/* ==========================================================================
   FORUM ASN INKLUSIF - MAIN STYLESHEET (INTEGRATED)
   Standard: WCAG 2.1 AA | Features: Dark Mode, Text Resizer, Sticky Nav
   ========================================================================== */

/* 1. CSS VARIABLES (THEME CONFIG) */
:root {
    /* --- LIGHT MODE (DEFAULT - BIRU ASN) --- */
    --header-bg: #002b5c;        /* Navy Blue Gelap */
    --header-text: #ffffff;      /* Teks Putih */
    --primary-color: #002b5c;    /* Judul Utama */
    --accent-color: #007acc;     /* Link & Tombol (Biru Terang) */
    --highlight: #00b4d8;        /* Cyan - Aksen Modern */
    --bg-color: #ffffff;         /* Background Putih */
    --text-color: #222222;       /* Teks Hitam Pekat (Kontras Tinggi) */
    --card-bg: #f8f9fa;          /* Background Kartu (Abu sangat muda) */
    --border-color: #dde1e6;     /* Garis Batas */
    --button-text: #ffffff;      
    --focus-ring: #ff9900;       /* Fokus Oranye (Sangat terlihat) */
}

[data-theme="dark"] {
    /* --- DARK MODE (HIGH CONTRAST) --- */
    --header-bg: #000000;        /* Hitam Total */
    --header-text: #ffffff;
    --primary-color: #ffffff;    /* Judul Putih */
    --accent-color: #4db8ff;     /* Cyan Terang (Agar terbaca di hitam) */
    --highlight: #ffd700;        /* Kuning Emas (Highlight Dark Mode) */
    --bg-color: #121212;         /* Abu Gelap (Mencegah mata lelah) */
    --text-color: #e0e0e0;       /* Teks Putih Gading */
    --card-bg: #1e1e1e;          
    --border-color: #333333;
    --button-text: #000000;      /* Teks tombol hitam agar kontras dgn Cyan */
}

/* 2. BASE STYLES & TYPOGRAPHY */
* { box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 100%; /* Basis untuk Text Resizer */
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Aksesibilitas Link & Fokus */
a { color: var(--accent-color); text-decoration: none; transition: color 0.2s; }
a:hover { text-decoration: underline; text-underline-offset: 4px; }
a:focus, button:focus { 
    outline: 3px solid var(--focus-ring); 
    outline-offset: 2px; 
    border-radius: 2px;
}

h1, h2, h3, h4, h5, h6 { color: var(--primary-color); margin-top: 1.5em; margin-bottom: 0.5em; }

/* Skip Link (Hidden until focused) */
.skip-link {
    position: absolute;
    top: -50px; left: 0;
    background: var(--focus-ring);
    color: #000;
    padding: 12px 20px;
    z-index: 9999;
    font-weight: bold;
    transition: top 0.2s;
    text-decoration: none;
}
.skip-link:focus { top: 0; }

/* 3. HEADER & NAV (STICKY MODERN) */
header {
    background: var(--header-bg);
    color: var(--header-text);
    padding: 10px 0;
    border-bottom: 4px solid var(--accent-color);
    position: sticky; /* Menu nempel saat scroll */
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
    padding: 0 15px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.brand-wrapper { display: flex; align-items: center; gap: 15px; }
.brand-wrapper img {
    background: white; /* Kotak putih di belakang logo agar selalu kontras */
    padding: 4px;
    border-radius: 50%;
    width: 55px; height: 55px; object-fit: contain;
    border: 2px solid rgba(255,255,255,0.2);
}

.brand-title h1 { margin: 0; font-size: 1.2rem; color: #fff; text-transform: uppercase; letter-spacing: 0.5px; }
.brand-subtitle { display: block; font-size: 0.85rem; opacity: 0.9; color: #ddd; font-weight: normal; }

/* Menu Navigasi */
.nav-controls { 
    display: flex; 
    align-items: center; 
    gap: 15px; 
    flex-wrap: wrap;
}

#nav-menu {
    list-style: none; padding: 0; margin: 0;
    display: flex; gap: 20px;
}
#nav-menu a { color: #fff; font-weight: 500; font-size: 0.95rem; opacity: 0.9; }
#nav-menu a:hover, #nav-menu a.active { 
    color: #ffeb3b; /* Kuning Emas */
    opacity: 1;
    text-decoration: none;
    border-bottom: 2px solid #ffeb3b;
}

/* Tombol Tools (A+, Dark Mode, Lang) */
.nav-controls button {
    background: transparent; 
    border: 1px solid rgba(255,255,255,0.4); 
    color: #fff;
    padding: 4px 10px; 
    border-radius: 4px; 
    cursor: pointer; 
    font-weight: bold;
    font-size: 0.9em;
    min-width: 35px;
}
.nav-controls button:hover { background: rgba(255,255,255,0.15); border-color: #fff; }

/* 4. CONTENT COMPONENTS */
.hero {
    text-align: center; 
    padding: 4rem 1rem;
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(0, 122, 204, 0.05) 100%);
    border-radius: 12px; margin-bottom: 3rem; margin-top: 2rem;
    border: 1px solid var(--border-color);
}

.button-cta {
    display: inline-block; 
    background: var(--accent-color);
    color: var(--button-text); 
    padding: 12px 28px;
    border-radius: 50px; 
    font-weight: bold; 
    margin-top: 15px;
    transition: transform 0.2s, box-shadow 0.2s;
}
.button-cta:hover {
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Card Berita */
#berita ul li, .grid-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: transform 0.2s;
}
#berita ul li:hover { transform: translateY(-2px); border-color: var(--accent-color); }

/* Images & Caption */
img { max-width: 100%; height: auto; }
figcaption { text-align: center; font-style: italic; font-size: 0.9em; opacity: 0.8; margin-top: 5px; }

/* 5. FOOTER */
footer {
    background: var(--header-bg); 
    color: #fff;
    padding: 3rem 0; margin-top: 5rem; 
    text-align: center;
    border-top: 4px solid var(--accent-color);
}
footer a { color: #4db8ff; font-weight: bold; }
footer hr { opacity: 0.2; }

/* 6. UTILITY */
.visually-hidden { display: none !important; }

/* Responsive HP */
@media (max-width: 768px) {
    .navbar { flex-direction: column; align-items: flex-start; }
    .nav-controls { width: 100%; justify-content: space-between; margin-top: 15px; flex-wrap: wrap; }
    #nav-menu { gap: 15px; font-size: 0.9em; flex-wrap: wrap; width: 100%; margin-bottom: 10px; }
    .brand-wrapper { width: 100%; }
}