/* ===== Nord Color Palette ===== */
:root {
  --nord0: #2E3440;
  --nord1: #3B4252;
  --nord2: #434C5E;
  --nord3: #4C566A;
  --nord4: #D8DEE9;
  --nord5: #E5E9F0;
  --nord6: #ECEFF4;
  --nord7: #8FBCBB;
  --nord8: #88C0D0;
  --nord9: #81A1C1;
  --nord10: #5E81AC;
  --nord11: #BF616A;
  --nord12: #D08770;
  --nord13: #EBCB8B;
  --nord14: #A3BE8C;
  --nord15: #B48EAD;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

/* ===== Base ===== */
body {
  background-color: var(--nord0);
  color: var(--nord4);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--nord8); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--nord6); }
img { max-width: 100%; height: auto; }

/* ===== Layout ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }

/* ===== Navigation ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(46, 52, 64, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}
.nav.scrolled { border-bottom-color: var(--nord2); }

.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  height: 64px; display: flex; align-items: center; justify-content: space-between;
}

.nav-logo { text-decoration: none; }
.nav-logo-text {
  font-size: 1.4rem; font-weight: 700; color: var(--nord6);
  letter-spacing: -0.03em; font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
  color: var(--nord4); font-size: 0.9rem; font-weight: 500;
  padding: 6px 12px; border-radius: 6px; transition: background 0.2s, color 0.2s;
}
.nav-link:hover { background: var(--nord1); color: var(--nord6); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: 8px;
  font-size: 0.9rem; font-weight: 600; text-decoration: none;
  transition: all 0.2s; cursor: pointer; border: none; white-space: nowrap;
}

.btn-star {
  background: var(--nord13);
  color: var(--nord0);
  box-shadow: 0 0 20px rgba(235, 203, 139, 0.25);
}
.btn-star:hover {
  background: #f5dc8a;
  color: var(--nord0);
  box-shadow: 0 0 32px rgba(235, 203, 139, 0.45);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent; color: var(--nord8); border: 1.5px solid var(--nord8);
}
.btn-outline:hover {
  background: rgba(136, 192, 208, 0.1); color: var(--nord6); border-color: var(--nord6);
}

.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

.nav-star { padding: 7px 14px; font-size: 0.85rem; }

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding-top: 64px; position: relative; overflow: hidden;
}

.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse at 15% 55%, rgba(94, 129, 172, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 20%, rgba(136, 192, 208, 0.1) 0%, transparent 50%);
}

.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, var(--nord2) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.25;
  pointer-events: none;
}

.hero > .container {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
  position: relative; z-index: 1;
  padding-top: 48px; padding-bottom: 80px;
}

.hero-content { max-width: 560px; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--nord1); border: 1px solid var(--nord3); border-radius: 100px;
  padding: 5px 16px; font-size: 0.78rem; color: var(--nord4);
  margin-bottom: 24px; font-family: 'JetBrains Mono', monospace;
}

.badge-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--nord14); box-shadow: 0 0 8px var(--nord14);
  animation: pulse 2s ease-in-out infinite; flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--nord14); }
  50% { opacity: 0.6; box-shadow: 0 0 3px var(--nord14); }
}

.hero-title {
  font-size: clamp(2.8rem, 5.5vw, 4.2rem);
  font-weight: 800; line-height: 1.08;
  letter-spacing: -0.03em; color: var(--nord6);
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--nord8) 0%, var(--nord9) 60%, var(--nord10) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.05rem; color: var(--nord4); line-height: 1.75;
  margin-bottom: 32px; max-width: 480px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }

.install-cmd {
  display: flex; align-items: stretch; gap: 0;
  background: var(--nord1); border: 1px solid var(--nord3); border-radius: 10px;
  overflow: hidden; max-width: 460px; margin-bottom: 16px;
}

.install-cmd code {
  flex: 1; padding: 12px 16px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.88rem; color: var(--nord14); background: none;
}

