/* Budgie - Budget Tracker */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary: #0d9488;
    --primary-light: #14b8a6;
    --primary-dark: #0f766e;
    --accent: #f59e0b;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg: #faf9f7;
    --surface: #ffffff;
    --surface-alt: #f3f2ef;
    --text: #1c1917;
    --text-dim: #78716c;
    --border: #e7e5e4;
}

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-text-size-adjust: 100%;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* Nav */
.navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    flex-wrap: wrap;
}

.nav-brand h1 {
    font-size: 1.15rem;
    color: var(--primary);
    font-weight: 700;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text);
    border-radius: 1px;
    transition: 0.2s ease;
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before { top: -6px; }
.hamburger::after { top: 6px; }

.nav-toggle.active .hamburger { background: transparent; }
.nav-toggle.active .hamburger::before { transform: rotate(45deg); top: 0; }
.nav-toggle.active .hamburger::after { transform: rotate(-45deg); top: 0; }

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dim);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 6px;
    transition: 0.2s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
    background: var(--surface-alt);
}

/* Main */
main {
    flex: 1;
    padding: 24px 0;
}

.page-header { margin-bottom: 24px; margin-top: 8px; }
.page-header h2 { font-size: 1.5rem; font-weight: 600; color: var(--text); }
.page-header .subtitle { color: var(--text-dim); font-size: 1rem; margin-top: 4px; }

.page-header.with-selector {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.header-top {
    width: 100%;
    margin-bottom: 4px;
}

.back-link {
    font-size: 0.9rem;
    color: var(--primary);
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}

.month-selector {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.9rem;
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
}

.month-selector:focus {
    outline: none;
    border-color: var(--primary);
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.section-header h3 {
    margin-bottom: 0;
}

.view-all-link {
    font-size: 0.85rem;
    color: var(--primary);
    text-decoration: none;
}

.view-all-link:hover {
    text-decoration: underline;
}

.more-link {
    display: block;
    text-align: center;
    padding: 12px;
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-top: 8px;
}

.more-link:hover {
    text-decoration: underline;
}

/* Expenses Page */
.expenses-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 16px;
}

.expense-count {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.expense-total {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}

.expense-list.full-list .exp-desc {
    white-space: normal;
    overflow: visible;
}

/* Summary Row */
.summary-row {
    display: flex;
    background: var(--surface);
    border-radius: 12px;
    padding: 16px 20px;
    gap: 16px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.summary-item {
    flex: 1;
    text-align: center;
    min-width: 0;
}

.summary-item .label {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--text-dim);
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.summary-item .value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.summary-item .value.spent { color: var(--primary); }
.summary-item .value.remaining { color: var(--success); }
.summary-item .value.warning { color: var(--warning); }
.summary-item .value.over-budget { color: var(--danger); }

/* Main Progress */
.main-progress { margin-bottom: 20px; }

.progress-track {
    height: 8px;
    background: var(--surface-alt);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    transition: width 0.3s;
    border-radius: 4px;
}
.progress-fill.warning { background: var(--warning); }
.progress-fill.over-budget { background: var(--danger); }

/* Sections */
.section {
    background: var(--surface);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--border);
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.section h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-dim);
    margin-bottom: 16px;
}

/* Categories */
.category-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cat-row {
    padding: 14px 16px;
    background: var(--surface-alt);
    border-radius: 10px;
    border-left: 4px solid var(--primary);
}

.cat-row.warn { border-left-color: var(--warning); }
.cat-row.over { border-left-color: var(--danger); }

.cat-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.cat-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
}

.cat-remaining {
    font-weight: 600;
    font-size: 0.9rem;
}

.cat-remaining.remaining { color: var(--success); }
.cat-remaining.warning { color: var(--warning); }
.cat-remaining.over-budget { color: var(--danger); }

.cat-mid {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.cat-amount {
    font-size: 0.85rem;
    color: var(--text-dim);
}

.cat-pct {
    font-size: 0.85rem;
    color: var(--text-dim);
    font-weight: 500;
}

.cat-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}

.cat-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 3px;
}
.cat-row.warn .cat-fill { background: var(--warning); }
.cat-row.over .cat-fill { background: var(--danger); }

/* Daily Chart */
.chart-section {
    margin-bottom: 20px;
}

.chart-container {
    height: 200px;
    position: relative;
}

/* Spending Breakdown */
.breakdown-section { margin-bottom: 20px; }

.breakdown-bar {
    display: flex;
    height: 24px;
    border-radius: 6px;
    overflow: hidden;
    background: var(--surface-alt);
    margin-bottom: 14px;
}

.breakdown-segment {
    height: 100%;
    min-width: 3px;
    transition: opacity 0.2s;
}

