/* Современная система ревардов - обновленный дизайн */
:root {
    /* Основная палитра в сине-зеленых тонах */
    --primary-color: #2d6a4f;        /* Темно-зеленый */
    --primary-hover: #40916c;        /* Зеленый при ховере */
    --secondary-color: #52b788;      /* Морской волны */
    --accent-color: #74c69d;         /* Светло-бирюзовый */
    --light-accent: #a8dadc;         /* Светло-голубой */
    --muted-blue: #8da3b8;           /* Серо-голубой */
    
    /* Градиенты */
    --gradient-primary: linear-gradient(135deg, #2d6a4f 0%, #52b788 100%);
    --gradient-secondary: linear-gradient(135deg, #74c69d 0%, #a8dadc 100%);
    --gradient-subtle: linear-gradient(135deg, #f8fcfb 0%, #f1f9f7 100%);
    
    /* Цветовая схема */
    --success-color: #40916c;
    --warning-color: #95d5b2;
    --error-color: #e63946;
    --info-color: #457b9d;
    
    /* Фоны и поверхности */
    --background: #f8fcfb;
    --surface: #ffffff;
    --surface-elevated: #ffffff;
    --surface-hover: #f1f9f7;
    
    /* Текст */
    --text-primary: #1a2e2b;
    --text-secondary: #2d5a52;
    --text-muted: #6b8981;
    --text-light: #95a5a1;
    --text-on-primary: #ffffff;
    
    /* Границы и разделители */
    --border-color: #d1f2eb;
    --border-hover: #a8dadc;
    --divider: #e8f5f2;
    
    /* Размеры и отступы */
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    
    /* Тени */
    --shadow-sm: 0 2px 8px rgba(45, 106, 79, 0.08);
    --shadow: 0 4px 16px rgba(45, 106, 79, 0.12);
    --shadow-md: 0 8px 24px rgba(45, 106, 79, 0.15);
    --shadow-lg: 0 16px 32px rgba(45, 106, 79, 0.18);
    
    /* Переходы */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 15px;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Заголовок */
.header {
    background: var(--surface);
    border-bottom: 1px solid var(--divider);
    padding: 24px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.header h1 {
    font-size: 28px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: 8px;
}

.header p {
    font-size: 15px;
    color: var(--text-muted);
    text-align: center;
    font-weight: 500;
}

/* Контейнер */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Навигация */
.nav {
    background: var(--surface);
    border-bottom: 1px solid var(--divider);
    padding: 16px 0;
}

.nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.nav a {
    text-decoration: none;
    color: var(--text-secondary);
    padding: 12px 20px;
    border-radius: var(--radius);
    transition: var(--transition);
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.nav a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-secondary);
    transition: var(--transition);
    z-index: -1;
}

.nav a:hover {
    color: var(--text-on-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.nav a:hover::before {
    left: 0;
}

.nav a.active {
    background: var(--gradient-primary);
    color: var(--text-on-primary);
    box-shadow: var(--shadow-sm);
}

/* Карточки */
.card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 20px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--border-hover);
}

.card h2 {
    color: var(--text-primary);
    margin-bottom: 16px;
    font-size: 20px;
    font-weight: 700;
}

.card h3 {
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-size: 16px;
    font-weight: 600;
}

/* Статистика */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-item {
    background: var(--gradient-subtle);
    padding: 24px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.stat-value {
    font-size: 32px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
    line-height: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 15px;
    transition: var(--transition);
    background: var(--surface);
    color: var(--text-primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(45, 106, 79, 0.15);
    transform: translateY(-1px);
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border: 2px solid transparent;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    text-transform: none;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition);
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-on-primary);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    box-shadow: var(--shadow-md);
}

.btn-success {
    background: var(--gradient-secondary);
    color: var(--text-on-primary);
    border-color: var(--secondary-color);
}

.btn-warning {
    background: linear-gradient(135deg, #ffd89b 0%, #19547b 100%);
    color: var(--text-on-primary);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
}

.btn-sm {
    padding: 10px 16px;
    font-size: 13px;
}

.btn-lg {
    padding: 18px 32px;
    font-size: 16px;
    font-weight: 700;
}

/* Таблицы */
.table-container {
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    background: var(--gradient-subtle);
    color: var(--text-primary);
    font-weight: 700;
    padding: 16px;
    text-align: left;
    border-bottom: 2px solid var(--divider);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: 16px;
    border-bottom: 1px solid var(--divider);
    color: var(--text-secondary);
}

.table tr:hover td {
    background: var(--surface-hover);
}

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

/* Алерты */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    border-left: 4px solid;
    font-weight: 500;
}

