/* ===== Budgetr Design System ===== */

:root {
    /* Colors */
    --color-bg-primary: #0f0f0f;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #262626;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a3a3a3;
    --color-text-muted: #737373;

    --color-positive: #10b981;
    --color-positive-glow: rgba(16, 185, 129, 0.3);
    --color-negative: #ef4444;
    --color-negative-glow: rgba(239, 68, 68, 0.3);

    --color-accent: #6366f1;
    --color-accent-glow: rgba(99, 102, 241, 0.3);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    --font-size-4xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-glow-positive: 0 0 30px var(--color-positive-glow);
    --shadow-glow-negative: 0 0 30px var(--color-negative-glow);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ===== Base Styles ===== */

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

html,
body {
    height: 100%;
    font-family: var(--font-family);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== App Layout ===== */

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 500px;
    margin: 0 auto;
}

.main-content {
    flex: 1;
    overflow-y: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
    padding: var(--spacing-lg);
    padding-bottom: calc(60px + var(--spacing-lg));
}

.main-content::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
}

@media (min-width: 480px) {
    .main-content {
        padding-bottom: calc(80px + var(--spacing-lg));
    }
}

/* ===== Bottom Navigation ===== */

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(to top, var(--color-bg-primary) 85%, transparent);
    padding-top: var(--spacing-lg);
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-text-muted);
    transition: all var(--transition-normal);
    background: var(--color-bg-secondary);
    border: 1px solid transparent;
    flex: 1;
    max-width: 80px;
    min-width: 0;
}

@media (min-width: 480px) {
    .bottom-nav {
        gap: var(--spacing-md);
        padding: var(--spacing-md) var(--spacing-lg);
        padding-top: var(--spacing-xl);
    }

    .nav-item {
        padding: var(--spacing-sm) var(--spacing-lg);
        max-width: none;
        flex: none;
    }
}

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

.nav-item.active {
    color: var(--color-accent);
    background: var(--color-bg-tertiary);
    border-color: var(--color-accent);
    box-shadow: 0 0 20px var(--color-accent-glow);
}

.nav-icon {
    font-size: 24px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal);
}

.nav-item:hover .nav-icon {
    transform: scale(1.1);
}

.nav-item.active .nav-icon {
    transform: scale(1.1);
    animation: bounce 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes bounce {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.25);
    }

    100% {
        transform: scale(1.1);
    }
}

.nav-label {
    font-size: 10px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ===== Overview Page ===== */

.overview-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.balance-container {
    text-align: center;
}

.balance-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.balance-value {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    transition: color var(--transition-normal);
}

.balance-value.positive {
    color: var(--color-positive);
    text-shadow: var(--shadow-glow-positive);
}

.balance-value.negative {
    color: var(--color-negative);
    text-shadow: var(--shadow-glow-negative);
}

.balance-unit {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

.active-meter-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ===== Pulse Animation ===== */

.pulse {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--color-positive);
    border-radius: var(--radius-full);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

/* ===== Meters Page ===== */

.meters-page {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.page-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-primary);
}

.meters-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.meter-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border: 2px solid var(--color-bg-tertiary);
    border-radius: var(--radius-xl);
    background: var(--color-bg-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: inherit;
}

.meter-button:hover {
    border-color: var(--color-text-muted);
    transform: translateY(-2px);
}

.meter-button.positive {
    border-color: rgba(16, 185, 129, 0.3);
}

.meter-button.positive:hover,
.meter-button.positive.active {
    border-color: var(--color-positive);
    box-shadow: var(--shadow-glow-positive);
}

.meter-button.negative {
    border-color: rgba(239, 68, 68, 0.3);
}

.meter-button.negative:hover,
.meter-button.negative.active {
    border-color: var(--color-negative);
    box-shadow: var(--shadow-glow-negative);
}

.meter-button.active {
    transform: scale(1.02);
}

.meter-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
    text-align: center;
    word-break: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.meter-index {
    font-size: var(--font-size-xs);
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--color-text-muted);
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
    background: var(--color-bg-tertiary);
}

