/* ═══════════════════════════════════════════════════════════════
   SMART DELIVERY VPN — 4 MODE STYLESHEET
   Modes: beginner | intermediate | advanced | directorscut
   ═══════════════════════════════════════════════════════════════ */

/* ─── CSS VARIABLES PER MODE ─── */
:root {
  /* Default / Directors Cut (оригинал) */
  --bg-primary: #000000;
  --bg-card: rgba(0, 0, 0, 0.65);
  --bg-overlay: rgba(0, 0, 0, 0.85);
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #888888;
  --accent: #00FF00;
  --accent-glow: rgba(0, 255, 0, 0.3);
  --accent-dark: #00cc00;
  --border: rgba(0, 255, 0, 0.35);
  --btn-bg: linear-gradient(135deg, #00aa00, #00ff00);
  --btn-text: #000000;
  --danger: #00ff00;
  --danger-glow: rgba(255, 204, 0, 0.3);
  --font-main: 'Segoe UI', 'Roboto', sans-serif;
  --radius: 28px;
  --shadow: 0 0 40px rgba(0, 255, 0, 0.15);
  --heading-font: 'Segoe UI', sans-serif;
  --gradient-overlay: linear-gradient(135deg, rgba(0,50,0,0.3), rgba(0,20,0,0.5));
}

/* BEGINNER MODE — теплый, дружелюбный, простой */
body.mode-beginner {
  --bg-primary: #000000;
  --bg-card: rgba(55, 55, 55, 0.35);
  --bg-card-border: rgba(55, 55, 55, 0.55);
  --bg-card-blur: blur(12px);
  --bg-overlay: rgba(41, 41, 48, 0.65);
  --text-primary: #00ff00;
  --text-secondary: #00cc00;
  --text-muted: #00ff00;
  --accent: #00ff00;           /* ← ЗДЕСЬ: было #3182ce, стало #00ff00 */
  --accent-glow: rgba(0, 255, 0, 0.3);  /* ← и тут подправьте под новый цвет */
  --accent-dark: #00cc00;      /* ← можно затемнённый вариант зелёного */
  --border: rgba(0, 255, 0, 0.3);       /* ← и тут */
  --btn-bg: linear-gradient(135deg, #00aa00, #00ff00);  /* ← градиент кнопок */
  --btn-text: #000000 !important;         /* ← чёрный текст на ярко-зелёной кнопке лучше читается */
  --danger: #00ff00;
  --danger-glow: rgba(255, 204, 0, 0.3);
  --font-main: 'Segoe UI', 'Roboto', 'Arial', sans-serif;
  --radius: 28px;
  --shadow: 0 8px 32px rgba(0, 255, 0, 0.15);  /* ← и тень */
  --heading-font: 'Segoe UI', sans-serif;
  --gradient-overlay: linear-gradient(135deg, rgba(0,255,0,0.1), rgba(0,255,0,0.05));
}

/* INTERMEDIATE MODE — профессиональный, сбалансированный */
body.mode-intermediate {
  --bg-primary: #0f1923;
  --bg-card: rgba(15, 25, 35, 0.25);
  --bg-overlay: rgba(10, 18, 26, 0.95);
  --text-primary: #e2e8f0;
  --text-secondary: #a0aec0;
  --text-muted: #64748b;
  --accent: #48bb78;
  --accent-glow: rgba(72, 187, 120, 0.25);
  --accent-dark: #38a169;
  --border: rgba(72, 187, 120, 0.35);
  --btn-bg: linear-gradient(135deg, #38a169, #48bb78);
  --btn-text: #000000;
  --danger: #ecc94b;
  --danger-glow: rgba(236, 201, 75, 0.25);
  --font-main: 'Segoe UI', 'Roboto', sans-serif;
  --radius: 24px;
  --shadow: 0 0 30px rgba(72, 187, 120, 0.12);
  --heading-font: 'Segoe UI', sans-serif;
  --gradient-overlay: linear-gradient(135deg, rgba(15,40,30,0.4), rgba(10,30,20,0.6));
}

