@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;600;700;800;900&display=swap');

:root {
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.3);
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --surface: #ffffff;
    --surface-alt: #f8fafc;
    --border: #e2e8f0;
    --text: #0f172a;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.15);
}

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

body {
    font-family: 'Cairo', sans-serif;
    background: var(--surface-alt);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    direction: rtl;
}

body[data-dir="ltr"] { direction: ltr; text-align: left; }
body[data-dir="ltr"] .domain-info,
body[data-dir="ltr"] .app-header,
body[data-dir="ltr"] .result-row,
body[data-dir="ltr"] .header-right,
body[data-dir="ltr"] .header-left,
body[data-dir="ltr"] .domain-header { direction: ltr; text-align: left; }

/* ===== SCREENS ===== */
.screen { display: none; min-height: 100vh; }
.screen.active { display: block; }
body[data-dir="rtl"] .login-card { text-align: right; }
body[data-dir="ltr"] .login-card { text-align: left; }
body[data-dir="rtl"] .login-form-side .login-card { text-align: right; }
body[data-dir="ltr"] .login-form-side .login-card { text-align: left; }

/* ===== LANGUAGE SWITCHER ===== */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2px;
}
.lang-btn {
    padding: 5px 10px;
    border: none;
    background: transparent;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s;
    font-family: 'Cairo', sans-serif;
}
.lang-btn:hover { background: rgba(59,130,246,0.08); color: var(--accent); }
.lang-btn.active { background: var(--accent); color: white; }

/* ===== LOGIN PAGE ===== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    position: relative;
    overflow: hidden;
}
.login-page::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(59,130,246,0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(16,185,129,0.06) 0%, transparent 40%);
    animation: loginBgPulse 8s ease-in-out infinite alternate;
}
@keyframes loginBgPulse {
    0% { transform: scale(1) rotate(0deg); }
    100% { transform: scale(1.05) rotate(2deg); }
}
.login-split { position: relative; z-index: 2; display: flex; width: 100%; max-width: 960px; min-height: 560px; border-radius: 24px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.4); }
.login-brand {
    flex: 0 0 420px;
    background: linear-gradient(135deg, rgba(59,130,246,0.15) 0%, rgba(16,185,129,0.08) 100%);
    border-right: 1px solid rgba(255,255,255,0.08);
    padding: 48px 36px;
    display: flex; flex-direction: column; justify-content: space-between;
    position: relative;
}
.login-brand::before {
    content: ''; position: absolute; inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%233b82f6' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.login-brand-content { position: relative; z-index: 1; }
.login-brand-content h1 { color: white; font-size: 32px; font-weight: 900; margin-bottom: 8px; letter-spacing: -0.5px; }
.login-tagline { color: rgba(255,255,255,0.5); font-size: 14px; margin-bottom: 40px; line-height: 1.6; }
.login-logo-lg {
    width: 72px; height: 72px;
    background: linear-gradient(135deg, var(--accent), #60a5fa);
    border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px; color: white; font-weight: 900;
    box-shadow: 0 8px 32px rgba(59,130,246,0.3);
    margin-bottom: 24px;
}
.login-features { display: flex; flex-direction: column; gap: 14px; }
.login-feature {
    display: flex; align-items: center; gap: 12px;
    color: rgba(255,255,255,0.7); font-size: 13px; font-weight: 500;
}
.lf-icon {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.08); border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; flex-shrink: 0;
}
.login-brand-footer {
    position: relative; z-index: 1;
    display: flex; justify-content: space-between;
    color: rgba(255,255,255,0.3); font-size: 11px;
    padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.06);
}
.login-form-side {
    flex: 1;
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(20px);
    padding: 40px;
    display: flex; align-items: center; justify-content: center;
}
.login-container { position: relative; z-index: 2; width: 100%; max-width: 520px; padding: 20px; }
.login-card {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
    text-align: left;
    width: 100%;
}
.login-logo {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--accent), #60a5fa);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 0 20px;
    font-size: 22px; color: white; font-weight: 900;
    box-shadow: 0 8px 32px rgba(59,130,246,0.3);
}
.login-card h2 { color: white; font-size: 22px; font-weight: 800; margin-bottom: 4px; }
.login-card .subtitle { color: rgba(255,255,255,0.45); font-size: 13px; margin-bottom: 24px; }
.domain-grid { display: grid; gap: 14px; }
.domain-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 14px; padding: 20px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: flex; align-items: center; gap: 16px;
}
.domain-card:hover {
    background: rgba(59,130,246,0.15);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(59,130,246,0.2);
}
.domain-icon {
    width: 52px; height: 52px;
    background: linear-gradient(135deg, var(--accent), #60a5fa);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; flex-shrink: 0;
}
.domain-info { text-align: right; }
body[data-dir="ltr"] .domain-info { text-align: left; }
.domain-info h3 { color: white; font-size: 16px; font-weight: 700; margin-bottom: 2px; }
.domain-info p { color: rgba(255,255,255,0.45); font-size: 12px; }
.version-badge {
    display: inline-block;
    background: rgba(59,130,246,0.15);
    color: var(--accent);
    padding: 4px 12px; border-radius: 20px;
    font-size: 11px; font-weight: 600;
    margin-top: 24px; letter-spacing: 0.5px;
}

