/* ============================================
   DisConnex Rail — Design System
   Cursor-inspired dark aesthetic
   ============================================ */

:root {
  --bg-deep: #060B14;
  --bg-primary: #0A1A2F;
  --bg-elevated: #0F2340;
  --bg-card: #112845;
  --bg-card-hover: #163055;

  --gold: #F5B400;
  --gold-dim: #C49000;
  --blue-accent: #2B6FE0;

  --text-primary: #E6EAF2;
  --text-secondary: #8A97AD;
  --text-muted: #5A6A82;

  /* Light theme (body sections) */
  --surface: #FFFFFF;
  --surface-alt: #EFF3F8;
  --text-dark: #0A1A2F;
  --text-dark-secondary: #4A5A72;
  --text-dark-muted: #8291A6;
  --border-light: rgba(10, 26, 47, 0.10);
  --border-light-hover: rgba(10, 26, 47, 0.20);
  --shadow-card-light: 0 10px 30px rgba(10, 26, 47, 0.08);

  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-glow: 0 0 60px rgba(245, 180, 0, 0.08);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--surface);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography helpers */
.text-gold {
  color: var(--gold);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--gold {
  background: var(--gold);
  color: var(--bg-deep);
}

.btn--gold:hover {
  background: #ffc520;
  box-shadow: 0 0 30px rgba(245, 180, 0, 0.25);
  transform: translateY(-1px);
}

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

.btn--ghost:hover {
  border-color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

.btn--full {
  width: 100%;
}

/* Wordmark */
.nav__brand {
  display: inline-flex;
  align-items: center;
  transition: opacity var(--transition);
}

.nav__brand:hover {
  opacity: 0.85;
}

.nav__logo {
  height: 40px;
  width: auto;
  display: block;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
}

.nav--scrolled {
  background: rgba(6, 11, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

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

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

.nav__links a:not(.btn) {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav__links a:not(.btn):hover {
  color: var(--text-primary);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition);
  border-radius: 2px;
}

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

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

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

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(6, 11, 20, 0.92) 0%,
    rgba(10, 26, 47, 0.75) 50%,
    rgba(6, 11, 20, 0.85) 100%
  );
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: 140px 24px 100px;
  max-width: 800px;
}

.hero__eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: #FFFFFF;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: 40px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Trust band */
.trust {
  background: var(--surface-alt);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 40px 0;
}

.trust__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.trust__item {
  text-align: center;
  min-width: 140px;
}

.trust__number {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.02em;
}

.trust__label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dark-muted);
  margin-top: 4px;
}

.trust__divider {
  width: 1px;
  height: 40px;
  background: var(--border-light);
}

/* Sections */
.section {
  padding: 100px 0;
  background: var(--surface);
}

.section--alt {
  background: var(--surface-alt);
}

.section--contact {
  background: var(--surface-alt);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section__eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold-dim);
  margin-bottom: 12px;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  color: var(--text-dark);
}

.section__desc {
  font-size: 1.05rem;
  color: var(--text-dark-secondary);
  line-height: 1.7;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-card-light);
  transition: all var(--transition);
}

.card:hover {
  border-color: var(--border-light-hover);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(10, 26, 47, 0.12);
}

.card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 180, 0, 0.1);
  border-radius: var(--radius-sm);
  margin: 0 auto 20px;
  color: var(--gold);
}

.card__icon svg {
  width: 22px;
  height: 22px;
}

.card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
  color: var(--text-dark);
}

.card__text {
  font-size: 0.9rem;
  color: var(--text-dark-secondary);
  line-height: 1.65;
}

/* Visual bands */
.visual-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 500px;
  background: var(--surface);
}

.visual-band--reverse {
  background: var(--surface-alt);
}

.visual-band--reverse {
  direction: rtl;
}

.visual-band--reverse > * {
  direction: ltr;
}

.visual-band__image {
  position: relative;
  overflow: hidden;
  min-height: 400px;
}

.visual-band__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.visual-band:hover .visual-band__image img {
  transform: scale(1.03);
}

.visual-band__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 48px;
}

.visual-band__content .section__eyebrow,
.visual-band__content .section__title,
.visual-band__content .section__desc {
  text-align: left;
}

.visual-band__content .section__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.feature-list {
  margin-top: 24px;
}

.feature-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--text-dark-secondary);
}

.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 50%;
}

/* Equipment */
.equipment__header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 48px;
}

.equipment__header .section__header {
  text-align: left;
  margin: 0;
}

.equipment__visual {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.equipment__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 48px;
}

.tag {
  display: inline-block;
  padding: 8px 16px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-dark-secondary);
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 100px;
  transition: all var(--transition);
}

.tag:hover {
  color: var(--gold-dim);
  border-color: rgba(245, 180, 0, 0.5);
  background: rgba(245, 180, 0, 0.1);
}

.equipment__custom {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card-light);
  overflow: hidden;
}

.equipment__custom-img {
  height: 100%;
  min-height: 280px;
}

.equipment__custom-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.equipment__custom-text {
  padding: 40px;
}

.equipment__custom-text h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-dark);
}

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

/* Steps */
.steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 0;
  align-items: start;
}

.step {
  text-align: center;
  padding: 0 16px;
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--gold);
  background: rgba(245, 180, 0, 0.1);
  border: 1px solid rgba(245, 180, 0, 0.2);
  border-radius: 50%;
  margin-bottom: 20px;
}

.step__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.step__text {
  font-size: 0.85rem;
  color: var(--text-dark-secondary);
  line-height: 1.6;
}

.step__connector {
  width: 40px;
  height: 1px;
  background: var(--border-light-hover);
  margin-top: 24px;
}

/* Contact */
.contact__info {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.contact__details {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
}

.contact__cta {
  margin-top: 32px;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-dark-secondary);
  transition: color var(--transition);
}

.contact__link:hover {
  color: var(--gold-dim);
}

.contact__link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Footer */
.footer {
  background: #F5F6F8;
  color: var(--bg-deep);
  padding: 60px 0 40px;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer__logo {
  height: 60px;
  width: auto;
  mix-blend-mode: multiply;
}

.footer__tagline {
  font-size: 0.9rem;
  color: #5A6A82;
  margin-top: 8px;
}

.footer__nav {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer__nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: #3A4A62;
  transition: color var(--transition);
}

.footer__nav a:hover {
  color: var(--bg-deep);
}

.footer__copy {
  font-size: 0.8rem;
  color: #8A97AD;
  margin-top: 16px;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .step__connector {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
    padding: 80px 32px 32px;
    background: rgba(6, 11, 20, 0.97);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border);
    transition: right var(--transition);
  }

  .nav__links.open {
    right: 0;
  }

  .nav__toggle {
    display: flex;
    z-index: 1001;
  }

  .hero__content {
    padding: 120px 24px 80px;
  }

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

  .visual-band,
  .visual-band--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .visual-band__content {
    padding: 40px 24px;
  }

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

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

  .equipment__custom-text {
    padding: 32px 24px;
  }

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

  .trust__divider {
    display: none;
  }

  .trust__inner {
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }
}