:root {
    --primary-color: #2E7D32;
    --primary-light: #4caf50;
    --primary-dark: #1b5e20;
    --bg-color: #f4f6f8;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --danger: #ef4444;
    --success: #10b981;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    transition: var(--transition);
    overflow-x: hidden;
}

/* Typography Helpers */
.text-danger  { color: var(--danger); }
.text-success { color: var(--success); }
.text-primary { color: var(--primary-color); }
.text-muted   { color: var(--text-muted); }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.hidden { display: none !important; }
.font-bold { font-weight: bold; }

/* Layout Containers */
.app-container {
    max-width: 600px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-lg);
    position: relative;
}

.app-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 2rem 1.5rem;
    border-bottom-left-radius: 24px;
    border-bottom-right-radius: 24px;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 10;
}
.header-title-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 4px;
}
.app-logo {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    background-color: white;
    padding: 2px;
    box-shadow: var(--shadow-sm);
}
.app-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    margin: 0;
}
.header-datetime {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-top: 4px;
}

.main-content {
    flex: 1;
    padding: 1.5rem;
    padding-bottom: 90px;
    overflow-y: auto;
}

/* Views */
.view { display: none; animation: slideUpFade 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.view.active { display: block; }

@keyframes slideUpFade {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.balance-card {
    background: linear-gradient(135deg, #1e293b, #0f172a);
    color: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.2);
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}
.balance-card::after {
    content: '';
    position: absolute;
    top: -50%; right: -20%;
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}
.balance-card h3 { font-size: 0.9rem; font-weight: 400; opacity: 0.8; margin-bottom: 0.5rem; }
.balance-card h2 { font-size: 2.2rem; font-weight: 700; }

.summary-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.summary-cards .card { display: flex; align-items: center; padding: 1rem; margin-bottom: 0; }
.card-icon {
    width: 40px; height: 40px;
    border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    margin-right: 1rem;
    font-size: 1.2rem;
}
.income-card  .card-icon { background-color: rgba(16,185,129,0.1); color: var(--success); }
.expense-card .card-icon { background-color: rgba(239,68,68,0.1); color: var(--danger); }
.card-details h4 { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }
.card-details p  { font-size: 1.1rem; font-weight: 600; margin-top: 0.2rem; }

.period-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.period-summary .card h4 { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.period-summary .card p  { font-size: 1.2rem; font-weight: 600; }

/* Progress Bar */
.progress-bar-bg {
    width: 100%; height: 12px;
    background-color: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    background-color: var(--success);
    border-radius: var(--radius-full);
    transition: width 0.5s ease, background-color 0.3s ease;
    width: 0%;
}
.progress-bar-fill.warning { background-color: #f59e0b; }
.progress-bar-fill.danger  { background-color: var(--danger); }

/* Transaction List */
.transaction-list { list-style: none; }
.transaction-item {
    background-color: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    animation: slideInRight 0.4s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}
.transaction-item:hover { background-color: rgba(0,0,0,0.02); }
[data-theme="dark"] .transaction-item:hover { background-color: rgba(255,255,255,0.02); }

.transaction-list .transaction-item:nth-child(1) { animation-delay: 0.04s; }
.transaction-list .transaction-item:nth-child(2) { animation-delay: 0.08s; }
.transaction-list .transaction-item:nth-child(3) { animation-delay: 0.12s; }
.transaction-list .transaction-item:nth-child(4) { animation-delay: 0.16s; }
.transaction-list .transaction-item:nth-child(5) { animation-delay: 0.20s; }

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}

.t-info { display: flex; align-items: center; }
.t-icon {
    width: 40px; height: 40px;
    border-radius: 50%;
    background-color: var(--bg-color);
    display: flex; align-items: center; justify-content: center;
    margin-right: 1rem;
    color: var(--primary-color);
    font-size: 1.2rem;
}
.t-details h4 { font-size: 1rem; font-weight: 500; }
.t-details p  { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.2rem; }
.t-amount { font-weight: 600; font-size: 1.1rem; }
.lock-icon { color: var(--text-muted); margin-left: 10px; font-size: 1rem; }
.locked-label { font-size: 0.75rem; }

