/* =========================================================
   MatryoshkaVPN — Design System
   Mirror of Telegram Web App styles
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ── Tokens ────────────────────────────────────────────── */
:root {
  --bg:          #080B16;
  --bg-2:        #0A0E1A;
  --surface:     rgba(17, 24, 47, 0.75);
  --surface-2:   rgba(17, 24, 47, 0.55);
  --neon:        #00D8FF;
  --neon-blue:   #0052FF;
  --neon-mid:    #0078FF;
  --text:        #F3F4F6;
  --text-muted:  #9CA3AF;
  --text-dim:    #6B7280;
  --border:      rgba(0, 200, 255, 0.18);
  --border-dim:  rgba(255, 255, 255, 0.06);
  --success:     #10B981;
  --warning:     #F59E0B;
  --danger:      #EF4444;
  --purple:      #8B5CF6;
  --radius-sm:   10px;
  --radius:      16px;
  --radius-lg:   22px;
  --radius-xl:   28px;
  --blur:        blur(24px);
  --shadow-glow: 0 0 30px rgba(0, 216, 255, 0.15);
  --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.6);
  --transition:  0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }
ul { list-style: none; }

/* ── Background Glow ───────────────────────────────────── */
.bg-glow {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(0,160,255,0.22) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 80% 100%, rgba(0,82,255,0.1) 0%, transparent 60%);
}

/* ── Glass Card ────────────────────────────────────────── */
.glass-card {
  background: var(--surface);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 24px;
}

.glass-card-sm {
  background: var(--surface-2);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 16px;
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px;
  border: none; border-radius: 14px;
  font-size: 14px; font-weight: 700; letter-spacing: 0.3px;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  white-space: nowrap;
  position: relative; overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition);
}

.btn:hover::after { background: rgba(255,255,255,0.06); }
.btn:active { transform: scale(0.97); }

.btn-neon {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon));
  color: #060813;
  box-shadow: 0 6px 24px rgba(0, 216, 255, 0.3);
}

.btn-neon:hover {
  box-shadow: 0 10px 36px rgba(0, 216, 255, 0.45);
  transform: translateY(-1px);
}

.btn-ghost {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-dim);
  color: var(--text);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--border);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--neon);
  color: var(--neon);
}

.btn-outline:hover {
  background: rgba(0,216,255,0.08);
}

.btn-danger {
  background: linear-gradient(135deg, #b91c1c, #ef4444);
  color: #fff;
  box-shadow: 0 6px 20px rgba(239,68,68,0.3);
}

.btn-sm { padding: 9px 18px; font-size: 12px; border-radius: 10px; }
.btn-lg { padding: 16px 36px; font-size: 15px; }
.btn-full { width: 100%; }

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ── Text Utilities ────────────────────────────────────── */
.text-neon   { color: var(--neon); }
.text-muted  { color: var(--text-muted); }
.text-dim    { color: var(--text-dim); }
.text-success{ color: var(--success); }
.text-warning{ color: var(--warning); }
.text-danger { color: var(--danger); }
.text-purple { color: var(--purple); }

.label-caps {
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--text-muted);
}

/* ── Badges ────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 12px; border-radius: 20px;
  font-size: 10px; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.5px;
}

.badge-neon  { background: rgba(0,216,255,0.12); color: var(--neon); border: 1px solid rgba(0,216,255,0.25); }
.badge-success { background: rgba(16,185,129,0.12); color: var(--success); border: 1px solid rgba(16,185,129,0.25); }
.badge-warning { background: linear-gradient(135deg,#F59E0B,#EF4444); color: #fff; }
.badge-green   { background: linear-gradient(135deg,#10B981,#059669); color: #fff; }
.badge-purple  { background: linear-gradient(135deg,#8B5CF6,#7C3AED); color: #fff; }
.badge-danger  { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.25); }

/* ── Inputs ────────────────────────────────────────────── */
.input {
  width: 100%;
  padding: 13px 16px;
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.input:focus {
  border-color: rgba(0,216,255,0.5);
  box-shadow: 0 0 0 3px rgba(0,216,255,0.1);
}

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

.input-group { position: relative; }
.input-group .input { padding-left: 44px; }
.input-group .input-icon {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); display: flex; align-items: center;
}

