/*
Theme Name: Durev VPN Theme
Theme URI: https://example.com/durev-vpn-theme
Author: ChatGPT
Author URI: https://openai.com
Description: Лёгкая, современная, адаптивная тема для Durev VPN.
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: durev-vpn-theme
*/

:root {
    --color-bg: #050816;
    --color-surface: #0b1020;
    --color-surface-alt: #101633;
    --color-primary: #00f5ff;
    --color-primary-soft: rgba(0, 245, 255, 0.12);
    --color-secondary: #ff4ecd;
    --color-text: #f5f7ff;
    --color-text-muted: #9ca3af;
    --color-border: rgba(148, 163, 184, 0.35);
    --color-danger: #fb7185;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
    --shadow-soft: 0 24px 70px rgba(15, 23, 42, 0.78);
    --container-width: 1200px;
    --transition-fast: 0.18s ease-out;
    --transition-med: 0.24s ease-out;
}

/* RESET / BASE */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
        "Segoe UI", sans-serif;
    background: radial-gradient(120% 120% at 0% 0%, #111827 0, #050816 45%, #020617 100%);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
    text-decoration: underline;
}

button {
    font-family: inherit;
}

/* LAYOUT */

.site {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-main {
    flex: 1;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 clamp(16px, 4vw, 32px);
}

/* HEADER */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(22px);
    background: linear-gradient(
        to bottom,
        rgba(15, 23, 42, 0.95),
        rgba(15, 23, 42, 0.70),
        transparent
    );
    border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: 10px;
}

.site-logo {
    display: flex;
    align-items: center;
    justify-content: center;
}


.site-title-group {
    display: flex;
    flex-direction: column;
}

.site-title {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.03em;
}

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

/* NAV */

.primary-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.primary-nav ul {
    list-style: none;
    display: flex;
    gap: 18px;
    margin: 0;
    padding: 0;
}

.primary-nav a {
    font-size: 14px;
    color: #fff;
    position: relative;
    padding: 8px;
    transition: color var(--transition-fast);
}


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

.primary-nav a:hover::after,
.primary-nav .current-menu-item a::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* BUTTONS */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 999px;
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast),
        background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn-icon {
    font-size: 16px;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary), #4ade80);
    color: #020617;
    box-shadow: 0 16px 40px rgba(34, 211, 238, 0.55);
}

.btn--primary:hover {
    transform: translateY(-1px) scale(1.01);
    box-shadow: 0 20px 60px rgba(34, 211, 238, 0.7);
}

.btn--ghost {
    background: rgba(15, 23, 42, 0.7);
    color: var(--color-text-muted);
    border-color: rgba(148, 163, 184, 0.6);
}

.btn--ghost:hover {
    background: rgba(15, 23, 42, 0.95);
    color: var(--color-text);
}

/* BURGER */

.burger {
    display: none;
    width: 36px;
    height: 36px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.5);
    background: radial-gradient(circle at 30% 10%, #1e293b 0, #020617 80%);
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.burger-lines {
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: var(--color-text);
    position: relative;
}

.burger-lines::before,
.burger-lines::after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: var(--color-text);
    transition: transform var(--transition-fast), opacity var(--transition-fast), top var(--transition-fast), bottom var(--transition-fast);
}

.burger-lines::before {
    top: -6px;
}

.burger-lines::after {
    bottom: -6px;
}

.burger.is-open .burger-lines {
    background: transparent;
}

.burger.is-open .burger-lines::before {
    top: 0;
    transform: rotate(45deg);
}

.burger.is-open .burger-lines::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* MOBILE NAV PANEL */

.mobile-nav {
    display: none;
    position: fixed;
    inset: 60px 12px auto 12px;
    border-radius: 18px;
    background: radial-gradient(140% 140% at 0% 0%, rgba(56, 189, 248, 0.18) 0, #020617 40%, #020617 100%);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(148, 163, 184, 0.45);
    padding: 14px 16px 10px;
    z-index: 40;
}

