/* ============================================
   Strawberry IT - Mobile UI
   Modern, Clean, Mobile-First Design
   ============================================ */

:root {
    --primary: #E8364F;
    --primary-dark: #C62839;
    --primary-light: #FF6B7F;
    --secondary: #1E293B;
    --accent: #F59E0B;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --info: #3B82F6;
    --bg-main: #F1F5F9;
    --bg-card: #FFFFFF;
    --bg-dark: #0F172A;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-light: #94A3B8;
    --border: #E2E8F0;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --nav-height: 64px;
    --bottom-nav-height: 72px;
    --font-family: 'Kanit', 'Noto Sans Thai', sans-serif;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ============ Top Navigation ============ */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 1000;
    box-shadow: 0 2px 12px rgba(232, 54, 79, 0.3);
}

.top-nav .nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.top-nav .nav-brand img {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: 2px solid rgba(255,255,255,0.3);
}

.top-nav .nav-brand span {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.top-nav .nav-user {
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-nav .nav-user .user-name {
    color: rgba(255,255,255,0.9);
    font-size: 0.85rem;
    font-weight: 500;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.top-nav .nav-user .user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.2s;
}

.top-nav .nav-user .user-avatar:active {
    background: rgba(255,255,255,0.3);
}

/* ============ Bottom Navigation ============ */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: 1000;
    box-shadow: 0 -2px 20px rgba(0,0,0,0.08);
    padding-bottom: env(safe-area-inset-bottom, 0);
    border-top: 1px solid var(--border);
}

.bottom-nav .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    min-width: 60px;
    position: relative;
}

.bottom-nav .nav-item i {
    font-size: 1.4rem;
    color: var(--text-light);
    transition: all 0.2s;
}

.bottom-nav .nav-item span {
    font-size: 0.65rem;
    color: var(--text-light);
    font-weight: 500;
    transition: all 0.2s;
}

.bottom-nav .nav-item.active i,
.bottom-nav .nav-item.active span {
    color: var(--primary);
}

.bottom-nav .nav-item.active::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 3px;
    background: var(--primary);
    border-radius: 0 0 4px 4px;
}

.bottom-nav .nav-item:active {
    transform: scale(0.92);
}

/* ============ Main Content ============ */
.main-content {
    padding-top: calc(var(--nav-height) + 12px);
    padding-bottom: calc(var(--bottom-nav-height) + 16px);
    padding-left: 16px;
    padding-right: 16px;
    min-height: 100vh;
    min-height: 100dvh;
}

/* ============ Cards ============ */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    overflow: hidden;
    margin-bottom: 12px;
    transition: box-shadow 0.2s;
}

.card:active {
    box-shadow: var(--shadow-md);
}

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

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 16px;
}

.card-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    border: none;
}

.card-gradient .card-label {
    color: rgba(255,255,255,0.75);
    font-size: 0.8rem;
}

.card-gradient .card-value {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
}

/* ============ Info Card (Contract Summary) ============ */
.info-card {
    background: linear-gradient(135deg, #1E293B 0%, #334155 100%);
    border-radius: var(--radius-lg);
    padding: 20px;
    color: #fff;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -20%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(232,54,79,0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.info-card .contract-select {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    font-size: 0.9rem;
    width: 100%;
    margin-bottom: 12px;
    font-family: var(--font-family);
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.info-card .contract-select option {
    background: var(--secondary);
    color: #fff;
}

.info-card .info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.info-card .info-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.info-card .info-label {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.6);
}

.info-card .info-value {
    font-size: 0.95rem;
    font-weight: 600;
}

/* ============ Form Elements ============ */
.form-group {
    margin-bottom: 14px;
}

.form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-card);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(232, 54, 79, 0.1);
}

.form-control:read-only {
    background: #F8FAFC;
    color: var(--text-secondary);
}

.form-control::placeholder {
    color: var(--text-light);
}

select.form-control {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.form-row.cols-1 {
    grid-template-columns: 1fr;
}

/* ============ Buttons ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    line-height: 1.4;
    white-space: nowrap;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(232, 54, 79, 0.3);
}

.btn-primary:active {
    box-shadow: 0 2px 6px rgba(232, 54, 79, 0.3);
}

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

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #DC2626 100%);
    color: #fff;
}

.btn-info {
    background: linear-gradient(135deg, var(--info) 0%, #2563EB 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border);
    color: var(--text-primary);
}

.btn-outline:active {
    background: var(--bg-main);
}

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 14px 24px;
    font-size: 1rem;
    border-radius: var(--radius-md);
}

.btn-sm {
    padding: 8px 14px;
    font-size: 0.82rem;
}

/* ============ Badges ============ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.badge-warning {
    background: #FEF3C7;
    color: #92400E;
}