/* ── Sections ──────────────────────────────────────────── */
.section { padding: 80px 0; position: relative; }
.section-sm { padding: 48px 0; }

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

.section-label {
  font-size: 11px; font-weight: 800;
  text-transform: uppercase; letter-spacing: 1.5px;
  color: var(--neon);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.5px;
}

.section-sub {
  font-size: 16px;
  color: var(--text-muted);
  margin-top: 12px;
  max-width: 560px;
}

/* ── Grid ──────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ── Divider ───────────────────────────────────────────── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 24px 0;
}

/* ── Tag Pills ─────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 4px 10px; border-radius: 8px;
  font-size: 11px; font-weight: 600;
  background: rgba(0,216,255,0.08);
  border: 1px solid rgba(0,216,255,0.15);
  color: var(--neon);
}

/* ── Navbar ────────────────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 24px;
  height: 76px;
  display: flex; align-items: center;
  background: rgba(8, 11, 22, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-dim);
  transition: background var(--transition), border-color var(--transition);
}

.navbar.scrolled {
  background: rgba(8, 11, 22, 0.97);
  border-bottom-color: var(--border);
}

.navbar-inner {
  max-width: 1200px; width: 100%; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}

.navbar-logo {
  display: flex; align-items: center; gap: 14px;
  font-size: 20px; font-weight: 900;
  letter-spacing: 1px; text-transform: uppercase;
}

.navbar-logo img {
  width: 60px !important;
  height: 60px !important;
  max-width: 60px !important;
  max-height: 60px !important;
  object-fit: contain;
  filter: drop-shadow(0 2px 14px rgba(0, 216, 255, 0.6));
  transition: transform 0.2s ease;
}

.navbar-logo:hover img {
  transform: scale(1.05);
}

.navbar-logo .logo-vpn { color: var(--neon); }

.navbar-nav {
  display: flex; align-items: center; gap: 4px;
}

.nav-link {
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 13px; font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-link.active { color: var(--neon); }

.navbar-actions { display: flex; align-items: center; gap: 10px; }

.lang-switch {
  display: flex; align-items: center; gap: 2px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-dim);
  border-radius: 10px; padding: 2px;
}

.lang-btn {
  padding: 5px 10px; border-radius: 8px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.5px;
  border: none; background: transparent;
  color: var(--text-muted);
  transition: all var(--transition);
}

.lang-btn.active {
  background: var(--neon);
  color: #060813;
}

/* ── Mobile Nav ────────────────────────────────────────── */
.burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; padding: 4px; cursor: pointer;
}

.burger span {
  display: block; width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 99;
  padding-top: 68px;
  background: rgba(8,11,22,0.97);
  backdrop-filter: blur(20px);
  flex-direction: column; align-items: center; gap: 6px;
  padding: 80px 24px 24px;
}

.mobile-menu.open { display: flex; }
.mobile-menu .nav-link { font-size: 18px; width: 100%; text-align: center; padding: 14px; }

/* ── Stat Card ─────────────────────────────────────────── */
.stat-card {
  text-align: center;
  padding: 24px 16px;
}

.stat-value {
  font-size: 40px; font-weight: 900;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 13px; font-weight: 500;
  color: var(--text-muted);
}

/* ── Feature Card ──────────────────────────────────────── */
.feature-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border-dim);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  border-color: var(--border);
  transform: translateY(-3px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.5), var(--shadow-glow);
}

.feature-icon {
  width: 48px; height: 48px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 16px;
  background: rgba(0,216,255,0.08);
  border: 1px solid rgba(0,216,255,0.15);
}

.feature-title {
  font-size: 16px; font-weight: 700;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 13px; color: var(--text-muted); line-height: 1.6;
}

/* ── Tariff Card ───────────────────────────────────────── */
.tariff-card {
  background: linear-gradient(135deg, rgba(17,24,47,0.85), rgba(15,23,42,0.9));
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  padding: 22px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.tariff-card::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(0,216,255,0.06), transparent 70%);
  opacity: 0; transition: opacity var(--transition);
}

.tariff-card:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0,216,255,0.15); }
.tariff-card:hover::before { opacity: 1; }

