/* ========================================
   LiberoVPN — Sleek Light Theme
   ======================================== */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #f6f6f6;
    --card: #ffffff;
    --nav-bg: #ffffff;
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --gradient: linear-gradient(135deg, #4f46e5, #7c3aed);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --text: #111827;
    --text-body: #374151;
    --text-muted: #6b7280;
    --text-caption: #9ca3af;
    --border: #e5e7eb;
    --input-bg: #f9fafb;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 6px 24px rgba(0,0,0,0.04);
    --shadow-hover: 0 8px 32px rgba(0,0,0,0.1);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

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

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }

h1, h2, h3, h4, h5, h6 {
    color: var(--text);
    letter-spacing: -0.025em;
    line-height: 1.2;
}
h1 { font-weight: 800; }
h2 { font-weight: 700; }
h3, h4 { font-weight: 600; }

img { max-width: 100%; height: auto; }

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

/* --- Navbar --- */
.navbar {
    background: var(--nav-bg);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0 24px;
}
.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.navbar-brand { display: flex; align-items: center; gap: 8px; }
.navbar-brand img { height: 36px; width: auto; }
.navbar-brand span {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
}
.navbar-brand .brand-accent { color: var(--primary); }

.nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-links a {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-body);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}
.nav-links a:hover { background: var(--input-bg); color: var(--primary); }
.nav-links a.active { color: var(--primary); background: rgba(79,70,229,0.08); }

.nav-actions { display: flex; align-items: center; gap: 12px; }

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    margin: 5px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.4;
}
.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 2px 8px rgba(79,70,229,0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79,70,229,0.4);
    color: #fff;
}
.btn-secondary {
    background: var(--card);
    color: var(--text);
    border: 1.5px solid var(--border);
}
.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
}
.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
    color: #fff;
}
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; color: #fff; }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* --- Cards --- */
.card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px;
    transition: var(--transition);
}
.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.card-static:hover { transform: none; box-shadow: var(--shadow); }

/* --- Hero Section --- */
.hero {
    background: var(--gradient);
    position: relative;
    overflow: hidden;
    padding: 100px 0 120px;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../images/hero-bg.svg') center/cover;
    opacity: 0.4;
}
.hero .container { position: relative; z-index: 1; }
.hero-content {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
}
.hero h1 {
    font-size: 3.25rem;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.1;
}
.hero p {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.85);
    margin-bottom: 36px;
    line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* --- Section --- */
.section { padding: 80px 0; }
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 56px;
}
.section-header h2 { font-size: 2.25rem; margin-bottom: 16px; }
.section-header p { color: var(--text-muted); font-size: 1.1rem; }
.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    margin-bottom: 12px;
}

/* --- Feature Grid --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card { text-align: center; padding: 40px 28px; }
.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: rgba(79,70,229,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
}
.feature-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.feature-card p { color: var(--text-muted); font-size: 0.95rem; }

/* --- Pricing --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}
.pricing-card { padding: 40px 32px; text-align: center; position: relative; border: 1.5px solid var(--border); }
.pricing-card.featured {
    border: 2px solid var(--primary);
    transform: scale(1.04);
    z-index: 2;
    box-shadow: 0 12px 48px rgba(79,70,229,0.15);
}
.pricing-card.featured:hover { transform: scale(1.06); }
.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 6px 20px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.pricing-card h3 { font-size: 1.3rem; margin-bottom: 8px; }
.pricing-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text);
    margin: 16px 0 4px;
    letter-spacing: -0.03em;
}
.pricing-price span { font-size: 1rem; font-weight: 400; color: var(--text-muted); }
.pricing-period { color: var(--text-caption); font-size: 0.9rem; margin-bottom: 28px; }
.pricing-features { list-style: none; margin-bottom: 32px; text-align: left; }
.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-body);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features .check { color: var(--success); font-weight: 700; }