/* Forms & Inputs */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}
input[type="text"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-main);
    font-size: 1rem;
    transition: var(--transition);
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46,125,50,0.2);
}
.short-input { width: 100px !important; text-align: center; }

/* Buttons */
.btn {
    padding: 0.8rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}
.btn:active  { transform: scale(0.97); }
.btn-block   { width: 100%; }
.btn-primary { background-color: var(--primary-color); color: white; }
.btn-primary:hover { background-color: var(--primary-dark); }
.btn-outline { background-color: transparent; border: 1px solid var(--primary-color); color: var(--primary-color); }
.btn-outline:hover { background-color: rgba(46,125,50,0.1); }
.btn-danger  { background-color: var(--danger); color: white; }
.btn-danger:hover { background-color: #dc2626; }
.btn-warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white; border: none; font-weight: 600;
    box-shadow: 0 3px 10px rgba(245,158,11,0.3);
}
.btn-warning:hover {
    background: linear-gradient(135deg, #d97706, #b45309);
    transform: translateY(-1px);
    box-shadow: 0 5px 15px rgba(245,158,11,0.4);
}
.btn-info {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: white; border: none; font-weight: 600;
    box-shadow: 0 3px 10px rgba(14,165,233,0.3);
}
.btn-info:hover {
    background: linear-gradient(135deg, #0284c7, #0369a1);
    transform: translateY(-1px);
}

/* Tabs */
.tabs {
    display: flex;
    background-color: var(--card-bg);
    border-radius: var(--radius-full);
    padding: 0.3rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}
.tab-btn {
    flex: 1; padding: 0.6rem;
    border: none; background: transparent;
    border-radius: var(--radius-full);
    font-weight: 500; color: var(--text-muted);
    cursor: pointer; transition: var(--transition);
}
.tab-btn.active {
    background-color: var(--primary-color);
    color: white; box-shadow: var(--shadow-md);
}

/* Settings */
.setting-item {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 0; border-bottom: 1px solid var(--border-color);
}
.setting-item:last-child { border-bottom: none; }
.settings-group h3 { margin-bottom: 0.25rem; }

/* Toggle Switch */
.switch { position: relative; display: inline-block; width: 50px; height: 26px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
    background-color: #ccc;
    transition: .4s cubic-bezier(0.4,0,0.2,1);
}
.slider:before {
    position: absolute; content: ""; height: 20px; width: 20px; left: 3px; bottom: 3px;
    background-color: white;
    transition: .4s cubic-bezier(0.4,0,0.2,1);
}
input:checked + .slider { background-color: var(--primary-color); }
input:focus  + .slider { box-shadow: 0 0 1px var(--primary-color); }
input:checked + .slider:before { transform: translateX(24px) scale(1.1); }
.slider.round       { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }

/* Bottom Nav */
.bottom-nav {
    position: fixed; bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 100%; max-width: 600px;
    background-color: var(--card-bg);
    display: flex; justify-content: space-around;
    padding: 0.8rem 0;
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -4px 10px rgba(0,0,0,0.05);
    z-index: 100;
}
.nav-item {
    text-decoration: none; color: var(--text-muted);
    display: flex; flex-direction: column; align-items: center;
    font-size: 0.75rem; font-weight: 500;
    transition: var(--transition);
}
.nav-item i { font-size: 1.25rem; margin-bottom: 0.3rem; }
.nav-item.active { color: var(--primary-color); }
.nav-item:hover  { color: var(--primary-color); transform: translateY(-2px); }
.nav-item.active i { animation: iconPop 0.45s cubic-bezier(0.175,0.885,0.32,1.275); }

@keyframes iconPop {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.35); }
    100% { transform: scale(1); }
}