.mobile-nav-inner {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-nav a {
    display: block;
    padding: 8px 10px;
    border-radius: 12px;
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid transparent;
    font-size: 14px;
}

.mobile-nav a:hover {
    color: var(--color-text);
    border-color: rgba(148, 163, 184, 0.6);
    background: rgba(15, 23, 42, 0.8);
}

/* HERO */

.hero {
    padding: 32px 0 40px;
}

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 32px;
    align-items: center;
}

.hero-badge-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(56, 189, 248, 0.7);
    color: var(--color-primary);
}

.hero-badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: radial-gradient(circle at 30% 0, #ffffff 0, #22c55e 30%, #16a34a 100%);
    box-shadow: 0 0 18px rgba(22, 163, 74, 0.9);
}

.hero-title {
    font-size: clamp(30px, 4vw, 40px);
    line-height: 1.1;
    letter-spacing: 0.02em;
    margin: 0 0 14px;
}

.hero-title span {
    background: linear-gradient(120deg, #00f5ff, #4ade80, #ff4ecd);
    -webkit-background-clip: text;
    color: transparent;
}

.hero-subtitle {
    font-size: 15px;
    color: var(--color-text-muted);
    max-width: 480px;
    margin-bottom: 20px;
}

.hero-cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 18px;
}

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

.hero-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 12px;
    color: var(--color-text-muted);
}

.hero-metric {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-metric-dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--color-primary);
}

/* HERO ILLUSTRATION */

.hero-visual {
    position: relative;
}

.hero-card {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 18px 18px 16px;
    background: radial-gradient(180% 180% at 0% 0%, rgba(56, 189, 248, 0.25) 0, #020617 50%, #020617 100%);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(148, 163, 184, 0.5);
    overflow: hidden;
}

.hero-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.hero-card-title {
    font-size: 13px;
    color: var(--color-text-muted);
}

.hero-card-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(22, 163, 74, 0.18);
    color: #bbf7d0;
}

.hero-card-main {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.95fr);
    gap: 14px;
    align-items: center;
}

.hero-connection {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.hero-connection-label {
    font-size: 11px;
    color: var(--color-text-muted);
}

.hero-connection-location {
    font-size: 14px;
    font-weight: 600;
}

.hero-connection-speed {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--color-text-muted);
}

.hero-toggle {
    width: 50px;
    height: 26px;
    border-radius: 999px;
    background: radial-gradient(circle at 25% 0, #bbf7d0 0, #22c55e 35%, #166534 100%);
    position: relative;
    box-shadow: 0 0 24px rgba(22, 163, 74, 0.9);
}

.hero-toggle-knob {
    position: absolute;
    top: 3px;
    right: 3px;
    width: 20px;
    height: 20px;
    border-radius: 999px;
    background: #ecfeff;
}

.hero-apps-row {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 11px;
    color: var(--color-text-muted);
}

.hero-app-pill {
    padding: 4px 9px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.55);
}

/* SECTIONS / GENERAL */

.section {
    padding: 26px 0 30px;
}

.section--tight {
    padding-top: 20px;
    padding-bottom: 24px;
}

.section--alt {
    background: radial-gradient(180% 180% at 100% 0%, rgba(94, 234, 212, 0.15) 0, rgba(15, 23, 42, 0.95) 45%, #020617 100%);
}

.section-header {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 20px;
}

.section-kicker {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--color-text-muted);
}

.section-title {
    font-size: 22px;
    margin: 0;
}

.section-desc {
    font-size: 14px;
    color: var(--color-text-muted);
    max-width: 540px;
}

