/* ===== Reset & Variables ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4f46e5;
    --primary-dark: #3730a3;
    --primary-light: #818cf8;
    --primary-lighter: #c7d2fe;
    --primary-bg: #eef2ff;
    --secondary: #64748b;
    --secondary-light: #94a3b8;
    --danger: #ef4444;
    --danger-bg: #fef2f2;
    --success: #10b981;
    --success-bg: #ecfdf5;
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --info: #3b82f6;
    --info-bg: #eff6ff;
    --bg: #f1f5f9;
    --card-bg: #ffffff;
    --text: #0f172a;
    --text-secondary: #475569;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-xs: 0 1px 2px rgb(0 0 0 / 0.04);
    --shadow-sm: 0 1px 3px rgb(0 0 0 / 0.06), 0 1px 2px rgb(0 0 0 / 0.04);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-md: 0 6px 16px -4px rgb(0 0 0 / 0.08), 0 2px 6px -2px rgb(0 0 0 / 0.04);
    --shadow-lg: 0 12px 28px -6px rgb(0 0 0 / 0.1), 0 4px 8px -4px rgb(0 0 0 / 0.06);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Base ===== */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* ===== Header ===== */
header {
    margin-bottom: 32px;
    padding: 1.5rem 0;
    background: linear-gradient(135deg, #1e1b4b 0%, var(--primary-dark) 40%, var(--primary) 100%);
    color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md), 0 0 0 1px rgba(79, 70, 229, 0.1);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    padding: 0 2rem;
    position: relative;
}

.header-left {
    flex: 1;
    min-width: 250px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

header h1 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 0.35rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    letter-spacing: -0.02em;
}

.subtitle {
    color: rgba(255, 255, 255, 0.75);
    font-size: 1rem;
    font-weight: 400;
}

.user-info {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.btn-logout {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.12);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    backdrop-filter: blur(4px);
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.22);
    border-color: rgba(255, 255, 255, 0.35);
}

/* ===== Settings link ===== */
.settings-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    border: 1px solid transparent;
}

.settings-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
}

/* ===== Cards ===== */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

h2 {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text);
    letter-spacing: -0.01em;
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text);
}

input[type="text"],
input[type="password"],
select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    transition: all var(--transition);
    background: var(--card-bg);
    color: var(--text);
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

small {
    display: block;
    margin-top: 6px;
    color: var(--secondary);
    font-size: 0.8125rem;
}

/* ===== Buttons ===== */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 1px 2px rgb(79 70 229 / 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgb(79 70 229 / 0.35);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    font-size: 0.875rem;
    padding: 8px 16px;
    border: 1.5px solid var(--border);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8125rem;
}

/* ===== Section Header ===== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

/* ===== Progress Section ===== */
.progress-section {
    margin-top: 24px;
    padding: 20px;
    background: var(--primary-bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--primary-lighter);
}

.progress-section h3 {
    margin-bottom: 15px;
    color: var(--primary);
    font-size: 1rem;
}

.progress-logs {
    max-height: 400px;
    overflow-y: auto;
    font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    font-size: 0.8125rem;
    line-height: 1.9;
}

.log-entry {
    padding: 3px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.log-entry:last-child {
    border-bottom: none;
}

.log-entry.step {
    color: var(--primary);
    font-weight: 600;
}

.log-entry.error {
    color: var(--danger);
}

.log-entry.complete {
    color: var(--success);
    font-weight: 700;
    font-size: 0.9375rem;
    padding: 10px 14px;
    background: var(--success-bg);
    border-radius: var(--radius-sm);
    margin-top: 10px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* ===== Utility ===== */
.hidden {
    display: none;
}

/* ===== Instances List ===== */
.instances-list {
    display: grid;
    gap: 16px;
}

.instance-card {
    padding: 1.5rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
    background: var(--card-bg);
}

.instance-card:hover {
    border-color: var(--primary-lighter);
    box-shadow: var(--shadow-md);
}

.instance-card.unlocked-warning {
    border-left: 4px solid var(--warning);
}

.instance-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.instance-domain {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.01em;
}

.instance-status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.status-running {
    background: var(--success-bg);
    color: #065f46;
}

.status-pending-setup {
    background: var(--warning-bg);
    color: #92400e;
}

.status-installed {
    background: var(--info-bg);
    color: #1e40af;
}

.status-config-only {
    background: var(--danger-bg);
    color: #991b1b;
}

.status-unknown {
    background: var(--bg);
    color: var(--secondary);
}

.instance-info {
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.instance-url {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition);
}