.alert-success {
    background: rgba(64, 145, 108, 0.1);
    color: var(--success-color);
    border-left-color: var(--success-color);
}

.alert-error {
    background: rgba(230, 57, 70, 0.1);
    color: var(--error-color);
    border-left-color: var(--error-color);
}

.alert-warning {
    background: rgba(149, 213, 178, 0.1);
    color: #2d6a4f;
    border-left-color: var(--warning-color);
}

/* Сетка подарков */
.gifts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.gift-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.gift-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-secondary);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.gift-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.gift-card:hover::before {
    opacity: 0.05;
}

.gift-icon {
    font-size: 48px;
    margin-bottom: 16px;
    filter: drop-shadow(0 4px 8px rgba(45, 106, 79, 0.15));
}

.gift-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.gift-price {
    font-size: 24px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.gift-description {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 20px;
}

/* Профиль пользователя */
.user-profile {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--gradient-subtle);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}

.user-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--text-on-primary);
    font-weight: 700;
    box-shadow: var(--shadow);
}

.user-info h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.user-info p {
    color: var(--text-muted);
    font-size: 14px;
}

/* Дашборд */
.dashboard-container {
    padding: 24px 0;
}

.dashboard-header {
    text-align: center;
    margin-bottom: 32px;
}

.dashboard-header h1 {
    font-size: 32px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.dashboard-header p {
    font-size: 16px;
    color: var(--text-muted);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--surface);
    padding: 28px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
}

.stat-card.balance::before {
    background: var(--gradient-primary);
}

.stat-card.sent::before {
    background: var(--gradient-secondary);
}

.stat-card.received::before {
    background: linear-gradient(135deg, #a8dadc 0%, #8da3b8 100%);
}

.stat-card.can-give::before {
    background: linear-gradient(135deg, #74c69d 0%, #52b788 100%);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 36px;
    margin-bottom: 16px;
    filter: drop-shadow(0 4px 8px rgba(45, 106, 79, 0.2));
}

.stat-info h3 {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.stat-value {
    font-size: 36px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

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

.dashboard-content {
    display: grid;
    gap: 24px;
}

.dashboard-section {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.dashboard-section h2 {
    background: var(--gradient-subtle);
    padding: 20px 24px;
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 1px solid var(--divider);
}

/* Топ пользователей */
.top-users-grid {
    display: grid;
    gap: 16px;
    padding: 24px;
}

.top-user-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--gradient-subtle);
    border-radius: var(--radius);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
}

.top-user-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
}

.top-user-card.top-1::before {
    background: linear-gradient(to bottom, #ffd700, #ffa500);
}

.top-user-card.top-2::before {
    background: linear-gradient(to bottom, #c0c0c0, #a8a8a8);
}

.top-user-card.top-3::before {
    background: linear-gradient(to bottom, #cd7f32, #b8860b);
}

.top-user-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow);
}

.rank {
    font-size: 24px;
    font-weight: 800;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-on-primary);
}

.top-user-card.top-1 .rank {
    background: linear-gradient(135deg, #ffd700 0%, #ffa500 100%);
}

.top-user-card.top-2 .rank {
    background: linear-gradient(135deg, #c0c0c0 0%, #a8a8a8 100%);
}

.top-user-card.top-3 .rank {
    background: linear-gradient(135deg, #cd7f32 0%, #b8860b 100%);
}

.user-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
}

.top-user-card .user-avatar {
    width: 48px;
    height: 48px;
    font-size: 18px;
}

.user-details h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.user-details p {
    font-size: 13px;
    color: var(--text-muted);
}

.user-stats {
    text-align: right;
}

.received-count {
    font-size: 20px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.received-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* Адаптивность */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .dashboard-container {
        padding: 16px 0;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 12px;
    }

    .card {
        padding: 20px;
        margin-bottom: 16px;
    }

    .nav ul {
        gap: 4px;
    }

    .nav a {
        padding: 10px 16px;
        font-size: 13px;
    }

    .btn {
        padding: 12px 20px;
        font-size: 13px;
    }

    .gifts-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 16px;
    }

    .user-profile {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }

    .top-user-card {
        padding: 16px;
        gap: 12px;
    }

    .dashboard-header h1 {
        font-size: 24px;
    }

    .stat-value {
        font-size: 28px;
    }
}

/* Утилиты */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-bold { font-weight: 700; }
.text-small { font-size: 13px; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.d-flex { display: flex; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.hidden { display: none; }

/* Дополнительные эффекты */
.glass-effect {
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

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