/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --accent: #00d4ff;
  --accent2: #7b2fff;
  --accent3: #ff4f81;
  --dark: #0a0d1a;
  --dark2: #0f1428;
  --dark3: #141933;
  --light-bg: #f4f7ff;
  --card-bg: #161c35;
  --text-main: #e8eaf6;
  --text-muted: #8892b0;
  --white: #ffffff;
  --green: #00e676;
  --red: #ff5252;
  --radius: 14px;
  --shadow: 0 8px 32px rgba(0,212,255,0.10);
  --transition: 0.35s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', 'Inter', Arial, sans-serif;
  background: var(--dark);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent3); }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === HEADER === */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 13, 26, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(0,212,255,0.13);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  user-select: none;
}

.main-nav {
  display: flex;
  gap: 8px;
}

.main-nav a {
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.93rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.main-nav a:hover {
  background: rgba(0,212,255,0.13);
  color: var(--accent);
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.burger span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--accent);
  border-radius: 3px;
  transition: all var(--transition);
}

.burger.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* === HERO === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 68px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 60% 40%, rgba(123,47,255,0.22) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 20% 70%, rgba(0,212,255,0.18) 0%, transparent 65%),
    linear-gradient(160deg, #0a0d1a 60%, #0f1428 100%);
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(0,212,255,0.07) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: gridPulse 6s ease-in-out infinite alternate;
}

@keyframes gridPulse {
  from { opacity: 0.4; }
  to { opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: 60px 0;
  animation: fadeUp 0.9s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-content h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(120deg, #fff 30%, var(--accent) 70%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 560px;
}

.btn-main {
  display: inline-block;
  padding: 14px 38px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  color: #fff;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 24px rgba(0,212,255,0.25);
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn-main:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 8px 36px rgba(0,212,255,0.38);
  color: #fff;
}

/* === SECTIONS === */
.section { padding: 90px 0; }

.section-light {
  background: var(--light-bg);
  color: #1a1f3a;
}

.section-light .section-sub,
.section-light p { color: #3a4060; }

.section-light h2 { color: #1a1f3a; }
.section-light h3 { color: #1a1f3a; }

.section-dark {
  background: var(--dark2);
}

.section-sub {
  max-width: 700px;
  margin: 0 auto 48px;
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 18px;
  position: relative;
}

h2::after {
  content: '';
  display: block;
  width: 56px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  margin: 12px auto 0;
}

h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }

/* === ABOUT === */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-top: 48px;
}

.about-text p { margin-bottom: 18px; }

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.info-card {
  background: #fff;
  border: 1px solid rgba(123,47,255,0.12);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 36px rgba(123,47,255,0.13);
}

.card-icon { font-size: 1.8rem; margin-bottom: 10px; }
.info-card h3 { color: #1a1f3a; }
.info-card p { color: #3a4060; font-size: 0.95rem; }

/* === FEATURES === */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.feature-item {
  background: var(--card-bg);
  border: 1px solid rgba(0,212,255,0.10);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform var(--transition), border-color var(--transition);
}

.feature-item:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.feat-num {
  display: inline-block;
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 14px;
}

.feature-item h3 { color: var(--white); margin-bottom: 10px; }
.feature-item p  { color: var(--text-muted); font-size: 0.94rem; }

/* === STEPS === */
.steps-wrap {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 48px;
}

.step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid rgba(123,47,255,0.10);
  border-radius: var(--radius);
  padding: 26px 28px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.05);
  transition: box-shadow var(--transition), transform var(--transition);
}

.step:hover {
  transform: translateX(6px);
  box-shadow: 0 8px 30px rgba(123,47,255,0.12);
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
}

.step-body h3 { color: #1a1f3a; margin-bottom: 8px; }
.step-body p  { color: #3a4060; font-size: 0.95rem; }

/* === MIRRORS === */
.mirrors-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 48px;
}

.mirror-text p { margin-bottom: 16px; }

.mirror-tips {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tip-card {
  display: flex;
  gap: 14px;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid rgba(0,212,255,0.10);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 0.94rem;
  color: var(--text-main);
  transition: border-color var(--transition);
}

.tip-card:hover { border-color: var(--accent); }
.tip-icon { font-size: 1.25rem; flex-shrink: 0; }

/* === SECURITY === */
.security-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.sec-block {
  background: #fff;
  border: 1px solid rgba(123,47,255,0.10);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.05);
}

