/* ===========================
   VARIABLES & RESET
   =========================== */

:root {
    /* Colors - Purple Theme */
    --bg-primary: #120b1b;
    --bg-secondary: #1a1222;
    --bg-card: rgba(26, 18, 34, 0.6);
    --bg-card-hover: rgba(26, 18, 34, 0.8);

    /* Gradient Colors */
    --gradient-start: #470e79;
    --gradient-mid: #7c3eb2;
    --gradient-end: #975cca;
    --gradient-hover: #af77df;

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --text-muted: #7a7a7a;

    /* Accent Colors */
    --accent-purple: #975cca;
    --accent-pink: #c77dff;
    --accent-green: #4ade80;
    --accent-red: #f87171;
    --accent-yellow: #fbbf24;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 3000px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

    /* Transitions */
    --transition-fast: 0.1s ease-in-out;
    --transition-normal: 0.2s ease-in-out;
    --transition-slow: 0.3s ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Manrope', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===========================
   CONTAINER
   =========================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===========================
   HEADER
   =========================== */

.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid rgba(151, 92, 202, 0.2);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.logo {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-mid), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.logo-subtitle {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: -4px;
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-normal);
    position: relative;
    padding: var(--spacing-sm) 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-purple);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-mid), var(--gradient-end));
}

.user-menu {
    display: flex;
    align-items: center;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.user-avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(151, 92, 202, 0.4);
}

/* ===========================
   MAIN CONTENT
   =========================== */

.main {
    padding: var(--spacing-2xl) 0;
    min-height: calc(100vh - 200px);
}

.page-header {
    margin-bottom: var(--spacing-xl);
}

.page-title {
    font-size: 50px;
    font-weight: 700;
    letter-spacing: -3px;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    font-weight: 400;
}

/* ===========================
   STATS GRID
   =========================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(151, 92, 202, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(124, 62, 178, 0.05), rgba(151, 92, 202, 0.05));
    opacity: 0;
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: rgba(151, 92, 202, 0.4);
    box-shadow: var(--shadow-lg);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    flex-shrink: 0;
}

.stat-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-change {
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.stat-change.positive {
    color: var(--accent-green);
}

.stat-change.negative {
    color: var(--accent-red);
}

.stat-change.neutral {
    color: var(--text-muted);
}

/* ===========================
   TABS
   =========================== */

.tabs-container {
    margin-bottom: var(--spacing-2xl);
}

.tabs-nav {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(151, 92, 202, 0.2);
    overflow-x: auto;
    scrollbar-width: none;
}

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

.tab-button {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: 'Manrope', Arial, sans-serif;
    font-size: 14px;
    font-weight: 500;
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition-normal);
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}

.tab-button:hover {
    color: var(--accent-purple);
}

.tab-button.active {
    color: var(--text-primary);
    border-bottom-color: var(--accent-purple);
}

.tab-content {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===========================
   CONTROLS PANEL
   =========================== */

.controls-panel {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(151, 92, 202, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 100;
}

.search-box {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.search-input {
    flex: 1;
    background: var(--bg-secondary);
    border: 1px solid rgba(151, 92, 202, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    color: var(--text-primary);
    font-family: 'Manrope', Arial, sans-serif;
    font-size: 14px;
    transition: var(--transition-normal);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(151, 92, 202, 0.1);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-button {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-button:hover {
    background: linear-gradient(135deg, var(--gradient-mid), var(--gradient-hover));
    transform: scale(1.05);
}

.filters {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-select,
.filter-input {
    background: var(--bg-secondary);
    border: 1px solid rgba(151, 92, 202, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-family: 'Manrope', Arial, sans-serif;
    font-size: 14px;
    transition: var(--transition-normal);
}

.filter-select:focus,
.filter-input:focus {
    outline: none;
    border-color: var(--accent-purple);
}

.filter-button,
.reset-button {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--text-primary);
    font-family: 'Manrope', Arial, sans-serif;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.filter-button:hover {
    background: linear-gradient(135deg, var(--gradient-mid), var(--gradient-hover));
    transform: translateY(-2px);
}

.reset-button {
    background: transparent;
    border: 1px solid rgba(151, 92, 202, 0.4);
}

.reset-button:hover {
    background: rgba(151, 92, 202, 0.1);
    border-color: var(--accent-purple);
}

/* ===========================
   TABLE
   =========================== */

.table-container {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(151, 92, 202, 0.15);
    border-radius: var(--radius-lg);
    overflow: hidden;
    max-height: 600px;
    overflow-y: auto;
}

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

.data-table thead {
    background: #1a1222;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(151, 92, 202, 0.2);
}

.data-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid rgba(151, 92, 202, 0.1);
    font-size: 14px;
}

.data-table tbody tr {
    transition: var(--transition-fast);
}

.data-table tbody tr:hover {
    background: rgba(151, 92, 202, 0.05);
}

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

/* Badge Styles */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
}

.badge.active {
    background: rgba(74, 222, 128, 0.2);
    color: var(--accent-green);
}

.badge.expired {
    background: rgba(248, 113, 113, 0.2);
    color: var(--accent-red);
}

.badge.in-channel {
    background: rgba(151, 92, 202, 0.2);
    color: var(--accent-purple);
}

.badge.not-in-channel {
    background: rgba(122, 122, 122, 0.2);
    color: var(--text-muted);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl) !important;
}

.empty-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

.empty-state p {
    color: var(--text-secondary);
    font-size: 16px;
}

.info-message {
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--text-secondary);
}