.breakdown-segment:hover {
    opacity: 0.8;
}

.breakdown-segment:first-child {
    border-radius: 6px 0 0 6px;
}

.breakdown-segment:last-child {
    border-radius: 0 6px 6px 0;
}

.breakdown-segment:only-child {
    border-radius: 6px;
}

.breakdown-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
}

.legend-color {
    width: 10px;
    height: 10px;
    border-radius: 2px;
    flex-shrink: 0;
}

.legend-label {
    color: var(--text);
}

.legend-value {
    color: var(--text-dim);
    font-weight: 500;
}

/* Expenses */
.expense-list {
    display: flex;
    flex-direction: column;
}

.exp-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}

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

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

.exp-desc {
    display: block;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.exp-meta {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-top: 2px;
}

.exp-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.exp-amount {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text);
}

.del-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    width: 28px;
    height: 28px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    transition: 0.2s;
}

.del-btn:hover {
    background: var(--danger);
    border-color: var(--danger);
    color: white;
}

.more-text, .empty-text {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-dim);
    padding-top: 12px;
}

.empty-text a { color: var(--primary); text-decoration: none; font-weight: 500; }

/* Add Expense Page */
.add-expense-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 200px);
    padding: 20px 0;
}

.expense-input-form {
    width: 100%;
    max-width: 400px;
}

.expense-input-form textarea {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 1.1rem;
    font-family: inherit;
    background: var(--surface);
    color: var(--text);
    resize: none;
    margin-bottom: 12px;
    transition: border-color 0.2s;
}

.expense-input-form textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.expense-input-form textarea::placeholder {
    color: var(--text-dim);
}

.expense-input-form .btn {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
}

.expense-input-form .result-message {
    margin-top: 12px;
    text-align: center;
}

.add-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 20px;
    text-align: center;
}

.add-hint {
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--text-dim);
    text-align: center;
}

/* Forms */
.expense-form-container,
.add-budget-section,
.settings-card {
    background: var(--surface);
    border-radius: 12px;
    padding: 24px;
    border: 1px solid var(--border);
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.settings-card h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--text); }
.settings-description { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 20px; line-height: 1.6; }

.day-selector { display: flex; align-items: center; gap: 12px; }

.day-selector select {
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--surface);
    color: var(--text);
}

.day-hint { color: var(--text-dim); font-size: 0.95rem; }

.expense-form, .budget-form, .settings-form { max-width: 500px; }

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--surface);
    color: var(--text);
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea { min-height: 100px; resize: vertical; }
.form-hint { font-size: 0.85rem; color: var(--text-dim); margin-top: 8px; }

.form-row {
    display: grid;
    grid-template-columns: 2fr 1fr auto;
    gap: 16px;
    align-items: end;
}

/* Buttons */
.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: 0.2s;
}

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

.btn-primary:hover:not(:disabled) { 
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.3);
}
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: 8px 14px; font-size: 0.85rem; }
.btn-block { width: 100%; }

.loader {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Messages */
.result-message {
    padding: 14px 16px;
    border-radius: 8px;
    margin-top: 16px;
    font-size: 0.95rem;
}

.result-message.success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.result-message.error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.flash-messages { margin-bottom: 16px; }

.flash-message {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.flash-message.success { background: #dcfce7; color: #166534; }
.flash-message.error { background: #fef2f2; color: #991b1b; }
.flash-message.info { background: #e0f2fe; color: #0c4a6e; }

/* Budget Management */
.budgets-list { display: flex; flex-direction: column; gap: 10px; }

.budget-item {
    background: var(--surface);
    border-radius: 10px;
    padding: 14px 18px;
    border: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.budget-item-name { font-weight: 600; font-size: 1rem; color: var(--text); }
.budget-item-limit { color: var(--text-dim); font-size: 0.9rem; }

/* Info Box */
.info-box {
    background: #f0fdfa;
    border: 1px solid #99f6e4;
    border-radius: 10px;
    padding: 16px 20px;
    margin-top: 20px;
}

.info-box h3 { font-size: 1rem; margin-bottom: 8px; color: var(--primary-dark); }
.info-box ul { list-style-position: inside; color: var(--text-dim); font-size: 0.9rem; }
.info-box li { margin-bottom: 4px; }

/* Empty State */
.empty-state {
    background: var(--surface);
    border-radius: 10px;
    padding: 32px;
    text-align: center;
    border: 1px solid var(--border);
}

.empty-state p { color: var(--text-dim); font-size: 1rem; }
.empty-state a { color: var(--primary); text-decoration: none; font-weight: 500; }

/* Footer */
footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 16px 0;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-top: auto;
}

