:root {
    --bg-primary: #181a1f;
    --bg-secondary: #22262e;
    --bg-card: #2c313a;
    --bg-input: #3b4252;
    --text-primary: #f0f3f6;
    --text-muted: #9aa2b1;
    --accent-blue: #3b82f6;
    --accent-blue-hover: #2563eb;
    --accent-green: #10b981;
    --accent-green-hover: #059669;
    --accent-red: #ef4444;
    --accent-red-hover: #dc2626;
    --accent-orange: #f59e0b;
    --border-color: #3e4451;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    padding-bottom: 40px;
}

/* Top Update Banner */
.update-banner {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: #ffffff;
    padding: 10px 16px;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
    position: sticky;
    top: 0;
    z-index: 100;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.update-banner-content {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.update-banner-icon {
    font-size: 18px;
}

.update-banner-text {
    font-size: 14px;
    font-weight: 600;
    flex: 1;
}

.update-now-btn {
    background-color: #ffffff;
    color: #4f46e5;
    border: none;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: transform 0.15s ease, background-color 0.2s;
    white-space: nowrap;
}

.update-now-btn:active {
    transform: scale(0.96);
}

.update-now-btn:hover {
    background-color: #f3f4f6;
}

/* Header */
.app-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 16px;
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.child-selector {
    display: flex;
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 3px;
    gap: 4px;
    width: 100%;
}

.child-tab {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 8px 14px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.child-tab.active {
    background-color: var(--accent-blue);
    color: #ffffff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.child-avatar {
    font-size: 16px;
}

/* Caregiver Bar in Header */
.caregiver-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(0, 0, 0, 0.2);
    padding: 4px 8px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.caregiver-bar-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.caregiver-chips {
    display: flex;
    gap: 6px;
    flex: 1;
}

.cg-chip {
    flex: 1;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 5px 8px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
}

.cg-chip:hover {
    background-color: #4c566a;
}

.cg-chip.active {
    background-color: #4f46e5;
    border-color: #6366f1;
    color: #ffffff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

/* Network Banner */
.network-banner {
    padding: 5px 16px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.network-banner.online {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--accent-green);
    border-bottom: 1px solid rgba(16, 185, 129, 0.2);
}

.network-banner.offline {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
    border-bottom: 1px solid rgba(239, 68, 68, 0.3);
}

.network-banner.syncing {
    background-color: rgba(245, 158, 11, 0.15);
    color: var(--accent-orange);
    border-bottom: 1px solid rgba(245, 158, 11, 0.3);
}

.network-banner .dot {
    font-size: 10px;
}

/* Main Content */
.main-content {
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* Card */
.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.15);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.card-header h2 {
    font-size: 17px;
    font-weight: 600;
    flex: 1;
}

.card-icon {
    font-size: 20px;
}

/* Sleep Card */
.status-badge {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 12px;
    letter-spacing: 0.5px;
}

.status-badge.awake {
    background-color: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
}

.status-badge.sleeping {
    background-color: rgba(245, 158, 11, 0.15);
    color: var(--accent-orange);
    border: 1px solid var(--accent-orange);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.6; }
    100% { opacity: 1; }
}

.timer-display-box {
    text-align: center;
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 14px;
    margin-bottom: 14px;
    border: 1px solid var(--border-color);
}

.timer-sublabel {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sleep-timer {
    font-size: 38px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
    margin: 4px 0;
    letter-spacing: 1px;
}

.sleep-started-info {
    font-size: 12px;
    color: var(--text-muted);
    min-height: 16px;
}

/* Buttons */
.action-btn {
    width: 100%;
    border: none;
    border-radius: var(--radius-md);
    padding: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.sleep-start-btn {
    background-color: var(--accent-green);
    color: white;
}

.sleep-start-btn:hover {
    background-color: var(--accent-green-hover);
}

.sleep-stop-btn {
    background-color: var(--accent-red);
    color: white;
}

.sleep-stop-btn:hover {
    background-color: var(--accent-red-hover);
}

.med-save-btn {
    background-color: var(--accent-blue);
    color: white;
}

.med-save-btn:hover {
    background-color: var(--accent-blue-hover);
}

.primary-btn {
    background-color: var(--accent-blue);
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.btn-cancel {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.btn-cancel:hover {
    background-color: #4c566a;
}

/* Forms */
.form-group {
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 6px;
}