/* ADVANCED MODE — хакерский терминал */
body.mode-advanced {
  --bg-primary: #050a05;
  --bg-card: rgba(5, 10, 5, 0.3);
  --bg-overlay: rgba(3, 8, 3, 0.97);
  --text-primary: #00ff41;
  --text-secondary: #00cc33;
  --text-muted: #336633;
  --accent: #00ff41;
  --accent-glow: rgba(0, 255, 65, 0.4);
  --accent-dark: #00cc33;
  --border: rgba(0, 255, 65, 0.4);
  --btn-bg: #00ff41;
  --btn-text: #000000;
  --danger: #ff6600;
  --danger-glow: rgba(255, 102, 0, 0.3);
  --font-main: 'Consolas', 'Monaco', 'Courier New', monospace;
  --radius: 4px;
  --shadow: 0 0 20px rgba(0, 255, 65, 0.2);
  --heading-font: 'Consolas', 'Monaco', monospace;
  --gradient-overlay: linear-gradient(135deg, rgba(0,20,0,0.5), rgba(0,10,0,0.7));
}

/* DIRECTORS CUT — оригинальный стиль */
body.mode-directorscut {
  --bg-primary: #000000;
  --bg-card: rgba(0, 0, 0, 0.65);
  --bg-overlay: rgba(0, 0, 0, 0.85);
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #888888;
  --accent: #00FF00;
  --accent-glow: rgba(0, 255, 0, 0.3);
  --accent-dark: #00cc00;
  --border: rgba(0, 255, 0, 0.35);
  --btn-bg: linear-gradient(135deg, #00aa00, #00ff00);
  --btn-text: #000000;
  --danger: #ffcc00;
  --danger-glow: rgba(255, 204, 0, 0.3);
  --font-main: 'Segoe UI', 'Roboto', sans-serif;
  --radius: 28px;
  --shadow: 0 0 40px rgba(0, 255, 0, 0.15);
  --heading-font: 'Segoe UI', sans-serif;
  --gradient-overlay: linear-gradient(135deg, rgba(0,50,0,0.3), rgba(0,20,0,0.5));
}

/* ─── BASE STYLES ─── */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background 0.5s ease, color 0.3s ease;
  -webkit-text-size-adjust: 100%;
}

/* ═══ ФОНЫ ДЛЯ РЕЖИМОВ ═══ */
body.mode-beginner {
  background: #000000 url('Beginner.jpg') no-repeat center center fixed;
  background-size: cover;
}
body.mode-intermediate {
  background: #000000 url('Standart.jpg') no-repeat center center fixed;
  background-size: cover;
}
body.mode-advanced {
  background: #000000 url('expert.jpg') no-repeat center center fixed;
  background-size: cover;
}
body.mode-directorscut {
  background: #000000 url('background.jpg') no-repeat center center fixed;
  background-size: cover;
}

/* ─── ANIMATIONS ─── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes borderPulse {
  0%, 100% { border-color: var(--accent); box-shadow: 0 0 5px var(--accent-glow); }
  50% { border-color: var(--danger); box-shadow: 0 0 20px var(--danger-glow); }
}

@keyframes rotation {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 10px var(--accent-glow); }
  50% { box-shadow: 0 0 25px var(--accent-glow), 0 0 50px var(--accent-glow); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink {
  50% { border-color: transparent; }
}

/* ─── NAVIGATION ─── */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: var(--bg-overlay);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  transition: all 0.3s ease;
  min-height: 52px;
}

body.mode-beginner nav {
  background: rgba(0,10,0,0.75);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

body.mode-advanced nav {
  font-family: var(--font-main);
  border-bottom: 1px solid var(--accent);
  background: rgba(0,10,0,0.95);
}

.logo {
  text-decoration: none;
  transition: all 0.3s;
  flex-shrink: 0;
  line-height: 0;
  margin-right: auto;
}

.logo img {
  height: 36px;
  width: auto;
  display: block;
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-links a {
  position: relative;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.75rem;
  transition: all 0.3s;
  padding: 6px 10px;
  border-radius: 20px;
  font-weight: bold;
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: none;
  text-shadow: none;
  white-space: nowrap;
}

.nav-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  box-shadow: 0 0 15px var(--accent-glow);
}

body.mode-beginner .nav-links a {
  box-shadow: 0 2px 8px rgba(49,130,206,0.2);
  border-radius: 12px;
}

body.mode-advanced .nav-links a {
  border-radius: 2px;
  box-shadow: 0 0 10px var(--accent-glow);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.7rem;
}