/* Fullscreen Overlays */
.fullscreen-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--bg-color);
    z-index: 9999;
    display: flex; justify-content: center; align-items: center;
}

/* PIN Lock */
.pin-container { text-align: center; width: 100%; max-width: 320px; padding: 2rem; }
.pin-container h2 { margin-bottom: 2rem; color: var(--text-main); font-weight: 600; }
.pin-display { display: flex; justify-content: center; gap: 1rem; margin-bottom: 3rem; }
.pin-dot {
    width: 16px; height: 16px; border-radius: 50%;
    border: 2px solid var(--primary-color); transition: var(--transition);
}
.pin-dot.filled { background-color: var(--primary-color); }
.pin-keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.pin-btn {
    width: 60px; height: 60px; border-radius: 50%; border: none;
    background-color: var(--card-bg); box-shadow: var(--shadow-sm);
    font-size: 1.5rem; font-weight: 500; color: var(--text-main);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    margin: 0 auto; transition: var(--transition);
}
.pin-btn:active { background-color: var(--border-color); transform: scale(0.9); }
.pin-clear  { color: var(--danger);  font-size: 1.2rem; }
.pin-submit { color: var(--success); font-size: 1.2rem; }

/* Alert Overlay */
.alert-overlay { background: rgba(0,0,0,0.5); z-index: 2000; }
.alert-container {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 2rem; width: 90%; max-width: 400px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: popIn 0.4s cubic-bezier(0.175,0.885,0.32,1.275) forwards;
}

@keyframes popIn {
    from { opacity: 0; transform: scale(0.8); }
    to   { opacity: 1; transform: scale(1); }
}

/* EOD Status Bar */
.eod-status-bar {
    padding: 0.8rem; border-radius: 10px;
    text-align: center; font-weight: 600;
    margin-bottom: 1rem;
    background: rgba(239,68,68,0.12);
    color: var(--danger);
    border: 1px solid rgba(239,68,68,0.25);
    display: none;
}
.eod-status-bar.success {
    background: rgba(16,185,129,0.1);
    color: var(--success);
    border-color: rgba(16,185,129,0.25);
}
.eod-status-bar i { margin-right: 8px; }
.eod-status-bar:not(.success) { animation: warningPulse 2s infinite; }

@keyframes warningPulse {
    0%   { box-shadow: 0 0 0 0   rgba(239,68,68,0.4); }
    70%  { box-shadow: 0 0 0 10px rgba(239,68,68,0); }
    100% { box-shadow: 0 0 0 0   rgba(239,68,68,0); }
}

/* EOD Screen */
.eod-header { text-align: center; }
.eod-breakdown { padding: 1.25rem; }
.eod-row {
    display: flex; justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}
.eod-row:last-child { border-bottom: none; }

/* EOD Badge */
.eod-badge {
    display: inline-block;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #fff; font-size: 0.62rem; font-weight: 700;
    letter-spacing: 0.05em; padding: 1px 6px;
    border-radius: 999px; vertical-align: middle;
    margin-left: 5px; text-transform: uppercase;
}

/* Filter Row (History) */
.filter-row { display: flex; gap: 0.5rem; }
.filter-row > * { flex: 1; }

/* ===== HISTORY — DATE RANGE FILTER ===== */
.date-range-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-top: 0.5rem;
}
.date-range-row .range-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 3px;
    display: block;
    font-weight: 500;
}
.history-actions-row {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}
.history-actions-row .btn {
    flex: 1;
    padding: 0.65rem 0.5rem;
    font-size: 0.85rem;
}
.history-count-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(46,125,50,0.08);
    border: 1px solid rgba(46,125,50,0.2);
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    margin-bottom: 0.75rem;
    margin-top: 0.25rem;
}

/* Toggle Row */
.toggle-row {
    display: flex; align-items: center; justify-content: space-between;
}
.toggle-row label:first-child { font-size: 0.9rem; font-weight: 500; color: var(--text-main); }
.toggle-hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.35rem; }

