/* ============================================
   Premium Proxy - Frontend Styles
   Modern, Professional & SEO-Optimized Design
   ============================================ */

:root {
    /* Color Palette */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #10b981;
    --danger: #ef4444;

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);

    /* Neutrals */
    --bg: #ffffff;
    --bg-gray: #f8fafc;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.header {
    background: white;
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

.header.sticky {
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo h1 {
    font-size: 1.75rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.tagline {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
}

.nav-menu a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    background: var(--gradient-hero);
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.95;
}

.stats-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 1rem;
    backdrop-filter: blur(10px);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* ============================================
   SECTIONS
   ============================================ */

section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text);
}

/* ============================================
   PROXY TYPES GRID
   ============================================ */

.proxy-types {
    background: var(--bg-gray);
}

.proxy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.proxy-card {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.proxy-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.proxy-card-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.proxy-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.proxy-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    min-height: 60px;
}

.proxy-card-stats {
    margin-bottom: 1.5rem;
}

.proxy-card-stats .count {
    display: inline-block;
    background: var(--bg-gray);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 600;
    color: var(--primary);
}

/* ============================================
   FEATURES GRID
   ============================================ */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-item {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    border: 2px solid var(--border);
    transition: border-color 0.3s;
}

.feature-item:hover {
    border-color: var(--primary);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.feature-item p {
    color: var(--text-muted);
}

/* ============================================
   BLOG GRID
   ============================================ */

.blog-preview {
    background: var(--bg-gray);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: white;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.blog-card-content {
    padding: 1.5rem;
}

.blog-category {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.blog-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.blog-card h3 a {
    color: var(--text);
    text-decoration: none;
    transition: color 0.3s;
}

.blog-card h3 a:hover {
    color: var(--primary);
}

.blog-card p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.blog-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta {
    background: var(--gradient-hero);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

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

.page-header {
    background: var(--gradient-primary);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.125rem;
    opacity: 0.95;
    margin-bottom: 1rem;
}

.page-stats {
    font-size: 1rem;
    opacity: 0.9;
}

/* ============================================
   FILTERS SECTION
   ============================================ */

.filters-section {
    background: var(--bg-gray);
    padding: 2rem 0;
    border-bottom: 1px solid var(--border);
}

.filters-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-form {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 600;
    color: var(--text);
}

.filter-group select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    background: white;
    cursor: pointer;
    min-width: 150px;
}

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

.proxy-list-section {
    padding-top: 2rem;
}

.proxy-table-wrapper {
    background: white;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 2rem;
}

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

.proxy-table thead {
    background: var(--bg-gray);
}

.proxy-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text);
    border-bottom: 2px solid var(--border);
}

.proxy-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

.proxy-table tbody tr {
    transition: background 0.2s;
}

.proxy-table tbody tr:hover {
    background: var(--bg-gray);
}

.proxy-address {
    background: var(--bg-gray);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    font-weight: 600;
}

.country-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.flag {
    font-size: 1.5rem;
}

/* Animated Ping Indicator */
.ping-indicator,
.speed-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ping-bar,
.speed-bar {
    width: 60px;
    height: 8px;
    background: var(--border);
    border-radius: 1rem;
    overflow: hidden;
}

.ping-fill,
.speed-fill {
    height: 100%;
    background: var(--gradient-success);
    border-radius: 1rem;
    transition: width 0.5s ease;
}

.ping-fill.animated,
.speed-fill.animated {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

.ping-value,
.speed-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
}

/* ============================================
   BADGES & STATUS
   ============================================ */

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.badge-primary {
    background: #dbeafe;
    color: #1e40af;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.status-alive {
    background: #d1fae5;
    color: #065f46;
}

.status-dead {
    background: #fee2e2;
    color: #991b1b;
}

.status-unknown {
    background: #f3f4f6;
    color: #4b5563;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

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

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

.btn-secondary {
    background: #6b7280;
    color: white;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

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

/* ============================================
   INFO SECTION
   ============================================ */

.info-section {
    background: var(--bg-gray);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.info-card {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
}

.info-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.info-card ol,
.info-card ul {
    margin-left: 1.5rem;
}

.info-card li {
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

/* ============================================
   PAGINATION
   ============================================ */

.pagination-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

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

.page-info {
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    color: var(--text);
}

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

.footer {
    background: #1e293b;
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h3,
.footer-col h4 {
    margin-bottom: 1rem;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col ul li a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

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

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

.no-results {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
}

.no-results p {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

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

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .proxy-table-wrapper {
        overflow-x: auto;
    }

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

    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-form {
        flex-direction: column;
    }

    .filter-group select {
        width: 100%;
    }
}