/* ================= المتغيرات الأساسية لواجهة الباني ================= */
:root {
    --bg-dark: #0f172a;
    --bg-panel: #1e293b;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --accent: #10b981;
    --accent-hover: #059669;
    --copper: #fbbf24;
    --border: #334155;
    --danger: #ef4444;
    --info: #3b82f6;
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

body {
    margin: 0;
    font-family: 'Tajawal', sans-serif;
    background: var(--bg-dark);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* ================= الشريط العلوي (Top Header) ================= */
.top-header {
    background: var(--bg-panel);
    padding: 12px 25px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 20;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-brand h1 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-brand .subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-badge {
    font-size: 0.8rem;
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent);
    padding: 4px 10px;
    border-radius: 12px;
    transition: 0.3s;
    font-weight: 700;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.action-buttons {
    display: flex;
    gap: 8px;
    align-items: center;
}

.btn {
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-family: inherit;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: 0.2s;
    font-size: 0.85rem;
}

.btn-primary {
    background: var(--accent);
    color: #020617;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--info);
    color: white;
}

.btn-secondary:hover {
    background: #2563eb;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--copper);
    color: var(--copper);
    background: rgba(251, 191, 36, 0.05);
}

.btn-ghost {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 8px;
    cursor: pointer;
}

.btn-ghost:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
}

/* ================= محدد السمات (Theme Switcher) ================= */
.theme-selector {
    background: var(--bg-dark);
    color: var(--text-main);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    outline: none;
}

.theme-selector:focus {
    border-color: var(--accent);
}

/* ================= إعدادات المشروع (Project Settings Modal) ================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.active {
    display: flex;
}

.settings-modal {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 25px;
    width: 450px;
    box-shadow: var(--shadow-lg);
}

.settings-modal h2 {
    margin-top: 0;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-main);
    border-radius: 6px;
    font-family: inherit;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="%2394a3b8" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');
    background-repeat: no-repeat;
    background-position: left 12px center;
    background-size: 16px;
    padding-left: 36px;
}

.form-group select option {
    background: var(--bg-panel);
    color: var(--text-main);
    padding: 10px;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.1);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 25px;
}

/* ================= حاوية المعاينة ================= */
.preview-frame-container {
    flex: 1;
    padding: 0;
    overflow: hidden;
    position: relative;
    background: #020617;
    min-height: 0;
}

#previewFrame {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    display: block;
}