@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&display=swap');

:root {
    --color-primary: #34d399;
    --color-primary-dark: #059669;
    --color-primary-glow: rgba(52, 211, 153, 0.25);
    --color-surface: #1a1f1c;
    --color-surface-raised: #232a26;
    --color-surface-hover: #2d3630;
    --color-border: rgba(255, 255, 255, 0.06);
    --color-text: #f0f4f1;
    --color-text-muted: #8a9a90;
    --color-danger: #f87171;
    --color-accent-warm: #fbbf24;
    --radius-lg: 1.25rem;
    --radius-xl: 1.5rem;
    --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.35);
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(52, 211, 153, 0.12), transparent),
        radial-gradient(ellipse 60% 40% at 100% 100%, rgba(251, 191, 36, 0.06), transparent),
        #0f1210;
    color: var(--color-text);
    min-height: 100vh;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    max-width: 32rem;
    margin: 0 auto;
    padding: 0 1rem 5rem;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 20;
    padding: 1rem 0 0.75rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(to bottom, #0f1210 70%, transparent);
    backdrop-filter: blur(8px);
}

.header-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.875rem;
}

.brand-icon-btn {
    background: transparent;
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    flex-shrink: 0;
    transition: transform 0.15s;
}

.brand-icon-btn:active {
    transform: scale(0.95);
}

.brand-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: #0f1210;
    box-shadow: 0 4px 16px var(--color-primary-glow);
}

.app-lock-screen {
    position: fixed;
    inset: 0;
    z-index: 40;
    background: rgba(15, 18, 16, 0.88);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.app-lock-screen.hidden {
    display: none;
}

.app-lock-panel {
    max-width: 20rem;
    text-align: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2rem 1.5rem;
    box-shadow: var(--shadow-soft);
}

.app-lock-panel i {
    font-size: 2rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

.app-lock-panel h2 {
    margin: 0 0 0.5rem;
    font-size: 1.25rem;
}

.app-lock-panel p {
    margin: 0 0 1.25rem;
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    line-height: 1.5;
}

.unlock-form {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.unlock-code-input {
    width: 100%;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1rem;
    font-size: 1.125rem;
    text-align: center;
    letter-spacing: 0.15em;
    color: var(--color-text);
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.unlock-code-input:focus {
    border-color: rgba(52, 211, 153, 0.4);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.unlock-code-input::placeholder {
    color: var(--color-text-muted);
    letter-spacing: normal;
    font-size: 0.9375rem;
}

.btn-unlock {
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: #0f1210;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    transition: transform 0.15s, box-shadow 0.15s;
}

.btn-unlock:hover {
    box-shadow: 0 4px 16px var(--color-primary-glow);
}

.btn-unlock:active {
    transform: scale(0.97);
}

.header-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0;
    line-height: 1.2;
}

.header-subtitle {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin: 0.125rem 0 0;
}

.count-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    color: var(--color-primary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    margin-top: 0.375rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.meals-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface-raised);
    color: var(--color-text);
    text-decoration: none;
    padding: 0.625rem 0.8rem;
    font-size: 0.8125rem;
    font-weight: 700;
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-done {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: var(--color-primary-dark);
    color: #fff;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, transform 0.15s;
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-done:hover {
    background: var(--color-primary);
    color: #0f1210;
}

.btn-done:active {
    transform: scale(0.97);
}

.progress-section {
    margin-top: 0.875rem;
}

.progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 0.375rem;
}

.progress-track {
    height: 0.375rem;
    background: var(--color-surface-raised);
    border-radius: 9999px;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
    border-radius: 9999px;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.add-form {
    display: flex;
    gap: 0.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 0.375rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-soft);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.add-form:focus-within {
    border-color: rgba(52, 211, 153, 0.4);
    box-shadow: var(--shadow-soft), 0 0 0 3px var(--color-primary-glow);
}

.add-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    color: var(--color-text);
    font-family: inherit;
}

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

.btn-add {
    width: 3rem;
    height: 3rem;
    border: none;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: #0f1210;
    font-size: 1.125rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.15s, box-shadow 0.15s;
    flex-shrink: 0;
}

.btn-add:hover {
    box-shadow: 0 4px 16px var(--color-primary-glow);
}

.btn-add:active {
    transform: scale(0.95);
}

.section-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
}

.section-label i {
    color: var(--color-primary);
}

.list-section {
    margin-bottom: 2rem;
}

.item-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.item {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: 0.875rem 1rem;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                background 0.15s,
                border-color 0.15s;
    animation: item-enter 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes item-enter {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.item:hover {
    background: var(--color-surface-raised);
    transform: translateX(3px);
}

.item-check {
    width: 1.375rem;
    height: 1.375rem;
    accent-color: var(--color-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.item-name {
    flex: 1;
    font-size: 1.0625rem;
    font-weight: 500;
    line-height: 1.3;
}

