/* Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg: #f5f5f7;
    --bg-card: #ffffff;
    --text: #1d1d1f;
    --text-secondary: #86868b;
    --border: #d2d2d7;
    --primary: #007aff;
    --primary-dark: #0056b3;
    --success: #34c759;
    --danger: #ff3b30;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --radius: 12px;
    --radius-lg: 20px;
}

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

[x-cloak] {
    display: none !important;
}

/* Screen Layout */
.screen {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

header h1 {
    font-size: 20px;
    font-weight: 600;
}

main {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.spacer {
    width: 60px;
}

/* Buttons */
button {
    font-family: inherit;
    font-size: 16px;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

.btn-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.btn-back {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--primary);
    font-size: 16px;
    min-width: 60px;
}

.btn-text {
    color: var(--primary);
    font-size: 16px;
    padding: 8px 12px;
}

.btn-primary {
    background: var(--primary);
    color: white;
    padding: 14px 24px;
    border-radius: var(--radius);
    font-weight: 500;
    width: 100%;
    margin-top: 16px;
}

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

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    padding: 14px 24px;
    border-radius: var(--radius);
    font-weight: 500;
}

.btn-small {
    background: var(--bg);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 14px;
}

.btn-danger {
    color: var(--danger);
}

/* Home Screen - Children Grid */
.home-screen main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.children-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 20px;
    width: 100%;
    max-width: 600px;
}

.child-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px 16px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.child-card:active {
    transform: scale(0.98);
}

.child-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 600;
}

.child-name {
    font-size: 18px;
    font-weight: 500;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state p {
    margin-bottom: 8px;
}

.empty-state .hint {
    font-size: 14px;
}

/* Chore Sections */
.chore-section {
    margin-bottom: 24px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

/* Chore List */
.chore-list {
    list-style: none;
    max-width: 600px;
    margin: 0 auto;
}

.chore-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-card);
    border-radius: var(--radius);
    margin-bottom: 12px;
    box-shadow: var(--shadow);
    transition: opacity 0.2s;
}

.chore-item.completed {
    opacity: 0.6;
}

.chore-item.completed .chore-title {
    text-decoration: line-through;
}

.chore-checkbox {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border: 3px solid var(--border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
}

.chore-item.completed .chore-checkbox {
    background: var(--success);
    border-color: var(--success);
    color: white;
}

.chore-title {
    font-size: 18px;
    flex: 1;
}

/* Parent Dashboard */
.tabs {
    display: flex;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
}

.tabs button {
    flex: 1;
    padding: 14px;
    font-size: 15px;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
}

.tabs button.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    max-width: 600px;
    margin: 0 auto;
}

.sub-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.sub-header h2 {
    font-size: 18px;
}

/* Manage Lists */
.manage-list {
    list-style: none;
}

.manage-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--bg-card);
    border-radius: var(--radius);
    margin-bottom: 12px;
    box-shadow: var(--shadow);
}

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

.item-name {
    font-size: 17px;
    font-weight: 500;
}

.item-frequency {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.item-actions {
    display: flex;
    gap: 8px;
}

/* History */
.history-filters {
    margin-bottom: 20px;
}

.history-filters select {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
}

.history-day {
    margin-bottom: 24px;
}

.history-date {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.history-child {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 12px;
    box-shadow: var(--shadow);
}

.history-child h4 {
    font-size: 16px;
    margin-bottom: 12px;
    color: var(--primary);
}

.history-child ul {
    list-style: none;
}

.history-child li {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--bg);
}

.history-child li:last-child {
    border-bottom: none;
}

.history-time {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Settings */
.settings-section {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.settings-section h3 {
    font-size: 17px;
    margin-bottom: 16px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 20px;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    width: 100%;
    max-width: 320px;
    text-align: center;
}

.modal h2 {
    font-size: 20px;
    margin-bottom: 24px;
}

/* PIN Pad */
.pin-display {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.pin-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: transparent;
}

.pin-dot.filled {
    background: var(--text);
    border-color: var(--text);
}

.pin-pad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.pin-btn {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: var(--bg);
    font-size: 24px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.pin-btn:active {
    background: var(--border);
}

.error-text {
    color: var(--danger);
    font-size: 14px;
    margin-bottom: 16px;
}

/* Prompt Modal */
.modal-prompt input {
    width: 100%;
    padding: 14px;
    font-size: 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
    text-align: center;
}

.modal-actions {
    display: flex;
    gap: 12px;
}

.modal-actions button {
    flex: 1;
}

/* Confirm Modal */
.modal-confirm p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Add Chore Modal */
.modal-add-chore {
    max-width: 360px;
    text-align: left;
}

.modal-add-chore h2 {
    text-align: center;
}

.modal-add-chore .form-group input {
    text-align: left;
}

.frequency-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.freq-btn {
    padding: 12px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
}

.freq-btn:active,
.freq-btn.active {
    border-color: var(--primary);
    background: rgba(0, 122, 255, 0.1);
    color: var(--primary);
}

.modal-add-chore .modal-actions {
    margin-top: 20px;
}

.modal-add-chore .btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Emoji Checkbox */
.checkbox-emoji {
    font-size: 32px;
    line-height: 1;
}

/* Item Status Emoji */
.item-status {
    font-size: 20px;
    margin-right: 8px;
}

.item-info {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

/* Queued Tasks Tab */
.queued-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.queued-child {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}

.queued-child-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--primary);
}

.queued-frequencies {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.queued-freq {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--bg);
}

.queued-freq:last-child {
    border-bottom: none;
}

.freq-label {
    font-weight: 500;
    color: var(--text-secondary);
}

.freq-status {
    font-size: 15px;
}

.queued-chores {
    list-style: none;
    margin: 4px 0 0 0;
    padding: 0;
}

.queued-chores li {
    font-size: 15px;
    padding: 4px 0;
}

/* iPad Landscape */
@media (min-width: 768px) and (orientation: landscape) {
    .children-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 800px;
    }

    .chore-list,
    .tab-content {
        max-width: 700px;
    }
}

/* Safe area insets for notched devices */
@supports (padding: env(safe-area-inset-top)) {
    header {
        padding-top: calc(16px + env(safe-area-inset-top));
    }

    main {
        padding-bottom: calc(20px + env(safe-area-inset-bottom));
    }
}