/* GRIDS */

.grid {
    display: grid;
    gap: 16px;
}

.grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* CARDS */

.card {
    border-radius: var(--radius-md);
    background: radial-gradient(150% 150% at 0% 0%, rgba(56, 189, 248, 0.12) 0, rgba(15, 23, 42, 0.96) 50%, #020617 100%);
    border: 1px solid rgba(148, 163, 184, 0.45);
    padding: 14px 14px 16px;
    box-shadow: 0 14px 40px rgba(15, 23, 42, 0.85);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
}

.card-title {
    font-size: 15px;
    margin: 0;
}

.card-tag {
    font-size: 11px;
    border-radius: 999px;
    padding: 3px 9px;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.6);
    color: var(--color-text-muted);
}

.card-body {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* FEATURES */

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.feature-card-icon {
    width: 30px;
    height: 30px;
    border-radius: 14px;
    background: radial-gradient(circle at 30% 0, #e0f2fe 0, #38bdf8 35%, #0f172a 100%);
    margin-bottom: 10px;
}

.feature-card-title {
    font-size: 14px;
    margin: 0 0 6px;
}

.feature-card-text {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* STATS */

.stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
}

.stat-pill {
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.6);
}

/* PRICING */

.pricing-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.pricing-card {
    border-radius: var(--radius-md);
    background: radial-gradient(150% 150% at 0% 0%, rgba(59, 130, 246, 0.2) 0, #020617 55%, #020617 100%);
    border: 1px solid rgba(129, 140, 248, 0.7);
    padding: 14px 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pricing-card--highlight {
    background: radial-gradient(160% 160% at 0% 0%, rgba(45, 212, 191, 0.28) 0, #020617 55%, #020617 100%);
    border-color: rgba(45, 212, 191, 0.9);
    box-shadow: 0 20px 60px rgba(45, 212, 191, 0.55);
}

.pricing-plan-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-muted);
}

.pricing-price {
    font-size: 22px;
    font-weight: 700;
}

.pricing-price span {
    font-size: 12px;
    color: var(--color-text-muted);
    font-weight: 400;
}

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

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 6px 0 12px;
    font-size: 12px;
    color: var(--color-text-muted);
}

.pricing-features li {
    display: flex;
    gap: 6px;
    align-items: flex-start;
}

/* DEVICES */

.devices-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
}

.device-pill {
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.6);
}

/* FAQ */

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.faq-item {
    border-radius: var(--radius-md);
    background: rgba(15, 23, 42, 0.96);
    border: 1px solid rgba(148, 163, 184, 0.5);
    overflow: hidden;
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    cursor: pointer;
}

.faq-question-text {
    font-size: 14px;
}

.faq-toggle-icon {
    font-size: 18px;
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
}

.faq-item.is-open .faq-toggle-icon {
    transform: rotate(90deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-med);
    padding: 0 12px;
}

.faq-answer-inner {
    padding: 0 0 10px;
    font-size: 13px;
    color: var(--color-text-muted);
}

/* TESTIMONIALS */

.testimonials-row {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 4px;
    scroll-snap-type: x mandatory;
}

.testimonial-card {
    min-width: 220px;
    scroll-snap-align: start;
    border-radius: var(--radius-md);
    background: rgba(15, 23, 42, 0.96);
    border: 1px solid rgba(148, 163, 184, 0.5);
    padding: 12px 12px 14px;
    font-size: 13px;
    color: var(--color-text-muted);
}

.testimonial-name {
    font-weight: 600;
    margin-bottom: 4px;
}

/* SUPPORT */

.support-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 18px;
}

.support-card {
    border-radius: var(--radius-md);
    background: rgba(15, 23, 42, 0.96);
    border: 1px solid rgba(148, 163, 184, 0.6);
    padding: 14px 14px 16px;
}

.support-list {
    list-style: none;
    padding: 0;
    margin: 10px 0 0;
    font-size: 13px;
    color: var(--color-text-muted);
}