.nav-links a:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 15px var(--accent);
  filter: brightness(1.1);
}

.mode-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 5px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.75rem;
  transition: all 0.3s;
  white-space: nowrap;
  flex-shrink: 0;
}

.mode-switcher:hover {
  border-color: var(--accent);
  color: var(--accent);
}

body.mode-advanced .mode-switcher {
  border-radius: 2px;
  font-family: var(--font-main);
  font-size: 0.7rem;
}

/* ─── MODE BADGE ─── */
.mode-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: bold;
  background: var(--accent);
  color: var(--btn-text);
  margin-left: 10px;
  animation: glowPulse 2s infinite;
}

body.mode-beginner .mode-badge { border-radius: 8px; glowPulse 1.5s infinite; }
body.mode-intermediate .mode-badge { animation: glowPulse 1.5s infinite; }
body.mode-advanced .mode-badge { border-radius: 2px; animation: glowPulse 1.5s infinite; }

/* ─── MAIN CONTAINER ─── */
/* ─── MAIN CONTAINER ─── */
.main-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.store-card {
  max-width: 750px;
  width: 100%;
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  animation: fadeIn 0.6s ease-out;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  margin: 0 auto;
}

/* Стеклянная карточка только в Beginner */
body.mode-beginner .store-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

body.mode-advanced .store-card {
   background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.store-card h1 {
  font-size: 1.8rem;
  color: var(--accent);
  text-shadow: 0 0 15px var(--accent-glow);
  margin-bottom: 8px;
  font-family: var(--heading-font);
}

body.mode-beginner .store-card h1 {
  text-shadow: none;
  font-size: 2rem;
}

body.mode-advanced .store-card h1 {
  text-transform: uppercase;
  letter-spacing: 3px;
}

.badge {
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 50px;
  padding: 4px 12px;
  font-size: 0.7rem;
  color: var(--accent);
}

.subtitle {
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 32px;
  border-bottom: 1px dashed var(--border);
  padding-bottom: 16px;
}

body.mode-beginner .subtitle {
  color: var(--text-secondary);
  border-bottom: 1px dashed var(--border);
}

/* ─── TRIAL BLOCK ─── */
.trial-block {
  background: var(--gradient-overlay);
  border: 2px solid var(--danger);
  border-radius: 20px;
  padding: 20px;
  margin-bottom: 28px;
  animation: borderPulse 2s infinite;
  position: relative;
  overflow: hidden;
}

body.mode-beginner .trial-block {
  animation: borderPulse 3s infinite;
  border: 2px solid var(--danger);
  background: linear-gradient(135deg, rgba(237,137,54,0.08), rgba(236,201,75,0.05));
}

body.mode-advanced .trial-block {
  animation: borderPulse 3s infinite;
  border: 1px solid var(--danger);
}

.trial-badge {
  display: inline-block;
  background: var(--danger);
  color: var(--bg-primary);
  font-weight: bold;
  font-size: 0.7rem;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.trial-block h3 {
  color: var(--danger);
  margin-bottom: 12px;
  font-size: 1.3rem;
}

.trial-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 10px 20px;
  margin: 10px 0;
  font-size: 0.9rem;
  font-weight: bold;
  color: var(--text-secondary);            /* ← зелёный текст */
  cursor: pointer;
  transition: all 0.3s;
  display: inline-block;
}

.trial-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  box-shadow: 0 0 15px var(--accent-glow);
  transform: scale(1.02);
}

body.mode-advanced .trial-btn {
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.trial-note {
  font-size: 0.7rem;
  color: var(--accent);
  margin-top: 10px;
}

body.mode-beginner .trial-note {
  color: var(--text-muted);
}

/* ─── TARIFF CARDS ─── */
.tariff-card {
  background: var(--bg-card);
  border-radius: 20px;
  padding: 24px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

.tariff-selector {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
}

.tariff-option {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tariff-option:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.tariff-option.selected {
  border-color: var(--accent);
  background: var(--accent-glow);
  box-shadow: 0 0 20px var(--accent-glow);
}

body.mode-beginner .tariff-option.selected {
  box-shadow: 0 0 0 2px var(--accent);
}

body.mode-advanced .tariff-option {
  border-radius: 4px;
}

.tariff-option .name {
  font-weight: bold;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.tariff-option .price {
  color: var(--accent);
  font-weight: bold;
  font-size: 1.2rem;
}

