/* ========================================
   Aegis AGI — Premium Landing Page Styles
   ======================================== */

/* CSS Variables */
:root {
  --color-bg-primary: #0D1117;
  --color-bg-secondary: #161B22;
  --color-bg-tertiary: #0A0C10;
  --color-border: #21262D;
  --color-border-light: #30363D;
  
  --color-gold: #D4A853;
  --color-gold-light: #E5BE6E;
  --color-gold-dark: #B8943F;
  --color-gold-muted: #8B6F2E;
  
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #8B949E;
  --color-text-muted: #6E7681;
  
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
  
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 0 40px rgba(212, 168, 83, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 48px;
  }
}

/* ========================================
   Navigation
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 17, 23, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--color-text-primary);
}

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

.nav-links {
  display: none;
  align-items: center;
  gap: 8px;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  padding: 8px 16px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link-cta {
  background: var(--color-gold);
  color: var(--color-bg-primary) !important;
  font-weight: 600;
  margin-left: 8px;
}

.nav-link-cta:hover {
  background: var(--color-gold-light);
}

/* Mobile Menu Toggle */
.nav-mobile-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

@media (min-width: 768px) {
  .nav-mobile-toggle {
    display: none;
  }
}

.nav-mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-mobile-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.nav-links.mobile-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--color-bg-secondary);
  padding: 24px;
  border-bottom: 1px solid var(--color-border);
  gap: 4px;
}

.nav-links.mobile-open .nav-link {
  padding: 12px 16px;
  width: 100%;
  text-align: left;
}

.nav-links.mobile-open .nav-link-cta {
  margin-left: 0;
  margin-top: 8px;
  text-align: center;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-gradient {
  position: absolute;
  top: -50%;
  left: -50%;
  right: -50%;
  bottom: -50%;
  background: 
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(212, 168, 83, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 50%, rgba(46, 139, 255, 0.08), transparent);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(to bottom, transparent 0%, black 20%, black 80%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 20%, black 80%, transparent 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(212, 168, 83, 0.1);
  border: 1px solid rgba(212, 168, 83, 0.2);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gold);
  margin-bottom: 32px;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-gold);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.9); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 50%, var(--color-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 64px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.btn-primary {
  background: var(--color-gold);
  color: var(--color-bg-primary);
  box-shadow: 0 0 0 0 rgba(212, 168, 83, 0.4);
}

.btn-primary:hover {
  background: var(--color-gold-light);
  box-shadow: 0 0 0 4px rgba(212, 168, 83, 0.15);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-light);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-text-secondary);
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.125rem;
}

.btn-full {
  width: 100%;
}

/* Hero Trust Section */
.hero-trust {
  border-top: 1px solid var(--color-border);
  padding-top: 32px;
}

.hero-trust p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.hero-trust-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: center;
}

.trust-logo {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--color-text-muted);
  opacity: 0.7;
}

/* ========================================
   Section Styles
   ======================================== */
.section {
  padding: 100px 0;
}

@media (min-width: 768px) {
  .section {
    padding: 140px 0;
  }
}

.section-dark {
  background: var(--color-bg-primary);
}

.section-darker {
  background: var(--color-bg-tertiary);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-description {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
}

/* ========================================
   About Section
   ======================================== */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.about-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-normal);
}

.about-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.about-icon {
  width: 56px;
  height: 56px;
  background: rgba(212, 168, 83, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  margin-bottom: 20px;
}

.about-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.about-card p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ========================================
   Features Section
   ======================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-item {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.feature-item:hover {
  border-color: var(--color-gold-muted);
}

.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: rgba(212, 168, 83, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
}

.feature-content h4 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-content p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px;
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card:hover {
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-gold);
}

.pricing-card:first-child {
  border-color: var(--color-gold-muted);
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, rgba(212, 168, 83, 0.05) 100%);
}

.pricing-card:first-child::before {
  content: 'Most Popular';
  position: absolute;
  top: -1px;
  right: 24px;
  background: var(--color-gold);
  color: var(--color-bg-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 12px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.pricing-label {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  display: block;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}

.pricing-currency {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.pricing-amount {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1;
}

.pricing-period {
  font-size: 1rem;
  color: var(--color-text-secondary);
}

.pricing-description {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 32px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

.pricing-features li svg {
  flex-shrink: 0;
  color: var(--color-gold);
}

.pricing-note {
  text-align: center;
  margin-top: 40px;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 80px;
}

.testimonial-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
}

.testimonial-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  padding: 4px 8px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
}

.testimonial-stars {
  color: var(--color-gold);
  font-size: 1.25rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.testimonial-text {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text-primary);
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-gold-muted), var(--color-gold-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-primary);
}

.testimonial-info {
  display: flex;
  flex-direction: column;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.9375rem;
}

.testimonial-role {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* Trust Indicators */
.trust-indicators {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  text-align: center;
  padding: 40px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

@media (min-width: 640px) {
  .trust-indicators {
    grid-template-columns: repeat(4, 1fr);
  }
}

.trust-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.trust-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ========================================
   FAQ Section
   ======================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 1.125rem;
  font-weight: 500;
  text-align: left;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-gold);
}

.faq-question svg {
  flex-shrink: 0;
  transition: transform var(--transition-normal);
  color: var(--color-text-secondary);
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 24px;
}

.faq-answer p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========================================
   CTA Section
   ======================================== */
.section-cta {
  position: relative;
  padding: 120px 0;
  background: var(--color-bg-tertiary);
  overflow: hidden;
}

.cta-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(212, 168, 83, 0.1), transparent),
    radial-gradient(ellipse 40% 40% at 20% 50%, rgba(46, 139, 255, 0.05), transparent);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.cta-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.cta-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.form-group input {
  width: 100%;
  padding: 16px 20px;
  font-size: 1rem;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input::placeholder {
  color: var(--color-text-muted);
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.1);
}

.cta-guarantee {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--color-bg-tertiary);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  gap: 48px;
  margin-bottom: 48px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 2fr;
  }
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.footer-tagline {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

@media (min-width: 640px) {
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-column h4 {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
  margin-bottom: 16px;
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 8px;
}

.footer-column a {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--color-gold);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bottom p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ========================================
   Animations & Effects
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
}

.stagger-children.active > *:nth-child(1) { animation: fadeInUp 0.5s ease 0.1s forwards; }
.stagger-children.active > *:nth-child(2) { animation: fadeInUp 0.5s ease 0.2s forwards; }
.stagger-children.active > *:nth-child(3) { animation: fadeInUp 0.5s ease 0.3s forwards; }
.stagger-children.active > *:nth-child(4) { animation: fadeInUp 0.5s ease 0.4s forwards; }
.stagger-children.active > *:nth-child(5) { animation: fadeInUp 0.5s ease 0.5s forwards; }
.stagger-children.active > *:nth-child(6) { animation: fadeInUp 0.5s ease 0.6s forwards; }

/* Hover glow effect for cards */
.hover-glow {
  transition: box-shadow var(--transition-normal);
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(212, 168, 83, 0.1);
}

/* Smooth scrolling for the whole page */
html {
  scroll-behavior: smooth;
}

/* Selection color */
::selection {
  background: rgba(212, 168, 83, 0.3);
  color: var(--color-text-primary);
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}