.badge-success {
    background: #D1FAE5;
    color: #065F46;
}

.badge-info {
    background: #DBEAFE;
    color: #1E40AF;
}

.badge-danger {
    background: #FEE2E2;
    color: #991B1B;
}

/* ============ Tables ============ */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.table thead {
    background: #F8FAFC;
}

.table th {
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
    border-bottom: 1px solid var(--border);
}

.table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    white-space: nowrap;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.table tbody tr:active {
    background: #F8FAFC;
}

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

.table .text-center {
    text-align: center;
}

.table tfoot td {
    font-weight: 700;
    background: var(--secondary);
    color: #fff;
}

/* ============ Tabs ============ */
.tabs {
    display: flex;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    gap: 4px;
    padding: 4px;
    background: #F1F5F9;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

.tabs::-webkit-scrollbar {
    display: none;
}

.tab-item {
    flex-shrink: 0;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    text-align: center;
    border: none;
    background: transparent;
    font-family: var(--font-family);
}

.tab-item.active {
    background: var(--bg-card);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.25s ease;
}

/* ============ Quick Actions ============ */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.quick-action-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 8px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.quick-action-item:active {
    transform: scale(0.95);
    box-shadow: var(--shadow-md);
}

.quick-action-item .icon-wrap {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.quick-action-item .icon-wrap.red {
    background: #FEE2E2;
    color: var(--primary);
}

.quick-action-item .icon-wrap.blue {
    background: #DBEAFE;
    color: var(--info);
}

.quick-action-item .icon-wrap.green {
    background: #D1FAE5;
    color: var(--success);
}

.quick-action-item .icon-wrap.amber {
    background: #FEF3C7;
    color: var(--accent);
}

.quick-action-item .action-label {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.3;
}

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

.section-title h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.section-title .see-all {
    font-size: 0.82rem;
    color: var(--primary);
    font-weight: 500;
    text-decoration: none;
}

/* ============ Contract Card ============ */
.contract-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 16px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.contract-card:active {
    background: #F8FAFC;
    transform: scale(0.99);
}

.contract-card .contract-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.3rem;
    flex-shrink: 0;
}

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

.contract-card .contract-no {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.contract-card .contract-detail {
    font-size: 0.78rem;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.contract-card .contract-amount {
    text-align: right;
    flex-shrink: 0;
}

.contract-card .contract-amount .amount {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
}

.contract-card .contract-amount .due-date {
    font-size: 0.72rem;
    color: var(--text-light);
}

/* ============ Transaction Item ============ */
.transaction-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

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

.transaction-item .tx-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

.transaction-item .tx-icon.paid {
    background: #D1FAE5;
    color: var(--success);
}

.transaction-item .tx-icon.pending {
    background: #FEF3C7;
    color: var(--accent);
}

.transaction-item .tx-icon.cancelled {
    background: #FEE2E2;
    color: var(--danger);
}

.transaction-item .tx-info {
    flex: 1;
    min-width: 0;
}

.transaction-item .tx-no {
    font-size: 0.85rem;
    font-weight: 600;
}

.transaction-item .tx-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

.transaction-item .tx-amount {
    font-size: 0.95rem;
    font-weight: 700;
    text-align: right;
}

/* ============ Payment Due Table (legacy) ============ */
.due-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    border-bottom: 1px solid var(--border);
    gap: 8px;
}

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

.due-item .due-check {
    width: 22px;
    height: 22px;
    accent-color: var(--primary);
}

.due-item .due-name {
    flex: 1;
    font-size: 0.85rem;
    color: var(--text-primary);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.due-item .due-amount {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

/* ============ Summary Box (legacy) ============ */
.summary-box {
    background: var(--secondary);
    border-radius: var(--radius-md);
    padding: 16px;
    color: #fff;
    margin: 12px 0;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
}

.summary-row .label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
}

.summary-row .value {
    font-size: 1rem;
    font-weight: 700;
}

.summary-row.total {
    border-top: 1px solid rgba(255,255,255,0.15);
    margin-top: 8px;
    padding-top: 12px;
}

.summary-row.total .value {
    font-size: 1.3rem;
    color: var(--primary-light);
}

/* ============ Payment Page - New UI ============ */

/* Step Indicator */
.pay-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 12px 8px;
    gap: 0;
}

.pay-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    opacity: 0.35;
    transition: opacity 0.3s;
}

.pay-step.active {
    opacity: 1;
}

.pay-step-num {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    transition: all 0.3s;
}

.pay-step.active .pay-step-num {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(232,54,79,0.35);
}

.pay-step span {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.pay-step.active span {
    color: var(--primary);
    font-weight: 600;
}