/* --- Server List --- */
.region-group { margin-bottom: 40px; }
.region-group h3 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.85rem;
    font-weight: 700;
}
.server-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}
.server-card {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid var(--border);
}
.server-card:hover { transform: translateY(-2px); }
.server-flag { font-size: 2rem; }
.server-info { flex: 1; }
.server-info h4 { font-size: 0.95rem; margin-bottom: 2px; }
.server-info p { font-size: 0.8rem; color: var(--text-muted); }
.server-meta { text-align: right; min-width: 90px; }

.load-bar {
    width: 80px;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 4px;
    margin-left: auto;
}
.load-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
}
.load-bar-fill.low { background: var(--success); }
.load-bar-fill.medium { background: var(--warning); }
.load-bar-fill.high { background: var(--danger); }

.server-load-text { font-size: 0.75rem; color: var(--text-muted); text-align: right; }

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.status-online { background: rgba(16,185,129,0.1); color: var(--success); }
.status-offline { background: rgba(239,68,68,0.1); color: var(--danger); }
.status-maintenance { background: rgba(245,158,11,0.1); color: var(--warning); }
.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}
.premium-badge {
    font-size: 0.7rem;
    font-weight: 700;
    background: rgba(79,70,229,0.1);
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 6px;
    margin-left: 8px;
}

/* --- Forms --- */
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 6px;
    color: var(--text);
}
.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--input-bg);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text);
    transition: var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.12);
    background: var(--card);
}
.form-control::placeholder { color: var(--text-caption); }

.form-card {
    max-width: 440px;
    margin: 60px auto;
    padding: 40px;
}
.form-card h2 { text-align: center; margin-bottom: 8px; font-size: 1.75rem; }
.form-card .form-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 32px;
}
.form-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

textarea.form-control { resize: vertical; min-height: 100px; }

/* --- Alerts --- */
.alert {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.95rem;
    font-weight: 500;
}
.alert-success { background: rgba(16,185,129,0.1); color: #065f46; border: 1px solid rgba(16,185,129,0.2); }
.alert-danger { background: rgba(239,68,68,0.1); color: #991b1b; border: 1px solid rgba(239,68,68,0.2); }
.alert-warning { background: rgba(245,158,11,0.1); color: #92400e; border: 1px solid rgba(245,158,11,0.2); }
.alert-info { background: rgba(79,70,229,0.08); color: #3730a3; border: 1px solid rgba(79,70,229,0.15); }
.alert-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
    padding: 0 4px;
    line-height: 1;
}
.alert-close:hover { opacity: 1; }

/* --- Dashboard --- */
.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}
.dashboard-header h1 { font-size: 1.75rem; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}
.stat-card {
    padding: 24px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
}
.stat-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
}
.stat-card.accent-primary::before { background: var(--gradient); }
.stat-card.accent-success::before { background: var(--success); }
.stat-card.accent-warning::before { background: var(--warning); }
.stat-card.accent-danger::before { background: var(--danger); }

.stat-card:hover { transform: translateY(-2px); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; margin-bottom: 8px; }
.stat-value { font-size: 1.75rem; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.stat-detail { font-size: 0.8rem; color: var(--text-caption); margin-top: 4px; }

.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

/* --- Tables --- */
.table-wrapper { overflow-x: auto; border-radius: var(--radius); }
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}
thead th {
    background: var(--input-bg);
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 2px solid var(--border);
}
tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-body);
}
tbody tr:nth-child(even) { background: #fafafa; }
tbody tr:hover { background: rgba(79,70,229,0.03); }

/* --- Pagination --- */
.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 24px;
    list-style: none;
}
.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border);
    color: var(--text-body);
    transition: var(--transition);
}
.pagination a:hover { border-color: var(--primary); color: var(--primary); }
.pagination .active { background: var(--gradient); color: #fff; border-color: transparent; }

/* --- Testimonials --- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.testimonial-card { padding: 32px; border: 1px solid var(--border); }
.testimonial-text {
    font-style: italic;
    color: var(--text-body);
    margin-bottom: 20px;
    line-height: 1.7;
    font-size: 0.95rem;
}
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
}
.testimonial-name { font-weight: 600; color: var(--text); font-size: 0.9rem; }
.testimonial-role { font-size: 0.8rem; color: var(--text-muted); }

