:root {
    --primary-color: #2e7d32;
    --secondary-color: #4caf50;
    --danger-color: #ef5350;
    --edit-color: #ffa000;
    --bg-color: #f1f8e9;
    --card-bg: #ffffff;
    --text-color: #1b5e20;
    --text-muted: #66bb6a;
    --border-color: #e8f5e9;
    --border-radius: 20px;
    --shadow: 0 4px 12px rgba(0,0,0,0.06);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.4;
    padding-bottom: 40px;
}

.app-container {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
}

.hidden { display: none !important; }

header {
    padding: 20px 0;
}

.header-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

header h1 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
}

.sync-status {
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 10px;
}

.sync-status.online { background: #e8f5e9; color: var(--primary-color); }
.sync-status.offline { background: #ffebee; color: var(--danger-color); }

/* Overlays */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
}

.overlay-content {
    max-width: 400px;
    text-align: center;
}

.overlay h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.divider {
    margin: 20px 0;
    position: relative;
    text-align: center;
}

.divider::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--border-color);
    z-index: 1;
}

.divider span {
    background: var(--card-bg);
    padding: 0 10px;
    position: relative;
    z-index: 2;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--text-muted);
}

/* Balance Card */
.balance-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 30px 20px;
    border-radius: 28px;
    text-align: center;
    box-shadow: 0 12px 24px rgba(46, 125, 50, 0.2);
    margin-bottom: 20px;
}

.balance-card h2 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    opacity: 0.85;
    margin-bottom: 0;
}

.balance-amount {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 15px;
}

/* Progress Bar */
.budget-bar {
    width: 100%;
    height: 10px;
    background: rgba(255,255,255,0.25);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 10px;
}

.budget-progress {
    height: 100%;
    width: 0%;
    background: #fff;
    transition: width 0.5s ease;
}

.total-stats {
    display: flex;
    justify-content: space-around;
    font-weight: 700;
    font-size: 0.9rem;
}

.until-date {
    font-size: 0.85rem;
    opacity: 0.75;
}

/* Card Styling */
.card {
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

.card-header h2, .card-header h3 {
    margin-bottom: 0 !important;
}

.header-title-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-controls {
    display: flex;
    align-items: center;
    gap: 6px;
}

.drag-handle {
    cursor: grab;
    font-size: 1.1rem;
    color: var(--text-muted);
    padding: 2px 6px;
    user-select: none;
    touch-action: none;
    opacity: 0.7;
    transition: opacity 0.2s, transform 0.1s;
}

.balance-card .drag-handle {
    color: white;
}

.drag-handle:hover, .drag-handle:active {
    opacity: 1;
    cursor: grabbing;
}

.card.dragging, .balance-card.dragging {
    opacity: 0.65;
    transform: scale(1.02);
    box-shadow: 0 12px 28px rgba(0,0,0,0.15);
    z-index: 10;
}

h3 {
    margin-bottom: 18px;
    font-size: 1.2rem;
    font-weight: 800;
}

/* Form Elements */
.input-row {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.input-group {
    flex: 1;
    margin-bottom: 12px;
}

.input-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--text-muted);
}

input, select {
    width: 100%;
    padding: 14px;
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    background-color: #fafdfb;
    color: var(--text-color);
}

.frequency-row {
    margin: 18px 0;
}

.freq-inputs {
    display: flex;
    gap: 12px;
}

.freq-inputs input {
    width: 80px;
}

.helper-text, .small-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
    margin-top: 5px;
}

.tiny-text {
    font-size: 0.65rem;
    color: var(--danger-color);
    margin-top: 5px;
}

/* Buttons & Action Icons */
button {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s;
}

button:active {
    transform: scale(0.97);
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
    margin-bottom: 10px;
}

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

.small-btn {
    width: auto;
    padding: 6px 12px;
    font-size: 0.78rem;
    background-color: var(--border-color);
    color: var(--primary-color);
    border-radius: 8px;
}

.icon-svg {
    width: 15px;
    height: 15px;
    display: inline-block;
    vertical-align: middle;
    pointer-events: none;
}

.icon-action-btn {
    width: 32px !important;
    height: 32px !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 8px !important;
    background-color: var(--border-color) !important;
    color: var(--primary-color) !important;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color 0.2s, transform 0.1s;
}

.icon-action-btn:hover {
    background-color: #c8e6c9 !important;
}

.danger-btn, .danger-icon-btn {
    background-color: #ffebee !important;
    color: var(--danger-color) !important;
}

.danger-icon-btn:hover {
    background-color: #ffcdd2 !important;
}

.action-icon {
    background: none !important;
    border: none !important;
    cursor: pointer;
    padding: 4px !important;
    opacity: 0.8;
    transition: opacity 0.2s, transform 0.1s, background-color 0.2s;
    width: 28px !important;
    height: 28px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 6px !important;
}

.action-icon:hover {
    opacity: 1;
    transform: scale(1.1);
    background-color: var(--border-color) !important;
}

/* Unified Add Button Style */
.add-action-btn {
    background-color: var(--primary-color) !important;
    color: white !important;
    border: none !important;
    border-radius: 8px !important;
    padding: 5px 12px !important;
    font-size: 0.78rem !important;
    font-weight: 800 !important;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    gap: 4px;
    white-space: nowrap;
    width: auto !important;
}