.tariff-card.selected {
  border-color: var(--neon) !important;
  box-shadow: 0 0 0 2px rgba(0,216,255,0.25), 0 12px 40px rgba(0,216,255,0.2) !important;
}

.tariff-card.featured {
  border-color: rgba(0,216,255,0.25);
}

.tariff-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 14px;
}

.tariff-name { font-size: 15px; font-weight: 700; color: var(--text); }
.tariff-days { font-size: 13px; font-weight: 600; color: var(--text-muted); margin-top: 2px; }

.tariff-price {
  font-size: 30px; font-weight: 900; color: var(--neon);
  line-height: 1;
}

.tariff-price span { font-size: 14px; color: var(--text-muted); font-weight: 500; }

.tariff-savings {
  font-size: 11px; font-weight: 600; color: var(--success);
  margin: 8px 0 14px;
}

.tariff-footer {
  display: flex; align-items: center; gap: 8px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.07);
  font-size: 12px; font-weight: 500; color: var(--neon);
}

/* ── Payment Methods ───────────────────────────────────── */
.pay-method {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: 1.5px solid rgba(255,255,255,0.07);
  background: rgba(255,255,255,0.02);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 14px; font-weight: 500;
}

.pay-method:hover { border-color: rgba(0,216,255,0.25); background: rgba(0,216,255,0.04); }

.pay-method.selected {
  border-color: var(--neon);
  background: linear-gradient(135deg, rgba(17,24,47,0.85), rgba(15,23,42,0.9));
  box-shadow: 0 0 0 2px rgba(0,216,255,0.2), 0 8px 24px rgba(0,216,255,0.15);
}

.pay-method input[type="radio"] { display: none; }

/* ── FAQ Accordion ─────────────────────────────────────── */
.faq-item {
  border-bottom: 1px solid var(--border-dim);
}

.faq-question {
  width: 100%; text-align: left;
  padding: 18px 0;
  display: flex; align-items: center; justify-content: space-between;
  background: none; border: none;
  color: var(--text); font-size: 15px; font-weight: 600;
  cursor: pointer;
  gap: 16px;
  transition: color var(--transition);
}

.faq-question:hover { color: var(--neon); }

.faq-icon {
  width: 24px; height: 24px; flex-shrink: 0;
  border-radius: 50%;
  background: rgba(0,216,255,0.08);
  border: 1px solid rgba(0,216,255,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: var(--neon);
  transition: transform var(--transition);
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4,0,0.2,1), padding var(--transition);
  font-size: 14px; color: var(--text-muted); line-height: 1.7;
  padding-bottom: 0;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding-bottom: 16px;
}

/* ── Download Buttons ──────────────────────────────────── */
.dl-btn {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all var(--transition);
  font-size: 13px;
}

.dl-btn:hover {
  background: rgba(0,216,255,0.06);
  border-color: var(--border);
  transform: translateY(-2px);
}

.dl-btn-icon { font-size: 24px; flex-shrink: 0; }
.dl-btn-sub  { font-size: 10px; color: var(--text-muted); }
.dl-btn-name { font-weight: 700; font-size: 14px; }

/* ── Trust Items ───────────────────────────────────────── */
.trust-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
}

.trust-item {
  text-align: center; padding: 12px 8px;
  border-radius: 14px;
  background: rgba(0,216,255,0.05);
  border: 1px solid rgba(0,216,255,0.12);
  font-size: 11px; font-weight: 500; color: var(--neon);
  line-height: 1.4;
}

/* ── Avatar ────────────────────────────────────────────── */
.avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon));
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 15px; color: #060813;
  border: 2px solid rgba(0,216,255,0.3);
  flex-shrink: 0;
}

.avatar img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }

/* ── User Header Strip ─────────────────────────────────── */
.user-strip {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  border-radius: 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-dim);
  margin-bottom: 24px;
}

/* ── Progress Bar ──────────────────────────────────────── */
.progress-bar {
  height: 6px; border-radius: 99px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}

.progress-fill {
  height: 100%; border-radius: 99px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon));
  transition: width 0.6s ease;
}

/* ── Tables ────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); }

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

thead th {
  padding: 12px 16px;
  text-align: left;
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border-dim);
  white-space: nowrap;
}

tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  vertical-align: middle;
}

tbody tr:hover td { background: rgba(255,255,255,0.025); }
tbody tr:last-child td { border-bottom: none; }

