/* ============================================================
   MineTrack — Landing Page Styles
   Design tokens aligned with the main frontend (mineral/amber theme)
   ============================================================ */

:root {
  /* Brand colors */
  --mt-color-primary: #f5a623;
  --mt-color-primary-hover: #ffb73d;
  --mt-color-primary-active: #d88e10;

  /* Surfaces */
  --mt-color-bg-base: #1c1e22;
  --mt-color-bg-elevated: #25282e;
  --mt-color-bg-overlay: #2e3239;

  /* Text */
  --mt-color-text-primary: #f4f5f7;
  --mt-color-text-secondary: #a8adb7;
  --mt-color-text-disabled: #5c6370;
  --mt-color-text-on-primary: #1c1e22;

  /* Strokes */
  --mt-color-border-subtle: #3a3f47;
  --mt-color-border-strong: #5c6370;

  /* Radii */
  --mt-radius-sm: 4px;
  --mt-radius-md: 8px;
  --mt-radius-lg: 12px;

  /* Spacing */
  --mt-space-1: 4px;
  --mt-space-2: 8px;
  --mt-space-3: 12px;
  --mt-space-4: 16px;
  --mt-space-6: 24px;
  --mt-space-8: 32px;
  --mt-space-12: 48px;
  --mt-space-16: 64px;

  /* Typography */
  --mt-font-display: "Montserrat", system-ui, sans-serif;
  --mt-font-body: "Roboto", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--mt-color-bg-base);
  color: var(--mt-color-text-primary);
  font-family: var(--mt-font-body);
  font-size: 15px;
  line-height: 1.6;
  scroll-behavior: smooth;
}

h1,
h2,
h3,
h4 {
  font-family: var(--mt-font-display);
  color: var(--mt-color-text-primary);
  margin: 0 0 var(--mt-space-4) 0;
  line-height: 1.2;
}

a {
  color: var(--mt-color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--mt-color-primary-hover);
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--mt-space-6);
}

/* ============================================================
   TOPBAR
   ============================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(28, 30, 34, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--mt-color-border-subtle);
}

.topbar__inner {
  display: flex;
  align-items: center;
  gap: var(--mt-space-6);
  padding: var(--mt-space-3) var(--mt-space-6);
  height: 60px;
}

.topbar__brand {
  font-family: var(--mt-font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--mt-color-primary);
}

.topbar__nav {
  display: flex;
  gap: var(--mt-space-6);
  flex: 1;
  margin-left: var(--mt-space-8);
}

.topbar__nav a {
  color: var(--mt-color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color 120ms ease;
}

.topbar__nav a:hover {
  color: var(--mt-color-text-primary);
}

.topbar__lang {
  display: flex;
  gap: var(--mt-space-1);
  border: 1px solid var(--mt-color-border-subtle);
  border-radius: var(--mt-radius-sm);
  overflow: hidden;
}

.lang-btn {
  background: transparent;
  color: var(--mt-color-text-secondary);
  border: none;
  padding: 6px 12px;
  cursor: pointer;
  font-family: var(--mt-font-body);
  font-size: 12px;
  font-weight: 600;
  transition: all 120ms ease;
}

.lang-btn:hover {
  color: var(--mt-color-text-primary);
}
.lang-btn.active {
  background: var(--mt-color-bg-overlay);
  color: var(--mt-color-text-primary);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--mt-radius-md);
  font-family: var(--mt-font-display);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 150ms ease;
}

.btn--primary {
  background: var(--mt-color-primary);
  color: var(--mt-color-text-on-primary);
}

.btn--primary:hover {
  background: var(--mt-color-primary-hover);
  color: var(--mt-color-text-on-primary);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--mt-color-primary);
  border-color: var(--mt-color-primary);
}

.btn--ghost:hover {
  background: var(--mt-color-primary);
  color: var(--mt-color-text-on-primary);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: var(--mt-space-16) 0;
  background:
    radial-gradient(
      ellipse at top right,
      rgba(245, 166, 35, 0.12),
      transparent 50%
    ),
    radial-gradient(
      ellipse at bottom left,
      rgba(245, 166, 35, 0.06),
      transparent 60%
    ),
    var(--mt-color-bg-base);
  text-align: center;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  max-width: 900px;
  margin: 0 auto var(--mt-space-6);
  background: linear-gradient(
    135deg,
    var(--mt-color-text-primary),
    var(--mt-color-primary)
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--mt-color-text-secondary);
  max-width: 720px;
  margin: 0 auto var(--mt-space-8);
}

