/* qiwi-style.css - с CSS переменными */
:root {
    --text-primary: #1a1a2e;
    --text-secondary: #6b7280;
    --text-white: #ffffff;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --border-color: #f0f2f5;
    --shadow-color: rgba(0,0,0,0.05);
    --card-text: #1a1a2e;
    --stat-bg: rgba(0,0,0,0.03);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #f0f2f5;
    color: var(--text-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background 0.3s, color 0.3s;
}

/* Header */
.header {
    background: #1a1a2e;
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: white !important;
    font-weight: 700;
    font-size: 24px;
    letter-spacing: -0.5px;
}

.brand-icon {
    font-size: 32px;
}

.brand-name {
    background: linear-gradient(135deg, #ff6b00, #ff8c00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-greeting {
    color: rgba(255,255,255,0.8) !important;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-logout {
    color: rgba(255,255,255,0.6) !important;
    text-decoration: none;
    font-size: 20px;
    transition: color 0.3s;
    padding: 8px;
}

.btn-logout:hover {
    color: #ff6b00 !important;
}

.btn-back {
    color: rgba(255,255,255,0.8) !important;
    text-decoration: none;
    font-size: 20px;
    padding: 4px 8px;
    transition: color 0.3s;
}

.btn-back:hover {
    color: #ff6b00 !important;
}

/* Main Content */
.main-content {
    padding: 30px 0;
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 2px 10px var(--shadow-color);
    border: none;
    color: var(--card-text);
    transition: background 0.3s, color 0.3s, border-color 0.3s;
}

.card-body {
    color: var(--card-text);
}

.card-title {
    color: var(--card-text) !important;
    font-weight: 600;
    margin-bottom: 16px;
}

/* Balance Section */
.balance-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 30px;
}

.balance-card {
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 2px 10px var(--shadow-color);
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s, color 0.3s;
    background: var(--bg-card);
    color: var(--card-text);
}

.balance-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
}

.main-balance {
    background: linear-gradient(135deg, #1a1a2e, #2d2d44) !important;
    color: white !important;
}

.main-balance .balance-label {
    color: rgba(255,255,255,0.7) !important;
}

.main-balance .balance-amount {
    color: #ffffff !important;
}

.main-balance .balance-sub {
    color: rgba(255,255,255,0.5) !important;
}

.balance-info {
    margin-bottom: 20px;
}

.balance-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 8px;
}

.balance-amount {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -1px;
    color: var(--text-primary);
}

.balance-sub {
    font-size: 14px;
    color: var(--text-secondary);
    display: block;
    margin-top: 4px;
}

/* Quick Stats */
.quick-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.stat-item {
    background: var(--stat-bg);
    border-radius: 10px;
    padding: 16px;
    text-align: center;
    transition: background 0.3s;
}

.stat-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    transition: color 0.3s;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
    transition: color 0.3s;
}

/* Menu Grid */
.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
    margin-bottom: 30px;
}

.menu-item {
    background: var(--bg-card);
    border-radius: 14px;
    padding: 20px 16px;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary) !important;
    transition: all 0.3s;
    box-shadow: 0 2px 8px var(--shadow-color);
    border: 1px solid transparent;
}

.menu-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    border-color: #ff6b00;
}

.menu-item i {
    font-size: 28px;
    margin-bottom: 8px;
    display: block;
}

.menu-item span {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary) !important;
    transition: color 0.3s;
}

.menu-item.highlight {
    border: 2px solid #ff6b00;
    background: rgba(255,107,0,0.05);
}

/* Transactions */
.transactions-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 2px 10px var(--shadow-color);
    transition: background 0.3s, color 0.3s;
}

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

.section-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary) !important;
    transition: color 0.3s;
}

.section-link {
    color: #ff6b00 !important;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

.transaction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
    transition: border-color 0.3s;
}

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

.transaction-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.transaction-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.icon-in {
    background: #e6f7e6;
    color: #00a854;
}

.icon-out {
    background: #ffe6e6;
    color: #ff4d4d;
}

.transaction-details {
    display: flex;
    flex-direction: column;
}

.transaction-name {
    font-weight: 500;
    font-size: 14px;
    color: var(--text-primary) !important;
    transition: color 0.3s;
}

.transaction-date {
    font-size: 12px;
    color: var(--text-secondary) !important;
    transition: color 0.3s;
}

