:root {
    --bg-primary: #0a0f14;
    --bg-secondary: #111820;
    --bg-card: #1a2230;
    --bg-input: #0d1520;
    --accent: #1db954;
    --accent-hover: #1ed760;
    --accent-dim: rgba(29, 185, 84, 0.15);
    --text-primary: #e8e8e8;
    --text-secondary: #8b95a5;
    --text-muted: #5a6577;
    --border: #2a3545;
    --danger: #e74c3c;
    --warning: #f39c12;
    --success: #1db954;
    --info: #3498db;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 4px 20px rgba(0,0,0,0.3);
    --font-main: 'Cairo', 'Segoe UI', sans-serif;
    --font-arabic: 'Amiri', 'Cairo', serif;
}

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

html { font-size: 15px; }

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.85; }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text-primary); border-color: var(--text-secondary); }
.btn-block { width: 100%; }
.btn-lg { padding: 14px 28px; font-size: 1.1rem; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-weight: 600;
}
.form-input, .form-select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}
.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-select { appearance: auto; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-range {
    width: calc(100% - 50px);
    vertical-align: middle;
    accent-color: var(--accent);
}

.checkbox-group { display: flex; flex-wrap: wrap; gap: 10px; }
.checkbox-label {
    display: flex; align-items: center; gap: 6px;
    font-size: 0.88rem; color: var(--text-secondary);
    cursor: pointer;
}
.checkbox-label input[type="checkbox"] { accent-color: var(--accent); }

.error-message {
    background: rgba(231,76,60,0.15);
    color: var(--danger);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.text-muted { color: var(--text-muted); }
.text-danger { color: var(--danger); }

/* Landing */
.landing-page {
    display: flex;
    align-items: center;
    justify-content: center;
}
.landing-container {
    text-align: center;
    padding: 40px 20px;
    max-width: 900px;
    margin: 0 auto;
}
.landing-icon { color: var(--accent); margin-bottom: 20px; }
.landing-hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--accent), #4ade80);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.landing-subtitle { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 6px; }
.landing-subtitle-ar { font-family: var(--font-arabic); font-size: 1.3rem; color: var(--text-muted); margin-bottom: 40px; }
.landing-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 40px; }
.feature-card {
    background: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
.feature-icon { font-size: 2rem; margin-bottom: 10px; }
.feature-card h3 { font-size: 1rem; margin-bottom: 6px; color: var(--accent); }
.feature-card p { font-size: 0.85rem; color: var(--text-secondary); }

/* Login */
.login-page { display: flex; align-items: center; justify-content: center; }
.login-container { width: 100%; max-width: 420px; padding: 20px; }
.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 30px;
    box-shadow: var(--shadow);
}
.login-header { text-align: center; margin-bottom: 30px; }
.login-header h1 {
    font-size: 1.6rem; color: var(--accent); margin-bottom: 4px;
}
.login-header p { font-family: var(--font-arabic); color: var(--text-muted); font-size: 1.1rem; }

/* Topbar */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.topbar-brand a {
    font-size: 1.15rem; font-weight: 700; color: var(--accent);
}
.topbar-actions { display: flex; gap: 8px; align-items: center; }

/* Dashboard */
.dashboard-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding: 24px;
    max-width: 1400px;
    margin: 0 auto;
}
@media (max-width: 900px) {
    .dashboard-layout { grid-template-columns: 1fr; }
}

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}
.panel-title {
    font-size: 1.15rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
    color: var(--accent);
}
.panel-form { max-height: calc(100vh - 100px); overflow-y: auto; }
.panel-jobs { max-height: calc(100vh - 100px); overflow-y: auto; }

/* Background grid */
.bg-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 8px;
    max-height: 300px;
    overflow-y: auto;
    padding: 4px;
}
.bg-item {
    position: relative;
    aspect-ratio: 9/16;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    overflow: hidden;
    background: var(--bg-input);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    color: var(--text-muted);
    text-align: center;
    padding: 4px;
    transition: border-color 0.2s;
}
.bg-item:hover { border-color: var(--text-secondary); }
.bg-item.selected { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-dim); }
.bg-item.unavailable { opacity: 0.4; }
.bg-item-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.7);
    padding: 2px 4px;
    font-size: 0.6rem;
}

/* Jobs */
.jobs-list { display: flex; flex-direction: column; gap: 10px; }
.job-card {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px;
    transition: border-color 0.2s;
}
.job-card:hover { border-color: var(--accent); }
.job-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.job-card-body { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 8px; }
.job-card-actions { display: flex; gap: 8px; }
.job-meta { font-size: 0.85rem; color: var(--text-secondary); }
.job-date { font-size: 0.8rem; color: var(--text-muted); }

.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}
.status-pending { background: rgba(52,152,219,0.2); color: var(--info); }
.status-fetching { background: rgba(243,156,18,0.2); color: var(--warning); }
.status-rendering { background: rgba(155,89,182,0.2); color: #9b59b6; }
.status-muxing { background: rgba(29,185,84,0.2); color: var(--success); }
.status-completed { background: rgba(29,185,84,0.3); color: var(--success); }
.status-failed { background: rgba(231,76,60,0.2); color: var(--danger); }

.progress-bar {
    background: var(--bg-primary);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    flex: 1;
    margin: 0 8px;
}
.progress-bar.lg { height: 14px; margin: 16px 0; }
.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), #4ade80);
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* Job detail */
.job-detail-container {
    max-width: 900px;
    margin: 24px auto;
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.info-item { display: flex; flex-direction: column; gap: 4px; }
.info-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; }
.info-item.error { grid-column: 1 / -1; color: var(--danger); }

.preview-video {
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius);
    margin: 0 auto;
    display: block;
}
.preview-actions { display: flex; gap: 12px; justify-content: center; margin-top: 16px; }

.job-logs {
    max-height: 400px;
    overflow-y: auto;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    padding: 12px;
}
.log-entries { display: flex; flex-direction: column; gap: 4px; }
.log-entry {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.8rem;
    padding: 4px 8px;
    border-radius: 3px;
    display: flex;
    gap: 10px;
    direction: ltr;
    text-align: left;
}
.log-time { color: var(--text-muted); min-width: 80px; }
.log-level { min-width: 45px; font-weight: 600; text-transform: uppercase; }
.log-info .log-level { color: var(--info); }
.log-warn .log-level { color: var(--warning); }
.log-error .log-level { color: var(--danger); }
.log-msg { color: var(--text-secondary); word-break: break-all; }

/* Admin */
.admin-container {
    max-width: 900px;
    margin: 24px auto;
    padding: 0 24px;
}
.admin-section { margin-bottom: 24px; }
.admin-section h3 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* RTL adjustments */
[dir="ltr"] body { direction: ltr; text-align: left; }
[dir="ltr"] .form-input, [dir="ltr"] .form-select { text-align: left; }