.instance-url:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.loading {
    text-align: center;
    padding: 48px;
    color: var(--secondary);
}

/* ===== Footer ===== */
footer {
    text-align: center;
    padding: 32px 0;
    color: var(--secondary-light);
    font-size: 0.8125rem;
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 92%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0, 0, 0, 0.05);
    animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.96) translateY(8px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--secondary);
    cursor: pointer;
    line-height: 1;
    padding: 4px;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.modal-close:hover {
    color: var(--danger);
    background: var(--danger-bg);
}

.modal-body {
    padding: 24px;
}

/* ===== Config Modal ===== */
.config-group {
    margin-bottom: 20px;
    padding: 16px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
}

.config-group h3 {
    margin: 0 0 12px 0;
    font-size: 1rem;
    color: var(--text);
}

.config-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
}

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

.config-label {
    font-weight: 500;
    color: var(--secondary);
    font-size: 0.875rem;
}

.config-value {
    font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    color: var(--text);
    word-break: break-all;
    font-size: 0.8125rem;
}

.btn-config {
    background: var(--primary);
    color: white;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}

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

/* ===== Backup/Restore ===== */
.btn-action {
    padding: 6px 14px;
    background: var(--info);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-action:hover {
    background: #2563eb;
    transform: translateY(-1px);
}

.backups-list {
    margin: 20px 0;
    max-height: 300px;
    overflow-y: auto;
}

.backup-item {
    padding: 14px 16px;
    margin-bottom: 8px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.backup-item:hover {
    border-color: var(--primary-light);
    background: var(--primary-bg);
}

.backup-item.selected {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

.backup-date {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.backup-version {
    font-size: 0.875rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 4px;
}

.backup-size {
    color: var(--secondary);
    font-size: 0.8125rem;
}

.restore-options {
    margin: 20px 0;
    padding: 16px;
    background: var(--bg);
    border-radius: var(--radius-sm);
}

.restore-options label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 0.875rem;
}

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

/* ===== Progress Bar ===== */
.progress-container {
    margin: 20px 0;
    background: var(--border);
    border-radius: 20px;
    height: 28px;
    overflow: hidden;
    position: relative;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    transition: width 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.8125rem;
    position: relative;
    border-radius: 20px;
}

.progress-bar.animated {
    background: linear-gradient(90deg, var(--primary), var(--primary-light), var(--primary));
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.progress-bar-text {
    position: relative;
    z-index: 2;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
}

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

/* ===== Settings Page ===== */
.settings-section {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.settings-section h2 {
    margin-bottom: 20px;
    color: var(--text);
    font-size: 1.375rem;
}

.settings-form {
    max-width: 500px;
}

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

.settings-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text);
}

.settings-form input {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    transition: all var(--transition);
}

.settings-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

.settings-form small {
    display: block;
    margin-top: 5px;
    color: var(--secondary);
    font-size: 0.8125rem;
}

/* ===== Alerts ===== */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.alert-success {
    background: var(--success-bg);
    color: #065f46;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-error {
    background: var(--danger-bg);
    color: #991b1b;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ===== Domains ===== */
.domains-list {
    margin-bottom: 20px;
}

.domain-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    border: 1px solid var(--border-light);
    transition: all var(--transition);
}

.domain-item:hover {
    border-color: var(--border);
}

.domain-info {
    flex: 1;
}

.domain-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.domain-date {
    font-size: 0.8125rem;
    color: var(--secondary);
}

.empty-state {
    text-align: center;
    color: var(--secondary);
    padding: 48px 20px;
    font-size: 0.9375rem;
}

/* ===== Settings Layout (Sidebar) ===== */
.settings-layout {
    display: flex;
    gap: 24px;
    min-height: 600px;
}

.settings-sidebar {
    flex-shrink: 0;
    width: 240px;
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 16px 0;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    height: fit-content;
    position: sticky;
    top: 20px;
}

.settings-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.settings-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition);
    border-left: 3px solid transparent;
    font-size: 0.875rem;
    font-weight: 500;
}

.settings-nav-item:hover {
    background: var(--bg);
    color: var(--text);
}

.settings-nav-item.active {
    background: var(--primary-bg);
    border-left-color: var(--primary);
    color: var(--primary);
    font-weight: 600;
}

.settings-nav-item .icon {
    font-size: 1.125rem;
    width: 24px;
    text-align: center;
}

.settings-nav-item .label {
    flex: 1;
}

.settings-content {
    flex: 1;
    min-width: 0;
}

.settings-section {
    display: none;
}

.settings-section.active {
    display: block;
}

.section-header {
    margin-bottom: 24px;
}

.section-header h2 {
    font-size: 1.75rem;
    color: var(--text);
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

