/* ============================================================
   SmartMeasure Pro — Design Tokens
   Blueprint / technical-drawing aesthetic: thin rules, crosshair
   marks, dashed dimension lines, monospace numerals for specs.
   ============================================================ */

:root {
  --white: #ffffff;
  --surface: #f4f7fb;
  --ink: #10151b;
  --ink-soft: #4a5568;
  --line: #d9e2ec;
  --blue: #1554c7;
  --blue-dim: #e8f0fd;
  --navy: #0b2545;
  --cyan: #22a6b3;

  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --max-w: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 2px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background-color: #d7e0ec;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 0.5em;
  font-weight: 600;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; max-width: 62ch; color: var(--ink-soft); }

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.mono { font-family: var(--font-mono); letter-spacing: 0.01em; }

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

section { padding: clamp(3rem, 8vw, 6rem) 0; }

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

.section--navy { background: var(--navy); color: var(--white); }
.section--navy h2, .section--navy h3 { color: var(--white); }
.section--navy p { color: #b9c6dc; }

.crosshair { position: relative; width: 14px; height: 14px; flex: none; }
.crosshair::before, .crosshair::after { content: ''; position: absolute; background: var(--cyan); }
.crosshair::before { width: 100%; height: 1.5px; top: 50%; left: 0; transform: translateY(-50%); }
.crosshair::after { height: 100%; width: 1.5px; left: 50%; top: 0; transform: translateX(-50%); }

.dim-divider { border: none; border-top: 1px dashed var(--line); margin: 0; }

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

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

.nav__brand {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.7rem;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav__brand:hover { text-decoration: none; }
.nav__brand .mono { color: var(--blue); font-size: 0.8rem; }

.nav__links { display: flex; gap: clamp(0.75rem, 2vw, 1.75rem); list-style: none; margin: 0; padding: 0; }

.nav__links a { color: var(--ink-soft); font-size: 0.92rem; font-weight: 500; }
.nav__links a:hover { color: var(--blue); text-decoration: none; }

.nav__cta {
  background: var(--blue);
  color: var(--white) !important;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
}
.nav__cta:hover { background: #0f419e; text-decoration: none; }

.nav__toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.nav__toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; }

@media (max-width: 860px) {
  .nav__links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 1rem var(--gutter) 1.5rem;
    display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__toggle { display: block; }
}

.hero {
  padding-top: clamp(3rem, 8vw, 5rem);
  padding-bottom: clamp(3rem, 8vw, 5rem);
  background: radial-gradient(circle at 15% 20%, rgba(21, 84, 199, 0.08), transparent 45%),
              radial-gradient(circle at 85% 80%, rgba(34, 166, 179, 0.07), transparent 45%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (max-width: 900px) { .hero__grid { grid-template-columns: 1fr; } }

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan);
  margin-bottom: 1.1rem;
}
.hero__eyebrow .mono { color: var(--ink-soft); }

.hero p.lead { font-size: 1.1rem; max-width: 46ch; }

.hero__actions { display: flex; gap: 1rem; margin-top: 1.75rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }

.btn--primary { background: var(--blue); color: var(--white); }
.btn--primary:hover { background: #0f419e; }

.btn--outline { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--outline:hover { border-color: var(--blue); color: var(--blue); }

.placeholder-note { font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-soft); text-align: center; padding: 1rem; }

.section-head { display: flex; align-items: flex-start; gap: 0.75rem; margin-bottom: 2.5rem; max-width: 60ch; }
.section-head .crosshair { margin-top: 0.5rem; }

.footer { padding: 2.5rem 0; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; font-size: 0.85rem; }
.footer .mono { color: #7c8aa3; }

/* ============================================================
   Carousel (used wherever a section has >1 image, or images + video)
   ============================================================ */

.carousel {
  position: relative;
  border: 1px solid var(--line);
  background: var(--surface);
  aspect-ratio: 4 / 3;

  overflow: hidden;
}

.carousel__track { display: flex; height: 100%; transition: transform 0.5s ease; }

.carousel__slide { flex: 0 0 100%; height: 100%; position: relative; }

.carousel__slide img, .carousel__slide video { width: 100%; height: 100%; object-fit: contain; }

.carousel__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.carousel__arrow:hover { background: var(--white); border-color: var(--blue); color: var(--blue); }
.carousel__arrow--prev { left: 0.6rem; }
.carousel__arrow--next { right: 0.6rem; }

.carousel__dots {
  position: absolute;
  bottom: 0.7rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.4rem;
  z-index: 2;
}
.carousel__dot { width: 7px; height: 7px; border-radius: 50%; background: rgba(16, 21, 27, 0.25); border: none; cursor: pointer; padding: 0; }
.carousel__dot.is-active { background: var(--blue); }