.pay-step-line {
    flex: 1;
    height: 2px;
    background: var(--border);
    margin: 0 6px;
    margin-bottom: 18px;
    max-width: 50px;
}

/* Contract Selection */
.pay-contract-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 16px;
    margin: 8px 0 12px;
    box-shadow: var(--shadow-sm);
}

.pay-contract-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.pay-contract-header i {
    color: var(--primary);
    font-size: 1rem;
}

.pay-contract-select {
    width: 100%;
    padding: 12px 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--bg-main);
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    transition: border-color 0.2s;
}

.pay-contract-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(232,54,79,0.1);
}

/* Loading */
.pay-loading-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 40px 20px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Contract Info Card */
.pay-info-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 12px;
}

.pay-info-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: linear-gradient(135deg, var(--secondary) 0%, #334155 100%);
    color: #fff;
}

.pay-info-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
}

.pay-info-title i {
    opacity: 0.7;
}

.pay-badge {
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.15);
    color: #fff;
    font-weight: 500;
}

.pay-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.pay-info-item {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
}

.pay-info-item:nth-child(2n) {
    border-right: none;
}

.pay-info-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-light);
    margin-bottom: 2px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.pay-info-value {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pay-info-value.pay-highlight {
    color: var(--info);
}

.pay-info-footer {
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 12px 8px;
    background: #F8FAFC;
}

.pay-stat {
    text-align: center;
    flex: 1;
}

.pay-stat-label {
    display: block;
    font-size: 0.68rem;
    color: var(--text-light);
    margin-bottom: 2px;
}

.pay-stat-value {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.pay-stat-value.pay-late {
    color: var(--danger);
}

.pay-stat-value.pay-warn {
    color: var(--warning);
}

.pay-stat-divider {
    width: 1px;
    height: 30px;
    background: var(--border);
}

/* Due Items Card */
.pay-due-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 12px;
}

.pay-due-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    background: #F8FAFC;
}

.pay-due-header > div {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.pay-due-header i {
    color: var(--primary);
}

.pay-check-all-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.pay-check-all-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.pay-due-list {
    max-height: 320px;
    overflow-y: auto;
}

.pay-due-list .due-item {
    padding: 14px 16px;
    transition: background 0.15s;
}

.pay-due-list .due-item:active {
    background: #F1F5F9;
}

/* Sticky Bottom Bar */
.pay-bottom-bar {
    position: sticky;
    bottom: 72px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    z-index: 10;
    border: 1px solid var(--border);
}

.pay-bottom-total {
    display: flex;
    flex-direction: column;
}

.pay-bottom-label {
    font-size: 0.7rem;
    color: var(--text-light);
    font-weight: 500;
}

.pay-bottom-value {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.pay-bottom-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.15s, box-shadow 0.15s;
    box-shadow: 0 4px 12px rgba(232,54,79,0.3);
}

.pay-bottom-btn:active {
    transform: scale(0.97);
}

/* QR Code Card */
.pay-qr-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.pay-qr-header {
    padding: 20px;
    background: linear-gradient(135deg, var(--secondary) 0%, #334155 100%);
    color: #fff;
}

.pay-qr-header i {
    font-size: 1.5rem;
    margin-bottom: 4px;
    display: block;
    opacity: 0.8;
}

.pay-qr-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.pay-qr-body {
    padding: 24px 20px;
}

.pay-qr-body img {
    max-width: 240px;
    border-radius: var(--radius-md);
    margin: 0 auto;
    display: block;
    box-shadow: var(--shadow-md);
}

.pay-qr-warning {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    text-align: left;
    padding: 14px 16px;
    margin: 0 16px 16px;
    background: #FEF3C7;
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--warning);
    font-size: 0.78rem;
    color: #92400E;
    line-height: 1.5;
}

.pay-qr-warning i {
    color: var(--warning);
    font-size: 1.1rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.pay-qr-back {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: calc(100% - 32px);
    margin: 0 16px 16px;
    padding: 12px;
    background: var(--bg-main);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
}

.pay-qr-back:active {
    background: var(--border);
}

/* ============ Modal / Slide-up Panel ============ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    display: none;
    align-items: flex-end;
    justify-content: center;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

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

.modal-panel {
    background: var(--bg-card);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
    padding-bottom: env(safe-area-inset-bottom, 16px);
}

.modal-panel .modal-handle {
    width: 40px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    margin: 12px auto;
}

.modal-panel .modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px 16px;
    border-bottom: 1px solid var(--border);
}

.modal-panel .modal-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.modal-panel .modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--bg-main);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.modal-panel .modal-body {
    padding: 20px;
}

/* ============ Loading ============ */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    gap: 12px;
}

