/* ─────────────────────────────────────────
   ARGOS Patch Landing Page — styles
   ───────────────────────────────────────── */

/* CSS Custom Properties */
:root {
  --color-bg: #F8F7F4;
  --color-navy: #0A1628;
  --color-gold: #C8A97E;
  --color-gold-light: #E4C9A0;
  --color-text: #1A1A1A;
  --color-text-muted: #6B6B6B;
  --color-white: #FFFFFF;

  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  --section-pad: clamp(5rem, 10vw, 9rem);
  --max-width: 1200px;
}

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

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

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.65;
  overflow-x: hidden;
}

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

/* ─── Shared section primitives ─── */
.section {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.section--light {
  background: var(--color-bg);
}

.section--dark {
  background: var(--color-navy);
  color: var(--color-white);
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1.25rem;
}

.section-label--light {
  color: var(--color-gold-light);
}


/* ─────────────────────────────────────────
   SECTION 1: HERO (3D sensor reveal)
───────────────────────────────────────── */
.section--hero {
  background: var(--color-bg);
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  height: 100vh;
  min-height: unset; /* override shared .section min-height */
}

/* Three.js canvas fills the hero */
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

/* Phase 1 — top headline */
.hero__copy--top {
  position: absolute;
  top: 12vh;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 90%;
  max-width: 900px;
  pointer-events: none;
}

.hero__headline {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 5rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--color-text);
  margin: 0;
}

.hero-word {
  display: inline-block;
  margin-right: 0.2em;
  opacity: 0;
  transform: translateY(28px);
  will-change: transform, opacity;
}

/* Phase 2 — callout labels */
.hero__callouts {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.hero__callout {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  opacity: 0;
  will-change: opacity;
}

.hero__callout--tl {
  top: 28%;
  left: 8%;
  flex-direction: row-reverse;
}

.hero__callout--tr {
  top: 22%;
  right: 8%;
}

.hero__callout--bl {
  bottom: 28%;
  left: 8%;
  flex-direction: row-reverse;
}

.callout-line {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--color-gold);
  flex-shrink: 0;
}

.callout-text {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text);
  white-space: nowrap;
}

/* Phase 3 — bottom subline */
.hero__copy--bottom {
  position: absolute;
  bottom: 14vh;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  will-change: opacity;
}

.hero__subline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.2rem, 2.5vw, 2rem);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.hero__sub2 {
  font-family: var(--font-body);
  font-size: clamp(0.85rem, 1.5vw, 1.05rem);
  font-weight: 300;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
}

/* Scroll indicator */
.hero__scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  z-index: 5;
}

.scroll-hint-text {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.scroll-dot {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-gold);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.4); }
}


/* ─────────────────────────────────────────
   SECTION 2: THE PROBLEM
───────────────────────────────────────── */
.problem__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--section-pad) 2rem;
  width: 100%;
}

.problem__headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  color: var(--color-white);
  margin-bottom: 4rem;
  max-width: 700px;
  opacity: 0;
  transform: translateY(30px);
  will-change: transform, opacity;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 3rem;
}

.stat-block {
  opacity: 0;
  transform: translateY(40px);
  will-change: transform, opacity;
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 400;
  color: var(--color-gold);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.stat-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.5;
  max-width: 260px;
}


/* ─────────────────────────────────────────
   SECTION 3: THE INSIGHT
───────────────────────────────────────── */
.insight__inner {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--section-pad) 2rem;
  text-align: center;
}

.insight__quote {
  border: none;
  opacity: 0;
  transform: translateY(24px);
  will-change: transform, opacity;
}

.insight__quote p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  line-height: 1.5;
  color: var(--color-text);
}

.insight__cite {
  display: block;
  margin-top: 2rem;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  font-style: normal;
  opacity: 0;
  will-change: opacity;
}


/* ─────────────────────────────────────────
   SECTION 4: THE PRODUCT
───────────────────────────────────────── */
.section--product {
  overflow: hidden;
  min-height: 100vh;
  justify-content: flex-end;
  align-items: center;
}

