@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ================= BASE (LIGHT & GLASS DEFAULTS) ================= */
:root {
    --bg-gradient: linear-gradient(135deg, #f1f5f9, #e2e8f0, #f8fafc);
    --card-bg: rgba(255, 255, 255, 0.65);
    --card-border: 1px solid rgba(255, 255, 255, 0.8);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --income-color: #10b981;
    --expense-color: #ef4444;
    --warning-color: #f59e0b;
    --input-bg: rgba(255, 255, 255, 0.9);
    --input-border: 1px solid #cbd5e1;
    --backdrop-filter: blur(16px);
    --border-radius: 20px;
    --nav-height: 70px;
    --fab-size: 56px;
    --card-alpha: 0.65;
}

/* ================= DARK MODE OVERRIDES ================= */
body.dark-theme {
    --bg-gradient: linear-gradient(135deg, #0f172a, #1e293b, #2d1b4e);
    --card-bg: rgba(30, 41, 59, 0.65);
    --card-border: 1px solid rgba(255, 255, 255, 0.1);
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --accent: #60a5fa;
    --accent-hover: #3b82f6;
    --income-color: #34d399;
    --expense-color: #f87171;
    --warning-color: #fbbf24;
    --input-bg: rgba(30, 41, 59, 0.9);
    --input-border: 1px solid #475569;
    --card-alpha: 0.65;
}

/* ================= THEME: GLASSMORPHISM ================= */
body[data-theme="glass"] {
    --card-bg: rgba(255, 255, 255, var(--card-alpha));
    --card-border: 1px solid rgba(255, 255, 255, 0.3);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --input-bg: rgba(255, 255, 255, var(--card-alpha));
    --input-border: 1px solid rgba(255, 255, 255, 0.4);
    --backdrop-filter: blur(16px);
    --border-radius: 20px;
}

body[data-theme="glass"].dark-theme {
    --card-bg: rgba(30, 41, 59, var(--card-alpha));
    --card-border: 1px solid rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --input-bg: rgba(30, 41, 59, var(--card-alpha));
    --input-border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ================= THEME: NEUMORPHISM ================= */
body[data-theme="neumorphism"] {
    --card-bg: #e0e5ec;
    --card-border: none;
    --shadow: 8px 8px 16px rgba(0,0,0,0.1), -8px -8px 16px rgba(255,255,255,0.7);
    --input-bg: #e0e5ec;
    --input-border: none;
    --backdrop-filter: none;
    --border-radius: 18px;
}

body[data-theme="neumorphism"].dark-theme {
    --card-bg: #2a2f3a;
    --shadow: 8px 8px 16px rgba(0,0,0,0.4), -8px -8px 16px rgba(255,255,255,0.05);
    --input-bg: #2a2f3a;
}

/* ================= THEME: NORMAL (FLAT) ================= */
body[data-theme="normal"] {
    --card-bg: #ffffff;
    --card-border: 1px solid #e2e8f0;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --input-bg: #ffffff;
    --input-border: 1px solid #cbd5e1;
    --backdrop-filter: none;
    --border-radius: 12px;
}

body[data-theme="normal"].dark-theme {
    --card-bg: #1e293b;
    --card-border: 1px solid #334155;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --input-bg: #1e293b;
    --input-border: 1px solid #475569;
}

/* ================= COLOR PALETTES ================= */
body[data-palette="rose"] {
    --accent: #ec4899;
    --accent-hover: #db2777;
    --bg-gradient: linear-gradient(135deg, #fdf2f8, #fbcfe8, #fce7f3);
}
body[data-palette="rose"].dark-theme {
    --accent: #f472b6;
    --accent-hover: #ec4899;
    --bg-gradient: linear-gradient(135deg, #1e1b2e, #2d1b4e, #4a1d3a);
}

body[data-palette="lavender"] {
    --accent: #8b5cf6;
    --accent-hover: #7c3aed;
    --bg-gradient: linear-gradient(135deg, #f5f3ff, #ede9fe, #f3e8ff);
}
body[data-palette="lavender"].dark-theme {
    --accent: #a78bfa;
    --accent-hover: #8b5cf6;
    --bg-gradient: linear-gradient(135deg, #1e1b2e, #2d1b4e, #3b2d5e);
}

body[data-palette="ocean"] {
    --accent: #0ea5e9;
    --accent-hover: #0284c7;
    --bg-gradient: linear-gradient(135deg, #f0f9ff, #e0f2fe, #e0f7fa);
}
body[data-palette="ocean"].dark-theme {
    --accent: #38bdf8;
    --accent-hover: #0ea5e9;
    --bg-gradient: linear-gradient(135deg, #0c4a6e, #0f172a, #164e63);
}