.transaction-amount {
    font-weight: 600;
    font-size: 16px;
}

.amount-positive {
    color: #00a854 !important;
}

.amount-negative {
    color: #ff4d4d !important;
}

/* Forms */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 100%);
    padding: 20px;
}

.auth-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 48px;
    max-width: 440px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo h1 {
    font-size: 32px;
    font-weight: 800;
    background: linear-gradient(135deg, #ff6b00, #ff8c00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-logo p {
    color: #6b7280;
    font-size: 14px;
    margin-top: 4px;
}

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

.form-label {
    display: block;
    font-weight: 500;
    font-size: 14px;
    color: #374151 !important;
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #ffffff;
    color: #1a1a2e !important;
}

.form-input:focus {
    outline: none;
    border-color: #ff6b00;
    box-shadow: 0 0 0 4px rgba(255,107,0,0.1);
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-success {
    background: #e6f7e6;
    color: #00a854 !important;
    border: 1px solid #b8e6b8;
}

.alert-danger {
    background: #ffe6e6;
    color: #ff4d4d !important;
    border: 1px solid #f5c6c6;
}

.alert-warning {
    background: #fff3cd;
    color: #856404 !important;
    border: 1px solid #ffc107;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.bg-success {
    background: #d4edda;
    color: #155724 !important;
}

.bg-danger {
    background: #f8d7da;
    color: #721c24 !important;
}

.bg-warning {
    background: #fff3cd;
    color: #856404 !important;
}

.status-approved {
    background: #d4edda;
    color: #155724 !important;
}

.status-pending {
    background: #fff3cd;
    color: #856404 !important;
}

.status-rejected {
    background: #f8d7da;
    color: #721c24 !important;
}

/* Admin */
.admin-badge {
    background: #ff6b00;
    color: #ffffff !important;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    box-shadow: 0 2px 8px var(--shadow-color);
    transition: background 0.3s, color 0.3s;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary) !important;
    transition: color 0.3s;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary) !important;
    margin-top: 4px;
    transition: color 0.3s;
}

/* Theme Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 10000;
    overflow-y: auto;
    padding: 20px;
}

.modal-content {
    background: var(--bg-card);
    border-radius: 20px;
    max-width: 800px;
    margin: 40px auto;
    padding: 30px;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
    transition: background 0.3s, color 0.3s;
}

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

.modal-header h3 {
    color: var(--text-primary) !important;
    transition: color 0.3s;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--text-primary);
}

/* Themes */
.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
}

.theme-item {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.theme-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.theme-item.theme-active {
    border-color: #ff6b00;
    background: rgba(255,107,0,0.05);
}

.theme-preview {
    height: 80px;
    border-radius: 8px;
    margin-bottom: 8px;
    position: relative;
    background-size: cover;
    background-position: center;
}

.theme-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary) !important;
    transition: color 0.3s;
}

.theme-desc {
    font-size: 11px;
    color: var(--text-secondary) !important;
    transition: color 0.3s;
}

.btn-theme-select {
    margin-top: 8px;
    padding: 4px 12px;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    background: #e5e7eb;
    color: #1a1a2e !important;
    transition: all 0.3s;
}

.btn-theme-select:hover {
    background: #d1d5db;
}

.btn-theme-select.active {
    background: #00a854;
    color: #ffffff !important;
}

.btn-theme-buy {
    margin-top: 8px;
    padding: 4px 12px;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    background: #ff6b00;
    color: #ffffff !important;
    transition: all 0.3s;
}

.btn-theme-buy:hover {
    background: #e65c00;
}

/* Theme toggle button */
.btn-theme-toggle {
    background: none;
    border: none;
    color: rgba(255,255,255,0.8) !important;
    font-size: 20px;
    cursor: pointer;
    padding: 4px 8px;
    transition: color 0.3s;
}

.btn-theme-toggle:hover {
    color: #ff6b00 !important;
}

/* Balance info */
.balance-info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary) !important;
    transition: color 0.3s, border-color 0.3s;
}

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

.balance-amount-small {
    font-weight: 600;
    font-size: 18px;
    color: var(--text-primary) !important;
    transition: color 0.3s;
}

.text-danger {
    color: #ff4d4d !important;
}

.text-muted {
    color: var(--text-secondary) !important;
    transition: color 0.3s;
}

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

/* Empty state */
.empty-state {
    text-align: center;
    padding: 40px 0;
    color: var(--text-secondary) !important;
    transition: color 0.3s;
}

.empty-state i {
    font-size: 48px;
    display: block;
    margin-bottom: 12px;
}