.copy-btn {
  background: var(--nord2); border: none; border-left: 1px solid var(--nord3);
  color: var(--nord4); cursor: pointer; padding: 12px 14px;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, color 0.2s; flex-shrink: 0;
}
.copy-btn:hover { background: var(--nord3); color: var(--nord6); }
.copy-btn.copied { background: var(--nord14); color: var(--nord0); }

.copy-btn.small {
  padding: 8px 12px; font-size: 0.75rem; font-family: inherit;
  border-radius: 0 6px 6px 0; border-left: 1px solid var(--nord3);
}

.hero-trusted { font-size: 0.85rem; color: var(--nord3); }
.hero-trusted strong { color: var(--nord13); }

.hero-screenshot { position: relative; }
.screenshot-img {
  border-radius: 12px; border: 1px solid var(--nord3); width: 100%;
  box-shadow: 0 0 0 1px rgba(76, 86, 106, 0.4), 0 24px 64px rgba(0, 0, 0, 0.55);
}

/* ===== Section Headers ===== */
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700;
  color: var(--nord6); letter-spacing: -0.02em; margin-bottom: 12px;
}
.section-header p { font-size: 1rem; color: var(--nord3); max-width: 480px; margin: 0 auto; }

/* ===== Features ===== */
.features { background: var(--nord1); }
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 20px;
}

.feature-card {
  background: var(--nord0); border: 1px solid var(--nord2); border-radius: 12px;
  padding: 28px; position: relative; transition: border-color 0.25s, transform 0.25s;
}
.feature-card:hover { border-color: var(--nord8); transform: translateY(-3px); }
.feature-card--highlight {
  border-color: var(--nord10);
  background: linear-gradient(145deg, rgba(94, 129, 172, 0.12) 0%, var(--nord0) 60%);
}
.feature-card--highlight:hover { border-color: var(--nord9); }

.feature-icon { font-size: 2rem; margin-bottom: 14px; display: block; }
.feature-card h3 { font-size: 1.05rem; font-weight: 600; color: var(--nord6); margin-bottom: 8px; }
.feature-card p { font-size: 0.88rem; color: var(--nord4); line-height: 1.65; }

.feature-badge {
  position: absolute; top: 14px; right: 14px;
  background: var(--nord10); color: var(--nord6);
  font-size: 0.68rem; font-weight: 700; padding: 3px 8px;
  border-radius: 100px; text-transform: uppercase; letter-spacing: 0.06em;
}

/* ===== CTF Section ===== */
.ctf-section {
  background: var(--nord0); position: relative; overflow: hidden;
}
.ctf-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 75% 50%, rgba(94, 129, 172, 0.13) 0%, transparent 60%);
  pointer-events: none;
}

.ctf-content {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
  align-items: center; position: relative; z-index: 1;
}

.section-badge {
  display: inline-block;
  background: rgba(94, 129, 172, 0.18); border: 1px solid var(--nord10);
  color: var(--nord9); font-size: 0.75rem; font-weight: 700;
  padding: 4px 12px; border-radius: 100px; margin-bottom: 16px;
  text-transform: uppercase; letter-spacing: 0.08em;
}

.ctf-text h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem); font-weight: 700;
  color: var(--nord6); letter-spacing: -0.02em; margin-bottom: 16px; line-height: 1.2;
}
.ctf-text > p { color: var(--nord4); font-size: 1rem; line-height: 1.75; margin-bottom: 24px; }

.ctf-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.ctf-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 0.93rem; color: var(--nord4); }
.ctf-bullet { flex-shrink: 0; color: var(--nord14); font-style: normal; }

/* ===== Terminal ===== */
.terminal {
  background: var(--nord2); border-radius: 10px; overflow: hidden;
  border: 1px solid var(--nord3); box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4);
}
.terminal-bar {
  background: var(--nord3); padding: 10px 14px;
  display: flex; align-items: center; gap: 8px;
}
.terminal-dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal-title {
  flex: 1; text-align: center; font-size: 0.72rem;
  color: var(--nord4); font-family: 'JetBrains Mono', monospace;
}
.terminal-body {
  padding: 20px 24px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.8rem; line-height: 1.85;
}
.terminal-line { display: block; }
.term-prompt { color: var(--nord14); margin-right: 8px; }
.term-cmd { color: var(--nord6); }
.term-output { color: var(--nord4); padding-left: 20px; }
.term-success { color: var(--nord14); padding-left: 20px; }