.sec-block h3 { color: #1a1f3a; margin-bottom: 14px; }
.sec-block p  { color: #3a4060; font-size: 0.94rem; margin-bottom: 12px; }

.sec-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.sec-list li { display: flex; gap: 10px; align-items: flex-start; color: #3a4060; font-size: 0.93rem; }
.check { flex-shrink: 0; font-size: 1.1rem; }

code {
  background: rgba(123,47,255,0.10);
  border-radius: 4px;
  padding: 1px 6px;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
  color: var(--accent2);
}

/* === LINK TABLE === */
.link-table-wrap {
  margin-top: 40px;
  overflow-x: auto;
  border-radius: var(--radius);
}

.link-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
}

.link-table thead tr { background: linear-gradient(90deg, var(--accent2), var(--accent)); }
.link-table th {
  padding: 14px 18px;
  text-align: left;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  color: #fff;
}

.link-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: 0.93rem;
  color: var(--text-muted);
}

.link-table tbody tr:last-child td { border-bottom: none; }
.link-table tbody tr:hover td { background: rgba(0,212,255,0.05); color: var(--text-main); }

.td-green { color: var(--green) !important; font-weight: 700; }
.td-red   { color: var(--red) !important; font-weight: 700; }

.link-warning {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin-top: 28px;
  background: rgba(255,79,129,0.10);
  border: 1px solid rgba(255,79,129,0.25);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.warn-icon { font-size: 1.5rem; flex-shrink: 0; }
.link-warning p { font-size: 0.95rem; color: var(--text-main); }

/* === FAQ === */
.faq-list {
  max-width: 820px;
  margin: 48px auto 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: #fff;
  border: 1px solid rgba(123,47,255,0.12);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  transition: box-shadow var(--transition);
}

.faq-item.open {
  border-color: var(--accent2);
  box-shadow: 0 6px 28px rgba(123,47,255,0.13);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: #1a1f3a;
  text-align: left;
  transition: background var(--transition);
}

.faq-question:hover { background: rgba(123,47,255,0.05); }

.faq-arrow {
  flex-shrink: 0;
  font-size: 0.85rem;
  color: var(--accent2);
  transition: transform var(--transition);
}

.faq-item.open .faq-arrow { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(.4,0,.2,1), padding 0.3s;
  padding: 0 24px;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px;
}

.faq-answer p { color: #3a4060; font-size: 0.95rem; }
.faq-answer code { color: var(--accent2); }

/* === FOOTER === */
.site-footer {
  background: #07091a;
  border-top: 1px solid rgba(0,212,255,0.10);
  padding: 60px 0 36px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 2fr;
  gap: 48px;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 14px;
}

.footer-desc { color: var(--text-muted); font-size: 0.92rem; }

.footer-nav h3,
.footer-info h3 {
  color: var(--white);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-nav ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-nav ul li a { color: var(--text-muted); font-size: 0.92rem; }
.footer-nav ul li a:hover { color: var(--accent); }

.footer-info p { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 12px; }
.footer-copy { margin-top: 20px; color: rgba(136,146,176,0.55) !important; font-size: 0.83rem !important; }

/* === SCROLL ANIMATION === */
.animate-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .security-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner  { grid-template-columns: 1fr 1fr; }
  .footer-brand  { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .burger { display: flex; }

  .main-nav {
    display: none;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(10,13,26,0.98);
    backdrop-filter: blur(18px);
    flex-direction: column;
    padding: 20px 24px 28px;
    gap: 4px;
    border-bottom: 1px solid rgba(0,212,255,0.13);
  }

  .main-nav.open { display: flex; }

  .main-nav a {
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: 8px;
  }

  .about-grid    { grid-template-columns: 1fr; gap: 32px; }
  .features-grid { grid-template-columns: 1fr; }
  .mirrors-content { grid-template-columns: 1fr; gap: 28px; }
  .security-grid { grid-template-columns: 1fr; }
  .footer-inner  { grid-template-columns: 1fr; gap: 32px; }

  .step { flex-direction: column; gap: 16px; }

  .hero-content { padding: 40px 0; }

  .section { padding: 60px 0; }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.7rem; }
  .btn-main { padding: 12px 28px; font-size: 0.95rem; }
  h2 { font-size: 1.4rem; }

  .faq-question { font-size: 0.92rem; padding: 16px 18px; }
  .faq-answer { padding: 0 18px; }
  .faq-item.open .faq-answer { padding: 0 18px 16px; }
}