.carousel__tag {
  position: absolute;
  top: 0.7rem;
  left: 0.7rem;
  background: rgba(16, 21, 27, 0.75);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius);
  z-index: 2;
}

.media-frame { border: 1px solid var(--line); background: var(--surface); aspect-ratio: 4 / 3; overflow: hidden; }
.media-frame img, .media-frame video { width: 100%; height: 100%; object-fit: contain; }

.media-split {
  display: flex;
  gap: 1rem;
  align-items: stretch;
}
.media-split .carousel {
  flex: 1.2;
}
.video-frame-vertical {
  flex: 0.8;
  aspect-ratio: 9 / 16;
  border: 1px solid var(--line);
  background: var(--surface);
  overflow: hidden;
}
.video-frame-vertical video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

@media (max-width: 640px) {
  .media-split { flex-direction: column; }
}

.feature {
  display: grid;
  grid-template-columns: 0.9fr 1fr;
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: center;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  margin-bottom: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.feature:last-child { margin-bottom: 0; }
.feature:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(16, 21, 27, 0.1);
  border-color: var(--blue-dim);
}

.feature--reverse .feature__media { order: 2; }
.feature--reverse .feature__text { order: 1; }

@media (max-width: 860px) {
  .feature { grid-template-columns: 1fr; }
  .feature--reverse .feature__media, .feature--reverse .feature__text { order: initial; }
}

.feature__label { font-family: var(--font-mono); font-size: 1.2rem; color: var(--blue); margin-bottom: 0.5rem; display: block; font-weight: 620; }

.feature {
  position: relative;
  overflow: hidden;
}
.feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--blue);
  transform: scaleY(0);
  transition: transform 0.25s ease;
}
.feature:hover::before {
  transform: scaleY(1);
}

/* Hover effects */
.carousel, .media-frame {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.carousel:hover, .media-frame:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(16, 21, 27, 0.12);
}

.audience-card__media, .team-card__media {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.audience-card:hover .audience-card__media,
.team-card:hover .team-card__media {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(16, 21, 27, 0.12);
}

.tier {
  transition: transform 0.25s ease, background 0.25s ease;
}
.tier:hover {
  transform: translateY(-4px);
  background: #0f2d54;
}

.video-frame { border: 1px solid var(--line); background: var(--ink); aspect-ratio: 16 / 9; max-width: 900px; margin: 0 auto; overflow: hidden; }
.video-frame video { width: 100%; height: 100%; display: block; }

.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.12); }
@media (max-width: 780px) { .tiers { grid-template-columns: 1fr; } }

.tier { background: var(--navy); padding: 1.75rem; }
.tier__index { font-family: var(--font-mono); font-size: 0.75rem; color: var(--cyan); display: block; margin-bottom: 0.6rem; }
.tier h3 { color: var(--white); margin-bottom: 0.9rem; }
.tier ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.55rem; }
.tier li { font-size: 0.88rem; color: #c3cfe3; padding-left: 1rem; position: relative; }
.tier li::before { content: ''; position: absolute; left: 0; top: 0.5em; width: 5px; height: 1.5px; background: var(--cyan); }

.audience-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.75rem; }
.audience-card__media { aspect-ratio: 1 / 1; border: 1px solid var(--line); background: var(--surface); overflow: hidden; margin-bottom: 1rem; }
.audience-card__media img { width: 100%; height: 100%; object-fit: cover; }
.audience-card h3 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.audience-card p { font-size: 0.92rem; max-width: 40ch; }

.guide-columns { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 3.5rem); }
@media (max-width: 780px) { .guide-columns { grid-template-columns: 1fr; } }
.guide-col h3 { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1.1rem; }

.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: flex; flex-direction: column; gap: 1rem; }
.steps li { counter-increment: step; display: flex; gap: 0.9rem; align-items: baseline; }
.steps li::before {
  content: counter(step);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--blue);
  border: 1px solid var(--line);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}
.steps p { margin: 0; font-size: 0.94rem; }

.download-box {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: clamp(1.75rem, 4vw, 2.5rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.download-box__meta { display: flex; gap: 1.5rem; font-family: var(--font-mono); font-size: 0.8rem; color: var(--ink-soft); margin-top: 0.75rem; flex-wrap: wrap; }

.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; }
.team-card__media { aspect-ratio: 1 / 1; border: 1px solid var(--line); background: var(--white); overflow: hidden; margin-bottom: 0.9rem; }
.team-card__media img { width: 100%; height: 100%; object-fit: cover; }
.team-card h3 { font-size: 1rem; margin-bottom: 0.15rem; }
.team-card .role { font-family: var(--font-mono); font-size: 0.78rem; color: var(--blue); }

