/* ============================================
   Cnab Virtual Browser - Light Clean Theme
   ============================================ */

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

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --primary-glow: rgba(79, 70, 229, 0.15);
    --success: #059669;
    --success-bg: #ecfdf5;
    --danger: #dc2626;
    --warning: #d97706;
    --bg-body: #f8fafc;
    --bg-white: #ffffff;
    --bg-header: #ffffff;
    --bg-input: #f1f5f9;
    --bg-input-focus: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-focus: #4f46e5;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --header-height: 52px;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* === Header === */
.app-header {
    background: var(--bg-header);
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo svg {
    color: var(--primary);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-status {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 5px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.73rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.status-indicator {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--text-muted);
    flex-shrink: 0;
}

.status-indicator.connected {
    background: var(--success);
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
}

.status-indicator.loading {
    background: var(--warning);
    animation: pulse 1.2s ease-in-out infinite;
}

.status-indicator.error {
    background: var(--danger);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.8); }
}

.header-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.header-btn:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

.header-btn-danger:hover {
    background: #fef2f2;
    border-color: var(--danger);
    color: var(--danger);
}

.user-badge {
    padding: 5px 12px;
    background: var(--primary-light);
    border: 1px solid rgba(79, 70, 229, 0.15);
    border-radius: 20px;
    font-size: 0.73rem;
    color: var(--primary);
    font-weight: 600;
}

/* === Main Content === */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
    position: relative;
}

/* === Browser Viewport === */
.browser-viewport {
    flex: 1;
    position: relative;
    background: #1a1a1a;
    overflow: hidden;
    border-top: none;
}

.vnc-frame {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

/* === Loading Overlay === */
.loading-overlay {
    position: absolute;
    inset: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-body);
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 44px;
    height: 44px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loader-text {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.loader-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* === Clipboard Panel === */
.clipboard-panel {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    animation: slideDown 0.2s ease;
    box-shadow: var(--shadow-sm);
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

.clipboard-inner {
    display: flex;
    gap: 20px;
    padding: 14px 20px;
    max-width: 900px;
}

.clipboard-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.clipboard-section label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.clipboard-section textarea {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.8rem;
    resize: none;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.clipboard-section textarea:focus {
    outline: none;
    background: var(--bg-input-focus);
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.clipboard-divider {
    width: 1px;
    background: var(--border);
    align-self: stretch;
}

.clipboard-actions {
    display: flex;
    gap: 6px;
}

.clipboard-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.72rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.clipboard-btn:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

.clipboard-btn-accent {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.clipboard-btn-accent:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: white;
}

/* === Login Page === */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--header-height));
    background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
}

.login-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 48px 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header svg {
    color: var(--primary);
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.login-form .form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 11px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    background: var(--bg-input-focus);
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-select {
    width: 100%;
    padding: 11px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all 0.2s;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}

.form-select:focus {
    outline: none;
    background-color: var(--bg-input-focus);
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    font-size: 0.85rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    line-height: 1;
}

.btn-primary {
    background: var(--primary);
    color: white;
    width: 100%;
    justify-content: center;
    padding: 13px;
    font-weight: 600;
    font-size: 0.9rem;
}

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-sm {
    padding: 5px 12px;
    font-size: 0.75rem;
}

.btn-outline {
    background: var(--bg-white);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.btn-outline:hover {
    background: var(--bg-input);
    color: var(--text-primary);
    border-color: var(--primary);
}

/* === Alerts === */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin: 16px 20px;
    font-size: 0.85rem;
}

.alert-error {
    background: #fef2f2;
    color: var(--danger);
    border: 1px solid #fecaca;
}

/* === Footer (hidden) === */
.app-footer {
    display: none;
}

/* === Responsive === */
@media (max-width: 600px) {
    .clipboard-inner {
        flex-direction: column;
    }
    .clipboard-divider {
        width: 100%;
        height: 1px;
    }
}