/* Auth */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 140px);
    padding: 24px 0;
}

.auth-card {
    background: var(--surface);
    border-radius: 12px;
    border: 1px solid var(--border);
    padding: 32px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.auth-header { text-align: center; margin-bottom: 24px; }
.auth-header h2 { font-size: 1.5rem; margin-bottom: 8px; color: var(--text); }
.auth-header p { color: var(--text-dim); font-size: 0.95rem; }
.auth-form { display: flex; flex-direction: column; gap: 16px; }

.checkbox-group { display: flex; align-items: center; }
.checkbox-group label { display: flex; align-items: center; gap: 8px; font-size: 0.95rem; font-weight: normal; cursor: pointer; color: var(--text); }
.checkbox-group input[type="checkbox"] { width: auto; accent-color: var(--primary); }

.auth-footer { text-align: center; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border); }
.auth-footer p { color: var(--text-dim); font-size: 0.9rem; }
.auth-footer a { color: var(--primary); text-decoration: none; font-weight: 500; }

/* Tablet */
@media (max-width: 768px) {
    .container { padding: 0 16px; }
    .navbar .container { padding: 12px 16px; }
    main { padding: 16px 0; }
    
    .page-header h2 { font-size: 1.25rem; }
    .summary-item .value { font-size: 1.1rem; }
}

/* Mobile */
@media (max-width: 600px) {
    .nav-toggle { display: block; }
    
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        padding-top: 12px;
        border-top: 1px solid var(--border);
        margin-top: 12px;
        gap: 0;
    }
    
    .nav-links.active { display: flex; }
    .nav-links li { width: 100%; }
    .nav-links a { display: block; padding: 12px; }
    
    .container { padding: 0 12px; }
    .navbar .container { padding: 10px 12px; }
    main { padding: 12px 0; }
    
    .page-header { margin-bottom: 16px; margin-top: 4px; }
    .page-header h2 { font-size: 1.1rem; }
    
    .page-header.with-selector {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .month-selector {
        width: 100%;
        margin-top: 8px;
    }
    
    .expenses-summary {
        padding: 10px 14px;
        font-size: 0.9rem;
    }
    
    .summary-row { padding: 12px 14px; gap: 8px; margin-bottom: 12px; }
    .summary-item .label { font-size: 0.6rem; }
    .summary-item .value { font-size: 0.95rem; }
    
    .main-progress { margin-bottom: 16px; }
    .progress-track { height: 6px; }
    
    .section { padding: 14px; margin-bottom: 14px; }
    .section h3 { font-size: 0.75rem; margin-bottom: 12px; }
    
    .chart-container { height: 160px; }
    
    .breakdown-bar { height: 20px; margin-bottom: 12px; }
    .breakdown-legend { gap: 8px 14px; }
    .legend-item { font-size: 0.8rem; }
    
    .category-list { gap: 10px; }
    .cat-row { padding: 12px 14px; }
    .cat-name { font-size: 0.9rem; }
    .cat-remaining { font-size: 0.8rem; }
    .cat-amount, .cat-pct { font-size: 0.8rem; }
    
    .exp-row { padding: 12px 0; }
    .exp-desc { font-size: 0.9rem; }
    .exp-meta { font-size: 0.75rem; }
    .exp-amount { font-size: 0.9rem; }
    .del-btn { width: 26px; height: 26px; }
    
    .expense-form-container,
    .add-budget-section,
    .settings-card { padding: 16px; }
    
    .form-row { grid-template-columns: 1fr; }
    .form-group { margin-bottom: 14px; }
    
    /* Mobile Add Expense */
    .add-expense-page {
        min-height: calc(100vh - 120px);
        padding: 16px 0;
        justify-content: center;
        align-items: center;
    }
    
    .expense-input-form {
        max-width: 320px;
        width: 100%;
    }
    
    .expense-input-form textarea {
        font-size: 1rem;
        padding: 14px;
        min-height: 100px;
        border-radius: 10px;
        border-width: 1px;
    }
    
    .expense-input-form .btn {
        width: 50%;
        margin: 0 auto;
        display: block;
        padding: 14px 20px;
        font-size: 1rem;
        border-radius: 10px;
    }
    
    .add-title {
        font-size: 1.1rem;
        margin-bottom: 16px;
    }
    
    .add-hint {
        font-size: 0.75rem;
        margin-top: 14px;
    }
    
    footer { padding: 12px 0; font-size: 0.8rem; }
}

@media (max-width: 400px) {
    .container { padding: 0 10px; }
    .summary-item .value { font-size: 0.85rem; }
    .cat-name { font-size: 0.85rem; }
    .exp-desc { font-size: 0.85rem; }
}