/* ===== APP HEADER ===== */
.app-header {
    background: white;
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky; top: 0; z-index: 100;
    box-shadow: var(--shadow-sm);
    gap: 12px;
}
.header-right { display: flex; align-items: center; gap: 12px; }
.header-logo {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--accent), #60a5fa);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    color: white; font-weight: 900; font-size: 14px;
    flex-shrink: 0;
}
.header-title { font-size: 16px; font-weight: 700; color: var(--text); white-space: nowrap; }
.header-badge {
    background: var(--accent); color: white;
    padding: 3px 12px; border-radius: 20px;
    font-size: 11px; font-weight: 600;
    white-space: nowrap;
    display: none;
}
.header-left { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.btn-back {
    display: flex; align-items: center; gap: 6px;
    padding: 7px 14px;
    border-radius: 10px; border: 1px solid var(--border);
    background: white; color: var(--text);
    font-family: 'Cairo', sans-serif;
    font-size: 12px; font-weight: 600;
    cursor: pointer; transition: all 0.2s;
    text-decoration: none; white-space: nowrap;
}
.btn-back:hover { background: var(--surface-alt); border-color: var(--accent); color: var(--accent); }

/* ===== DASHBOARD ===== */
.dashboard-content { max-width: 1200px; margin: 0 auto; padding: 24px 16px; }
.domain-header { margin-bottom: 24px; }
.domain-header h2 { font-size: 24px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.domain-header p { color: var(--text-muted); font-size: 13px; }
.tests-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.test-card {
    background: white; border: 1px solid var(--border);
    border-radius: var(--radius); padding: 24px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none; color: inherit;
    position: relative; overflow: hidden;
}
.test-card::before {
    content: ''; position: absolute; top: 0; right: 0; left: 0; height: 4px;
    background: linear-gradient(90deg, var(--accent), #60a5fa);
    opacity: 0; transition: opacity 0.3s;
}
.test-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.test-card:hover::before { opacity: 1; }
.test-card-icon {
    width: 50px; height: 50px;
    background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(59,130,246,0.05));
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; margin-bottom: 14px;
}
.test-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.test-card p { font-size: 12px; color: var(--text-muted); line-height: 1.6; }
.test-card .card-footer {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border);
}
.card-tag {
    background: rgba(59,130,246,0.08); color: var(--accent);
    padding: 3px 10px; border-radius: 8px;
    font-size: 10px; font-weight: 600;
}
.card-arrow {
    width: 30px; height: 30px; border-radius: 8px;
    background: var(--surface-alt);
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted); transition: all 0.3s; font-size: 12px;
}
.test-card:hover .card-arrow { background: var(--accent); color: white; }

/* ===== TEST LAYOUT ===== */
.test-layout {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 20px; max-width: 1200px; margin: 0 auto; padding: 20px 16px;
}
.panel {
    background: white; border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
}
.panel-header {
    padding: 16px 20px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 10px;
}
.panel-header-icon {
    width: 36px; height: 36px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; flex-shrink: 0;
}
.panel-header-icon.blue { background: rgba(59,130,246,0.1); color: var(--accent); }
.panel-header-icon.green { background: rgba(16,185,129,0.1); color: var(--success); }
.panel-header-icon.orange { background: rgba(245,158,11,0.1); color: var(--warning); }
.panel-header-icon.purple { background: rgba(139,92,246,0.1); color: #8b5cf6; }
.panel-header h3 { font-size: 14px; font-weight: 700; }
.panel-body { padding: 20px; }

