/* ==========================================================================
   TUNE — components.css
   Header/nav, hero, marquee, service cards, form controls, footer
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Header & navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header-h);
  transition:
    background-color 0.3s var(--ease),
    box-shadow 0.3s var(--ease),
    height 0.3s var(--ease);
}

.site-header.is-scrolled {
  height: calc(var(--header-h) - 10px);
  background: rgba(255, 255, 255, 0.86);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow: inset 0 -1px 0 var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  position: relative;
  z-index: 60;
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-light {
  color: var(--paper);
}

.brand-dot {
  opacity: 0.45;
}

.nav-toggle {
  position: relative;
  z-index: 60;
  display: grid;
  place-content: center;
  gap: 7px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  transition: background-color 0.25s var(--ease);
}

.nav-toggle:hover {
  background: var(--surface);
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child {
  transform: translateY(4.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child {
  transform: translateY(-4.5px) rotate(-45deg);
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-link {
  position: relative;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--grey-700);
  padding-block: 6px;
  transition: color 0.2s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--ink);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
}

@media (max-width: 869px) {
  .nav-panel {
    position: fixed;
    inset: 0;
    z-index: 55;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0;
    padding: calc(var(--header-h) + 28px) clamp(20px, 6vw, 48px) 40px;
    background: var(--paper);
    transform: translateX(100%);
    visibility: hidden;
    transition:
      transform 0.38s var(--ease),
      visibility 0s linear 0.38s;
  }

  .nav-panel.is-open {
    transform: translateX(0);
    visibility: visible;
    transition-delay: 0s;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  .nav-list li {
    border-bottom: 1px solid var(--line);
  }

  .nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 4px;
    font-size: 1.55rem;
    font-weight: 750;
    letter-spacing: -0.01em;
    text-transform: uppercase;
    color: var(--ink);
  }

  .nav-link::after {
    content: none;
  }

  .nav-cta {
    margin-top: auto;
    align-self: stretch;
    padding-block: 17px;
  }
}

@media (min-width: 870px) {
  .nav-toggle {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   2. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100vh;
  min-height: 100svh;
  padding-top: calc(var(--header-h) + clamp(40px, 6vw, 80px));
  padding-bottom: clamp(56px, 8vw, 96px);
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.65;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 75% 42%, #000 25%, transparent 72%);
  mask-image: radial-gradient(ellipse 90% 80% at 75% 42%, #000 25%, transparent 72%);
}

.hero .h-display {
  max-width: 15ch;
  margin-top: 4px;
}

.hero .lead {
  margin-top: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 42px;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin-top: 36px;
}

.hero-proof li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--grey-700);
}

.hero-proof li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink);
}

/* --------------------------------------------------------------------------
   3. Marquee band
   -------------------------------------------------------------------------- */
.marquee {
  overflow: hidden;
  padding-block: 20px;
  background: var(--ink);
  color: var(--paper);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 30s linear infinite;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-group {
  display: flex;
  align-items: center;
  gap: 34px;
  padding-right: 34px;
}

.marquee-group span {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
}

.marquee-group i {
  font-style: normal;
  opacity: 0.4;
}

@keyframes marquee-scroll {
  to {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track {
    animation: none;
  }

  .marquee-track .marquee-group:last-child {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   4. Service cards
   -------------------------------------------------------------------------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(430px, 100%), 1fr));
  gap: 22px;
}

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(28px, 4vw, 46px);
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  transition:
    transform 0.35s var(--ease),
    box-shadow 0.35s var(--ease),
    border-color 0.35s var(--ease);
}

.service-card:hover,
.service-card:focus-within {
  transform: translateY(-5px);
  border-color: var(--line);
  box-shadow: var(--shadow-lg);
}

.card-num {
  position: absolute;
  top: clamp(28px, 4vw, 46px);
  right: clamp(28px, 4vw, 46px);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--grey-400);
}

.icon-tile {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  background: var(--paper);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition:
    background-color 0.35s var(--ease),
    color 0.35s var(--ease),
    transform 0.35s var(--ease);
}

.service-card:hover .icon-tile,
.service-card:focus-within .icon-tile {
  background: var(--ink);
  color: var(--paper);
  transform: scale(1.05);
}

.service-card h3 {
  margin-top: 26px;
  font-size: 1.32rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.service-card > p {
  margin-top: 12px;
  font-size: 0.96rem;
  line-height: 1.62;
  color: var(--grey-500);
}

.check-list {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--grey-700);
}

.check-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  margin-top: 3px;
  background: var(--ink);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4.5 12.5 5 5L19.5 7'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4.5 12.5 5 5L19.5 7'/%3E%3C/svg%3E") center / contain no-repeat;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin-top: auto;
  padding-top: 28px;
  font-size: 0.94rem;
  font-weight: 600;
}

.card-cta .arrow {
  transition: transform 0.3s var(--ease);
}

.card-cta:hover .arrow {
  transform: translateX(5px);
}

/* --------------------------------------------------------------------------
   5. Solutions (packaged offerings)
   -------------------------------------------------------------------------- */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 22px;
  align-items: stretch;
}

.solution-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 3.4vw, 38px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition:
    transform 0.35s var(--ease),
    box-shadow 0.35s var(--ease),
    border-color 0.35s var(--ease);
}

.solution-card:hover,
.solution-card:focus-within {
  transform: translateY(-5px);
  border-color: var(--ink);
  box-shadow: var(--shadow-lg);
}

.solution-tag {
  align-self: flex-start;
  margin-bottom: 20px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-500);
}

.solution-tag-recommended {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.solution-tag-feature {
  background: var(--paper);
  border-color: var(--ink);
  color: var(--ink);
}

.solution-card h3 {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.015em;
}

.solution-sub {
  margin-top: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--grey-400);
}

.solution-list {
  display: grid;
  gap: 11px;
  margin-top: 24px;
}

.solution-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--grey-700);
}

.solution-list li::before {
  content: "";
  position: absolute;
  top: 0.42em;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--ink);
}

.solution-card .card-cta {
  margin-top: auto;
  padding-top: 28px;
}

.solution-card-feature {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.solution-card-feature .solution-list li {
  color: var(--on-dark-muted);
}

.solution-card-feature .solution-list li::before {
  background: var(--paper);
}

.solutions-note {
  margin-top: clamp(32px, 5vw, 52px);
  text-align: center;
  font-size: 0.98rem;
  color: var(--grey-500);
}

.solutions-note a {
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  color: var(--ink);
}

.solutions-note a:hover {
  text-decoration-thickness: 2px;
}