.meter-button.positive .meter-name {
    color: var(--color-positive);
}

.meter-button.negative .meter-name {
    color: var(--color-negative);
}

.meter-factor {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    opacity: 0.8;
}

.meter-button.positive .meter-factor {
    color: var(--color-positive);
    opacity: 0.7;
}

.meter-button.negative .meter-factor {
    color: var(--color-negative);
    opacity: 0.7;
}

.meter-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.active-info {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
}

.active-duration .label {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.active-duration .value {
    font-size: var(--font-size-xl);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    margin-left: var(--spacing-sm);
}

/* ===== Timeline Page ===== */

.timeline-page {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.period-selector {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.period-button {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    background: var(--color-bg-secondary);
    color: var(--color-text-muted);
    cursor: pointer;
    font-family: inherit;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.period-button:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text-secondary);
}

.period-button.selected {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-text-primary);
}

.chart-container {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    aspect-ratio: 2 / 1;
}

.timeline-chart {
    width: 100%;
    height: 100%;
}

.pulse-circle {
    animation: pulse-circle 2s ease-in-out infinite;
}

@keyframes pulse-circle {

    0%,
    100% {
        r: 6;
        opacity: 1;
    }

    50% {
        r: 8;
        opacity: 0.8;
    }
}

/* ===== History Page ===== */

.history-page {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-text-muted);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.empty-hint {
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
}

.events-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.event-card {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-bg-tertiary);
    transition: all var(--transition-normal);
}

.event-card.positive {
    border-left: 3px solid var(--color-positive);
}

.event-card.negative {
    border-left: 3px solid var(--color-negative);
}

.event-card.active {
    background: var(--color-bg-tertiary);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.15);
}

.event-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.event-meter-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.event-card.positive .event-meter-name {
    color: var(--color-positive);
}

.event-card.negative .event-meter-name {
    color: var(--color-negative);
}

.event-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.active-badge {
    background: rgba(99, 102, 241, 0.2);
    color: var(--color-accent);
}

.event-times {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.event-time {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.time-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.time-value {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.event-stats {
    display: flex;
    gap: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-bg-tertiary);
}

.event-stat {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-text-primary);
    font-variant-numeric: tabular-nums;
}

.stat-value.contribution.positive {
    color: var(--color-positive);
}

.stat-value.contribution.negative {
    color: var(--color-negative);
}

/* ===== Responsive ===== */

@media (min-width: 480px) {
    .meter-button {
        padding: var(--spacing-xl);
    }

    .meter-name {
        font-size: var(--font-size-2xl);
    }
}

@media (min-width: 768px) {
    .app-container {
        max-width: 600px;
    }

    .balance-value {
        font-size: 5rem;
    }
}

/* ===== Delete Button & Modal ===== */

.event-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.delete-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: var(--font-size-md);
    transition: all var(--transition-fast);
}

.delete-btn:hover {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-negative);
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-lg);
    animation: fadeIn 150ms ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-dialog {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 100%;
    border: 1px solid var(--color-bg-tertiary);
    animation: slideUp 200ms ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-dialog h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.modal-dialog p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-md);
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
}

.modal-contribution {
    padding: var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg) !important;
}

.modal-contribution .positive {
    color: var(--color-positive);
    font-weight: 600;
}

.modal-contribution .negative {
    color: var(--color-negative);
    font-weight: 600;
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

.btn-cancel,
.btn-delete {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

.btn-cancel {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
}

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

.btn-delete {
    background: var(--color-negative);
    color: white;
}

.btn-delete:hover {
    background: #dc2626;
    box-shadow: var(--shadow-glow-negative);
}

.edit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: var(--font-size-md);
    transition: all var(--transition-fast);
}

.edit-btn:hover {
    background: rgba(99, 102, 241, 0.15);
    color: var(--color-accent);
}

.btn-save {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    background: var(--color-accent);
    color: white;
}

.btn-save:hover {
    background: #5457e5;
    box-shadow: 0 0 20px var(--color-accent-glow);
}

.edit-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.edit-field {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.edit-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.edit-input {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--font-size-md);
    transition: border-color var(--transition-fast);
    color-scheme: dark;
}