.section-description {
    color: var(--secondary);
    font-size: 0.9375rem;
}

.card h3 {
    margin-bottom: 16px;
    color: var(--text);
    font-size: 1.125rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 500;
    color: var(--secondary);
    font-size: 0.875rem;
}

.info-value {
    font-weight: 600;
    color: var(--text);
    font-size: 0.875rem;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.badge-admin {
    background: var(--primary-bg);
    color: var(--primary);
}

.badge-user {
    background: #faf5ff;
    color: #7c3aed;
}

.badge-maintainer {
    background: #ecfdf5;
    color: #065f46;
}

/* ===== Upgrade UI ===== */
.btn-upgrade {
    padding: 8px 16px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8125rem;
    transition: all var(--transition);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.btn-upgrade:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-upgrade:disabled {
    background: var(--border);
    cursor: not-allowed;
    opacity: 0.6;
    box-shadow: none;
    transform: none;
}

.version-badge {
    display: inline-block;
    padding: 3px 10px;
    background: var(--info-bg);
    color: var(--info);
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 600;
    font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
}

.version-available {
    background: linear-gradient(135deg, #ddd6fe 0%, #fce7f3 100%);
    color: #7c3aed;
    animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.65; }
}

.upgrade-steps {
    margin: 20px 0;
}

.upgrade-step {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    padding: 16px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.step-content {
    flex: 1;
}

.step-content strong {
    display: block;
    margin-bottom: 4px;
    color: var(--text);
    font-size: 0.9375rem;
}

.step-content small {
    display: block;
    margin-top: 4px;
    color: var(--secondary);
    font-size: 0.8125rem;
}

.upgrade-url {
    display: block;
    margin-top: 8px;
    padding: 10px 14px;
    background: white;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition);
}

.upgrade-url:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.backup-info {
    margin: 20px 0;
    padding: 14px 16px;
    background: var(--warning-bg);
    border-left: 3px solid var(--warning);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: #92400e;
}

.backup-info code {
    background: rgba(0, 0, 0, 0.06);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    font-size: 0.8125rem;
}

/* ===== Lock Button & Warning ===== */
.btn-lock {
    padding: 6px 10px;
    background: transparent;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1.125rem;
    transition: all var(--transition);
}

.btn-lock.locked {
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--success);
}

.btn-lock.locked:hover {
    background: var(--success);
    color: white;
    border-color: var(--success);
}

.btn-lock.unlocked {
    border-color: rgba(245, 158, 11, 0.4);
    color: var(--warning);
    animation: pulse-warning 2s ease-in-out infinite;
}

.btn-lock.unlocked:hover {
    background: var(--warning);
    color: white;
    border-color: var(--warning);
}

@keyframes pulse-warning {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.lock-warning {
    background: var(--warning-bg);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    margin: 10px 0;
    font-size: 0.8125rem;
    color: #92400e;
}

/* ===== Skeleton Loaders ===== */
.skeleton-btn {
    width: 80px;
    height: 36px;
    background: linear-gradient(90deg, var(--bg) 25%, var(--border) 50%, var(--bg) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

.skeleton-text {
    width: 150px;
    height: 20px;
    background: linear-gradient(90deg, var(--bg) 25%, var(--border) 50%, var(--bg) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 4px;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ===== Instance Logs ===== */
.instance-logs {
    margin-top: 16px;
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

.logs-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding: 10px 12px;
    background: var(--bg);
    border-radius: var(--radius-sm);
}

.logs-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text);
}

/* ===== RESPONSIVE ===== */

@media (max-width: 768px) {
    .container {
        padding: 12px;
    }

    header {
        margin-bottom: 20px;
        border-radius: var(--radius);
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem 1.25rem;
    }

    .header-left {
        width: 100%;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
        gap: 8px;
    }

    header h1 {
        font-size: 1.625rem;
    }

    .subtitle {
        font-size: 0.875rem;
    }

    .btn-logout {
        padding: 6px 12px;
        font-size: 0.8125rem;
    }

    .settings-link {
        margin-left: 0;
        margin-right: auto;
    }

    .card {
        padding: 16px;
        border-radius: var(--radius-sm);
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .section-header h2 {
        font-size: 1.25rem;
    }

    .section-header .btn {
        width: 100%;
    }

    .form-group {
        margin-bottom: 16px;
    }

    input[type="text"],
    input[type="password"],
    select {
        font-size: 16px; /* Prevent zoom on iOS */
    }

