/* ============================================================
   SolveFins Cyber Risk Data — styles.css
   Design system: dark fintech, security-focused neon accents, glassmorphism
   ============================================================ */

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Color tokens - Shifted towards Cyber / Security (Teal, Cyan, Deep Blue) */
  --bg-base: #020617;
  --bg-surface: #0f172a;
  --bg-card: #1e293b;
  --bg-glass: rgba(15, 23, 42, 0.6);

  --accent-primary: #06b6d4;
  /* Cyan 500 */
  --accent-secondary: #0891b2;
  /* Cyan 600 */
  --accent-glow: rgba(6, 182, 212, 0.4);

  --risk-high: #ef4444;
  --risk-medium: #f59e0b;
  --risk-low: #10b981;

  --blue-900: #1e1b4b;
  --blue-700: #312e81;
  --blue-500: #4338ca;

  --white: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-300: #cbd5e1;
  --gray-500: #64748b;
  --gray-700: #334155;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-gap: 120px;
  --container: 1200px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--accent-secondary);
  border-radius: 3px;
}

/* ===== LAYOUT ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: var(--section-gap) 0;
  position: relative;
}

/* ===== TYPOGRAPHY ===== */
h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.6rem, 5.5vw, 4.4rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

h3 {
  font-size: 1.35rem;
}

h4 {
  font-size: 1.1rem;
}

p {
  color: var(--gray-300);
  line-height: 1.7;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--blue-500) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-primary);
  border: 1px solid rgba(6, 182, 212, 0.3);
  background: rgba(6, 182, 212, 0.08);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 72px;
}

.section-header h2 {
  margin-bottom: 16px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 0.93rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.25s var(--ease-out);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #000;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: rgba(6, 182, 212, 0.08);
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all 0.4s var(--ease-out);
}

.navbar.scrolled {
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--white);
}

.logo-accent {
  color: var(--accent-primary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-300);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--accent-primary);
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(circle at 50% 50%, #083344 0%, #020617 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(6, 182, 212, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6, 182, 212, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 30%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-headline {
  margin-bottom: 24px;
  max-width: 900px;
}

.hero-subheadline {
  margin-bottom: 40px;
  max-width: 650px;
  font-size: 1.15rem;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
}

/* ===== CARDS & GRIDS ===== */
.problems-grid,
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.problem-card,
.use-case-card {
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 32px;
  transition: all 0.3s var(--ease-out);
}

.problem-card:hover,
.use-case-card:hover {
  transform: translateY(-8px);
  border-color: rgba(6, 182, 212, 0.3);
  background: var(--bg-card);
}

.problem-icon,
.uc-icon {
  width: 56px;
  height: 56px;
  background: rgba(6, 182, 212, 0.1);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--accent-primary);
}

/* ===== PIPELINE / LAYERS ===== */
.pipeline-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
}

.pipeline-step {
  display: flex;
  gap: 24px;
  padding: 24px;
  background: var(--bg-glass);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
}

.step-num {
  font-family: var(--font-mono);
  color: var(--accent-primary);
  font-weight: 700;
  font-size: 1.2rem;
}

/* ===== ARCHITECTURE ===== */
.arch-diagram {
  display: flex;
  flex-direction: column;
  gap: 40px;
  background: rgba(15, 23, 42, 0.4);
  padding: 40px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.arch-layer {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.layer-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--gray-500);
  letter-spacing: 0.1em;
}

.layer-nodes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.arch-node {
  background: var(--bg-card);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  transition: all 0.3s;
}

.arch-node:hover {
  background: var(--accent-primary);
  color: #000;
  transform: scale(1.05);
}

/* ===== FOOTER ===== */
.footer {
  padding: 60px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: #000;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ===== ANIMATIONS ===== */
[data-animate="fadeUp"] {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--ease-out);
}

[data-animate="fadeUp"].visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile adjustments */
/* ===== CTA SECTION ===== */
.cta-section {
  padding: 100px 0;
  text-align: center;
}

.cta-card {
  background: var(--bg-card);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 32px;
  padding: 80px 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-card h2 {
  font-size: 3rem;
  margin-bottom: 24px;
}

.cta-card p {
  font-size: 1.2rem;
  color: var(--gray-300);
  max-width: 600px;
  margin: 0 auto 40px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.9);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-card);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: 24px;
  padding: 48px;
  max-width: 520px;
  width: 90%;
  position: relative;
  transform: translateY(24px) scale(0.98);
  transition: all 0.4s var(--ease-out);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.modal-overlay.open .modal {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--bg-base);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--gray-300);
  transition: all 0.2s;
}

.modal-close:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.modal-content h3 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.modal-content p {
  font-size: 0.95rem;
  color: var(--gray-300);
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-300);
  margin-bottom: 8px;
}

.form-group input,
.form-group select {
  width: 100%;
  background: var(--bg-base);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 0.95rem;
  color: var(--white);
  font-family: var(--font-body);
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent-primary);
}

.modal-submit {
  width: 100%;
  margin-top: 12px;
  justify-content: center;
  font-size: 1rem;
  padding: 14px;
}