.edit-input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.edit-error {
    font-size: var(--font-size-sm);
    color: var(--color-negative);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ===== Sync Page ===== */

.sync-page {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.sync-section {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-bg-tertiary);
}

.sync-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.sync-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.sync-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.export-btn {
    background: var(--color-accent);
    color: white;
}

.export-btn:hover:not(:disabled) {
    background: #5457e5;
    box-shadow: 0 0 20px var(--color-accent-glow);
}

.import-btn {
    background: var(--color-positive);
    color: white;
    margin-top: var(--spacing-md);
}

.import-btn:hover:not(:disabled) {
    background: #0d9668;
    box-shadow: var(--shadow-glow-positive);
}

.btn-icon {
    font-size: var(--font-size-lg);
}

.file-input-container {
    position: relative;
}

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

.file-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px dashed var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.file-label:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.selected-file {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.status-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

.status-message.success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-positive);
    border: 1px solid var(--color-positive);
}

.status-message.error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-negative);
    border: 1px solid var(--color-negative);
}

/* ===== Danger Zone (Factory Reset) ===== */

.danger-zone {
    border-color: rgba(239, 68, 68, 0.3);
    background: rgba(239, 68, 68, 0.05);
}

.danger-zone .section-title,
.danger-zone h3 {
    color: var(--color-negative);
}

.reset-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    background: var(--color-negative);
    color: white;
}

.reset-btn:hover {
    background: #dc2626;
    box-shadow: var(--shadow-glow-negative);
}

.setting-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

/* ===== Sync Tabs ===== */

.sync-tabs {
    display: flex;
    gap: var(--spacing-sm);
    background: var(--color-bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-bg-tertiary);
}

.tab-button {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-text-muted);
    font-family: inherit;
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.tab-button:hover {
    color: var(--color-text-secondary);
    background: var(--color-bg-tertiary);
}

.tab-button.active {
    background: var(--color-accent);
    color: white;
    box-shadow: 0 0 15px var(--color-accent-glow);
}

.tab-icon {
    font-size: var(--font-size-lg);
}

/* ===== Google Drive Section ===== */

.config-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.config-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.config-note a {
    color: var(--color-accent);
    text-decoration: none;
}

.config-note a:hover {
    text-decoration: underline;
}

.config-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.config-input-group label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}

.config-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast);
}

.config-input:focus {
    outline: none;
    border-color: var(--color-accent);
}

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

.config-btn {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.config-btn:hover:not(:disabled) {
    background: var(--color-accent);
}

.google-btn {
    background: #4285f4;
    color: white;
}

.google-btn:hover:not(:disabled) {
    background: #3367d6;
    box-shadow: 0 0 20px rgba(66, 133, 244, 0.4);
}

.signed-in-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.check-icon {
    font-size: var(--font-size-lg);
}

.backup-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.info-icon {
    font-size: var(--font-size-md);
}

.gdrive-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.backup-btn {
    background: var(--color-accent);
    color: white;
}

.backup-btn:hover:not(:disabled) {
    background: #5457e5;
    box-shadow: 0 0 20px var(--color-accent-glow);
}

.restore-btn {
    background: var(--color-positive);
    color: white;
}

.restore-btn:hover:not(:disabled) {
    background: #0d9668;
    box-shadow: var(--shadow-glow-positive);
}

.signout-section,
.reconfigure-section {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.link-button {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-family: inherit;
    font-size: var(--font-size-sm);
    cursor: pointer;
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.link-button:hover {
    color: var(--color-text-secondary);
}

.link-button.signout:hover {
    color: var(--color-negative);
}

/* ===== Auto-Sync Toggle ===== */

.auto-sync-section {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-bg-tertiary);
}

.auto-sync-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.auto-sync-label {
    font-size: var(--font-size-md);
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg-tertiary);
    transition: all var(--transition-normal);
    border-radius: var(--radius-full);
    border: 2px solid var(--color-bg-tertiary);
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 2px;
    bottom: 2px;
    background-color: var(--color-text-muted);
    transition: all var(--transition-normal);
    border-radius: 50%;
}