.hero__actions {
  display: flex;
  gap: var(--mt-space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   SECTIONS (generic)
   ============================================================ */
section {
  padding: var(--mt-space-16) 0;
}

section:nth-child(even) {
  background: var(--mt-color-bg-elevated);
}

.section__title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  text-align: center;
  margin-bottom: var(--mt-space-12);
}

.section__lead {
  max-width: 760px;
  margin: 0 auto var(--mt-space-8);
  text-align: center;
  color: var(--mt-color-text-secondary);
  font-size: 17px;
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--mt-space-8);
  max-width: 1000px;
  margin: 0 auto;
}

.how__card {
  background: var(--mt-color-bg-base);
  padding: var(--mt-space-8);
  border-radius: var(--mt-radius-lg);
  border: 1px solid var(--mt-color-border-subtle);
}

.how__badge {
  display: inline-block;
  background: var(--mt-color-primary);
  color: var(--mt-color-text-on-primary);
  padding: 4px 12px;
  border-radius: var(--mt-radius-sm);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--mt-space-6);
}

.how__badge--alt {
  background: var(--mt-color-bg-overlay);
  color: var(--mt-color-primary);
  border: 1px solid var(--mt-color-primary);
}

.how__steps {
  margin: 0;
  padding-left: var(--mt-space-4);
}

.how__steps li {
  margin-bottom: var(--mt-space-3);
  color: var(--mt-color-text-secondary);
}

.how__steps li::marker {
  color: var(--mt-color-primary);
}

/* ============================================================
   FEATURES
   ============================================================ */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--mt-space-6);
}

.feature {
  background: var(--mt-color-bg-base);
  padding: var(--mt-space-6);
  border-radius: var(--mt-radius-md);
  border: 1px solid var(--mt-color-border-subtle);
  transition:
    transform 150ms ease,
    border-color 150ms ease;
}

.feature:hover {
  transform: translateY(-4px);
  border-color: var(--mt-color-primary);
}

.feature__icon {
  color: var(--mt-color-primary);
  font-size: 28px;
  margin-bottom: var(--mt-space-3);
  display: block;
}

.feature h3 {
  font-size: 18px;
  margin-bottom: var(--mt-space-2);
}

.feature p {
  color: var(--mt-color-text-secondary);
  font-size: 14px;
  margin: 0;
}

/* ============================================================
   PLANS
   ============================================================ */
.plans__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--mt-space-6);
  max-width: 980px;
  margin: 0 auto;
}

.plan__card {
  background: var(--mt-color-bg-base);
  border: 1px solid var(--mt-color-border-subtle);
  border-radius: var(--mt-radius-lg);
  padding: var(--mt-space-8);
  transition:
    border-color 150ms ease,
    transform 150ms ease;
}

.plan__card:hover {
  border-color: var(--mt-color-primary);
  transform: translateY(-4px);
}

.plan__card--featured {
  border-color: var(--mt-color-primary);
  box-shadow: 0 0 0 1px rgba(245, 166, 35, 0.2);
}

.plan__badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--mt-color-text-on-primary);
  background: var(--mt-color-primary);
  margin-bottom: var(--mt-space-4);
}

.plan__badge--alt {
  background: var(--mt-color-bg-overlay);
  color: var(--mt-color-primary);
  border: 1px solid var(--mt-color-primary);
}

.plan__price {
  margin: 0 0 var(--mt-space-6);
  font-family: var(--mt-font-display);
  font-weight: 700;
  font-size: 44px;
  line-height: 1;
}

.plan__currency {
  font-size: 24px;
  color: var(--mt-color-text-secondary);
  margin-right: var(--mt-space-1);
}

.plan__period {
  font-size: 18px;
  color: var(--mt-color-text-secondary);
  margin-left: var(--mt-space-1);
}

.plan__features {
  margin: 0 0 var(--mt-space-8);
  padding-left: 20px;
}

.plan__features li {
  color: var(--mt-color-text-secondary);
  margin-bottom: var(--mt-space-3);
}