/* --- CTA Section --- */
.cta-section {
    background: var(--gradient);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../images/hero-bg.svg') center/cover;
    opacity: 0.3;
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 { color: #fff; font-size: 2.25rem; margin-bottom: 16px; }
.cta-section p { color: rgba(255,255,255,0.8); font-size: 1.1rem; margin-bottom: 32px; }

/* --- Footer --- */
.footer {
    background: var(--card);
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-about p { color: var(--text-muted); font-size: 0.9rem; margin-top: 12px; line-height: 1.7; }
.footer h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text);
    margin-bottom: 16px;
}
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 10px; }
.footer ul a { color: var(--text-muted); font-size: 0.9rem; }
.footer ul a:hover { color: var(--primary); }
.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-caption);
}

/* --- Auth Pages --- */
.auth-page {
    min-height: calc(100vh - 72px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
}

/* --- Payment Card --- */
.payment-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 900px;
    margin: 60px auto;
}
.payment-summary { padding: 32px; border: 1px solid var(--border); }
.payment-summary h3 { margin-bottom: 20px; }
.payment-line { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--border); }
.payment-total { font-weight: 700; font-size: 1.1rem; color: var(--text); border-bottom: none; }
.cc-input-group { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* --- Region Stats --- */
.region-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 48px;
}
.region-stat-card {
    text-align: center;
    padding: 24px 16px;
    border: 1px solid var(--border);
}
.region-stat-card .region-count { font-size: 2rem; font-weight: 800; color: var(--primary); }
.region-stat-card .region-name { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }

/* --- Quick Connect (Dashboard) --- */
.quick-connect { padding: 28px; }
.quick-connect h3 { margin-bottom: 16px; font-size: 1.1rem; }
.connect-server-list { max-height: 320px; overflow-y: auto; }
.connect-server-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}
.connect-server-item:hover { background: var(--input-bg); border-color: var(--border); }
.connect-server-item.active { background: rgba(79,70,229,0.08); border-color: var(--primary); }
.connect-btn { margin-top: 16px; }

/* --- Activity List --- */
.activity-list { padding: 28px; border: 1px solid var(--border); }
.activity-list h3 { margin-bottom: 16px; font-size: 1.1rem; }
.activity-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.activity-item:last-child { border-bottom: none; }
.activity-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.activity-dot.connected { background: var(--success); }
.activity-dot.disconnected { background: var(--text-caption); }
.activity-text { flex: 1; font-size: 0.9rem; color: var(--text-body); }
.activity-time { font-size: 0.8rem; color: var(--text-caption); white-space: nowrap; }

/* --- Password Change --- */
.password-section {
    margin-top: 32px;
    padding: 28px;
    border: 1px solid var(--border);
}
.password-section h3 { margin-bottom: 20px; font-size: 1.1rem; }

/* --- Search/Filter --- */
.search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.search-bar .form-control { max-width: 300px; }

/* --- Utilities --- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.d-flex { display: flex; }
.gap-2 { gap: 16px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

/* --- Responsive --- */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: repeat(3, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .hero { padding: 60px 0 80px; }
    .hero h1 { font-size: 2.25rem; }
    .section { padding: 60px 0; }
    .section-header h2 { font-size: 1.75rem; }

    .nav-links, .nav-actions {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--card);
        padding: 20px 24px;
        box-shadow: var(--shadow);
        border-top: 1px solid var(--border);
    }
    .nav-links.open, .nav-actions.open { display: flex; }
    .nav-actions.open .btn { width: 100%; text-align: center; }
    .mobile-toggle { display: block; }

    .features-grid { grid-template-columns: 1fr; }
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    .pricing-card.featured { transform: none; }
    .pricing-card.featured:hover { transform: translateY(-4px); }
    .testimonials-grid { grid-template-columns: 1fr; }
    .payment-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.75rem; }
    .hero p { font-size: 1rem; }
    .card { padding: 24px; }
    .stats-grid { grid-template-columns: 1fr; }
    .server-grid { grid-template-columns: 1fr; }
    .btn-lg { padding: 14px 28px; font-size: 0.95rem; }
    .container { padding: 0 16px; }
}