.tariff-option .desc {
  font-size: 0.8rem;
  color: var(--accent);
}

body.mode-beginner .tariff-option .desc {
  color: var(--text-muted);
}

.price-rub {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent-glow);
  margin: 16px 0;
}

body.mode-beginner .price-rub {
  text-shadow: none;
}

.price-rub small {
  font-size: 1rem;
  font-weight: normal;
}

.features {
  list-style: none;
  margin: 20px 0;
}

.features li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-bottom: 1px dashed rgba(255,255,255,0.05);
  color: var(--text-secondary);
}

.features li::before {
  content: "✓";
  color: var(--accent);
  font-weight: bold;
  font-size: 1.1rem;
}

/* ─── PAYMENT METHODS ─── */
.payment-methods {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 20px;
}

.payment-method-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 12px 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);             /* ← зелёный текст */
  cursor: pointer;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: bold;
}

.payment-method-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  box-shadow: 0 0 15px var(--accent-glow);
}

body.mode-advanced .payment-method-btn {
  border-radius: 2px;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 1px;
}

/* ─── BUTTONS ─── */
.pay-button, .btn {
  display: block;
  width: 100%;
  background: var(--bg-card);               /* ← тёмный фон */
  border: 1px solid var(--border);           /* ← зелёная обводка */
  padding: 16px 24px;
  border-radius: 20px;
  color: var(--text-secondary);             /* ← зелёный текст */
  font-weight: 800;
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s;
  margin: 16px 0;
  text-align: center;
  text-decoration: none;
  box-shadow: none;
}

.pay-button:hover, .btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  box-shadow: 0 0 25px var(--accent-glow);
  transform: scale(1.02);
}

body.mode-beginner .pay-button,
body.mode-beginner .btn {
  border-radius: 16px;
  letter-spacing: 1px;
  box-shadow: 0 4px 15px rgba(49,130,206,0.2);
}

body.mode-advanced .pay-button,
body.mode-advanced .btn {
  border-radius: 2px;
  font-family: var(--font-main);
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* ─── INFO BLOCKS ─── */
.info-block {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 16px;
  margin: 20px 0;
  text-align: left;
  border-left: 3px solid var(--accent);
}

.info-block p {
  margin: 8px 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.info-block strong {
  color: var(--text-primary);
}

/* ─── INSTRUCTION STEPS ─── */
.instruction-block {
  background: var(--bg-card);
  border-radius: 20px;
  padding: 20px;
  margin: 20px 0;
  text-align: left;
  border: 1px solid var(--border);
}

.instruction-block h3 {
  color: var(--accent);
  margin-bottom: 16px;
  font-family: var(--heading-font);
}

.instruction-steps {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
}

.instruction-steps li {
  margin-bottom: 12px;
  padding-left: 28px;
  position: relative;
  font-size: 0.85rem;
  line-height: 1.4;
  counter-increment: step;
  color: var(--text-secondary);
}

.instruction-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  background: var(--accent);
  color: var(--btn-text);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: bold;
}

body.mode-advanced .instruction-steps li::before {
  border-radius: 2px;
  font-family: var(--font-main);
}

/* ─── SCREENSHOT STYLES ─── */
.screenshot {
  max-width: 280px;
  width: 100%;
  border-radius: 12px;
  margin: 12px auto;
  display: block;
  border: 2px solid var(--border);
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

body.mode-beginner .screenshot {
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

body.mode-advanced .screenshot {
  border-radius: 2px;
  border: 1px solid var(--accent);
  filter: hue-rotate(20deg) saturate(1.2);
}

.screenshot-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 16px 0;
}

.screenshot-caption {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 4px;
}

