 {
        font-size: 1.5rem;
    }
}

/* Untuk header di mobile */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
        padding: 10px 15px;
    }
    
    header .brand {
        justify-content: center;
    }
    
    nav {
        width: 100%;
        justify-content: center;
    }
    
    .hero-banner {
        padding: 30px 15px;
        margin-bottom: 20px;
    }
    
    .hero-banner h2 {
        font-size: 1.6rem;
    }
    
    .hero-banner p {
        font-size: 0.9rem;
    }
    
    /* Pastikan 2 grid aktif di mobile */
    .card-container {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    
    /* Responsive toolbox di full article */
    .toolbox {
        padding: 8px;
        gap: 5px;
    }
    
    .tool-btn, .back-btn {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    .reader-wrap {
        padding: 15px;
    }
    
    #full-title {
        font-size: 1.5rem;
    }
}

/* Animation untuk smooth transition */
.card {
    animation: fadeInUp 0.3s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading state */
.card.loading {
    position: relative;
    overflow: hidden;
}

.card.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}