    .btn {
        width: 100%;
        padding: 12px;
    }

    .instance-card {
        padding: 14px;
    }

    .instance-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .instance-domain {
        font-size: 1.0625rem;
        word-break: break-all;
    }

    .instance-header > div[style*="display: flex"] {
        width: 100%;
        flex-wrap: wrap;
        gap: 6px;
    }

    .btn-upgrade,
    .btn-action,
    .btn-config,
    .btn-lock {
        flex: 1 1 auto;
        min-width: 80px;
        padding: 8px 10px;
        font-size: 0.8125rem;
    }

    .btn-upgrade {
        flex: 1 1 100%;
        order: -1;
    }

    .instance-status {
        width: 100%;
        text-align: center;
    }

    .instance-info {
        font-size: 0.8125rem;
        word-break: break-word;
    }

    .instance-info > div {
        margin-bottom: 6px;
    }

    .version-badge {
        display: inline-block;
        margin-top: 4px;
    }

    .lock-warning {
        font-size: 0.8125rem;
        padding: 8px 12px;
    }

    .instance-logs {
        margin-top: 12px;
        padding-top: 12px;
    }

    .logs-header {
        flex-direction: column;
        gap: 8px;
        padding: 8px;
    }

    .logs-content {
        max-height: 300px;
        padding: 10px;
        font-size: 0.8125rem;
    }

    .progress-section {
        margin-top: 16px;
        padding: 14px;
    }

    .progress-logs {
        font-size: 0.75rem;
        max-height: 300px;
    }

    .modal-content {
        width: 95%;
        max-height: 90vh;
        border-radius: var(--radius);
    }

    .modal-header {
        padding: 16px;
    }

    .modal-header h2 {
        font-size: 1.0625rem;
    }

    .modal-body {
        padding: 16px;
    }

    .config-group {
        margin-bottom: 14px;
        padding: 12px;
    }

    .config-item {
        flex-direction: column;
        gap: 4px;
    }

    .backups-list {
        max-height: 200px;
    }

    .backup-item {
        padding: 12px;
    }

    .restore-options {
        padding: 12px;
    }

    .progress-container {
        height: 24px;
    }

    .progress-bar {
        font-size: 0.75rem;
    }

    .upgrade-step {
        flex-direction: column;
        gap: 10px;
        padding: 12px;
    }

    .step-number {
        width: 28px;
        height: 28px;
        font-size: 0.8125rem;
    }

    .upgrade-url {
        font-size: 0.8125rem;
        padding: 8px;
        word-break: break-all;
    }

    .backup-info {
        font-size: 0.8125rem;
        padding: 10px 12px;
    }

    .backup-info code {
        display: block;
        word-break: break-all;
        margin-top: 4px;
    }

    footer {
        font-size: 0.75rem;
        padding: 20px 0;
    }

    /* Settings responsive */
    .settings-layout {
        flex-direction: column;
    }

    .settings-sidebar {
        width: 100%;
        position: static;
        padding: 12px 0;
    }

    .settings-nav {
        flex-direction: row;
        overflow-x: auto;
    }

    .settings-nav-item {
        flex-direction: column;
        gap: 4px;
        border-left: none;
        border-bottom: 3px solid transparent;
        padding: 8px 14px;
        white-space: nowrap;
        font-size: 0.8125rem;
    }

    .settings-nav-item.active {
        border-left: none;
        border-bottom-color: var(--primary);
    }

    .settings-nav-item .label {
        font-size: 0.8125rem;
    }
}

/* Small mobile (< 480px) */
@media (max-width: 480px) {
    .container {
        padding: 8px;
    }

    header h1 {
        font-size: 1.375rem;
    }

    .subtitle {
        font-size: 0.8125rem;
    }

    .card {
        padding: 12px;
    }

    .card h2 {
        font-size: 1.0625rem;
        margin-bottom: 1rem;
    }

    .btn-upgrade,
    .btn-action,
    .btn-config,
    .btn-lock {
        font-size: 0.75rem;
        padding: 6px 8px;
        min-width: 70px;
    }

    .instance-domain {
        font-size: 0.9375rem;
    }

    .modal-content {
        width: 98%;
        max-height: 95vh;
    }

    .modal-header h2 {
        font-size: 1rem;
    }

    .progress-logs,
    .logs-content,
    .backups-list {
        max-height: 250px;
        font-size: 0.75rem;
    }

    .btn {
        padding: 10px;
        font-size: 0.875rem;
    }
}