/* File Upload */
.file-upload { position: relative; }

/* Reports */
.report-controls { }
.chart-container { height: 260px; position: relative; }

/* Search controls */
.search-controls { }

/* ===== DANGER MODAL ===== */
.danger-modal-overlay {
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 9999;
}
.danger-modal-box {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 2rem 1.5rem;
    width: 92%; max-width: 420px;
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 25px 60px rgba(0,0,0,0.4);
    animation: dangerPopIn 0.35s cubic-bezier(0.175,0.885,0.32,1.275) forwards;
    text-align: center;
}
@keyframes dangerPopIn {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.75); }
    to   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}
.danger-modal-icon {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1rem auto;
    font-size: 1.8rem; color: #ef4444;
    animation: iconPulse 1.8s ease-in-out infinite;
}
@keyframes iconPulse {
    0%, 100% { box-shadow: 0 0 0 0   rgba(239,68,68,0.3); }
    50%       { box-shadow: 0 0 0 12px rgba(239,68,68,0); }
}
.danger-modal-box h3 { font-size: 1.15rem; font-weight: 700; color: var(--text-main); margin-bottom: 0.5rem; }
.danger-modal-box p  { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 1rem; line-height: 1.5; }
.danger-modal-warning {
    background: linear-gradient(135deg, #fff7ed, #ffedd5);
    border: 1px solid #fed7aa; border-radius: 10px;
    padding: 0.75rem 1rem; font-size: 0.82rem; color: #92400e;
    display: flex; align-items: center; gap: 0.5rem;
    text-align: left; margin-bottom: 1rem;
}
[data-theme="dark"] .danger-modal-warning {
    background: rgba(245,158,11,0.1);
    border-color: rgba(245,158,11,0.3);
    color: #fbbf24;
}
.danger-modal-type-confirm {
    background: var(--bg-color); border-radius: 10px;
    padding: 0.75rem; margin-bottom: 1rem; text-align: left;
}
.danger-modal-type-confirm label {
    font-size: 0.82rem; color: var(--text-muted);
    display: block; margin-bottom: 0.4rem;
}
.danger-modal-type-confirm input {
    width: 100%; padding: 0.6rem 0.8rem;
    border: 2px solid var(--border-color); border-radius: 8px;
    font-size: 0.95rem; font-weight: 600; letter-spacing: 1px;
    background: var(--card-bg); color: var(--text-main);
    transition: border-color 0.2s;
}
.danger-modal-type-confirm input:focus { outline: none; border-color: #ef4444; }
.danger-modal-buttons { display: flex; gap: 0.75rem; margin-top: 0.5rem; }
.danger-modal-buttons .btn { flex: 1; }

/* Shake animation */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    15%  { transform: translateX(-6px); }
    30%  { transform: translateX(6px); }
    45%  { transform: translateX(-5px); }
    60%  { transform: translateX(5px); }
    75%  { transform: translateX(-3px); }
    90%  { transform: translateX(3px); }
}
.input-shake { animation: shake 0.5s ease; border-color: #ef4444 !important; }

/* ===== CLEAR OPTION CARDS ===== */
.clear-option-card {
    border-radius: 14px;
    border: 1px solid var(--border-color);
    padding: 1rem;
    background: var(--bg-color);
}
.clear-option-card.clear-option-danger {
    border-color: rgba(239,68,68,0.35);
    background: rgba(239,68,68,0.04);
}
[data-theme="dark"] .clear-option-card.clear-option-danger {
    background: rgba(239,68,68,0.08);
    border-color: rgba(239,68,68,0.4);
}
.clear-option-header {
    display: flex; align-items: center; gap: 0.5rem;
    font-weight: 700; font-size: 0.92rem;
    color: var(--text-main); margin-bottom: 0.4rem;
}
.clear-option-desc {
    font-size: 0.8rem; color: var(--text-muted); line-height: 1.5;
}