/* ===========================
   ANALYTICS SECTION
   =========================== */

.analytics-section {
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 35px;
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: var(--spacing-lg);
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.chart-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(151, 92, 202, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.chart-title {
    font-size: 18px;
    font-weight: 600;
}

.chart-filter {
    background: var(--bg-secondary);
    border: 1px solid rgba(151, 92, 202, 0.2);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-family: 'Manrope', Arial, sans-serif;
    font-size: 12px;
    cursor: pointer;
}

.chart-container {
    height: 300px;
    position: relative;
}

/* Info Cards */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.info-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(151, 92, 202, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.info-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.info-list,
.activity-list {
    list-style: none;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(151, 92, 202, 0.1);
}

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

.tariff-name {
    color: var(--text-primary);
}

.tariff-count {
    color: var(--text-secondary);
    font-weight: 500;
}

.activity-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(151, 92, 202, 0.1);
}

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

.activity-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
}

.activity-text {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.activity-time {
    font-size: 12px;
    color: var(--text-muted);
}

/* ===========================
   FOOTER
   =========================== */

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid rgba(151, 92, 202, 0.2);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-2xl);
}

.footer-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
}

/* ===========================
   RESPONSIVE DESIGN
   =========================== */

/* Tablet */
@media screen and (max-width: 1199px) {
    .container {
        max-width: 100%;
        padding: 0 var(--spacing-md);
    }

    .page-title {
        font-size: 35px;
        letter-spacing: -2px;
    }

    .page-subtitle {
        font-size: 16px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .info-cards {
        grid-template-columns: 1fr;
    }

    .nav {
        gap: var(--spacing-md);
    }
}

/* Mobile */
@media screen and (max-width: 639px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .header-content {
        flex-wrap: wrap;
    }

    .nav {
        order: 3;
        width: 100%;
        overflow-x: auto;
        scrollbar-width: none;
    }

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

    .page-title {
        font-size: 28px;
        letter-spacing: -1px;
    }

    .page-subtitle {
        font-size: 14px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }

    .stat-value {
        font-size: 24px;
    }

    .controls-panel {
        padding: var(--spacing-md);
    }

    .filters {
        flex-direction: column;
    }

    .filter-select,
    .filter-input,
    .filter-button,
    .reset-button {
        width: 100%;
    }

    .table-container {
        overflow-x: auto;
    }

    .data-table {
        min-width: 800px;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .chart-card {
        padding: var(--spacing-md);
    }

    .info-cards {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 24px;
        letter-spacing: -1px;
    }
}

/* ===========================
   FUNNEL VISUALIZATION
   =========================== */

.funnel-section {
    margin-bottom: var(--spacing-2xl);
}

.funnel-container {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(151, 92, 202, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.funnel-step {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.funnel-bar {
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-mid));
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.funnel-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.funnel-step:nth-child(2) .funnel-bar {
    background: linear-gradient(90deg, var(--gradient-mid), var(--gradient-end));
}

.funnel-step:nth-child(3) .funnel-bar {
    background: linear-gradient(90deg, var(--gradient-end), var(--gradient-hover));
}

.funnel-label {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.funnel-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.funnel-percent {
    min-width: 60px;
    text-align: right;
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-purple);
}

/* ===========================
   UTILITIES
   =========================== */

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

/* Loading Animation */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading {
    animation: spin 1s linear infinite;
}

/* ===========================
   TABLE FILTERS
   =========================== */

.table-filters {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    align-items: center;
}

.search-input {
    flex: 1;
    min-width: 250px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid rgba(175, 119, 223, 0.2);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    transition: all var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(175, 119, 223, 0.1);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.filter-dropdown {
    position: relative;
}

.filter-button {
    padding: 12px 20px;
    background: var(--bg-secondary);
    border: 1px solid rgba(175, 119, 223, 0.2);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.filter-button:hover {
    background: var(--gradient-start);
    border-color: var(--accent-purple);
}

.dropdown-content {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 300px;
    max-height: 400px;
    background: var(--bg-secondary);
    border: 1px solid rgba(175, 119, 223, 0.2);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    overflow: hidden;
}

.dropdown-content.show {
    display: flex;
    flex-direction: column;
}

.dropdown-header {
    padding: 12px;
    border-bottom: 1px solid rgba(175, 119, 223, 0.2);
}

.dropdown-search {
    width: 100%;
    padding: 10px 12px;
    background: rgba(71, 14, 121, 0.3);
    border: 1px solid rgba(175, 119, 223, 0.3);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    transition: all var(--transition);
}

.dropdown-search:focus {
    outline: none;
    border-color: var(--accent-purple);
    background: rgba(71, 14, 121, 0.5);
}

.dropdown-search::placeholder {
    color: var(--text-muted);
}

.dropdown-actions {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-bottom: 1px solid rgba(175, 119, 223, 0.2);
}

.filter-action {
    flex: 1;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid rgba(175, 119, 223, 0.3);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition);
}

.filter-action:hover {
    background: var(--gradient-start);
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

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

.filter-checkbox-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    cursor: pointer;
    transition: background var(--transition);
}

.filter-checkbox-item:hover {
    background: rgba(175, 119, 223, 0.1);
}

.filter-checkbox-item input[type="checkbox"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.filter-checkbox-item label {
    flex: 1;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    user-select: none;
}

.table-footer {
    padding: 12px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
    border-top: 1px solid rgba(175, 119, 223, 0.1);
}