.support-list li {
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

/* TYPOGRAPHY UTILS */

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

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

/* CONTENT STYLES (pages) */

.page-header {
    padding-top: 28px;
    padding-bottom: 10px;
}

.page-title {
    margin: 0 0 6px;
    font-size: 24px;
}

.breadcrumbs {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-bottom: 6px;
}

.page-intro {
    font-size: 14px;
    color: var(--color-text-muted);
    max-width: 620px;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) minmax(0, 1.2fr);
    gap: 20px;
}

.content-card {
    border-radius: var(--radius-md);
    background: rgba(15, 23, 42, 0.96);
    border: 1px solid rgba(148, 163, 184, 0.5);
    padding: 14px 14px 16px;
    font-size: 14px;
}

.content-card h2 {
    margin-top: 0;
    margin-bottom: 8px;
    font-size: 18px;
}

.content-card h3 {
    margin-top: 12px;
    margin-bottom: 6px;
    font-size: 15px;
}

.content-card ul {
    padding-left: 18px;
    margin: 6px 0 8px;
}

.content-card li {
    margin-bottom: 4px;
}

/* TABLE */

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.table th,
.table td {
    padding: 8px 10px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.table th {
    text-align: left;
    font-weight: 600;
}

/* FOOTER */

.site-footer {
    border-top: 1px solid rgba(148, 163, 184, 0.35);
    background: radial-gradient(180% 180% at 50% 0%, rgba(56, 189, 248, 0.14) 0, #020617 40%, #020617 100%);
    padding: 18px 0;
    margin-top: 20px;
}

.site-footer-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
}

/* 404 */

.not-found {
    padding: 40px 0 60px;
}

.not-found-card {
    max-width: 460px;
    margin: 0 auto;
    text-align: center;
    border-radius: var(--radius-lg);
    background: rgba(15, 23, 42, 0.96);
    border: 1px solid rgba(248, 113, 113, 0.7);
    padding: 22px 20px 24px;
    box-shadow: var(--shadow-soft);
}

/* RESPONSIVE */

@media (max-width: 960px) {
    .primary-nav {
        display: none;
    }
    .burger {
        display: inline-flex;
    }
    .hero-inner {
        grid-template-columns: 1fr;
    }
    .hero {
        padding-top: 20px;
    }
    .features-grid,
    .pricing-grid,
    .support-grid,
    .content-grid,
    .grid--3,
    .grid--2 {
        grid-template-columns: 1fr;
    }
    .pricing-grid {
        grid-auto-rows: 1fr;
    }
}

@media (max-width: 640px) {
    .hero-badge-row {
        gap: 8px;
    }
    .hero-title {
        font-size: 26px;
    }
    .page-header {
        padding-top: 20px;
    }
    .site-header-inner {
        padding-top: 10px;
        padding-bottom: 10px;
    }
}

.primary-nav li {
    position: relative;
}

.primary-nav li.menu-item-has-children > a::after {
    content: "▾";
    margin-left: 6px;
    font-size: 10px;
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
}

.primary-nav li.menu-item-has-children:hover > a::after {
    transform: rotate(180deg);
}

.primary-nav .sub-menu {
    position: absolute;
    left: 0;
    top: 34px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 8px 0;
    min-width: 160px;
    display: none;
    flex-direction: column;
    gap: 0;
    box-shadow: var(--shadow-soft);
    z-index: 30;
}

.primary-nav li:hover > .sub-menu {
    display: flex;
}

.primary-nav .sub-menu a {
    padding: 8px 14px;
    display: block;
    font-size: 14px;
    color: var(--color-text-muted);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.primary-nav .sub-menu a:hover {
    background: rgba(255,255,255,0.05);
    color: var(--color-text);
}

/* MOBILE DROPDOWN */
.mobile-nav li.menu-item-has-children > a {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mobile-nav .sub-menu {
    display: none;
    padding-left: 10px;
    border-left: 1px solid rgba(255,255,255,0.08);
}

.mobile-nav li.open > .sub-menu {
    display: block;
}