.plan__features li::marker {
  color: var(--mt-color-primary);
}

.plan__cta {
  width: 100%;
}

/* ============================================================
   TEAM
   ============================================================ */
.team__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--mt-space-6);
  margin-top: var(--mt-space-12);
}

.team__card {
  text-align: center;
  padding: var(--mt-space-6);
}

.team__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--mt-color-primary),
    var(--mt-color-primary-active)
  );
  color: var(--mt-color-text-on-primary);
  font-family: var(--mt-font-display);
  font-weight: 700;
  font-size: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--mt-space-4);
}

.team__avatar--photo-slot {
  background: var(--mt-color-bg-overlay);
  border: 1px dashed var(--mt-color-border-strong);
  color: var(--mt-color-text-secondary);
  font-size: 11px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  padding: var(--mt-space-2);
}

.team__card h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.team__role {
  color: var(--mt-color-text-secondary);
  font-size: 13px;
  margin: 0;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq__list {
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  background: var(--mt-color-bg-base);
  border: 1px solid var(--mt-color-border-subtle);
  border-radius: var(--mt-radius-md);
  margin-bottom: var(--mt-space-3);
  padding: var(--mt-space-4) var(--mt-space-6);
  transition: border-color 150ms ease;
}

.faq__item[open] {
  border-color: var(--mt-color-primary);
}

.faq__item summary {
  cursor: pointer;
  font-weight: 600;
  font-family: var(--mt-font-display);
  color: var(--mt-color-text-primary);
  outline: none;
  list-style: none;
  position: relative;
  padding-right: var(--mt-space-6);
}

.faq__item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  font-size: 22px;
  color: var(--mt-color-primary);
  transition: transform 150ms ease;
}

.faq__item[open] summary::after {
  content: "−";
}

.faq__item p {
  margin: var(--mt-space-3) 0 0;
  color: var(--mt-color-text-secondary);
}

/* ============================================================
   CTA
   ============================================================ */
.cta {
  background: linear-gradient(
    135deg,
    var(--mt-color-bg-elevated),
    var(--mt-color-bg-overlay)
  ) !important;
  text-align: center;
}

.cta__inner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
}

.cta__inner p {
  color: var(--mt-color-text-secondary);
  font-size: 17px;
  margin-bottom: var(--mt-space-8);
}

.cta__actions {
  display: flex;
  gap: var(--mt-space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--mt-color-bg-overlay);
  padding: var(--mt-space-12) 0 var(--mt-space-6);
  border-top: 1px solid var(--mt-color-border-subtle);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--mt-space-8);
  margin-bottom: var(--mt-space-8);
}

.footer__brand {
  font-family: var(--mt-font-display);
  font-weight: 700;
  font-size: 24px;
  color: var(--mt-color-primary);
  margin-bottom: var(--mt-space-2);
}

.footer__tagline {
  color: var(--mt-color-text-secondary);
  font-style: italic;
  margin: 0;
}

.footer__col h4 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--mt-color-text-primary);
}

.footer__col p {
  color: var(--mt-color-text-secondary);
  font-size: 14px;
  margin: var(--mt-space-2) 0;
}

.footer__col i {
  margin-right: var(--mt-space-2);
  color: var(--mt-color-primary);
}

.footer__social {
  display: flex;
  gap: var(--mt-space-3);
}

.footer__social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--mt-color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mt-color-text-secondary);
  transition: all 150ms ease;
}

.footer__social a:hover {
  border-color: var(--mt-color-primary);
  color: var(--mt-color-primary);
  transform: translateY(-2px);
}

.footer__bottom {
  border-top: 1px solid var(--mt-color-border-subtle);
  padding-top: var(--mt-space-6);
  display: flex;
  justify-content: space-between;
  color: var(--mt-color-text-disabled);
  font-size: 12px;
  flex-wrap: wrap;
  gap: var(--mt-space-2);
}

.footer__bottom p {
  margin: 0;
}

.team__avatar--photo {
  overflow: hidden;
  padding: 0;
  background: none;
}

.team__avatar--photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .topbar__nav {
    display: none;
  }

  .how__grid {
    grid-template-columns: 1fr;
  }
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .plans__grid {
    grid-template-columns: 1fr;
  }
  .team__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer__inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  section {
    padding: var(--mt-space-12) 0;
  }

  .features__grid {
    grid-template-columns: 1fr;
  }
  .team__grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero__actions,
  .cta__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}