.form-group { margin-bottom: 16px; }
.form-group label {
    display: block; font-size: 12px; font-weight: 600;
    color: var(--text); margin-bottom: 6px;
}
.form-group input, .form-group select {
    width: 100%; padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: 'Cairo', sans-serif; font-size: 14px;
    transition: all 0.2s; background: var(--surface); color: var(--text);
}
.form-group input:focus, .form-group select:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.serial-status {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px; background: var(--surface-alt);
    border-radius: var(--radius-sm); margin-top: 10px;
}
.status-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.status-dot.connected { background: var(--success); box-shadow: 0 0 8px rgba(16,185,129,0.4); }
.status-dot.disconnected { background: var(--danger); }
.status-dot.scanning { background: var(--warning); animation: pulse 1.5s infinite; }
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:0.4;} }

.btn-primary {
    width: 100%; padding: 13px 24px;
    background: linear-gradient(135deg, var(--accent), #2563eb);
    color: white; border: none;
    border-radius: var(--radius-sm);
    font-family: 'Cairo', sans-serif;
    font-size: 14px; font-weight: 700;
    cursor: pointer; transition: all 0.3s;
    display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 25px rgba(59,130,246,0.35); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-secondary {
    width: 100%; padding: 13px 24px;
    background: white; color: var(--accent);
    border: 2px solid var(--accent);
    border-radius: var(--radius-sm);
    font-family: 'Cairo', sans-serif;
    font-size: 14px; font-weight: 700;
    cursor: pointer; transition: all 0.3s;
    display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-secondary:hover { background: rgba(59,130,246,0.05); }

/* ===== LIVE DATA ===== */
.live-indicator {
    display: flex; align-items: center; gap: 6px;
    padding: 5px 12px;
    background: rgba(239,68,68,0.08);
    border-radius: 20px; font-size: 11px;
    font-weight: 600; color: var(--danger);
}
.live-dot {
    width: 7px; height: 7px; background: var(--danger);
    border-radius: 50%; animation: livePulse 1s infinite;
}
@keyframes livePulse { 0%,100%{opacity:1;transform:scale(1);} 50%{opacity:0.5;transform:scale(1.3);} }
.data-readings { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.reading-card {
    background: var(--surface-alt); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 14px; text-align: center;
}
.reading-label {
    font-size: 10px; font-weight: 600;
    color: var(--text-muted); text-transform: uppercase;
    letter-spacing: 0.5px; margin-bottom: 6px;
}
.reading-value { font-size: 24px; font-weight: 800; color: var(--accent); line-height: 1; }
.reading-unit { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ===== RESULTS ===== */
.result-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 0; border-bottom: 1px solid var(--surface-alt);
}
.result-row:last-child { border-bottom: none; }
.result-label { font-size: 12px; color: var(--text-muted); font-weight: 600; }
.result-value { font-size: 14px; font-weight: 700; color: var(--text); }
.result-status {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px; border-radius: 20px;
    font-size: 13px; font-weight: 700; margin-bottom: 12px;
}
.result-status.pass { background: rgba(16,185,129,0.1); color: var(--success); }
.result-status.fail { background: rgba(239,68,68,0.1); color: var(--danger); }
.chart-container { margin-top: 16px; padding: 16px; background: var(--surface-alt); border-radius: var(--radius-sm); }
.chart-bar { height: 8px; background: var(--border); border-radius: 4px; margin-top: 8px; overflow: hidden; }
.chart-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), #60a5fa);
    border-radius: 4px;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== STRIKE LOG ===== */
.strike-log { max-height: 260px; overflow-y: auto; }
.strike-log table { width: 100%; border-collapse: collapse; }
.strike-log th { position: sticky; top: 0; background: var(--surface-alt); z-index: 1; }
.strike-log th, .strike-log td { padding: 7px 10px; font-size: 11px; border-bottom: 1px solid var(--border); text-align: center; }