/* ── Dashboard Sidebar ─────────────────────────────────── */
.dashboard-layout {
  display: flex; min-height: 100vh; padding-top: 68px;
}

.sidebar {
  width: 240px; flex-shrink: 0;
  background: rgba(8,11,22,0.98);
  border-right: 1px solid var(--border-dim);
  padding: 24px 16px;
  position: fixed; top: 68px; bottom: 0; left: 0; z-index: 50;
  overflow-y: auto;
  transition: transform var(--transition);
}

.sidebar-link {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px; border-radius: var(--radius);
  font-size: 14px; font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
  cursor: pointer; border: none; background: none; width: 100%;
  text-align: left;
}

.sidebar-link:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.sidebar-link.active { color: var(--neon); background: rgba(0,216,255,0.08); }
.sidebar-link svg { flex-shrink: 0; }

.sidebar-section-label {
  font-size: 9px; font-weight: 800;
  text-transform: uppercase; letter-spacing: 1px;
  color: var(--text-dim); padding: 16px 14px 6px;
}

.main-content {
  flex: 1; margin-left: 240px;
  padding: 32px 32px;
  max-width: calc(100% - 240px);
}

/* ── KPI Cards ─────────────────────────────────────────── */
.kpi-card {
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border-dim);
}

.kpi-label { font-size: 11px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.7px; margin-bottom: 8px; }
.kpi-value { font-size: 32px; font-weight: 900; line-height: 1; }
.kpi-delta { font-size: 12px; font-weight: 500; margin-top: 6px; }
.kpi-delta.up   { color: var(--success); }
.kpi-delta.down { color: var(--danger); }

/* ── VPN Key Field ─────────────────────────────────────── */
.vpn-key-wrap {
  display: flex; gap: 10px; align-items: stretch;
}

.vpn-key-field {
  flex: 1;
  padding: 14px 16px;
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 16px;
  font-family: 'Courier New', monospace;
  font-size: 12px; color: var(--text-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  cursor: default; user-select: all;
  display: flex; align-items: center;
}

/* ── Notification Toast ────────────────────────────────── */
.toast-container {
  position: fixed; bottom: 24px; right: 24px; z-index: 9999;
  display: flex; flex-direction: column; gap: 10px;
}

.toast {
  padding: 14px 18px; border-radius: 14px;
  background: rgba(17,24,47,0.95);
  border: 1px solid var(--border);
  backdrop-filter: blur(20px);
  font-size: 14px; font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  animation: slideIn 0.3s ease;
  display: flex; align-items: center; gap: 10px;
  min-width: 240px; max-width: 360px;
}

.toast.success { border-color: rgba(16,185,129,0.4); }
.toast.error   { border-color: rgba(239,68,68,0.4); }

/* ── Scrollbar ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,216,255,0.3); }

/* ── Step Numbers ──────────────────────────────────────── */
.step-num {
  width: 24px; height: 24px; border-radius: 8px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 800;
  background: rgba(0,216,255,0.12);
  border: 1px solid rgba(0,216,255,0.25);
  color: var(--neon);
}

/* ── QR Code placeholder ───────────────────────────────── */
.qr-wrap {
  width: 140px; height: 140px;
  border-radius: 16px;
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto;
  padding: 8px;
}

/* ── Select ────────────────────────────────────────────── */
.select {
  width: 100%; padding: 12px 16px;
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius);
  color: var(--text); font-size: 14px; font-family: inherit;
  outline: none; cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239CA3AF' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.select:focus { border-color: rgba(0,216,255,0.5); }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .main-content { margin-left: 0; max-width: 100%; padding: 24px 20px; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .navbar-nav { display: none; }
  .burger { display: flex; }
  .trust-grid { grid-template-columns: 1fr; }
  .navbar-actions .btn { display: none; }
  .lang-switch { display: flex; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .glass-card { padding: 18px; }
  .section-title { font-size: 26px; }
  .tariff-price { font-size: 26px; }
  .grid-4 { grid-template-columns: 1fr; }
  .kpi-value { font-size: 26px; }
}