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

.toggle-switch input:checked+.toggle-slider::before {
    transform: translateX(24px);
    background-color: white;
}

.toggle-switch input:disabled+.toggle-slider {
    opacity: 0.5;
    cursor: not-allowed;
}

.toggle-switch input:focus+.toggle-slider {
    box-shadow: 0 0 0 2px var(--color-accent-glow);
}

/* Auto-sync Status */
.auto-sync-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
}

.auto-sync-status.syncing {
    background: rgba(99, 102, 241, 0.15);
    color: var(--color-accent);
}

.auto-sync-status.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-positive);
}

.auto-sync-status.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-negative);
}

.status-icon {
    font-size: var(--font-size-md);
}

.status-icon.spinning {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* ===== Timeular Section ===== */

.timeular-device-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.timeular-connection-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.timeular-connection-light {
    width: 0.65rem;
    height: 0.65rem;
    border-radius: 50%;
    background: #ef4444;
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.15);
    flex-shrink: 0;
}

.timeular-connection-light.connected {
    background: #10b981;
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.timeular-connection-light.connecting {
    background: #f59e0b;
    box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
    animation: pulse 1.2s ease-in-out infinite;
}

.timeular-connection-light.disconnected {
    background: #ef4444;
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.15);
}

.timeular-auto-reconnect-message {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

.timeular-auto-reconnect-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-positive);
}

.timeular-auto-reconnect-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-negative);
}

.timeular-auto-reconnect-message.info {
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
}

.timeular-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.timeular-connect-btn {
    background: #0ea5a8;
    color: white;
}

.timeular-connect-btn:hover:not(:disabled) {
    background: #0d8f91;
    box-shadow: 0 0 20px rgba(14, 165, 168, 0.35);
}

.timeular-disconnect-btn {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.timeular-disconnect-btn:hover:not(:disabled) {
    background: var(--color-bg-primary);
}

.timeular-log {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
}

.timeular-log-title {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.timeular-log-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin: 0;
    padding: 0;
}

.timeular-log-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: baseline;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.timeular-log-time {
    color: var(--color-text-secondary);
    font-variant-numeric: tabular-nums;
    min-width: 4.5rem;
}

.timeular-log-text {
    color: var(--color-text-primary);
    word-break: break-word;
}

/* ===== Meter Edit/Rename ===== */

.meter-container {
    position: relative;
}

.meter-container .meter-button {
    width: 100%;
}

.meter-actions {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-xs);
    z-index: 2;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.meter-container:hover .meter-actions {
    opacity: 1;
}

.meter-action-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--radius-md);
    background: var(--color-bg-tertiary);
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.meter-action-btn:hover {
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    transform: scale(1.1);
}

.meter-action-btn.delete:hover {
    background: rgba(239, 68, 68, 0.2);
    color: var(--color-negative);
}

.meter-edit-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-xl);
    min-height: 120px;
}

.meter-name-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-fast);
}

.meter-name-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.meter-name-input.invalid {
    border-color: var(--color-negative);
    box-shadow: 0 0 0 3px var(--color-negative-glow);
}

.edit-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.edit-action-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-md);
    transition: all var(--transition-fast);
}

.edit-action-btn.save {
    background: var(--color-positive);
    color: white;
}

.edit-action-btn.save:hover {
    background: #0d9668;
    box-shadow: var(--shadow-glow-positive);
}

.edit-action-btn.cancel {
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
}

.edit-action-btn.cancel:hover {
    background: var(--color-bg-primary);
    color: var(--color-text-secondary);
}

.validation-error {
    font-size: var(--font-size-xs);
    color: var(--color-negative);
    text-align: center;
    padding: var(--spacing-xs);
}

.char-count {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-align: right;
}

.char-count.over-limit {
    color: var(--color-negative);
}

/* ===== Add Meter ===== */

.meter-button.add-meter-btn {
    border-style: dashed;
    background: transparent;
    opacity: 0.7;
}

.meter-button.add-meter-btn:hover {
    opacity: 1;
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(99, 102, 241, 0.05);
}