.loading .spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading span {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ============ Empty State ============ */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
}

.empty-state i {
    font-size: 3rem;
    color: var(--text-light);
    margin-bottom: 16px;
}

.empty-state h4 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.empty-state p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ============ File Upload ============ */
.file-upload {
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.file-upload:active {
    border-color: var(--primary);
    background: rgba(232, 54, 79, 0.03);
}

.file-upload input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-upload i {
    font-size: 2rem;
    color: var(--text-light);
    margin-bottom: 8px;
}

.file-upload p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ============ Utilities ============ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-info { color: var(--info) !important; }
.text-warning { color: var(--warning) !important; }
.text-muted { color: var(--text-light) !important; }
.text-white { color: #fff !important; }
.text-bold { font-weight: 700; }
.text-sm { font-size: 0.82rem; }
.text-xs { font-size: 0.72rem; }
.text-lg { font-size: 1.1rem; }

.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }

.d-none { display: none !important; }
.d-flex { display: flex; }
.d-grid { display: grid; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }

.divider {
    height: 1px;
    background: var(--border);
    margin: 16px 0;
}

/* ============ Animations ============ */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ============ Skeleton Loading ============ */
.skeleton {
    background: linear-gradient(90deg, #E2E8F0 25%, #F1F5F9 50%, #E2E8F0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ============ Toast Notification ============ */
.toast {
    position: fixed;
    top: calc(var(--nav-height) + 12px);
    left: 16px;
    right: 16px;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 3000;
    display: none;
    animation: fadeIn 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.toast.show { display: block; }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); color: #1E293B; }
.toast.info { background: var(--info); }

/* ============ QR Code Section ============ */
.qr-section {
    text-align: center;
    padding: 20px;
}

.qr-section img {
    max-width: 250px;
    border-radius: var(--radius-md);
    margin: 12px auto;
}

.qr-section .qr-note {
    font-size: 0.82rem;
    color: var(--danger);
    margin-top: 12px;
    line-height: 1.5;
}

/* ============ Login Page ============ */
.login-page {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #334155 100%);
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 20%, rgba(232,54,79,0.12) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(59,130,246,0.08) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-20px, -20px); }
}

.login-card {
    width: 100%;
    max-width: 380px;
    position: relative;
    z-index: 1;
}

.login-card .logo-section {
    text-align: center;
    margin-bottom: 32px;
}

.login-card .logo-section img {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-xl);
    margin-bottom: 16px;
    box-shadow: 0 8px 32px rgba(232, 54, 79, 0.3);
}

.login-card .logo-section h1 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.login-card .logo-section p {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

.login-form {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-xl);
    padding: 28px 24px;
}

.login-form .form-group {
    margin-bottom: 16px;
}

.login-form .form-label {
    color: rgba(255,255,255,0.7);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.login-form .form-control {
    background: rgba(255,255,255,0.08);
    border: 1.5px solid rgba(255,255,255,0.15);
    color: #fff;
    padding: 14px 16px;
    font-size: 1rem;
    border-radius: var(--radius-md);
}

.login-form .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(232, 54, 79, 0.2);
    background: rgba(255,255,255,0.12);
}

.login-form .form-control::placeholder {
    color: rgba(255,255,255,0.3);
}

.login-form .btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 16px rgba(232, 54, 79, 0.4);
    margin-top: 8px;
}

.login-form .btn-login:active {
    transform: scale(0.98);
    box-shadow: 0 2px 8px rgba(232, 54, 79, 0.4);
}

.login-form .input-icon {
    position: relative;
}

.login-form .input-icon i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255,255,255,0.4);
    font-size: 1.1rem;
}

.login-form .input-icon .form-control {
    padding-left: 44px;
}

/* ============ Sidebar / Profile Panel ============ */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1500;
    display: none;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.sidebar-overlay.show {
    display: block;
}

.sidebar-panel {
    position: fixed;
    top: 0;
    right: -320px;
    width: 320px;
    max-width: 85vw;
    height: 100%;
    background: var(--bg-card);
    z-index: 1501;
    transition: right 0.3s ease;
    overflow-y: auto;
    box-shadow: -4px 0 20px rgba(0,0,0,0.1);
}

.sidebar-panel.show {
    right: 0;
}

.sidebar-panel .sidebar-header {
    padding: 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
}

.sidebar-panel .sidebar-body {
    padding: 16px;
}

/* ============ Responsive ============ */
@media (min-width: 480px) {
    .main-content {
        max-width: 480px;
        margin: 0 auto;
    }
}

/* ============ Print Hidden ============ */
@media print {
    .top-nav, .bottom-nav { display: none; }
    .main-content { padding: 0; }
}