/* =========================
       ROOT VARIABLES
    ========================= */
:root {
  --primary: #1f3cff; /* Royal Blue */
  --secondary: #00030a;
  --bg: black;
  --accent: #637dcf;
  --light: #fcfdfd;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 6px;
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.08);
  --max-width: 1200px;
}

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

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--primary);
  line-height: 1.6;
}

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

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

/* =========================
       GLOBAL LAYOUT
    ========================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 5rem 2rem;
}

section {
  position: relative;
}

.section-header {
  max-width: 700px;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 1rem;
}

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

/* =========================
       HERO
    ========================= */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--accent), #fff);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.hero p {
  color: var(--secondary);
  font-size: 1.15rem;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.9rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: all 0.25s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.hero-preview {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: var(--shadow-md);
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  font-weight: 500;
  text-align: center;
}

/* =========================
       ROLE / META
    ========================= */
.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.meta-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease;
}

.meta-card:hover {
  transform: translateY(-4px);
}

.meta-card h4 {
  margin-bottom: 0.5rem;
}

.meta-card ul {
  margin-top: 0.5rem;
  padding-left: 1.2rem;
  color: var(--secondary);
}

/* =========================
       CONTENT SECTIONS
    ========================= */
.content-block {
  max-width: 900px;
}

.content-block h3 {
  margin: 3rem 0 1rem;
  font-size: 1.6rem;
}

.content-block p,
.content-block li {
  color: var(--light);
  margin-bottom: 0.8rem;
}

.content-block ul {
  padding-left: 1.2rem;
}

/* =========================
       VISUAL COMPARISON
    ========================= */
.visual-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.visual-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease;
}

.visual-card:hover {
  transform: translateY(-6px);
}

.visual-placeholder {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--secondary);
  font-size: 0.95rem;
  padding: 1rem;
}

.thumbnail {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Modal styles */
.modal {
  display: none;
  position: fixed;
  z-index: 1;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgb(0, 0, 0);
  background-color: rgba(0, 0, 0, 0.9);
}

.modal-content {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
}

#caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: #ccc;
  padding: 10px 0;
  height: 150px;
}

/* Close button */
.close {
  position: absolute;
  top: 15px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  transition: 0.3s;
}

.close:hover,
.close:focus {
  color: #bbb;
  text-decoration: none;
  cursor: pointer;
}

.visual-card h4 {
  padding: 1rem;
  font-size: 1.05rem;
}

/* =========================
       COMING SOON
    ========================= */
.coming-soon {
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.coming-soon h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.coming-soon p {
  opacity: 0.9;
}

/* =========================
       FUTURE METRICS
    ========================= */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.metric-card {
  background: #fff;
  padding: 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.metric-card span {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

/* =========================
       FOOTER
    ========================= */
footer {
  background: #020617;
  color: #c7d2fe;
  padding: 3rem 2rem;
  text-align: center;
}

footer p {
  opacity: 0.7;
  font-size: 0.9rem;
}

/* =========================
       ANIMATIONS
    ========================= */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================
       RESPONSIVE
    ========================= */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: 4rem 0;
  }
}