/* ===== PROGRESS RING ===== */
.progress-ring { display: flex; align-items: center; justify-content: center; gap: 14px; margin-bottom: 16px; flex-wrap: wrap; }
.gauge-container { position: relative; width: 90px; height: 90px; }
.gauge-bg { fill: none; stroke: var(--border); stroke-width: 8; }
.gauge-fill { fill: none; stroke: var(--accent); stroke-width: 8; stroke-linecap: round; transition: stroke-dashoffset 0.5s ease; transform: rotate(-90deg); transform-origin: center; }
.ring-text { font-size: 28px; font-weight: 900; color: var(--accent); }
.ring-label { font-size: 11px; color: var(--text-muted); }
.demo-banner {
    background: rgba(245,158,11,0.1);
    border: 1px solid rgba(245,158,11,0.3);
    border-radius: 10px; padding: 8px 14px;
    font-size: 11px; color: var(--warning);
    margin-bottom: 14px;
    display: flex; align-items: center; gap: 6px;
}
.serial-console {
    background: #0f172a; color: #10b981;
    border-radius: 10px; padding: 12px;
    font-family: 'Courier New', monospace;
    font-size: 10px; max-height: 100px; overflow-y: auto;
    direction: ltr; text-align: left;
}
.serial-line { margin-bottom: 1px; }
.serial-line .ts { color: #64748b; }
.serial-line .rx { color: #3b82f6; }
.serial-line .tx { color: #f59e0b; }

/* ===== HISTORY TABLE ===== */
.history-table { width: 100%; border-collapse: collapse; }
.history-table th {
    padding: 10px 14px; text-align: right;
    font-size: 11px; font-weight: 700;
    color: var(--text-muted); text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--surface-alt); border-bottom: 1px solid var(--border);
}
.history-table td { padding: 12px 14px; font-size: 12px; border-bottom: 1px solid var(--border); }
.history-table tr:hover { background: var(--surface-alt); }
.result-pass { color: var(--success); font-weight: 700; }
.result-fail { color: var(--danger); font-weight: 700; }

/* ===== FOOTER ===== */
.site-footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white; margin-top: auto;
}
.footer-top {
    max-width: 1200px; margin: 0 auto;
    padding: 36px 20px 24px;
    display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 32px;
}
.footer-brand h3 { font-size: 20px; font-weight: 800; margin-bottom: 4px; }
.footer-brand .tagline { color: rgba(255,255,255,0.45); font-size: 11px; margin-bottom: 12px; font-weight: 300; }
.footer-brand .description { color: rgba(255,255,255,0.55); font-size: 12px; line-height: 1.8; max-width: 420px; }
.footer-section h4 { font-size: 13px; font-weight: 700; margin-bottom: 12px; color: rgba(255,255,255,0.8); }
.footer-section ul { list-style: none; }
.footer-section ul li { margin-bottom: 8px; }
.footer-section ul li a {
    color: rgba(255,255,255,0.45); text-decoration: none;
    font-size: 12px; transition: color 0.2s;
    display: flex; align-items: center; gap: 6px;
}
.footer-section ul li a:hover { color: var(--accent); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    max-width: 1200px; margin: 0 auto;
    padding: 16px 20px;
    display: flex; align-items: center; justify-content: space-between;
}
.footer-bottom p { color: rgba(255,255,255,0.3); font-size: 11px; }
.footer-locations { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-locations span { color: rgba(255,255,255,0.4); font-size: 11px; display: flex; align-items: center; gap: 4px; }

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 1024px) {
    .test-layout { grid-template-columns: 1fr; }
    .header-badge { display: none; }
}

@media (max-width: 768px) {
    .login-card { padding: 32px 20px; border-radius: 20px; }
    .login-logo { width: 64px; height: 64px; font-size: 26px; border-radius: 16px; }
    .login-card h1 { font-size: 22px; }
    .login-card .subtitle { font-size: 12px; margin-bottom: 24px; }
    .domain-card { padding: 16px; }
    .domain-icon { width: 44px; height: 44px; font-size: 20px; border-radius: 12px; }
    .domain-info h3 { font-size: 14px; }

    .app-header { padding: 0 14px; height: 54px; }
    .header-title { font-size: 14px; }
    .btn-back { padding: 6px 10px; font-size: 11px; }

    .dashboard-content { padding: 16px 12px; }
    .domain-header h2 { font-size: 20px; }
    .tests-grid { grid-template-columns: 1fr; gap: 12px; }
    .test-card { padding: 20px; }

    .test-layout { padding: 12px; gap: 12px; }
    .panel-body { padding: 16px; }
    .panel-header { padding: 14px 16px; }
    .panel-header h3 { font-size: 13px; }

    .data-readings { grid-template-columns: 1fr 1fr; gap: 8px; }
    .reading-card { padding: 12px 8px; }
    .reading-value { font-size: 20px; }

    .progress-ring { gap: 10px; }
    .gauge-container { width: 80px; height: 80px; }
    .ring-text { font-size: 24px; }