/* ─── CRYPTO BUTTONS ─── */
.crypto-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 20px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.crypto-btn {
  background: var(--bg-overlay);
  border: 1px solid var(--accent);
  border-radius: 40px;
  padding: 8px 20px;
  font-size: 0.8rem;
  color: var(--accent);
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.crypto-btn:hover {
  background: var(--accent);
  color: var(--btn-text);
}

body.mode-advanced .crypto-btn {
  border-radius: 2px;
}

/* ─── MODALS ─── */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.85);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(5px);
}

body.mode-beginner .modal-content h3 {
  color: var(--accent);                      /* ← ярко-зелёный заголовок */
}

body.mode-beginner .modal-content p {
  color: var(--text-secondary);              /* ← зелёный текст */
}

body.mode-beginner .modal-content .close-modal {
  color: var(--text-muted);                  /* ← зелёный приглушённый */
}

body.mode-beginner .modal-content .close-modal:hover {
  color: var(--accent);                      /* ← яркий при наведении */
}

body.mode-beginner .modal-content .username-input {
  background: rgba(0, 0, 0, 0.3);            /* ← тёмное поле ввода */
  border: 1px solid var(--border);           /* ← зелёная обводка */
  color: var(--text-primary);                /* ← зелёный текст */
  border-radius: 12px;
}

body.mode-beginner .modal-content .username-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.modal-content {
  background: var(--bg-overlay);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  max-width: 550px;
  width: 100%;
  text-align: center;
  position: relative;
  animation: fadeIn 0.3s ease;
  box-shadow: var(--shadow);
  max-height: 90vh;
  overflow-y: auto;
}

body.mode-beginner .modal-content {
  background: rgba(55, 55, 55, 0.35);       /* ← как --bg-card */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3); /* ← стеклянная рамка */
  border-radius: 28px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  color: var(--text-primary);                /* ← зелёный текст */
}

body.mode-advanced .modal-content {
  border: 1px solid var(--accent);
  border-radius: 4px;
}

.modal-content h3 {
  color: var(--accent);
  margin-bottom: 16px;
  font-family: var(--heading-font);
}

.close-modal {
  position: absolute;
  top: 12px;
  right: 18px;
  font-size: 28px;
  cursor: pointer;
  color: var(--text-muted);
  transition: color 0.2s;
  z-index: 10;
}

.close-modal:hover {
  color: var(--accent);
}

.username-input {
  width: 100%;
  padding: 12px;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 0;
  color: var(--text-primary);
  font-size: 1rem;
  margin: 16px 0;
  text-align: center;
  font-family: var(--font-main);
}

body.mode-beginner .username-input {
  border-radius: 12px;
  background: #f7fafc;
  border: 2px solid #e2e8f0;
}

body.mode-advanced .username-input {
  border-radius: 2px;
  background: #0a1a0a;
}

.username-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ─── WIDGET CONTAINER ─── */
.widget-container {
  width: 100%;
  overflow-x: auto;
}

.widget-container iframe {
  width: 100%;
  border: none;
  background: transparent;
}

.widget-wrapper {
  position: relative;
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
}

.widget-wrapper img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: calc(100% - 55px);
  object-fit: cover;
  opacity: 1;
  z-index: 10;
  pointer-events: none;
  border-radius: 0;
}

/* ─── LOADER ─── */
.loader {
  width: 48px;
  height: 48px;
  border: 5px solid var(--accent);
  border-bottom-color: transparent;
  border-radius: 50%;
  display: inline-block;
  box-sizing: border-box;
  animation: rotation 1s linear infinite;
  margin: 20px 0;
}

/* ─── STEPS ─── */
.step {
  margin: 12px 0;
  font-size: 1rem;
  opacity: 0.5;
  transition: all 0.3s;
  color: var(--text-secondary);
}

.step.active {
  opacity: 1;
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent-glow);
}

.step.done {
  opacity: 0.7;
  color: var(--text-muted);
  text-decoration: line-through;
}

/* ─── MODE SELECTION MODAL ─── */
.mode-selection-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 12px 0;
}

.mode-option {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
  transition: all 0.3s;
  text-align: left;
  position: relative;
  overflow: hidden;
}

.mode-option:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.mode-option.selected {
  border-color: var(--accent);
  background: var(--accent-glow);
}

body.mode-advanced .mode-option {
  border-radius: 4px;
}

.mode-option-icon {
  font-size: 1.5rem;
  margin-bottom: 2px;
}

.mode-option h4 {
  color: var(--accent);
  margin-bottom: 2px;
  font-size: 0.85rem;
}

.mode-option p {
  color: var(--text-muted);
  font-size: 0.7rem;
  line-height: 1.4;
}