/* ===== Quick Start ===== */
.quickstart { background: var(--nord1); }
.quickstart-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.qs-card { display: flex; flex-direction: column; gap: 12px; }
.qs-label {
  font-size: 0.78rem; font-weight: 700; color: var(--nord8);
  text-transform: uppercase; letter-spacing: 0.06em;
}

/* ===== Install ===== */
.install { background: var(--nord0); }
.install-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 20px; }

.install-card {
  background: var(--nord1); border: 1px solid var(--nord2); border-radius: 12px;
  padding: 24px; display: flex; flex-direction: column; gap: 12px;
  transition: border-color 0.25s;
}
.install-card:hover { border-color: var(--nord8); }

.install-icon { font-size: 1.8rem; }
.install-method { font-size: 1rem; font-weight: 600; color: var(--nord6); }
.install-method a { color: var(--nord6); border-bottom: 1px solid var(--nord3); transition: border-color 0.2s, color 0.2s; }
.install-method a:hover { color: var(--nord8); border-bottom-color: var(--nord8); }

.install-code {
  font-family: 'JetBrains Mono', monospace; font-size: 0.78rem;
  color: var(--nord14); background: var(--nord2);
  border: 1px solid var(--nord3); border-radius: 6px;
  padding: 8px 10px; display: block; overflow-x: auto; white-space: nowrap;
}

.install-card--cta {
  border-style: dashed; border-color: var(--nord3);
  justify-content: center; align-items: center; text-align: center;
}
.install-card--cta p { font-size: 0.9rem; color: var(--nord4); }

/* ===== CTA Banner ===== */
.cta-section { background: var(--nord1); border-top: 1px solid var(--nord2); border-bottom: 1px solid var(--nord2); }
.cta-inner { text-align: center; max-width: 620px; margin: 0 auto; }
.cta-inner h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 700;
  color: var(--nord6); letter-spacing: -0.02em; margin-bottom: 12px;
}
.cta-inner p { color: var(--nord4); font-size: 1rem; margin-bottom: 32px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ===== Footer ===== */
.footer { background: var(--nord0); padding: 60px 0 32px; }
.footer-inner {
  display: grid; grid-template-columns: 1fr 2fr;
  gap: 64px; margin-bottom: 48px;
}
.footer-logo {
  font-family: 'JetBrains Mono', monospace; font-size: 1.4rem;
  font-weight: 700; color: var(--nord6); display: block; margin-bottom: 8px;
}
.footer-brand p { font-size: 0.88rem; color: var(--nord3); }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col h4 {
  font-size: 0.75rem; font-weight: 700; color: var(--nord4);
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px;
}
.footer-col a { display: block; font-size: 0.88rem; color: var(--nord3); margin-bottom: 8px; transition: color 0.2s; }
.footer-col a:hover { color: var(--nord8); }
.footer-bottom {
  border-top: 1px solid var(--nord2); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.85rem; color: var(--nord3);
}
.footer-bottom a { color: var(--nord3); }
.footer-bottom a:hover { color: var(--nord8); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero > .container { grid-template-columns: 1fr; gap: 48px; }
  .hero-content { max-width: 100%; text-align: center; }
  .hero-actions { justify-content: center; }
  .install-cmd { margin: 0 auto 16px; }
  .hero-screenshot { max-width: 680px; margin: 0 auto; }
  .ctf-content { grid-template-columns: 1fr; gap: 48px; }
  .hero-trusted { text-align: center; }
}

@media (max-width: 768px) {
  .nav-link { display: none; }
  .section { padding: 60px 0; }
  .footer-inner { grid-template-columns: 1fr; gap: 36px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
  .footer-links { grid-template-columns: 1fr; }
  .install-cmd code { font-size: 0.78rem; }
}