.btn-remove {
    background: transparent;
    border: none;
    color: var(--color-danger);
    opacity: 0.5;
    padding: 0.5rem;
    cursor: pointer;
    border-radius: 0.5rem;
    transition: opacity 0.15s, background 0.15s;
    font-size: 0.875rem;
}

.item:hover .btn-remove,
.btn-remove:focus {
    opacity: 1;
}

.btn-remove:hover {
    background: rgba(248, 113, 113, 0.12);
}

@media (hover: none) {
    .btn-remove {
        opacity: 0.8;
    }
}

.item-completed {
    border-left-color: var(--color-text-muted);
    opacity: 0.7;
}

.item-completed .item-name {
    text-decoration: line-through;
    color: var(--color-text-muted);
}

.item-completed .item-check-icon {
    color: var(--color-primary);
    font-size: 1.125rem;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-muted);
}

.empty-state i {
    font-size: 2.5rem;
    color: var(--color-surface-hover);
    margin-bottom: 0.75rem;
    display: block;
}

.empty-state p {
    margin: 0;
    font-size: 0.9375rem;
}

.history-section {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

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

.history-count {
    font-size: 0.6875rem;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    color: var(--color-text-muted);
}

.history-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.history-item {
    display: flex;
    min-width: 0;
}

.history-chip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0.625rem 0.875rem;
    font-size: 0.8125rem;
    color: var(--color-text);
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    transition: background 0.15s, border-color 0.15s;
    width: 100%;
    min-width: 0;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.history-chip:hover {
    background: var(--color-surface-hover);
    border-color: rgba(52, 211, 153, 0.3);
}

.history-chip-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.history-chip-icon {
    color: var(--color-primary);
    font-size: 0.75rem;
    flex-shrink: 0;
    opacity: 0;
    transition: opacity 0.15s;
}

.history-chip:hover .history-chip-icon {
    opacity: 1;
}

.history-delete {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    min-width: 2.5rem;
    padding: 0.625rem;
    border: 1px solid var(--color-border);
    border-left: 0;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    background: var(--color-surface);
    color: var(--color-text-muted);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.75rem;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.history-delete:hover {
    color: #f87171;
    background: rgba(248, 113, 113, 0.08);
}

.history-item.confirming-delete .history-delete {
    color: #fff;
    background: #dc2626;
    border-color: #dc2626;
}

.history-delete-label {
    font-weight: 600;
}

@media (hover: none) {
    .history-chip-icon {
        opacity: 0.7;
    }
}

.hidden {
    display: none !important;
}

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

.section-header-row .section-label {
    margin-bottom: 0;
}

.toggle-switch {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    flex-shrink: 0;
}

.toggle-switch input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: relative;
    width: 2.5rem;
    height: 1.375rem;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: 9999px;
    transition: background 0.2s;
}

.toggle-slider::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 1rem;
    height: 1rem;
    background: var(--color-text-muted);
    border-radius: 50%;
    transition: transform 0.2s, background 0.2s;
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--color-primary-dark);
    border-color: var(--color-primary);
}

.toggle-switch input:checked + .toggle-slider::after {
    transform: translateX(1.125rem);
    background: #fff;
}

.toggle-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
    white-space: nowrap;
}

.aisle-group {
    margin-top: 0.75rem;
    margin-bottom: 0.375rem;
}

.aisle-group:first-child {
    margin-top: 0;
}

.aisle-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent-warm);
    padding-left: 0.25rem;
}

.aisle-items {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.qty-controls {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-shrink: 0;
}

.qty-btn {
    width: 1.75rem;
    height: 1.75rem;
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    background: var(--color-surface-raised);
    color: var(--color-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.625rem;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.qty-btn:hover:not(:disabled) {
    background: var(--color-surface-hover);
    color: var(--color-primary);
    border-color: rgba(52, 211, 153, 0.3);
}

.qty-btn:disabled {
    opacity: 0.35;
    cursor: default;
}

.qty-value {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
    min-width: 1.25rem;
    text-align: center;
}

.history-search-wrap {
    position: relative;
    margin-bottom: 0.75rem;
}

.history-search-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    pointer-events: none;
}

.history-search {
    width: 100%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0.625rem 0.875rem 0.625rem 2.25rem;
    font-size: 0.875rem;
    color: var(--color-text);
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.history-search:focus {
    border-color: rgba(52, 211, 153, 0.4);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.history-search::placeholder {
    color: var(--color-text-muted);
}

.history-empty {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    padding: 1rem;
}

.toast-container {
    position: fixed;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 50;
    width: calc(100% - 2rem);
    max-width: 28rem;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0.875rem 1rem;
    box-shadow: var(--shadow-soft), 0 8px 32px rgba(0, 0, 0, 0.5);
    pointer-events: auto;
    animation: toast-enter 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes toast-enter {
    from {
        opacity: 0;
        transform: translateY(1rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.toast-message {
    font-size: 0.875rem;
    color: var(--color-text);
}

.toast-undo {
    background: transparent;
    border: none;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    font-family: inherit;
    flex-shrink: 0;
}

.toast-undo:hover {
    background: var(--color-primary-glow);
}