body[data-palette="forest"] {
    --accent: #10b981;
    --accent-hover: #059669;
    --bg-gradient: linear-gradient(135deg, #ecfdf5, #d1fae5, #e0f2e9);
}
body[data-palette="forest"].dark-theme {
    --accent: #34d399;
    --accent-hover: #10b981;
    --bg-gradient: linear-gradient(135deg, #064e3b, #0f172a, #14532d);
}

body[data-palette="sunset"] {
    --accent: #f97316;
    --accent-hover: #ea580c;
    --bg-gradient: linear-gradient(135deg, #fff7ed, #ffedd5, #fef3c7);
}
body[data-palette="sunset"].dark-theme {
    --accent: #fb923c;
    --accent-hover: #f97316;
    --bg-gradient: linear-gradient(135deg, #431407, #1e293b, #7c2d12);
}

body[data-palette="cherry"] {
    --accent: #e11d48;
    --accent-hover: #be123c;
    --bg-gradient: linear-gradient(135deg, #fff1f2, #ffe4e6, #fecdd3);
}
body[data-palette="cherry"].dark-theme {
    --accent: #fb7185;
    --accent-hover: #e11d48;
    --bg-gradient: linear-gradient(135deg, #4c0519, #1e293b, #881337);
}

body[data-palette="slate"] {
    --accent: #64748b;
    --accent-hover: #475569;
    --bg-gradient: linear-gradient(135deg, #f8fafc, #f1f5f9, #e2e8f0);
}
body[data-palette="slate"].dark-theme {
    --accent: #94a3b8;
    --accent-hover: #64748b;
    --bg-gradient: linear-gradient(135deg, #0f172a, #1e293b, #334155);
}

/* ================= FONT SIZE & DENSITY ================= */
body[data-font-size="small"] {
    font-size: 14px;
}
body[data-font-size="medium"] {
    font-size: 16px;
}
body[data-font-size="large"] {
    font-size: 18px;
}

body[data-density="comfortable"] {
    --item-padding: 14px;
    --section-padding: 20px;
    --gap: 12px;
}
body[data-density="compact"] {
    --item-padding: 8px;
    --section-padding: 12px;
    --gap: 6px;
}

/* ================= GLOBAL STYLES ================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s, box-shadow 0.3s;
}

body {
    background: var(--bg-gradient);
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 0;
    margin: 0;
    overflow-x: hidden;
    font-size: 1rem;
}

.container {
    width: 100%;
    max-width: 500px;
    background: var(--card-bg);
    backdrop-filter: var(--backdrop-filter);
    -webkit-backdrop-filter: var(--backdrop-filter);
    border: var(--card-border);
    border-radius: 28px;
    padding: var(--section-padding, 20px) var(--section-padding, 20px) calc(var(--nav-height) + 30px);
    box-shadow: var(--shadow);
    color: var(--text-primary);
    position: relative;
    min-height: 100vh;
    margin: 10px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding: 0 5px;
}

h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.theme-toggle {
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: transform 0.2s, background 0.3s;
    backdrop-filter: var(--backdrop-filter);
    -webkit-backdrop-filter: var(--backdrop-filter);
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.glass {
    background: var(--card-bg);
    backdrop-filter: var(--backdrop-filter);
    -webkit-backdrop-filter: var(--backdrop-filter);
    border: var(--card-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.section {
    padding: var(--section-padding, 20px);
    margin-bottom: var(--gap, 20px);
    border-radius: var(--border-radius);
    animation: fadeIn 0.3s ease;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.section h2 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ================= TAB CONTENT ================= */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
    animation: slideIn 0.3s ease;
}

/* ================= SUMMARY CARDS ================= */
.summary {
    display: flex;
    justify-content: space-between;
    gap: var(--gap, 12px);
    margin-bottom: var(--gap, 20px);
}

.card {
    flex: 1;
    padding: var(--item-padding, 18px) 12px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-2px);
}

.card.balance {
    background: rgba(59, 130, 246, 0.15);
}

.card.income {
    background: rgba(16, 185, 129, 0.15);
}

.card.expense {
    background: rgba(239, 68, 68, 0.15);
}

.card p {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card h2 {
    font-size: 1.4rem;
    font-weight: 700;
}

.card h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

/* ================= NET WORTH CARD ================= */
.net-worth-card {
    background: rgba(139, 92, 246, 0.15);
    margin-bottom: var(--gap, 20px);
    text-align: center;
    padding: var(--section-padding, 20px);
}

.net-worth-card h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
}

.net-worth-card small {
    color: var(--text-secondary);
    font-size: 0.7rem;
}

/* ================= ACCOUNT BALANCES SUMMARY ================= */
.account-summary-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.account-summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

