/* ============================================
   Peptide IQ — Website Styles
   ============================================ */

/* --- Variables --- */
:root {
  --blue-50: #EFF6FF;
  --blue-100: #DBEAFE;
  --blue-200: #BFDBFE;
  --blue-300: #93C5FD;
  --blue-400: #60A5FA;
  --blue-500: #3B82F6;
  --blue-600: #2563EB;
  --blue-700: #1D4ED8;
  --blue-800: #1E40AF;
  --blue-900: #1E3A8A;

  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  --green-500: #10B981;
  --orange-500: #F59E0B;
  --red-500: #EF4444;

  --dark: #0A0F1C;
  --dark-lighter: #111827;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background: #F8FAFC;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4 {
  font-family: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

/* --- Layout --- */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav.scrolled {
  padding: 12px 0;
  background: rgba(10, 15, 28, 0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 1.125rem;
  color: white;
}

.nav-logo svg {
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
  letter-spacing: 0.01em;
}

.nav-links a:hover {
  color: white;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--dark);
  overflow: hidden;
  padding: 120px 24px 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  will-change: transform;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: rgba(59, 130, 246, 0.25);
  top: -150px;
  right: -100px;
  animation: float1 25s ease-in-out infinite;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: rgba(96, 165, 250, 0.2);
  bottom: -100px;
  left: -100px;
  animation: float2 30s ease-in-out infinite;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: rgba(129, 140, 248, 0.15);
  top: 40%;
  left: 50%;
  animation: float3 20s ease-in-out infinite;
}

@keyframes float1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-40px, 30px) scale(1.05); }
  66% { transform: translate(20px, -20px) scale(0.97); }
}

@keyframes float2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(0.95); }
  66% { transform: translate(-25px, 15px) scale(1.03); }
}

@keyframes float3 {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  33% { transform: translate(calc(-50% + 50px), calc(-50% - 30px)) scale(1.08); }
  66% { transform: translate(calc(-50% - 30px), calc(-50% + 40px)) scale(0.92); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
}

.hero-content > * {
  animation: fadeInUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-content > *:nth-child(1) { animation-delay: 0.1s; }
.hero-content > *:nth-child(2) { animation-delay: 0.2s; }
.hero-content > *:nth-child(3) { animation-delay: 0.35s; }
.hero-content > *:nth-child(4) { animation-delay: 0.5s; }
.hero-content > *:nth-child(5) { animation-delay: 0.65s; }

.badge {
  display: inline-block;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.12);
  color: var(--blue-300);
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid rgba(59, 130, 246, 0.18);
  letter-spacing: 0.03em;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  background: linear-gradient(145deg, #FFFFFF 30%, var(--blue-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-family: 'Sora', sans-serif;
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  color: var(--blue-300);
  font-weight: 500;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.55);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  border: none;
}

.btn svg {
  display: inline-block;
}

.btn-primary {
  background: var(--blue-500);
  color: white;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  background: var(--blue-600);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

.btn-primary:active {
  transform: translateY(0);
}

/* --- Features --- */
.features {
  padding: 100px 0;
  background: #F8FAFC;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  color: var(--gray-900);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--gray-500);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  border-color: var(--blue-200);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: white;
  transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
  transform: scale(1.08) rotate(-3deg);
}

.feature-card h3 {
  font-size: 1.1rem;
  color: var(--gray-900);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.65;
}

/* --- CTA Section --- */
.cta-section {
  background: var(--dark);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.08);
  filter: blur(100px);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.cta-section h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  color: white;
  margin-bottom: 16px;
  position: relative;
  letter-spacing: -0.02em;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 1.05rem;
  margin-bottom: 32px;
  position: relative;
}

.cta-section .btn {
  position: relative;
}

/* --- Footer --- */
.footer {
  background: var(--dark-lighter);
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  color: white;
  font-size: 1rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--gray-400);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: white;
}

.footer-copy {
  color: var(--gray-500);
  font-size: 0.8rem;
}

/* --- Page Header (Privacy/Support) --- */
.page-header {
  background: var(--dark);
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.1);
  filter: blur(100px);
  top: -100px;
  right: -100px;
}

.page-header h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  color: white;
  margin-bottom: 12px;
  position: relative;
  letter-spacing: -0.02em;
}

.page-header .subtitle {
  color: rgba(255, 255, 255, 0.5);
  font-size: 1rem;
  position: relative;
}

/* --- Content Pages --- */
.content-section {
  padding: 60px 0 100px;
}

.content-wrap {
  max-width: 720px;
  margin: 0 auto;
}

.content-wrap h2 {
  font-size: 1.35rem;
  color: var(--gray-900);
  margin-top: 40px;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.content-wrap h2:first-child {
  margin-top: 0;
}

.content-wrap p {
  color: var(--gray-600);
  margin-bottom: 16px;
  line-height: 1.75;
}

.content-wrap ul {
  color: var(--gray-600);
  margin-bottom: 16px;
  padding-left: 24px;
  line-height: 1.75;
}

.content-wrap li {
  margin-bottom: 6px;
}

.content-wrap a {
  color: var(--blue-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.content-wrap a:hover {
  color: var(--blue-600);
}

/* --- FAQ --- */
.faq-list {
  margin-top: 16px;
}

.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  background: white;
  overflow: hidden;
  transition: border-color 0.2s;
}

.faq-item:hover {
  border-color: var(--blue-200);
}

.faq-item summary {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--gray-800);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--gray-400);
  font-weight: 400;
  transition: transform 0.2s;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item[open] summary {
  border-bottom: 1px solid var(--gray-100);
}

.faq-answer {
  padding: 16px 24px 20px;
  color: var(--gray-600);
  line-height: 1.7;
  font-size: 0.9rem;
}

/* --- Contact Card --- */
.contact-card {
  margin-top: 48px;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
}

.contact-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: white;
}

.contact-card h3 {
  font-size: 1.2rem;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.contact-card > p {
  color: var(--gray-500);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.contact-email {
  display: inline-block;
  color: var(--blue-500) !important;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  background: var(--blue-50);
  transition: all 0.2s;
  text-decoration: none !important;
}

.contact-email:hover {
  background: var(--blue-100);
  color: var(--blue-600) !important;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .nav-links {
    gap: 20px;
  }

  .nav-links a {
    font-size: 0.8rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 120px 20px 60px;
  }

  .features {
    padding: 60px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .cta-section {
    padding: 60px 0;
  }

  .feature-card {
    padding: 24px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .content-wrap {
    padding: 0 4px;
  }

  .contact-card {
    padding: 28px 20px;
  }

  .faq-item summary {
    padding: 16px 20px;
    font-size: 0.9rem;
  }

  .faq-answer {
    padding: 12px 20px 16px;
  }
}