.product__parallax-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.product__bg-image {
  width: 100%;
  height: 130%;
  object-fit: cover;
  object-position: center;
  transform: translateY(0);
  will-change: transform;
}

.product__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10,22,40,0.85) 0%,
    rgba(10,22,40,0.3) 55%,
    rgba(10,22,40,0.1) 100%
  );
}

.product__copy {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 1.5rem 8rem;
  opacity: 0;
  transform: translateY(20px);
  will-change: transform, opacity;
}

.product__name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 400;
  color: var(--color-gold);
  line-height: 1;
  margin-bottom: 1rem;
}

.product__tagline {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}


/* ─────────────────────────────────────────
   SECTION 5: HOW IT WORKS (pinned)
───────────────────────────────────────── */
.section--how {
  background: var(--color-bg);
  overflow: hidden;
  align-items: stretch;
}

.how__progress-bar-wrap {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(0,0,0,0.08);
  z-index: 10;
}

.how__progress-bar {
  height: 100%;
  background: var(--color-gold);
  width: 0%;
  transition: width 0.1s linear;
}

.how__steps-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  height: 100vh;
  position: relative;
}

.how__step {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(2rem, 6vw, 6rem);
  padding: 4rem 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.how__step.is-active {
  opacity: 1;
  pointer-events: auto;
}

.how__step-visual {
  flex: 0 0 auto;
  width: clamp(240px, 38vw, 480px);
}

.how__step-visual img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.12);
}

.how__step-copy {
  flex: 1;
  max-width: 440px;
}

.how__step-number {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin-bottom: 1rem;
}

.how__step-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 400;
  line-height: 1;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.how__step-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.how__step-labels {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 2.5rem;
  z-index: 10;
}

.how__label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(0,0,0,0.25);
  transition: color 0.3s ease;
}

.how__label--active {
  color: var(--color-gold);
}


/* ─────────────────────────────────────────
   SECTION 6: OPEN STANDARDS
───────────────────────────────────────── */
.open__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--section-pad) 2rem;
  display: flex;
  align-items: center;
  gap: clamp(3rem, 7vw, 8rem);
  width: 100%;
}

.open__image-col {
  flex: 0 0 auto;
  width: clamp(260px, 40vw, 480px);
  transform: translateX(60px);
  opacity: 0;
  will-change: transform, opacity;
}

.open__image {
  border-radius: 12px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.1);
}

.open__copy-col {
  flex: 1;
}

.open__headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 2.5rem;
  opacity: 0;
  transform: translateX(-30px);
  will-change: transform, opacity;
}

.open__bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.open__bullet {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: 1.05rem;
  color: var(--color-text);
  opacity: 0;
  transform: translateX(-30px);
  will-change: transform, opacity;
}

.bullet-icon {
  color: var(--color-gold);
  font-size: 0.6rem;
  margin-top: 0.55rem;
  flex-shrink: 0;
}


/* ─────────────────────────────────────────
   SECTION 7: FOR THE NURSES
───────────────────────────────────────── */
.section--nurses {
  overflow: hidden;
  text-align: center;
  align-items: center;
  justify-content: center;
}

.nurses__bg-wrap {
  position: absolute;
  inset: 0;
}

.nurses__bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: grayscale(30%);
  transform: scale(1.05);
}

.nurses__bg-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,22,40,0.72);
}

.nurses__copy {
  position: relative;
  z-index: 2;
  max-width: 740px;
  padding: var(--section-pad) 2rem;
  opacity: 0;
  transform: translateY(20px);
  will-change: transform, opacity;
}

.nurses__quote {
  border: none;
}

.nurses__quote p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  line-height: 1.45;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.nurses__cite {
  display: block;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--color-gold-light);
  font-style: normal;
}


/* ─────────────────────────────────────────
   SECTION 8: THE NUMBERS
───────────────────────────────────────── */
.section--numbers {
  background: var(--color-bg);
}

.numbers__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--section-pad) 2rem;
  text-align: center;
}