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

.account-summary-name {
    font-weight: 500;
    color: var(--text-secondary);
}

.account-summary-balance {
    font-weight: 700;
    font-size: 1.1rem;
}

/* ================= INPUTS & SELECTS ================= */
input, select {
    padding: 12px 14px;
    border: var(--input-border);
    border-radius: 12px;
    font-size: 1rem;
    width: 100%;
    background: var(--input-bg);
    color: var(--text-primary);
    backdrop-filter: var(--backdrop-filter);
    -webkit-backdrop-filter: var(--backdrop-filter);
    margin-bottom: 10px;
    transition: border 0.2s, box-shadow 0.2s;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.row {
    display: flex;
    gap: 10px;
    margin: 0;
    flex-wrap: wrap;
}

.row input, .row select {
    flex: 1;
    min-width: 120px;
    margin-bottom: 10px;
}

/* ================= BUTTONS ================= */
.btn {
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 14px 20px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
    width: 100%;
    margin-top: 10px;
    letter-spacing: 0.3px;
}

.btn:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn:active {
    transform: scale(0.98);
}

.btn-small {
    padding: 8px 14px;
    font-size: 0.85rem;
    width: auto;
    margin-top: 0;
}

/* ================= BOTTOM NAVIGATION ================= */
.bottom-nav {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 460px;
    background: var(--card-bg);
    backdrop-filter: var(--backdrop-filter);
    -webkit-backdrop-filter: var(--backdrop-filter);
    border: var(--card-border);
    border-radius: 30px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 8px 10px;
    z-index: 1000;
}

.nav-item {
    background: none;
    border: none;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.7rem;          /* original */
    cursor: pointer;
    padding: 6px 12px;           /* original */
    border-radius: 16px;
    transition: all 0.2s;
    gap: 2px;                   /* original effective gap */
    font-weight: 500;
    position: relative;
}

.nav-item.active {
    color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
}

.nav-item:hover {
    color: var(--text-primary);
}

.nav-fab {
    width: var(--fab-size);
    height: var(--fab-size);
    border-radius: 50%;
    background: var(--accent);
    color: white;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    transition: transform 0.2s, background 0.2s;
    margin: 0 8px;
}

.nav-fab:hover {
    background: var(--accent-hover);
    transform: scale(1.05);
}

.nav-fab:active {
    transform: scale(0.95);
}

/* ================= BADGE ================= */
.badge {
    position: absolute;
    top: -2px;
    right: 2px;
    background: var(--expense-color);
    color: white;
    font-size: 0.65rem;
    font-weight: bold;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* ================= MORE GRID ================= */
.more-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap, 12px);
    margin-top: 15px;
}

.more-item {
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 16px;
    padding: 20px 10px;          /* original */
    font-size: 1rem;             /* original */
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;                    /* original */
    color: var(--text-primary);
    font-weight: 500;
    transition: transform 0.2s, background 0.2s;
    backdrop-filter: var(--backdrop-filter);
    -webkit-backdrop-filter: var(--backdrop-filter);
}

.more-item:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.1);
}

/* ================= MODAL ================= */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    animation: fadeIn 0.2s ease;
}

.modal-overlay.open {
    display: flex;
}

.modal {
    width: 90%;
    max-width: 420px;
    padding: 25px;
    border-radius: 28px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    animation: slideUp 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-header h2 {
    font-size: 1.3rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 5px;
}

/* ================= TRANSACTION LIST ================= */
.transaction-list {
    list-style: none;
}

.transaction-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--item-padding, 14px);
    background: var(--card-bg);
    border-radius: 14px;
    margin-bottom: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.2s;
    animation: fadeIn 0.3s ease;
}

.transaction-list li:hover {
    transform: translateX(4px);
}

.transaction-list li.income {
    border-left: 4px solid var(--income-color);
}

.transaction-list li.expense {
    border-left: 4px solid var(--expense-color);
}

.transaction-info {
    flex: 1;
}

.transaction-desc {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 3px;
}

.transaction-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.transaction-amount {
    font-weight: 700;
    margin-right: 10px;
    font-size: 1rem;
}

.transaction-amount.income {
    color: var(--income-color);
}

.transaction-amount.expense {
    color: var(--expense-color);
}

/* ================= DELETE & PAID BUTTONS ================= */
.delete-btn, .paid-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 18px;
    padding: 5px;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s;
}

.delete-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--expense-color);
}

.paid-btn:hover {
    background: rgba(16, 185, 129, 0.1);
    color: var(--income-color);
}

/* ================= ACCOUNT, SAVINGS, LOAN, BILL ITEMS ================= */
.account-item, .savings-item, .loan-item, .bill-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--item-padding, 12px);
    background: var(--card-bg);
    border-radius: 14px;
    margin-bottom: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.2s;
}