    .strike-log th, .strike-log td { padding: 5px 6px; font-size: 10px; }

    .footer-top { grid-template-columns: 1fr; gap: 20px; padding: 28px 16px 20px; }
    .footer-bottom { flex-direction: column; gap: 10px; text-align: center; padding: 14px 16px; }
    .footer-locations { justify-content: center; }
}

@media (max-width: 400px) {
    .login-container { padding: 12px; }
    .login-card { padding: 0; }
    .data-readings { grid-template-columns: 1fr; }
    .lang-switcher { flex-wrap: wrap; justify-content: center; }
    .lang-btn { padding: 4px 7px; font-size: 10px; }
    .header-right { gap: 8px; }
    .header-title { font-size: 13px; }
    .btn-back span.btn-text { display: none; }
}
@media (max-width: 768px) {
    .login-split { flex-direction: column; max-width: 420px; min-height: auto; }
    .login-brand { flex: none; padding: 32px 24px; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.08); }
    .login-brand-content h1 { font-size: 24px; }
    .login-features { display: none; }
    .login-form-side { padding: 24px; }
    .login-card h2 { font-size: 20px; }
}

/* ===== PASSWORD TOGGLE ===== */
.auth-form .input-wrapper { position: relative; }
.auth-form .input-wrapper input { padding-right: 44px; }
.auth-form .input-wrapper .pw-toggle {
    position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
    background: none; border: none; color: rgba(255,255,255,0.4); cursor: pointer;
    font-size: 16px; padding: 4px; transition: color 0.2s;
}
.auth-form .input-wrapper .pw-toggle:hover { color: white; }

/* ===== FORM FIELDS ===== */
.form-field { margin-bottom: 16px; }
.form-field label {
    display: block; color: rgba(255,255,255,0.6); font-size: 12px; font-weight: 600;
    margin-bottom: 6px; letter-spacing: 0.3px;
}
.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"] {
    width: 100%; padding: 12px 16px;
    background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px; color: white; font-size: 14px;
    font-family: 'Cairo', sans-serif; transition: all 0.2s;
    outline: none;
}
.auth-form input:focus {
    border-color: var(--accent); background: rgba(59,130,246,0.08);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.auth-form input::placeholder { color: rgba(255,255,255,0.25); }

/* ===== AUTH LOADING ===== */
.btn-submit .btn-spinner {
    display: none; width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.3); border-top-color: white;
    border-radius: 50%; animation: spin 0.6s linear infinite;
}
.btn-submit.loading { opacity: 0.7; pointer-events: none; display: flex; align-items: center; justify-content: center; gap: 8px; }
.btn-submit.loading .btn-spinner { display: block; }
.btn-google .btn-spinner {
    display: none; width: 16px; height: 16px;
    border: 2px solid rgba(255,255,255,0.3); border-top-color: white;
    border-radius: 50%; animation: spin 0.6s linear infinite;
}
.btn-google.loading { opacity: 0.7; pointer-events: none; }
.btn-google.loading .btn-spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== FORGOT PASSWORD ===== */
.forgot-link {
    text-align: right; margin-bottom: 14px;
}
body[data-dir="ltr"] .forgot-link { text-align: left; }
.forgot-link a {
    color: rgba(255,255,255,0.4); font-size: 12px;
    text-decoration: none; transition: color 0.2s; cursor: pointer;
}
.forgot-link a:hover { color: var(--accent); }

/* ===== GUEST BUTTON ===== */
.btn-guest {
    width: 100%; padding: 12px;
    background: transparent; border: 1px dashed rgba(255,255,255,0.15);
    border-radius: 12px; color: rgba(255,255,255,0.5);
    font-size: 13px; font-weight: 600; cursor: pointer;
    font-family: 'Cairo', sans-serif; transition: all 0.2s;
    margin-top: 12px;
}
.btn-guest:hover { border-color: rgba(255,255,255,0.3); color: rgba(255,255,255,0.7); background: rgba(255,255,255,0.03); }