.numbers__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 3rem 2rem;
  margin-top: 3rem;
}

.number-block {
  opacity: 0;
  transform: translateY(30px);
  will-change: transform, opacity;
}

.number-stat {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 400;
  color: var(--color-navy);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.number-label {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}


/* ─────────────────────────────────────────
   SECTION 9: THE MARKET
───────────────────────────────────────── */
.section--market {
  min-height: 100vh;
}

.market__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--section-pad) 2rem;
  display: flex;
  align-items: center;
  gap: clamp(3rem, 7vw, 8rem);
  width: 100%;
}

.market__copy-col {
  flex: 1;
  opacity: 0;
  transform: translateY(30px);
  will-change: transform, opacity;
}

.market__headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 400;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.market__body {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.65);
  max-width: 500px;
  line-height: 1.75;
}

.market__image-col {
  flex: 0 0 auto;
  width: clamp(260px, 42vw, 540px);
  opacity: 0;
  transform: translateY(30px);
  will-change: transform, opacity;
}

.market__image {
  border-radius: 12px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.3);
}


/* ─────────────────────────────────────────
   SECTION 10: CTA
───────────────────────────────────────── */
.section--cta {
  min-height: 100vh;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
  padding: 0;
}

.cta__split {
  display: flex;
  flex: 1;
  min-height: 85vh;
}

.cta__half {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(3rem, 6vw, 6rem) 2rem;
}

.cta__half--hospital {
  background: var(--color-navy);
}

.cta__half--investor {
  background: var(--color-bg);
}

.cta__half-inner {
  max-width: 420px;
  width: 100%;
  opacity: 0;
  transform: translateY(30px);
  will-change: transform, opacity;
}

.cta__eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold-light);
  margin-bottom: 1rem;
}

.cta__eyebrow--dark {
  color: var(--color-gold);
}

.cta__headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 400;
  color: var(--color-white);
  margin-bottom: 1rem;
  line-height: 1.15;
}

.cta__headline--dark {
  color: var(--color-navy);
}

.cta__body {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.cta__body--dark {
  color: var(--color-text-muted);
}

.cta__form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cta__input {
  width: 100%;
  padding: 0.9rem 1.2rem;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.cta__input::placeholder {
  color: rgba(255,255,255,0.3);
}

.cta__input:focus {
  border-color: var(--color-gold);
}

.cta__input--dark {
  background: rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.12);
  color: var(--color-text);
}

.cta__input--dark::placeholder {
  color: rgba(0,0,0,0.3);
}

.cta__input--dark:focus {
  border-color: var(--color-navy);
}

.cta__btn {
  padding: 0.9rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.cta__btn:hover {
  transform: translateY(-1px);
  opacity: 0.9;
}

.cta__btn--hospital {
  background: var(--color-gold);
  color: var(--color-navy);
}

.cta__btn--investor {
  background: var(--color-navy);
  color: var(--color-white);
}

/* ─── Footer ─── */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  background: var(--color-navy);
}

.footer-wordmark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-gold);
  letter-spacing: 0.15em;
}

.footer-meta {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.04em;
}

/* ─────────────────────────────────────────
   RESPONSIVE ADJUSTMENTS
───────────────────────────────────────── */
@media (max-width: 768px) {
  .open__inner {
    flex-direction: column;
  }

  .open__image-col {
    width: 100%;
  }

  .market__inner {
    flex-direction: column;
  }

  .market__image-col {
    width: 100%;
  }

  .how__step {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
    padding: 3rem 1.5rem;
  }

  .how__step-visual {
    width: clamp(200px, 80vw, 360px);
  }

  .cta__split {
    flex-direction: column;
  }

  .cta__half {
    min-height: 50vh;
  }

  .site-footer {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .how__step-labels {
    gap: 1.25rem;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 16px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .numbers__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem 1.5rem;
  }

  .how__step-labels {
    gap: 0.8rem;
    flex-wrap: wrap;
    justify-content: center;
  }
}