.mode-option .mode-tag {
  position: absolute;
  top: 6px;
  right: 6px;
  padding: 1px 6px;
  border-radius: 50px;
  font-size: 0.55rem;
  font-weight: bold;
  text-transform: uppercase;
}

body.mode-advanced .mode-option .mode-tag {
  border-radius: 2px;
}

/* ─── WHAT IS VPN SECTION (Beginner) ─── */
.vpn-explainer {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin: 20px 0;
  text-align: left;
}

.vpn-explainer h3 {
  color: var(--accent);
  margin-bottom: 12px;
  font-family: var(--heading-font);
}

.vpn-explainer p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 12px;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.app-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px;
  background: var(--bg-overlay);
  border-radius: 12px;
  border: 1px solid var(--border);
}

body.mode-advanced .app-item {
  border-radius: 4px;
}

.app-item .app-icon {
  font-size: 2rem;
}

.app-item .app-name {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
}

.app-item .app-status {
  font-size: 0.65rem;
  color: var(--accent);
  font-weight: bold;
}

/* ─── TECH SPECS (Advanced) ─── */
.tech-specs {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin: 20px 0;
  text-align: left;
  font-family: var(--font-main);
}

body.mode-advanced .tech-specs {
  border-radius: 4px;
}

.tech-specs h3 {
  color: var(--accent);
  margin-bottom: 16px;
  font-family: var(--heading-font);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.tech-item {
  background: var(--bg-overlay);
  padding: 12px;
  border-radius: 8px;
  border-left: 3px solid var(--accent);
}

body.mode-advanced .tech-item {
  border-radius: 2px;
  border-left: 2px solid var(--accent);
}

.tech-item .tech-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.tech-item .tech-value {
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: bold;
  margin-top: 4px;
}

body.mode-advanced .tech-item .tech-value {
  color: var(--accent);
}

/* ─── TELEGRAM SECTION ─── */
.telegram-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin: 20px 0;
}

.telegram-section h3 {
  color: var(--accent);
  margin-bottom: 12px;
}

.telegram-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 12px;
}

.telegram-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 12px;
}

.telegram-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--bg-card);        /* ← тёмный/прозрачный фон */
  color: var(--text-secondary);      /* ← зелёный текст */
  text-decoration: none;
  border-radius: 20px;               /* ← как mode-switcher */
  border: 1px solid var(--border);   /* ← зелёная обводка */
  font-weight: bold;
  font-size: 0.85rem;
  transition: all 0.3s;
  flex: 1;
  max-width: 280px;
}

.telegram-btn:hover {
  border-color: var(--accent);       /* ← яркая зелёная обводка */
  color: var(--accent);              /* ← яркий зелёный текст */
  background: var(--accent-glow);    /* ← лёгкий зелёный фон */
  transform: translateY(-2px);
  box-shadow: 0 0 15px var(--accent-glow);
}

body.mode-advanced .telegram-btn {
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: var(--font-main);
}

/* ─── FOOTER ─── */
footer {
  text-align: center;
  padding: 12px 16px 8px;
  color: var(--text-muted);
  font-size: 0.7rem;
  background: var(--bg-overlay);
  border-top: 1px solid var(--border);
  margin-top: auto;
  line-height: 1.3;
}

footer div {
  margin: 0;
}

footer div + div {
  margin-top: 4px;
}

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

body.mode-beginner footer {
  background: rgba(0, 10, 0, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}

/* ─── UTILITIES ─── */
.hidden { display: none !important; }

body.modal-open .main-container,
body.modal-open nav,
body.modal-open footer {
  display: none !important;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 480px) {
  nav { padding: 8px 10px; min-height: 48px; }
  .logo { font-size: 0.9rem !important; }
  .mode-switcher { font-size: 0.7rem !important; padding: 4px 8px !important; }
  .nav-links { gap: 6px !important; }
  .nav-links a { padding: 5px 8px !important; font-size: 0.7rem !important; }
  .store-card { padding: 24px 16px; }
  .store-card h1 { font-size: 1.4rem; }
  .price-rub { font-size: 2.2rem; }
  .pay-button { padding: 14px 20px; font-size: 1rem; }
  .instruction-steps li { font-size: 0.75rem; }
  .tariff-option { flex-direction: column; text-align: center; gap: 8px; }
  .modal-content { padding: 20px 12px; }
  .nav-links { gap: 8px; }
  .nav-links a { padding: 6px 12px; font-size: 0.75rem; }
  .screenshot { max-width: 200px; }
  .screenshot-row { gap: 8px; }
  .tech-grid { grid-template-columns: 1fr; }
}

