:root {
    --bg-color: #0F1014;
    --surface-color: #1A1B22;
    --accent-color: #0057FF;
    --positive-color: #32D74B;
    --negative-color: #FF453A;
    --text-primary: #FFFFFF;
    --text-secondary: #8E8E93;
    --safe-area-top: env(safe-area-inset-top);
    --safe-area-bottom: env(safe-area-inset-bottom);

    /* Category Colors */
    --cat-food: #FF9500;
    --cat-transport: #007AFF;
    --cat-shopping: #FF2D55;
    --cat-bills: #5856D6;
    --cat-health: #32D74B;
    --cat-entertainment: #AF52DE;
    --cat-income: #30D158;
    --cat-other: #8E8E93;

    --tab-bar-bg: rgba(15, 16, 20, 0.85);
    --border-color: rgba(255, 255, 255, 0.05);
    --input-bg: rgba(255, 255, 255, 0.05);
}

[data-theme="light"] {
    --bg-color: #F2F2F7;
    --surface-color: #FFFFFF;
    --text-primary: #000000;
    --text-secondary: #8E8E93;
    --accent-color: #0057FF;
    --tab-bar-bg: rgba(255, 255, 255, 0.85);
    --border-color: rgba(0, 0, 0, 0.05);
    --input-bg: rgba(0, 0, 0, 0.05);
}

[data-theme="kyla"] {
    --bg-color: #26011B;
    --surface-color: #3D022B;
    --text-primary: #FFFFFF;
    --text-secondary: #FFB6E0;
    --accent-color: #FF2D95;
    --positive-color: #32D74B;
    --negative-color: #FF453A;
    --tab-bar-bg: rgba(38, 1, 27, 0.85);
    --border-color: rgba(255, 45, 149, 0.2);
    --input-bg: rgba(255, 45, 149, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

body {
    font-family: 'Outfit', -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding-top: var(--safe-area-top);
    padding-bottom: calc(var(--safe-area-bottom) + 84px);
}

.view {
    display: none;
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    padding-bottom: 40px;
    -webkit-overflow-scrolling: touch;
}

.view.active {
    display: block;
    animation: viewIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

/* Header Styling */
header {
    padding: 16px 0 24px;
    position: sticky;
    top: 0;
    background-color: var(--bg-color);
    z-index: 50;
}

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

.header-titles {
    display: flex;
    flex-direction: column;
}

.date-today {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

h1 {
    font-size: 34px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.icon-btn {
    background: var(--surface-color);
    border: none;
    color: var(--accent-color);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.2s;
}

.icon-btn:active {
    transform: scale(0.9);
    background-color: rgba(255, 255, 255, 0.1);
}

.icon-btn-small {
    background: rgba(255, 255, 255, 0.05);
    border: none;
    color: var(--accent-color);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

/* Cards & Sections */
.card {
    background-color: var(--surface-color);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 24px;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.card.clickable:active {
    transform: scale(0.98);
    background-color: rgba(255, 255, 255, 0.03);
}

.balance-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Outlook Card */
.outlook-card {
    padding: 20px 24px;
    margin-bottom: 24px;
    text-align: center;
}

.outlook-item.centered {
    align-items: center;
}

.outlook-value-large {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--accent-color);
}

.outlook-value-large.negative { color: var(--negative-color); }

.label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 4px;
    display: block;
}

h2 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.edit-indicator {
    color: var(--text-secondary);
    opacity: 0.5;
}

/* Progress Ring */
.budget-section {
    display: flex;
    justify-content: center;
    padding: 20px 0 40px;
}

.ring-container {
    position: relative;
    width: 240px;
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-ring {
    transform: rotate(-90deg);
}

.progress-ring__bar {
    transition: stroke-dashoffset 1s cubic-bezier(0.16, 1, 0.3, 1), stroke 0.3s;
}

.ring-content {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.amount {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.subtext {
    font-size: 15px;
    color: var(--text-secondary);
    margin-top: -2px;
}

