/* ======================================================
   PuzzleSec – Styles
   ====================================================== */

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

:root {
  --clr-bg: #0a0d14;
  --clr-bg-2: #0f1420;
  --clr-bg-3: #141926;
  --clr-border: rgba(255,255,255,0.08);
  --clr-accent: #6366f1;
  --clr-accent-2: #8b5cf6;
  --clr-cyan: #06b6d4;
  --clr-text: #e2e8f0;
  --clr-text-muted: #8892a4;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 32px rgba(0,0,0,0.4);
  --font-mono: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, 'DejaVu Sans Mono', monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--clr-bg);
  color: var(--clr-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ---- Layout ---- */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}
.section-dark {
  background: var(--clr-bg-2);
}
.section-accent {
  background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
}

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.2rem; font-weight: 600; }

.gradient-text {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-2));
  color: #fff;
  box-shadow: 0 0 24px rgba(99,102,241,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(99,102,241,0.55);
}
.btn-ghost {
  background: transparent;
  color: var(--clr-text-muted);
  border: 1px solid var(--clr-border);
}
.btn-ghost:hover {
  color: var(--clr-text);
  border-color: rgba(255,255,255,0.25);
}
.btn-outline {
  background: transparent;
  color: var(--clr-accent);
  border: 1px solid var(--clr-accent);
  padding: 9px 20px;
}
.btn-outline:hover {
  background: var(--clr-accent);
  color: #fff;
}
.btn-full { width: 100%; justify-content: center; }

/* ---- Navbar ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10,13,20,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--clr-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--clr-text);
}
.logo-img {
  display: block;
  height: 30px;
  width: auto;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--clr-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--clr-text); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--clr-text);
  font-size: 1.4rem;
  cursor: pointer;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: 160px 0 96px;
  overflow: hidden;
}
.hero-inner {
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-block;
  background: rgba(99,102,241,0.15);
  border: 1px solid rgba(99,102,241,0.4);
  color: var(--clr-accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}
.hero h1 {
  margin-bottom: 20px;
  max-width: 680px;
}
.hero-sub {
  color: var(--clr-text-muted);
  font-size: 1.15rem;
  max-width: 560px;
  margin-bottom: 36px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid var(--clr-border);
}
.stat {}
.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  line-height: 1.4;
}
.hero-glow {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(99,102,241,0.12) 0%, transparent 65%);
  pointer-events: none;
}

/* ---- Section Headers ---- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--clr-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-header h2 { margin-bottom: 16px; }
.section-header p { color: var(--clr-text-muted); font-size: 1.05rem; }

/* ---- Services Grid ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--clr-bg-3);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color 0.2s, transform 0.2s;
}
.service-card:hover {
  border-color: rgba(99,102,241,0.4);
  transform: translateY(-4px);
}
.service-card.featured {
  border-color: rgba(99,102,241,0.3);
  background: linear-gradient(135deg, rgba(99,102,241,0.08) 0%, var(--clr-bg-3) 100%);
}
.service-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.service-card h3 {
  margin-bottom: 12px;
  font-size: 1.1rem;
}
.service-card p {
  color: var(--clr-text-muted);
  font-size: 0.92rem;
  margin-bottom: 20px;
}
.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.service-list li {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  padding-left: 16px;
  position: relative;
}
.service-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--clr-accent);
}

/* ---- Process Steps ---- */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 720px;
  margin: 0 auto 48px;
}
.step {
  display: flex;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--clr-border);
}
.step:last-child { border-bottom: none; }
.step-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-accent);
  letter-spacing: 0.05em;
  padding-top: 4px;
  min-width: 28px;
}
.step-content h3 {
  margin-bottom: 8px;
  font-size: 1rem;
}
.step-content p {
  color: var(--clr-text-muted);
  font-size: 0.92rem;
}
.method-callout {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.3);
  border-radius: var(--radius);
  padding: 28px 32px;
  max-width: 720px;
  margin: 0 auto;
}
.callout-icon { font-size: 1.6rem; flex-shrink: 0; }
.method-callout strong { display: block; margin-bottom: 4px; font-size: 1rem; }
.method-callout p { color: var(--clr-text-muted); font-size: 0.9rem; }

/* ---- Audiences ---- */
.audiences {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.audience-card {
  background: var(--clr-bg-3);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.audience-icon { font-size: 2.5rem; margin-bottom: 16px; }
.audience-card h3 { margin-bottom: 12px; }
.audience-card > p { color: var(--clr-text-muted); font-size: 0.92rem; margin-bottom: 20px; }
.audience-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.audience-card ul li {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  padding-left: 20px;
  position: relative;
}
.audience-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--clr-cyan);
  font-weight: 700;
}

/* ---- Contact ---- */
.contact-box {
  max-width: 600px;
  margin: 0 auto;
}
.contact-simple {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.contact-invite {
  font-size: 1.1rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  max-width: 480px;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--clr-text-muted);
}
.form-group input,
.form-group textarea {
  background: var(--clr-bg-3);
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--clr-text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #4a5568;
}
.form-note {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  text-align: center;
}

/* ---- Footer ---- */
.footer {
  background: var(--clr-bg-2);
  border-top: 1px solid var(--clr-border);
  padding: 64px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 64px;
  padding-bottom: 48px;
}
.footer-brand p {
  color: var(--clr-text-muted);
  font-size: 0.9rem;
  margin-top: 12px;
  max-width: 320px;
}
.footer-address {
  color: var(--clr-text-muted);
  font-size: 0.82rem;
  font-style: normal;
  line-height: 1.7;
  margin-top: 16px;
}
.footer-links {
  display: flex;
  gap: 48px;
}
.footer-links strong {
  display: block;
  font-size: 0.85rem;
  color: var(--clr-text);
  margin-bottom: 14px;
}
.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-links ul li a {
  color: var(--clr-text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
}
.footer-links ul li a:hover { color: var(--clr-text); }
.footer-bottom {
  border-top: 1px solid var(--clr-border);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--clr-text-muted);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .service-card.featured {
    grid-column: span 1;
  }
  .audiences {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .hero { padding: 120px 0 64px; }
  .hero-stats { gap: 28px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { text-align: center; justify-content: center; }
  .form-row { grid-template-columns: 1fr; }
  .footer-links { flex-direction: column; gap: 32px; }
  .footer-bottom .container { flex-direction: column; gap: 8px; text-align: center; }
  .step { flex-direction: column; gap: 8px; }
  .method-callout { flex-direction: column; }
}