/* ─── ADVANCED MODE SPECIFIC ─── */
body.mode-advanced .terminal-header::before {
  content: "$ ";
  color: var(--accent);
}

body.mode-advanced .cursor-blink {
  display: inline-block;
  width: 8px;
  height: 16px;
  background: var(--accent);
  animation: blink 1s step-end infinite;
  vertical-align: middle;
}

body.mode-advanced .code-block {
  background: #0a1a0a;
  border: 1px solid #1a3a1a;
  border-radius: 2px;
  padding: 12px;
  font-family: var(--font-main);
  font-size: 0.8rem;
  color: var(--accent);
  overflow-x: auto;
  margin: 12px 0;
}

body.mode-advanced .network-diagram {
  background: var(--bg-overlay);
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 16px;
  margin: 16px 0;
  text-align: center;
}

/* ─── BEGINNER FRIENDLY HELPERS ─── */
body.mode-beginner .highlight-box {
  background: linear-gradient(135deg, rgba(49,130,206,0.08), rgba(66,153,225,0.05));
  border: 1px solid rgba(49,130,206,0.2);
  border-radius: 16px;
  padding: 16px;
  margin: 12px 0;
}

body.mode-beginner .emoji-big {
  font-size: 3rem;
  display: block;
  margin: 16px 0;
}

body.mode-beginner .simple-card {
  background: var(--bg-card);           /* rgba(55,55,55,0.35) */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--bg-card-border); /* rgba(55,55,55,0.55) */
  border-radius: var(--radius);         /* 28px */
  padding: 24px;
  margin: 16px 0;
  box-shadow: var(--shadow);            /* 0 8px 32px rgba(0,255,0,0.15) */
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 4px;
}
body.mode-advanced ::-webkit-scrollbar-thumb {
  border-radius: 0;
}

/* === BUTTON OVERLAY FIX === */

/* === NEON GLOW ON WIDGET HOVER === */
.widget-wrapper { position: relative; }
.widget-wrapper::before { content: ""; position: absolute; bottom: 143px; left: calc(50% - 7px); transform: translateX(-50%); width: 383px; height: 45px; background: transparent; z-index: 31; pointer-events: none; border-radius: 25px; opacity: 0; transition: all 0.3s ease; box-shadow: 0 0 15px #00ff00, 0 0 30px #00ff00, 0 0 45px #00ff00; }
.widget-wrapper:hover::before { opacity: 1; }

/* === BUY LOGO RESPONSIVE === */
.widget-wrapper img[src*="Buy_logo.png"] { width: 100% !important; height: auto !important; transform: scaleY(1.843968) !important; transform-origin: top center !important; display: block !important; margin-left: 3px !important; margin-right: auto !important; }

/* ─── МОБИЛЬНЫЙ ФИКС МОДАЛОК ─── */
@media screen and (max-width: 768px) {
  .modal {
    padding: 10px;
    align-items: center;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .modal-content {
    max-width: 100%;
    overflow-x: hidden;
    overflow-y: hidden;
    max-height: 100%;
    padding-left: 10px;
    padding-right: 10px;
    margin: auto;
  }

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

  .widget-wrapper {
    max-width: 100%;
    overflow: hidden;
  }

  .widget-wrapper::before {
    display: none;
  }

  .widget-container {
    overflow-x: hidden;
  }

  .widget-container iframe {
    max-width: 100%;
  }
}

  .tooltip {
  display: none;
  position: absolute;
  top: 110%;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.9);
  color: #00ff00;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.7rem;
  white-space: normal;
  max-width: 200px;
  text-align: center;
  z-index: 200;
}

  /* ─── ADVANCED MODE MOBILE FIX ─── */
@media (max-width: 480px) {
  body.mode-advanced .nav-links {
    gap: 4px !important;
  }
  body.mode-advanced .nav-links a {
    padding: 5px 7px !important;
    font-size: 0.65rem !important;
  }
  body.mode-advanced .mode-switcher {
    padding: 4px 7px !important;
    font-size: 0.65rem !important;
  }
}