.add-icon {
    font-size: 2.5rem;
    font-weight: 300;
}

.add-text {
    font-size: var(--font-size-md);
    font-weight: 500;
}

.meter-factor-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--font-size-md);
    font-weight: 500;
    text-align: center;
    transition: all var(--transition-fast);
}

.meter-factor-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

/* ===== PWA UI ===== */

.offline-banner {
    background: var(--color-negative);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-glow-negative);
    animation: slideDown 300ms ease;
}

.offline-icon {
    font-size: 1.25rem;
}

.install-prompt {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    animation: fadeIn 500ms ease;
}

.install-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.install-icon {
    font-size: 2rem;
}

.install-text {
    display: flex;
    flex-direction: column;
}

.install-title {
    font-weight: 600;
    color: var(--color-text-primary);
}

.install-desc {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.install-btn {
    background: var(--color-accent);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.install-btn:hover {
    background: #5457e5;
    box-shadow: 0 0 15px var(--color-accent-glow);
    transform: translateY(-1px);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Settings Page ===== */

.settings-page {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.settings-section {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-bg-tertiary);
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-bg-tertiary);
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.setting-item:not(:last-child) {
    border-bottom: 1px solid var(--color-bg-tertiary);
}

.setting-label {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
}

.setting-value {
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
}

.setting-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 140px;
}

.setting-select:hover {
    border-color: var(--color-accent);
}

.setting-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-glow);
}

/* Custom Language Dropdown */
.language-dropdown {
    position: relative;
    min-width: 160px;
}

.dropdown-trigger {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    text-align: left;
    font-size: var(--font-size-sm);
}

.dropdown-trigger:hover {
    border-color: var(--color-accent);
}

.dropdown-trigger::after {
    content: '';
    margin-left: auto;
    border: 4px solid transparent;
    border-top-color: var(--color-text-muted);
    transform: translateY(2px);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    left: 0;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: none;
    overflow: hidden;
    animation: slideDown 150ms ease;
}

.dropdown-menu.show {
    display: block;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.dropdown-item.selected {
    color: var(--color-accent);
    background: rgba(99, 102, 241, 0.1);
}

.flag-icon {
    width: 20px;
    height: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: 2px;
    overflow: hidden;
    box-shadow: 0 0 2px rgba(0, 0, 0, 0.2);
}

.flag-icon svg {
    height: 100%;
    object-fit: cover;
}

/* ===== Support/Donation ===== */

.support-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    background: #FFDD00;
    color: #000000;
    margin-top: var(--spacing-sm);
}

.support-btn:hover {
    background: #FFEA00;
    box-shadow: 0 0 20px rgba(255, 221, 0, 0.4);
    transform: translateY(-2px);
}

.support-btn .btn-icon {
    font-size: 1.25rem;
}

/* ===== Drag and Drop ===== */

.meter-container.dragging {
    opacity: 0.35;
    transform: scale(0.95);
    transition: all var(--transition-fast);
}

.meter-container.dragging .meter-button {
    border-style: dashed;
    border-color: var(--color-accent);
}

.meter-container.drag-over {
    transform: scale(1.03);
    transition: all var(--transition-fast);
}

.meter-container.drag-over .meter-button {
    border-color: var(--color-accent);
    box-shadow: 0 0 20px var(--color-accent-glow), inset 0 0 15px rgba(99, 102, 241, 0.08);
    background: rgba(99, 102, 241, 0.06);
}

/* ===== Toast Notifications ===== */

.toast-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    pointer-events: none;
    z-index: 2000;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5), 0 0 16px var(--color-accent-glow);
    max-width: 420px;
    width: 100%;
    pointer-events: auto;
    backdrop-filter: blur(12px);
}

.toast-enter {
    animation: toastSlideIn 300ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast-exit {
    animation: toastSlideOut 300ms ease forwards;
}

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

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

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-size: var(--font-size-lg);
    line-height: 1;
    flex-shrink: 0;
}

.toast-body {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.toast-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: var(--font-size-xs);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.toast-close:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}