:root {
    --bg-main: #0b0f19;
    --bg-card: #131a2a;
    --bg-input: #0e1422;
    --border-color: #232d45;
    --text-primary: #f1f5f9;
    --text-muted: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-primary-hover: #2563eb;
    --accent-green: #10b981;
    --accent-green-hover: #059669;
    --accent-red: #ef4444;
    --accent-amber: #f59e0b;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: 'Cairo', 'Inter', sans-serif;
    line-height: 1.6;
    min-height: 100vh;
}

html[dir="ltr"] body {
    font-family: 'Inter', 'Cairo', sans-serif;
}

.app-container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 20px;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    padding: 16px 24px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 15px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #10b981, #3b82f6);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.brand h1 {
    font-size: 1.25rem;
    font-weight: 800;
    display: inline-block;
    margin-inline-end: 8px;
}

.badge-pro {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 700;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-pill.connected {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-pill.disconnected {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-pill.connecting {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 18px 22px;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    display: block;
    margin-bottom: 6px;
}

.stat-card h2 {
    font-size: 1.75rem;
    font-weight: 800;
}

/* Main Grid */
.main-grid {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 24px;
}

@media (max-width: 960px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
}

.column {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.card-header.space-between {
    justify-content: space-between;
}

.card-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
}

.card-body {
    padding: 20px;
}

.center-box {
    text-align: center;
    padding: 28px 20px;
}

/* Tabs */
.tab-buttons {
    display: flex;
    gap: 4px;
    background: var(--bg-input);
    padding: 3px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.tab-btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    padding: 5px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn.active {
    background: var(--accent-primary);
    color: #fff;
}

/* QR & Phone Connection */
.qr-box img {
    width: 200px;
    height: 200px;
    background: #fff;
    padding: 10px;
    border-radius: 10px;
    margin-bottom: 12px;
}

.pairing-code-display {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 4px;
    background: var(--bg-input);
    color: var(--accent-green);
    border: 2px dashed var(--accent-green);
    padding: 14px;
    border-radius: 12px;
    direction: ltr;
    display: inline-block;
    margin: 10px 0;
}

.connected-box .user-avatar {
    width: 56px;
    height: 56px;
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin: 0 auto 12px;
}

.connected-box h4 {
    font-size: 1.15rem;
    margin-bottom: 4px;
}

.connected-box p {
    margin-bottom: 16px;
}

/* Groups List */
.groups-toolbar {
    margin-bottom: 14px;
}

input[type="text"], textarea {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 14px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

input[type="text"]:focus, textarea:focus {
    border-color: var(--accent-primary);
}

.select-actions {
    display: flex;
    gap: 14px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.groups-list {
    max-height: 360px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-input);
}

.group-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background 0.15s;
}

.group-item:last-child {
    border-bottom: none;
}

.group-item:hover {
    background: rgba(255, 255, 255, 0.03);
}

.group-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.group-left input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-green);
    cursor: pointer;
}

.group-name {
    font-weight: 600;
    font-size: 0.95rem;
    display: block;
}

.group-meta {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.admin-tag {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    font-size: 0.72rem;
    padding: 2px 8px;
    border-radius: 6px;
    font-weight: 600;
}

.empty-state {
    padding: 36px 20px;
    text-align: center;
    color: var(--text-muted);
}

/* Scheduler */
.interval-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.radio-card {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    text-align: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.radio-card:has(input:checked) {
    border-color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.12);
    color: #60a5fa;
}

.next-run-box {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.25);
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.88rem;
    display: flex;
    justify-content: space-between;
}

/* Buttons */
button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.92rem;
    padding: 11px 18px;
    transition: all 0.2s;
}

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

.btn-success {
    background: var(--accent-green);
    color: #fff;
}
.btn-success:hover { background: var(--accent-green-hover); }

.btn-danger {
    background: var(--accent-red);
    color: #fff;
}

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

.btn-text {
    background: transparent;
    color: var(--accent-primary);
    padding: 4px 6px;
    font-size: 0.82rem;
}

.btn-sm {
    padding: 7px 12px;
    font-size: 0.82rem;
}

.full-width { width: 100%; }

.action-row {
    display: flex;
    gap: 12px;
    margin-top: 14px;
}

.action-row button {
    flex: 1;
}

/* Logs Table */
.table-wrapper {
    max-height: 260px;
    overflow-y: auto;
}

.logs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.logs-table th, .logs-table td {
    padding: 10px 12px;
    text-align: start;
    border-bottom: 1px solid var(--border-color);
}

.logs-table th {
    color: var(--text-muted);
    font-weight: 600;
}

/* Utilities */
.hidden { display: none !important; }
.text-green { color: var(--accent-green) !important; }
.text-red { color: var(--accent-red) !important; }
.text-amber { color: var(--accent-amber) !important; }
.text-muted { color: var(--text-muted); }
.field-label { display: block; margin-bottom: 8px; font-weight: 600; font-size: 0.9rem; }
.mb-10 { margin-bottom: 10px; }
.mb-15 { margin-bottom: 15px; }
.mt-10 { margin-top: 10px; }
.mt-15 { margin-top: 15px; }
.center-text { text-align: center; }

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    left: 24px;
    background: #1e293b;
    color: #fff;
    padding: 12px 20px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 25px rgba(0,0,0,0.4);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 999;
}
.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* Authentication and transparent broadcast progress */
.login-screen { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.login-card { width: min(100%, 440px); background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px; padding: 30px; display: flex; flex-direction: column; gap: 16px; text-align: center; }
.login-logo { margin: 0 auto; }
.login-card h2 { font-size: 1.25rem; }
.login-card input { width: 100%; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: 10px; padding: 12px 14px; color: var(--text-primary); }
.login-card button { min-height: 42px; }
.login-card code { color: #93c5fd; direction: ltr; display: inline-block; }
.login-error { min-height: 1.3em; }
.connection-error { max-width: 100%; margin: 8px auto 12px; font-size: 0.85rem; overflow-wrap: anywhere; }
.broadcast-progress { margin-top: 16px; border: 1px solid var(--border-color); background: var(--bg-input); padding: 14px; border-radius: 10px; }
.broadcast-progress p { font-size: 0.85rem; margin-top: 8px; overflow-wrap: anywhere; }
.progress-track { margin-top: 10px; height: 9px; border-radius: 9px; background: var(--border-color); overflow: hidden; }
.progress-fill { width: 0%; height: 100%; background: var(--accent-green); transition: width .25s ease; }
.schedule-error { margin-top: 12px; font-size: .82rem; }
.logs-table td { overflow-wrap: anywhere; }
.logs-table td:last-child { min-width: 150px; max-width: 340px; font-size: .78rem; }
button:disabled { opacity: .55; cursor: not-allowed; }
/* Must override display:flex on login-screen */
.login-screen.hidden { display: none !important; }