/* PRISM Marketing Site Styles */

:root {
  --bg-dark: #0a0f1a;
  --bg-darker: #050810;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-soft: rgba(99, 102, 241, 0.15);
  --accent-green: #10b981;
  --accent-green-soft: rgba(16, 185, 129, 0.15);
  --accent-red: #ef4444;
  --accent-red-soft: rgba(239, 68, 68, 0.15);
  --text-main: #f9fafb;
  --text-secondary: #d1d5db;
  --text-muted: #9ca3af;
  --border: #1f2937;
  --border-light: #374151;
  --max-width: 1200px;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

strong {
  color: var(--accent-light);
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  text-decoration: none;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

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

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--accent);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 15, 26, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.05em;
}

.logo-img {
  height: 36px;
  width: auto;
  border-radius: 6px;
}

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

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text-main);
}

.nav-links .btn {
  margin-left: 8px;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 1px;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    var(--bg-dark);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text-main) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.hero-tagline {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Sections */
.section {
  padding: 100px 0;
}

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

.section-title {
  text-align: center;
  margin-bottom: 16px;
}

.section-lead {
  text-align: center;
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 16px;
}

.section-sublead {
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-lead:last-of-type {
  margin-bottom: 60px;
}

.section-conclusion {
  text-align: center;
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-top: 60px;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-light);
  margin-bottom: 8px;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Problem Contrast */
.problem-contrast {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.contrast-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 320px;
}

.contrast-card h3 {
  margin-bottom: 20px;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.contrast-card li {
  padding: 8px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.contrast-card li:last-child {
  border-bottom: none;
}

.contrast-highlight {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.contrast-highlight h3 {
  color: var(--accent-light);
}

.contrast-arrow {
  color: var(--accent);
}

/* Opportunity Grid */
.opportunity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.opportunity-item {
  text-align: center;
  padding: 32px 24px;
}

.opportunity-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  border-radius: var(--radius);
  color: var(--accent-light);
}

.opportunity-item h4 {
  margin-bottom: 12px;
}

.opportunity-headline {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 1rem;
  margin-bottom: 6px;
}

.opportunity-item p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Solution Grid */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.solution-grid-three {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.solution-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.solution-card h3 {
  margin-bottom: 24px;
}

.solution-card li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  color: var(--text-secondary);
}

.solution-card li svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.solution-card.does {
  border-color: var(--accent-green);
}

.solution-card.does li svg {
  color: var(--accent-green);
}

.solution-card.does-not {
  border-color: var(--accent-red);
}

.solution-card.does-not li svg {
  color: var(--accent-red);
}

.solution-card.copilot {
  border-color: var(--accent);
}

.solution-card.copilot li svg {
  color: var(--accent-light);
}

.card-intro {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
  line-height: 1.6;
}

.card-note {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Workflow Steps */
.workflow-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.workflow-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  max-width: 220px;
}

.step-number {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.25rem;
}

.workflow-step h4 {
  margin-bottom: 8px;
}

.workflow-step p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.workflow-connector {
  width: 40px;
  height: 2px;
  background: var(--border);
  margin-top: 56px;
}

/* Philosophy Cards */
.philosophy-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.philosophy-card {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.philosophy-card h4 {
  color: var(--accent-light);
  margin-bottom: 12px;
}

.philosophy-card p {
  color: var(--text-secondary);
}

/* Screenshots */
.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 32px;
}

.screenshot-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.screenshot-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.screenshot-item img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  background: var(--bg-darker);
  cursor: pointer;
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}

.lightbox.active {
  display: flex;
}

.lightbox img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  color: var(--text-muted);
  font-size: 2rem;
  font-weight: 300;
  cursor: pointer;
  transition: color 0.2s;
}

.lightbox-close:hover {
  color: var(--text-main);
}

@media (max-width: 768px) {
  .lightbox {
    display: none !important;
  }
  .screenshot-item img {
    cursor: default;
  }
}

.screenshot-caption {
  padding: 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Deployment Options */
.deployment-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  margin-bottom: 60px;
}

.deployment-card {
  background: var(--bg-card);
  border: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  position: relative;
}

.deployment-badge {
  position: absolute;
  top: -12px;
  left: 24px;
  background: var(--accent);
  color: white;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.deployment-card h3 {
  margin-bottom: 16px;
  color: var(--accent-light);
}

.deployment-card > p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.deployment-features {
  list-style: none;
}

.deployment-features li {
  padding: 8px 0;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.deployment-features li::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Security Grid */
.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.security-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
}

.security-icon {
  color: var(--accent-light);
  margin-bottom: 20px;
}

.security-card h3 {
  margin-bottom: 12px;
}

.security-card p {
  color: var(--text-muted);
}

/* Whitepapers */
.whitepapers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.whitepaper-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
}

.whitepaper-icon {
  color: var(--accent-light);
  margin-bottom: 20px;
}

.whitepaper-card h3 {
  margin-bottom: 12px;
}

.whitepaper-card p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

.whitepaper-gated {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.whitepaper-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.whitepaper-buttons .btn {
  flex: 1;
  max-width: 120px;
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-main);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
}

.form-checkbox input {
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
}

.form-checkbox label {
  margin-bottom: 0;
  cursor: pointer;
}

.contact-form .btn {
  width: 100%;
  margin-top: 8px;
}

.form-status {
  text-align: center;
  margin-top: 16px;
  font-size: 0.9rem;
}

.form-status.success {
  color: var(--accent-green);
}

.form-status.error {
  color: var(--accent-red);
}

/* FAQ Section */
.faq-category {
  margin-bottom: 48px;
}

.faq-category:last-child {
  margin-bottom: 0;
}

.faq-category-title {
  color: var(--accent-light);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.faq-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s;
}

.faq-card:hover {
  border-color: var(--border-light);
}

.faq-card.active {
  border-color: var(--accent);
}

.faq-toggle {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.faq-question {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  padding-right: 32px;
}

.faq-preview {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-right: 32px;
}

.faq-card.active .faq-preview {
  display: none;
}

.faq-chevron {
  position: absolute;
  top: 20px;
  right: 20px;
  color: var(--text-muted);
  transition: transform 0.3s ease;
}

.faq-card.active .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent-light);
}

.faq-answer {
  display: none;
  padding: 0 24px 20px;
}

.faq-card.active .faq-answer {
  display: block;
}

.faq-answer p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-answer p + p {
  margin-top: 12px;
}

@media (max-width: 768px) {
  .faq-grid {
    grid-template-columns: 1fr;
  }
}

/* Footer */
.footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--border);
  padding: 60px 0;
}

.footer-content {
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.footer-tagline {
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom {
  text-align: center;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-darker);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 16px 24px;
    gap: 0;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-links li:last-child a {
    border-bottom: none;
    margin-top: 8px;
  }

  .nav-links .btn {
    margin-left: 0;
    width: 100%;
    text-align: center;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

  .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero {
    padding: 100px 24px 60px;
  }

  .section {
    padding: 60px 0;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact-form {
    padding: 32px 24px;
  }

  .workflow-connector {
    display: none;
  }

  .workflow-steps {
    flex-direction: column;
    align-items: center;
  }

  .workflow-step {
    max-width: 100%;
  }

  .problem-contrast {
    flex-direction: column;
  }

  .contrast-arrow {
    transform: rotate(90deg);
  }

  .contrast-card {
    max-width: 100%;
  }

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