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

input[type="datetime-local"] {
    color-scheme: dark;
}

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

.med-chips, .preset-caregivers {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 6px;
}

.modal-caregivers {
    display: flex;
    gap: 10px;
    width: 100%;
}

.large-chip {
    flex: 1;
    padding: 10px;
    font-size: 15px;
    font-weight: 600;
}

.custom-caregiver-row {
    display: flex;
    gap: 8px;
    margin-top: 6px;
}

.chip-btn {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 5px 10px;
    border-radius: 14px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.chip-btn:hover, .chip-btn.active {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

/* Activity Log */
.log-header {
    justify-content: space-between;
}

.sync-status {
    font-size: 11px;
    color: var(--text-muted);
}

.logs-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.log-date-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.log-date-header {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border-color);
}

.log-item {
    background-color: var(--bg-primary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
}

.log-item.pending-sync {
    border-style: dashed;
    border-color: var(--accent-orange);
}

.pending-badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    color: var(--accent-orange);
    background-color: rgba(245, 158, 11, 0.15);
    padding: 1px 5px;
    border-radius: 4px;
    margin-left: 6px;
}

.log-item-icon {
    font-size: 22px;
}

.log-item-body {
    flex: 1;
}

.log-item-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.log-item-subtitle {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.log-item-notes {
    font-size: 12px;
    color: #cbd5e1;
    margin-top: 4px;
    background-color: rgba(255,255,255,0.05);
    padding: 4px 8px;
    border-radius: 4px;
}

/* Action Buttons inside Log Item */
.log-item-actions {
    display: flex;
    gap: 4px;
    align-items: center;
}

.log-action-btn {
    background: transparent;
    border: 1px solid transparent;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    opacity: 0.7;
    transition: all 0.2s ease;
}

.log-action-btn:hover {
    opacity: 1;
    background-color: var(--bg-input);
    border-color: var(--border-color);
}

.log-action-btn.delete-btn:hover {
    background-color: rgba(239, 68, 68, 0.2);
    border-color: var(--accent-red);
}

.empty-state, .loading-state {
    text-align: center;
    color: var(--text-muted);
    padding: 24px 0;
    font-size: 14px;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 16px;
}

.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 22px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
    gap: 14px;
}

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

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 18px;
    cursor: pointer;
    padding: 4px;
}

.close-btn:hover {
    color: var(--text-primary);
}

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

.delete-modal-content p {
    font-size: 14px;
    color: #cbd5e1;
    line-height: 1.5;
}

/* App Footer */
.app-footer {
    margin-top: auto;
    padding: 24px 16px 12px 16px;
    text-align: center;
}

.caregiver-footer-info {
    font-size: 13px;
    color: var(--text-muted);
    background-color: var(--bg-card);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.caregiver-footer-info strong {
    color: var(--text-primary);
}

.footer-divider {
    color: var(--border-color);
}

.switch-caregiver-link {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
}

.switch-caregiver-link:hover {
    text-decoration: underline;
    color: var(--accent-blue-hover);
}

/* Quick Actions Section (Baby Connect style action triggers) */
.quick-actions-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 8px;
}

.quick-actions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.quick-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-card);
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: all 0.2s ease;
}

.quick-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

.med-action-btn {
    border-left: 4px solid var(--accent-blue);
}

.metric-action-btn {
    border-left: 4px solid var(--accent-purple);
}

.action-icon {
    font-size: 20px;
}

.action-label {
    letter-spacing: 0.3px;
}

.metric-quick-chips {
    display: flex;
    justify-content: space-between;
    gap: 8px;
}

.metric-chip-btn {
    flex: 1;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 8px 10px;
    border-radius: 18px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: center;
}

.metric-chip-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-purple);
    background-color: var(--bg-input);
}

/* Metric Modal Selectors & Input */
.metric-type-selector {
    display: flex;
    gap: 6px;
    background-color: var(--bg-input);
    padding: 4px;
    border-radius: var(--radius-md);
    margin-bottom: 6px;
}

.metric-type-selector .child-tab {
    flex: 1;
    font-size: 12px;
    padding: 8px 4px;
}

.metric-input-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.metric-unit-chips {
    display: flex;
    gap: 4px;
    flex-wrap: nowrap;
}

.metric-unit-chip {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.metric-unit-chip.active {
    background-color: var(--accent-purple);
    border-color: var(--accent-purple);
    color: white;
}