/* Loan item */
.loan-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    transition: border-color 0.3s;
}

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

/* Work */
.work-limit {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.btn-photo, .btn-math {
    padding: 8px 16px;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-photo {
    background: #0984e3;
    color: #ffffff !important;
}

.btn-photo:hover {
    background: #0770c4;
}

.btn-math {
    background: #00b894;
    color: #ffffff !important;
}

.btn-math:hover {
    background: #00987a;
}

.math-problem {
    background: var(--bg-secondary);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 12px;
    color: var(--text-primary) !important;
    transition: background 0.3s, color 0.3s;
}

/* Products */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.product-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    transition: background 0.3s;
}

.product-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary) !important;
    transition: color 0.3s;
}

.product-desc {
    font-size: 13px;
    color: var(--text-secondary) !important;
    margin-bottom: 8px;
    transition: color 0.3s;
}

.product-price {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-primary) !important;
    transition: color 0.3s;
}

.btn-buy {
    width: 100%;
    padding: 10px;
    background: #ff6b00;
    color: #ffffff !important;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-buy:hover:not(:disabled) {
    background: #e65c00;
}

.btn-buy:disabled {
    background: #ccc;
    cursor: not-allowed;
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.card-item {
    background: linear-gradient(135deg, #1a1a2e, #2d2d44) !important;
    color: #ffffff !important;
    border-radius: 16px;
    padding: 24px !important;
    transition: all 0.3s;
}

.card-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.card-inactive {
    opacity: 0.5;
}

.card-type {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.card-type i {
    font-size: 24px;
    color: #ffd700 !important;
}

.card-status {
    font-size: 11px;
    color: rgba(255,255,255,0.5) !important;
}

.card-number {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 3px;
    margin-bottom: 8px;
    color: #ffffff !important;
    font-family: 'Courier New', monospace !important;
    background: rgba(255,255,255,0.05);
    padding: 8px 12px;
    border-radius: 8px;
    display: inline-block;
}

.card-name {
    font-size: 13px;
    color: rgba(255,255,255,0.7) !important;
    margin-bottom: 12px;
}

.card-balance {
    font-size: 16px;
    color: #ffffff !important;
    margin-bottom: 12px;
}

.card-balance strong {
    color: #00ff88 !important;
}

.card-actions {
    display: flex;
    gap: 8px;
}

.btn-action-small {
    padding: 6px 12px;
    border: none;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    color: #ffffff !important;
    background: rgba(255,255,255,0.1);
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-action-small:hover {
    background: rgba(255,255,255,0.2);
}

.btn-action-small.btn-success {
    background: #00a854 !important;
}

.btn-action-small.btn-success:hover {
    background: #00944a !important;
}

/* Card info */
.card-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.card-number-display, .card-balance-display {
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 10px;
    transition: background 0.3s;
}

.card-number-display .label,
.card-balance-display .label {
    font-size: 12px;
    color: var(--text-secondary) !important;
    display: block;
    transition: color 0.3s;
}

.card-number-display .number {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--text-primary) !important;
    font-family: 'Courier New', monospace;
    transition: color 0.3s;
}

.card-balance-display .amount {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary) !important;
    transition: color 0.3s;
}

/* btn-submit */
.btn-submit {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #ff6b00, #ff8c00);
    color: #ffffff !important;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255,107,0,0.3);
}

/* Responsive */
@media (max-width: 768px) {
    .balance-section {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .balance-amount {
        font-size: 28px;
    }
    
    .balance-actions {
        flex-direction: column;
        gap: 8px;
    }
    
    .btn-action {
        justify-content: center;
        padding: 12px;
        font-size: 14px;
    }
    
    .menu-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    
    .menu-item {
        padding: 14px 10px;
    }
    
    .menu-item i {
        font-size: 22px;
    }
    
    .menu-item span {
        font-size: 11px;
    }
    
    .auth-card {
        padding: 32px 20px;
    }
    
    .quick-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .card-info {
        grid-template-columns: 1fr;
    }
    
    .admin-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .menu-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }
    
    .menu-item {
        padding: 10px 6px;
    }
    
    .menu-item i {
        font-size: 18px;
    }
    
    .menu-item span {
        font-size: 10px;
    }
    
    .auth-card {
        padding: 24px 16px;
    }
    
    .header {
        padding: 10px 0;
    }
    
    .nav-brand a {
        font-size: 18px;
    }
    
    .balance-amount {
        font-size: 24px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}