.badge {
    margin-top: 10px;
    background-color: rgba(0, 87, 255, 0.1);
    color: var(--accent-color);
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
}

/* Insight Card */
.insight-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-left: 4px solid var(--accent-color);
}

.insight-icon {
    font-size: 24px;
}

#smart-insight {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
}

/* Segmented Control */
.segmented-control {
    background-color: var(--surface-color);
    border-radius: 14px;
    display: flex;
    padding: 4px;
    margin-bottom: 24px;
}

.segment {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 10px;
    font-size: 14px;
    font-weight: 700;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.segment.active {
    background-color: var(--accent-color);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 87, 255, 0.2);
}

.flow-panel {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.flow-panel.active {
    display: block;
}

/* Flow Banner */
.flow-banner {
    background-color: var(--surface-color);
    border-radius: 18px;
    padding: 16px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.banner-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.positive .banner-icon {
    color: var(--positive-color);
}

.negative .banner-icon {
    color: var(--negative-color);
}

.banner-text h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 2px;
}

.banner-text p {
    font-size: 13px;
    color: var(--text-secondary);
}

.flow-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.flow-item {
    background-color: var(--surface-color);
    border-radius: 16px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    transition: transform 0.2s;
}

.flow-item:active {
    transform: scale(0.98);
    background-color: rgba(255, 255, 255, 0.05);
}

.flow-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent-color);
}

.flow-item.positive .flow-dot {
    background-color: var(--positive-color);
}

.flow-item.negative .flow-dot {
    background-color: var(--negative-color);
}

/* Action Bar */
.action-bar {
    margin-bottom: 32px;
}

.primary-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-color), #0047CC);
    color: white;
    border: none;
    border-radius: 18px;
    padding: 20px;
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(0, 87, 255, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}

.primary-btn:active {
    transform: scale(0.97);
    box-shadow: 0 4px 12px rgba(0, 87, 255, 0.2);
}

/* Recent Transactions */
.recent-section {
    margin-top: 10px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding: 0 4px;
}

h3 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.transaction-list {
    display: flex;
    flex-direction: column;
    background-color: var(--surface-color);
    border-radius: 20px;
    overflow: hidden;
}

.transaction-item {
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s;
}

.transaction-item:active {
    background-color: rgba(255, 255, 255, 0.05);
}

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

.cat-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.trans-info {
    flex: 1;
    min-width: 0;
}

.trans-cat {
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 2px;
}

.trans-note {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.trans-amount {
    font-weight: 700;
    font-size: 17px;
    letter-spacing: -0.01em;
}

/* Tab Bar Styling */
.tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(84px + var(--safe-area-bottom));
    background-color: var(--bg-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding-bottom: var(--safe-area-bottom);
    border-top: 1px solid var(--border-color);
    z-index: 100;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background-color: var(--tab-bar-bg);
}

.tab-item {
    background: none;
    border: none;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    width: 80px;
    transition: color 0.2s;
}

.tab-item svg {
    transition: transform 0.2s cubic-bezier(0.17, 0.67, 0.83, 0.67);
}

.tab-item.active {
    color: var(--accent-color);
}

.tab-item.active svg {
    transform: translateY(-2px) scale(1.1);
}

/* Categories List Styling */
.category-list-full {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background-color: var(--surface-color);
    border-radius: 20px;
    overflow: hidden;
}

.category-row {
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
}

.category-row:active {
    background-color: rgba(255, 255, 255, 0.05);
}

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

/* Settings Styling */
.settings-group {
    margin-bottom: 32px;
}

.settings-group h3 {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-left: 4px;
}

.settings-card {
    padding: 0;
    overflow: hidden;
}

.settings-row {
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

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

.settings-info {
    display: flex;
    align-items: center;
    gap: 14px;
}

.settings-icon-wrapper {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.settings-icon-wrapper.purple {
    background-color: #AF52DE;
}