/* ===== USER DROPDOWN ===== */
.user-badge { position: relative; }
.user-badge .user-icon {
    width: 24px; height: 24px; border-radius: 50%;
    background: var(--accent); color: white;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; font-weight: 700;
}
.user-dropdown {
    position: absolute; top: calc(100% + 8px); right: 0;
    background: white; border: 1px solid var(--border);
    border-radius: 12px; box-shadow: var(--shadow-lg);
    min-width: 180px; z-index: 200; overflow: hidden;
    display: none; animation: dropIn 0.2s ease-out;
}
body[data-dir="ltr"] .user-dropdown { right: auto; left: 0; }
.user-dropdown.show { display: block; }
.user-dropdown .dd-header {
    padding: 12px 16px; border-bottom: 1px solid var(--border);
}
.user-dropdown .dd-header .dd-name { font-size: 13px; font-weight: 700; color: var(--text); }
.user-dropdown .dd-header .dd-email { font-size: 11px; color: var(--text-muted); }
.user-dropdown .dd-item {
    padding: 10px 16px; display: flex; align-items: center; gap: 10px;
    font-size: 13px; color: var(--text); cursor: pointer;
    transition: background 0.15s; border: none; background: none;
    width: 100%; font-family: 'Cairo', sans-serif; text-align: right;
}
body[data-dir="ltr"] .user-dropdown .dd-item { text-align: left; }
.user-dropdown .dd-item:hover { background: var(--surface-alt); }
.user-dropdown .dd-item.danger { color: var(--danger); }
.user-dropdown .dd-item .dd-icon { font-size: 15px; width: 20px; text-align: center; }
@keyframes dropIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }

/* ===== HEADER USER BUTTON (all screens) ===== */
.header-user-btn {
    display: flex; align-items: center; gap: 6px;
    padding: 5px 12px 5px 6px; border-radius: 20px;
    background: rgba(59,130,246,0.08); border: 1px solid rgba(59,130,246,0.15);
    cursor: pointer; transition: all 0.2s; position: relative;
}
.header-user-btn:hover { background: rgba(59,130,246,0.15); }
.header-user-btn .user-icon {
    width: 26px; height: 26px; border-radius: 50%;
    background: var(--accent); color: white;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; font-weight: 700; flex-shrink: 0;
}
.header-user-btn .user-name-text {
    font-size: 11px; font-weight: 600; color: var(--text);
    max-width: 100px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.header-user-btn .dd-arrow { font-size: 8px; color: var(--text-muted); }

/* ===== AI CARD CHAT INDICATOR ===== */
.ai-card .chat-indicator {
    display: flex; align-items: center; gap: 4px;
    margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--border);
    font-size: 11px; font-weight: 600; color: var(--accent);
    transition: gap 0.2s;
}
.ai-card:hover .chat-indicator { gap: 8px; }
.ai-card .chat-indicator .arrow { transition: transform 0.2s; }
.ai-card:hover .chat-indicator .arrow { transform: translateX(3px); }
body[data-dir="rtl"] .ai-card:hover .chat-indicator .arrow { transform: translateX(-3px); }

/* ===== CHAT RETRY BUTTON ===== */
.chat-retry-btn {
    display: inline-flex; align-items: center; gap: 4px;
    margin-top: 8px; padding: 5px 12px;
    background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2);
    border-radius: 8px; font-size: 11px; font-weight: 600;
    color: var(--accent); cursor: pointer; transition: all 0.2s;
    font-family: 'Cairo', sans-serif;
}
.chat-retry-btn:hover { background: rgba(59,130,246,0.2); }

/* ===== MANUAL INPUTS ===== */
.manual-inputs {
    display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
    margin-bottom: 12px;
}
.manual-inputs .form-group { margin-bottom: 0; }
.manual-inputs input {
    width: 100%; padding: 12px 14px;
    border: 2px solid var(--border); border-radius: var(--radius-sm);
    font-family: 'Cairo', sans-serif; font-size: 18px; font-weight: 700;
    text-align: center; background: var(--surface-alt); color: var(--text);
    transition: border-color 0.2s;
}
.manual-inputs input:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.manual-inputs input::placeholder { font-size: 14px; font-weight: 400; }

/* ===== CONNECTION SELECT ===== */
#com-port-select {
    width: 100%; padding: 12px 14px;
    border: 2px solid var(--border); border-radius: var(--radius-sm);
    font-family: 'Cairo', sans-serif; font-size: 13px; font-weight: 600;
    background: var(--surface); color: var(--text);
    cursor: pointer; transition: border-color 0.2s;
    appearance: auto;
}
#com-port-select:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
#com-port-select option { padding: 8px; font-size: 13px; }

/* ===== ANIMATIONS ===== */
.fade-in { animation: fadeIn 0.5s ease-out; }
@keyframes fadeIn { from{opacity:0;transform:translateY(10px);} to{opacity:1;transform:translateY(0);} }
.slide-up { animation: slideUp 0.4s ease-out; }
@keyframes slideUp { from{opacity:0;transform:translateY(20px);} to{opacity:1;transform:translateY(0);} }