.guide-steps-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (max-width: 780px) {
  .guide-steps-list { grid-template-columns: 1fr; }
}

.guide-step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.guide-step:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 28px rgba(16, 21, 27, 0.1);
  border-color: var(--blue-dim);
}

.guide-step__num {
  flex: none;
  width: 44px;
  height: 44px;
  border: 1.5px solid var(--blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--blue);
}

.guide-step__title {
  color: var(--blue);
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.guide-step__desc {
  color: var(--ink);
  font-size: 0.95rem;
  margin: 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

@media (max-width: 780px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
}

.stat-card {
  background: var(--blue);
  border-radius: 8px;
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25);
}

.stat-card__old {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: line-through;
  font-size: 0.95rem;
}

.stat-card__arrow {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.1rem;
}

.stat-card__new {
  color: var(--white);
  font-weight: 700;
  font-size: 1.3rem;
  font-family: var(--font-head);
}

.hw-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}
@media (max-width: 900px) { .hw-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .hw-grid { grid-template-columns: repeat(2, 1fr); } }

.hw-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.hw-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 24px rgba(16, 21, 27, 0.1);
}
.hw-card__media {
  aspect-ratio: 1 / 1;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.75rem;
}
.hw-card__media img { width: 100%; height: 100%; object-fit: contain; }
.hw-card__name {
  display: block;
  font-size: 0.78rem;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.hw-card__desc { font-size: 0.85rem; margin: 0; }

.hw-spec-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}
@media (max-width: 700px) { .hw-spec-strip { grid-template-columns: 1fr 1fr; } }

.hw-spec {
  background: var(--white);
  padding: 1rem 1.25rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.hw-spec__label {
  display: block;
  font-size: 0.7rem;
  color: var(--cyan);
  margin-bottom: 0.3rem;
  font-weight: 600;
}

.explainer {
  background: var(--navy);
  color: var(--white);
}
.explainer__intro {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 3rem;
}
.explainer__intro h2 { color: var(--white); }
.explainer__intro p { color: #b9c6dc; margin: 0 auto; }

.explainer__flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 1.25rem;
  align-items: stretch;
}
@media (max-width: 900px) {
  .explainer__flow { grid-template-columns: 1fr; }
  .flow-arrow { display: none !important; }
}

.flow-step {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 1.75rem 1.5rem 3rem;
  transition: background 0.25s ease, transform 0.25s ease;
}
.flow-step:hover {
  background: rgba(255, 255, 255, 0.09);
  transform: translateY(-4px);
}
.flow-step__num {
  display: block;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 0.6rem;
}
.flow-step h3 { color: var(--white); font-size: 1.15rem; margin-bottom: 0.5rem; }
.flow-step p { color: #b9c6dc; font-size: 0.92rem; margin: 0; }
.flow-step__tag {
  position: absolute;
  bottom: 1.25rem;
  left: 1.5rem;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.45);
}

.flow-arrow {
  display: flex;
  align-items: center;
  color: var(--cyan);
  font-size: 1.5rem;
}

/* ===== Feature group sections ===== */
.feature-group {
  margin-bottom: 4rem;
}
.feature-group:last-child { margin-bottom: 0; }

.group-head {
  max-width: 640px;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 2px solid var(--blue);
}
.group-head__tag {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin-bottom: 0.6rem;
  font-weight: 600;
}
.group-head h2 { margin-bottom: 0.5rem; }
.group-head p { margin: 0; }

/* ===== Hardware capability cards ===== */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
@media (max-width: 900px) { .cap-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .cap-grid { grid-template-columns: 1fr; } }

.cap-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: 6px;
  padding: 1.35rem 1.25rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.cap-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(16, 21, 27, 0.1);
}
.cap-card__title {
  display: block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  color: var(--navy);
  margin-bottom: 0.4rem;
}
.cap-card p { font-size: 0.89rem; margin: 0; }

/* ===== Basic app strip ===== */
.basic-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 1.25rem;
}
@media (max-width: 780px) { .basic-strip { grid-template-columns: 1fr; } }

.basic-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1.35rem 1.25rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.basic-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(16, 21, 27, 0.1);
}
.basic-item__title {
  display: block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--blue);
  margin-bottom: 0.35rem;
}
.basic-item p { font-size: 0.88rem; margin: 0; }

/* ===== Spec list inside navy feature cards ===== */
.feature__specs {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.feature__specs li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  color: #b9c6dc;
}
.feature__specs li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 1.5px;
  background: var(--cyan);
}

.explainer__image {
  margin-top: 2.5rem;
  margin-bottom: 0;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.explainer__image img {
  width: 100%;
  height: auto;
  display: block;
}