.add-action-btn:hover {
    background-color: #236325 !important;
}

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

.text-btn {
    background: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-decoration: underline;
    margin-top: 0;
    padding: 0 4px;
}

/* Compact Forms & Cards */
.compact-card {
    padding: 18px 20px;
}

.compact-row {
    margin-bottom: 8px !important;
}

.flex-1 { flex: 1; }
.flex-2 { flex: 2; }

.compact-freq {
    display: flex;
    gap: 6px;
}

.compact-freq input {
    width: 55px !important;
    padding: 10px 8px !important;
}

.compact-freq select {
    padding: 10px 6px !important;
}

.compact-income-row {
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
}

.compact-income-row input {
    padding: 10px 12px;
    font-size: 0.9rem;
}

.compact-income-row input[type="text"] { flex: 2; }
.compact-income-row input[type="number"] { flex: 1; }

.compact-income-list {
    max-height: 130px;
    overflow-y: auto;
    padding-right: 4px;
}

.compact-income-list::-webkit-scrollbar {
    width: 4px;
}

.compact-income-list::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}

.compact-income-list li {
    padding: 6px 0 !important;
    font-size: 0.88rem;
}

.compact-list li {
    padding: 8px 0 !important;
}

.compact-sync-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    background: #f9fbf9;
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px dashed var(--text-muted);
    margin-bottom: 12px;
    font-size: 0.8rem;
}

.sync-key-code {
    font-family: monospace;
    font-size: 0.95rem;
    letter-spacing: 1px;
}

.compact-footer-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
}

.reset-link {
    color: var(--danger-color) !important;
}

/* Sync Info Card */
.sync-info-card {
    background: #f9fbf9;
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px dashed var(--text-muted);
}

.sync-key-display {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    padding: 10px;
    border-radius: 8px;
    margin: 10px 0;
    border: 1px solid var(--border-color);
}

.sync-key-display strong {
    font-family: monospace;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

/* Item Lists & Schedule Scroller */
.item-list {
    list-style: none;
}

#transaction-list {
    max-height: 220px;
    overflow-y: auto;
    padding-right: 6px;
}

#transaction-list::-webkit-scrollbar {
    width: 6px;
}

#transaction-list::-webkit-scrollbar-track {
    background: var(--border-color);
    border-radius: 4px;
}

#transaction-list::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}

#transaction-list::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

.item-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.item-name {
    font-weight: 700;
    font-size: 1rem;
}

.item-details {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.item-right {
    text-align: right;
}

.item-amount {
    font-weight: 800;
    font-size: 1rem;
}

.income-val { color: var(--secondary-color); }
.trans-val { color: var(--danger-color); }

.recurrence-badge {
    background: var(--border-color);
    padding: 3px 8px;
    border-radius: 8px;
    font-size: 0.65rem;
    font-weight: 750;
    color: var(--primary-color);
    margin-left: 8px;
}

.item-actions {
    margin-top: 3px;
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

/* Planner Results */
.planner-results {
    background: #e0f2f1;
    padding: 15px;
    border-radius: 12px;
    margin-top: 15px;
    border: 1px solid #b2dfdb;
}

.planner-results p {
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #00695c;
}

.planner-mode-toggle {
    display: flex;
    background: #e0f2f1;
    padding: 4px;
    border-radius: 10px;
    gap: 4px;
}

.mode-radio {
    flex: 1;
    text-align: center;
    padding: 8px 10px;
    font-size: 0.8rem;
    font-weight: 700;
    color: #00695c;
    border-radius: 8px;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.mode-radio input {
    width: auto !important;
    margin: 0 !important;
    accent-color: var(--primary-color);
}

.mode-radio:has(input:checked) {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.small-text-inline {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: normal;
}

.result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 15px;
}

.result-item {
    display: flex;
    flex-direction: column;
}

.result-label {
    font-size: 0.7rem;
    color: #00796b;
    text-transform: uppercase;
    font-weight: 800;
}

.result-item strong {
    font-size: 1.2rem;
    color: #004d40;
}

#btn-add-goal-to-schedule {
    font-size: 0.8rem;
    color: var(--primary-color);
}

.item-muted {
    opacity: 0.5;
}

.item-muted .trans-val {
    color: var(--text-muted);
}

.edit-action { color: var(--edit-color); }
.del-action { color: var(--danger-color); opacity: 0.75; }

.footer-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.account-row {
    display: flex;
    gap: 10px;
}

/* Responsive Desktop Masonry Layout */
@media (min-width: 800px) {
    .app-container {
        max-width: 1080px;
        padding: 30px;
    }

    header {
        padding: 20px 0 28px;
    }

    header h1 {
        font-size: 2.6rem;
    }

    .header-main {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    main {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 8px;
        gap: 20px;
        align-items: start;
    }

    main > section, main > div {
        width: 100%;
        margin-bottom: 0 !important;
        transition: grid-row-end 0.25s ease, transform 0.2s ease, box-shadow 0.2s ease;
    }

    .card {
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .card:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    }
}