.account-item:hover, .savings-item:hover, .loan-item:hover, .bill-item:hover {
    transform: translateX(4px);
}

.account-name, .savings-name, .loan-name, .bill-name {
    font-weight: 600;
    color: var(--text-primary);
}

.account-balance, .loan-amount, .bill-amount {
    color: var(--accent);
    font-weight: 700;
}

.bill-due {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ================= FILTERS & SEARCH ================= */
.search-container {
    margin-bottom: 10px;
}

.search-container input {
    margin-bottom: 0;
}

.filters {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
}

.filter-btn {
    flex: 1;
    background: rgba(255,255,255,0.2);
    color: var(--text-primary);
    border: var(--card-border);
    padding: 10px 8px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    backdrop-filter: var(--backdrop-filter);
    -webkit-backdrop-filter: var(--backdrop-filter);
    transition: background 0.2s, color 0.2s;
}

.filter-btn.active {
    background: var(--accent);
    color: white;
    border: none;
}

/* ================= BUDGET PROGRESS ================= */
.budget-item {
    margin-bottom: 15px;
}

.budget-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255,255,255,0.2);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 4px;
    transition: width 0.3s, background 0.3s;
}

.progress-fill.warning {
    background: var(--warning-color);
}

.progress-fill.over {
    background: var(--expense-color);
}

/* ================= SAVINGS SPECIFIC ================= */
.savings-progress {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.savings-item .progress-bar {
    width: 100%;
    margin-top: 5px;
}

.savings-update {
    width: 80px !important;
    margin-bottom: 0;
}

/* ================= CHART CONTAINERS ================= */
.chart-container {
    margin-bottom: 20px;
    position: relative;
    height: 250px;
    width: 100%;
}

/* ================= EMPTY STATES ================= */
.empty-state {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ================= COLOR-CODED NUMBERS ================= */
.positive { color: var(--income-color); }
.negative { color: var(--expense-color); }

/* ================= THEME OPTION BUTTONS ================= */
.theme-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.theme-option-btn {
    flex: 1 1 auto;
    min-width: 120px;
    padding: 10px 15px;
    border-radius: 12px;
    border: 1px solid var(--card-border, #ccc);
    background: var(--card-bg, #fff);
    color: var(--text-primary);
    cursor: pointer;
    font-weight: 500;
    box-shadow: var(--shadow, none);
    transition: transform 0.2s, box-shadow 0.2s;
}

.theme-option-btn:hover {
    transform: translateY(-2px);
}

.theme-option-btn.active {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent);
}

/* ================= SETTINGS SPECIFIC ================= */
.setting-group {
    margin-bottom: 25px;
}

.setting-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.setting-group input[type="range"] {
    width: 100%;
    margin-bottom: 5px;
}

#transparency-value {
    font-weight: 700;
    color: var(--accent);
}

.palette-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.palette-btn {
    border: 2px solid transparent;
    border-radius: 12px;
    padding: 10px;
    cursor: pointer;
    text-align: center;
    font-weight: 500;
    background: var(--card-bg);
    color: var(--text-primary);
    transition: transform 0.2s, border-color 0.2s;
    box-shadow: var(--shadow);
}

.palette-btn:hover {
    transform: translateY(-2px);
}

.palette-btn.active {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent);
}

.palette-swatch {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    margin: 0 auto 5px;
    display: block;
    border: 1px solid rgba(0,0,0,0.1);
}

/* ================= TOAST NOTIFICATIONS ================= */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: var(--card-border);
    border-radius: 12px;
    padding: 15px 20px;
    box-shadow: var(--shadow);
    color: var(--text-primary);
    font-weight: 500;
    animation: slideInRight 0.3s ease, fadeOut 0.3s ease 4s forwards;
    max-width: 300px;
}
/* ================= SVG ICON SIZING ================= */
.icon {
    width: 20px;
    height: 20px;
    vertical-align: middle;
    display: inline-block;
    flex-shrink: 0;
}

.nav-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.delete-btn .icon,
.paid-btn .icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.theme-toggle .icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.modal-close .icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* Ensure buttons with icons are centered */
button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}
/* ================= ANIMATIONS ================= */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(10px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* ================= RESPONSIVE TWEAKS ================= */
@media (max-width: 500px) {
    .container {
        margin: 0;
        border-radius: 0;
        padding: 15px 15px calc(var(--nav-height) + 20px);
    }
    .summary {
        gap: 8px;
    }
    .card {
        padding: 12px 8px;
    }
    .card h2 {
        font-size: 1.2rem;
    }
}