.settings-icon-wrapper.blue {
    background-color: #007AFF;
}

.settings-icon-wrapper.indigo {
    background-color: #5856D6;
}

.settings-icon-wrapper.teal {
    background-color: #5AC8FA;
}

.settings-icon-wrapper.red {
    background-color: #FF3B30;
}

.settings-icon-wrapper.green {
    background-color: #34C759;
}

.settings-icon-wrapper.orange {
    background-color: #FF9500;
}

.settings-label {
    font-weight: 500;
    font-size: 16px;
}

.settings-text-block {
    display: flex;
    flex-direction: column;
}

.settings-status {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
}

.settings-status.active-indicator {
    color: var(--accent-color);
}

.settings-value {
    font-size: 16px;
    color: var(--text-secondary);
    margin-right: 8px;
}

.settings-select {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 16px;
    text-align: right;
    cursor: pointer;
}

.settings-select.wide {
    width: 100%;
    text-align: left;
    background-color: var(--bg-color);
    padding: 12px;
    border-radius: 12px;
    margin-top: 4px;
}

.danger-text {
    color: var(--negative-color) !important;
}

/* Switch Styling */
.switch {
    position: relative;
    display: inline-block;
    width: 51px;
    height: 31px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--input-bg);
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 27px;
    width: 27px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: .4s;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
}

input:checked+.slider {
    background-color: var(--positive-color);
}

input:checked+.slider:before {
    transform: translateX(20px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

/* App Info */
.app-info {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.streak-badge {
    background-color: var(--surface-color);
    padding: 10px 20px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.flame {
    font-size: 18px;
}

.app-version {
    font-size: 12px;
    color: var(--text-secondary);
    opacity: 0.5;
}

/* Modal Styling */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: none;
}

.modal.active {
    display: flex;
    align-items: flex-end;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    width: 100%;
    background-color: var(--surface-color);
    border-radius: 32px 32px 0 0;
    padding: 24px;
    padding-bottom: calc(32px + var(--safe-area-bottom));
    animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content.full-height {
    height: 95vh;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    position: sticky;
    top: 0;
    background-color: var(--surface-color);
    z-index: 10;
    padding-bottom: 8px;
}

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

.close-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--text-primary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.amount-input-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
}

.amount-input-container.small {
    margin-bottom: 0;
    justify-content: flex-start;
    background-color: var(--bg-color);
    padding: 12px;
    border-radius: 12px;
}

.currency {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-secondary);
}

.small .currency {
    font-size: 24px;
}

#expense-amount,
#flow-amount {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 64px;
    font-weight: 700;
    width: 220px;
    text-align: center;
    outline: none;
    font-family: inherit;
    letter-spacing: -0.02em;
}

#flow-amount {
    font-size: 32px;
    text-align: left;
    width: 100%;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    display: block;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.cat-bubble {
    width: 60px;
    height: 60px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    transition: transform 0.2s cubic-bezier(0.17, 0.67, 0.83, 0.67);
}

.category-item.selected .cat-bubble {
    transform: scale(1.15);
    box-shadow: 0 0 0 3px white;
}

.cat-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
}

#expense-note,
#flow-name {
    width: 100%;
    background-color: var(--bg-color);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 16px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 16px;
    margin-bottom: 0;
}

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

.save-btn {
    flex: 1;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 18px;
    padding: 20px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
}

.delete-btn-modal {
    background-color: rgba(255, 69, 58, 0.1);
    color: var(--negative-color);
    border: none;
    border-radius: 18px;
    padding: 20px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
}

.empty-state {
    padding: 60px 20px;
    text-align: center;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.summary-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.summary-info h3 {
    font-size: 32px;
    font-weight: 700;
}

.summary-icon {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.05);
}

.summary-icon.negative {
    color: var(--negative-color);
}

.summary-icon.positive {
    color: var(--positive-color);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}