/**
 * Credits Portal - Styles
 */

:root {
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --sms-color: #3B82F6;
    --ia-color: #8B5CF6;
    --vocal-color: #10B981;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--gray-50);
    color: var(--gray-900);
    line-height: 1.5;
    min-height: 100vh;
}

#app {
    min-height: 100vh;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--gray-900);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover {
    background: #059669;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 1rem;
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--gray-100);
}

.card-body {
    padding: 1.5rem;
}

/* Balance Cards */
.balance-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .balance-grid {
        grid-template-columns: 1fr;
    }
}

.balance-card {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    border: 2px solid var(--gray-200);
    transition: all 0.2s;
    cursor: pointer;
}

.balance-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.balance-card.active {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(99, 102, 241, 0.1));
}

.balance-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.balance-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.balance-label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

.tab {
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-500);
    background: none;
    border: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab:hover {
    color: var(--gray-700);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Chart */
.chart-container {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid var(--gray-200);
    margin-bottom: 2rem;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.chart-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 200px;
    padding: 0 1rem;
}

.chart-bar-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.chart-bar {
    width: 100%;
    max-width: 40px;
    border-radius: 4px 4px 0 0;
    transition: all 0.3s;
    min-height: 2px;
}

.chart-bar:hover {
    opacity: 0.8;
}

.chart-label {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.chart-value {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-700);
}

/* Transactions List */
.transactions-list {
    display: flex;
    flex-direction: column;
}

.transaction-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--gray-100);
    transition: background 0.2s;
}

.transaction-item:hover {
    background: var(--gray-50);
}

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

.transaction-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.transaction-icon.credit {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.transaction-icon.debit {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.transaction-details {
    flex: 1;
}

.transaction-title {
    font-weight: 500;
    color: var(--gray-900);
    font-size: 0.875rem;
}

.transaction-meta {
    font-size: 0.75rem;
    color: var(--gray-500);
    display: flex;
    gap: 0.5rem;
}

.transaction-amount {
    font-weight: 600;
    font-size: 0.875rem;
}

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

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

/* Packs Grid */
.packs-section {
    margin-top: 2rem;
}

.packs-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.packs-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.packs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.pack-card {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.pack-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.pack-card.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(99, 102, 241, 0.1));
}

.pack-popular {
    position: absolute;
    top: -10px;
    right: 1rem;
    background: var(--primary);
    color: white;
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
}

.pack-units {
    font-size: 2rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.pack-bonus {
    font-size: 0.875rem;
    color: var(--success);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.pack-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.pack-unit-price {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.stat-card {
    background: white;
    border-radius: 0.75rem;
    padding: 1rem;
    border: 1px solid var(--gray-200);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* Loading */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem;
}

/* Login Page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
}

.login-card {
    background: white;
    border-radius: 1.5rem;
    padding: 3rem;
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.login-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.login-icon i {
    font-size: 2.5rem;
    color: white;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--gray-500);
    margin-bottom: 2rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--gray-500);
}

.empty-state i {
    font-size: 3rem;
    color: var(--gray-300);
    margin-bottom: 1rem;
}

/* Period Selector */
.period-select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray-700);
    background: white;
    cursor: pointer;
}

.period-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* User Menu */
.user-menu {
    position: relative;
}

.user-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-radius: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
}

.user-button:hover {
    background: var(--gray-100);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.user-name {
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.875rem;
}

/* Main Content */
.main-content {
    padding: 2rem 0;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.page-subtitle {
    color: var(--gray-500);
    margin-bottom: 2rem;
}

/* Utility */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }