*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #050816;
  --bg-alt: #0b1120;
  --card-bg: #020617;
  --accent: #fbbf24;
  --accent-soft: rgba(251, 191, 36, 0.15);
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: #1f2937;
  --radius-lg: 18px;
  --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.6);
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #1f2937 0, #020617 45%, #000 100%);
  color: var(--text);
}

body {
  min-height: 100vh;
}

/* Layout */

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(3, 7, 18, 0.85);
  border-bottom: 1px solid rgba(31, 41, 55, 0.8);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-img {
  height: 80px;
  width: auto;
  display: block;
}

.logo-text {
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 0.95rem;
}

/* Nav */

.nav {
  display: flex;
  gap: 1rem;
}

.nav-link {
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--muted);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: all 0.18s ease;
}

.nav-link:hover {
  color: var(--text);
  border-color: rgba(148, 163, 184, 0.6);
  background: radial-gradient(circle at top, rgba(148, 163, 184, 0.1), transparent);
}

.nav-link.active {
  color: #0f172a;
  background: linear-gradient(135deg, #fbbf24, #f97316);
  border-color: transparent;
}

/* Hero */

.index-hero {
  padding: 3.5rem 0 15.5rem;
  background-image: url("home.png");
}

.drive-hero {
  padding: 3.5rem 0 15.5rem;
  background-image: url("drive.png");
}

.hero-compact {
  padding-top: 2.5rem;
  padding-bottom: 2rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.15fr);
  gap: 2.25rem;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2rem, 3vw + 1rem, 3rem);
  line-height: 1.1;
  margin: 0 0 1rem;
}

.hero-text p {
  margin: 0 0 1.5rem;
  max-width: 36rem;
}

.hero-sub {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.3rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.primary-btn {
  background: linear-gradient(135deg, #fbbf24, #f97316);
  color: #0f172a;
  box-shadow: 0 12px 30px rgba(251, 191, 36, 0.45);
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 40px rgba(251, 191, 36, 0.55);
}

.secondary-btn {
  border-color: rgba(148, 163, 184, 0.7);
  color: var(--text);
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.9), #020617);
}

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

.block-btn {
  width: 100%;
  justify-content: center;
}

.btn.large {
  padding: 0.9rem 1.8rem;
  font-size: 1rem;
}

/* Hero card */

.hero-card {
  background: radial-gradient(circle at top, rgba(251, 191, 36, 0.16), #020617);
  border-radius: 24px;
  padding: 1.75rem 1.5rem;
  border: 1px solid rgba(55, 65, 81, 0.9);
  box-shadow: var(--shadow-soft);
}

.hero-card h2 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.checklist li {
  margin-bottom: 0.4rem;
  position: relative;
  padding-left: 1.4rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35rem;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(251, 191, 36, 0.9);
}

/* Generic sections */

.section {
  padding: 2.75rem 0;
}

.section.alt {
  background: rgba(15, 23, 42, 0.7);
}

.section-title {
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
}

.section-subtitle {
  margin: 0 0 2rem;
  color: var(--muted);
  max-width: 34rem;
}

/* Grid + cards */

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid.two-col {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid .card {
  background: radial-gradient(circle at top, rgba(148, 163, 184, 0.07), #020617);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(31, 41, 55, 0.9);
  padding: 1.4rem 1.3rem;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.5);
}

.grid .card h3 {
  margin-top: 0;
  margin-bottom: 0.4rem;
  font-size: 1.05rem;
}

.grid .card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

/* Feature list */

.feature-list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.feature-list li {
  margin-bottom: 0.5rem;
}

/* Info box */

.info-box {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(55, 65, 81, 0.9);
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.9), #020617);
  padding: 1.4rem 1.3rem;
  font-size: 0.9rem;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.6);
}

.info-box.small {
  font-size: 0.85rem;
}

.info-box h3,
.info-box h2 {
  margin-top: 0;
}

/* CTA */

.cta {
  padding: 2.5rem 0 3rem;
}

.cta-inner {
  border-radius: 26px;
  padding: 1.8rem 1.6rem;
  border: 1px solid rgba(253, 224, 71, 0.55);
  background: radial-gradient(circle at top left, #fbbf24, #0b1120 55%, #020617);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  box-shadow: 0 20px 45px rgba(251, 191, 36, 0.45);
}

.cta-inner h2 {
  margin: 0 0 0.4rem;
}

.cta-inner p {
  margin: 0;
  color: #fef9c3;
  max-width: 32rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(31, 41, 55, 0.9);
  padding: 1.1rem 0 1.4rem;
  background: #020617;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Contact page layout */

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.1fr);
  gap: 2rem;
  align-items: flex-start;
}

.contact-layout h1 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.contact-layout p {
  color: var(--muted);
}

/* Form */

.contact-form {
  margin-top: 1.5rem;
  background: rgba(15, 23, 42, 0.9);
  border-radius: 22px;
  padding: 1.6rem 1.4rem;
  border: 1px solid rgba(31, 41, 55, 0.9);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.75);
}

.form-row {
  margin-bottom: 1rem;
}

.form-row.two-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.9rem;
}

label {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.25rem;
  color: var(--muted);
}

input,
textarea {
  width: 100%;
  border-radius: 999px;
  border: 1px solid rgba(55, 65, 81, 0.9);
  background: #020617;
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

textarea {
  border-radius: 16px;
  resize: vertical;
  min-height: 120px;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(251, 191, 36, 0.45);
  background: #020617;
}

.form-note {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.75rem;
}

/* Popup */

.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.popup-overlay.hidden {
  display: none;
}

.popup-card {
  background: radial-gradient(circle at top, rgba(251, 191, 36, 0.16), #020617);
  border-radius: 20px;
  padding: 1.75rem 1.5rem;
  max-width: 420px;
  width: 90%;
  border: 1px solid rgba(55, 65, 81, 0.9);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.65);
  text-align: left;
}

.popup-card h2 {
  margin-top: 0;
  margin-bottom: 0.4rem;
}

.popup-card p {
  margin-top: 0;
  margin-bottom: 1rem;
}

/* Misc */

.muted {
  color: var(--muted);
}

/* Responsive */

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-card {
    max-width: 420px;
    margin: 0 auto;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .header-inner {
    gap: 0.75rem;
  }
}

@media (max-width: 600px) {
  .site-header {
    position: static;
  }

  .hero {
    padding-top: 2.25rem;
  }

  .cta-inner {
    padding: 1.4rem 1.2rem;
  }

  .contact-form {
    padding: 1.4rem 1.1rem;
  }

  .nav-link {
    padding-inline: 0.7rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}