/* ============================================
   RESUme LP — "Biotech Editorial" Design System
   Nature journal × Aesop clean aesthetics
   ============================================ */

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

/* --- Design Tokens --- */
:root {
  /* Brand Greens */
  --rm-green: #1B5E4B;
  --rm-green-dark: #0F3D31;
  --rm-green-deep: #0A2A21;
  --rm-green-light: #2A7A62;
  --rm-green-pale: #EDF5F1;
  --rm-green-mist: #F4F9F7;

  /* Accent */
  --rm-gold: #C4A24E;
  --rm-gold-light: #E2CC7A;
  --rm-red: #C53030;

  /* Neutrals */
  --rm-black: #0C0C0C;
  --rm-gray-900: #1A1A1A;
  --rm-gray-800: #2D2D2D;
  --rm-gray-600: #555;
  --rm-gray-400: #999;
  --rm-gray-200: #E0E0DE;
  --rm-gray-100: #F0F0EE;
  --rm-white: #FFFFFF;
  --rm-offwhite: #FAFAF8;

  /* Typography */
  --font-display: 'Sora', sans-serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --section-py: clamp(64px, 10vw, 120px);
  --section-px: clamp(16px, 4vw, 32px);
  --max-w: 1140px;
  --max-w-narrow: 800px;

  /* Radius */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-pill: 9999px;

  /* Shadows */
  --sh-sm: 0 1px 2px rgba(0,0,0,.06);
  --sh-md: 0 4px 16px rgba(0,0,0,.08);
  --sh-lg: 0 12px 40px rgba(0,0,0,.1);
  --sh-green: 0 8px 32px rgba(27,94,75,.18);

  /* Ease */
  --ease: cubic-bezier(.4,0,.2,1);
  --ease-out: cubic-bezier(0,.55,.45,1);
}

/* --- Base --- */
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.85;
  color: var(--rm-gray-900);
  background: var(--rm-offwhite);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--rm-green); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--rm-green-light); }

/* --- Typography --- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.25; color: var(--rm-black); letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; }
h2 { font-size: clamp(1.625rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.5rem); }
h4 { font-size: 1.0625rem; }

.label {
  font-family: var(--font-mono);
  font-size: .6875rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--rm-green);
  display: block;
  margin-bottom: 12px;
}

.subtitle {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--rm-gray-600);
  line-height: 1.9;
  max-width: 640px;
}

/* --- Layout --- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--section-px); }
.container--narrow { max-width: var(--max-w-narrow); }

.section { padding: var(--section-py) 0; position: relative; }

.section--green {
  background: var(--rm-green);
  color: var(--rm-white);
}
.section--green h2, .section--green h3, .section--green h4, .section--green .label { color: var(--rm-white); }
.section--green .label { color: var(--rm-gold-light); }
.section--green .subtitle { color: rgba(255,255,255,.75); }

.section--dark {
  background: var(--rm-gray-900);
  color: var(--rm-white);
}

.section--pale { background: var(--rm-green-mist); }
.section--mint { background: var(--rm-green-pale); }

.section-header { text-align: center; margin-bottom: clamp(40px, 6vw, 64px); }
.section-header .subtitle { margin: 0 auto; }

/* Grid */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2,1fr); }
.grid--3 { grid-template-columns: repeat(3,1fr); }
.grid--4 { grid-template-columns: repeat(4,1fr); }
.grid--5 { grid-template-columns: repeat(5,1fr); }

/* --- Green Bar (PDF-style section header) --- */
.green-bar {
  background: var(--rm-green);
  color: var(--rm-white);
  text-align: center;
  padding: 10px 24px;
  font-family: var(--font-display);
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .08em;
  margin-bottom: 48px;
}

/* --- Accent Line --- */
.accent-line {
  width: 48px;
  height: 2px;
  background: var(--rm-green);
  margin-bottom: 20px;
}
.section-header .accent-line { margin: 0 auto 20px; }
.section--green .accent-line { background: var(--rm-gold); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 36px;
  font-family: var(--font-display);
  font-size: .9375rem;
  font-weight: 600;
  line-height: 1;
  border: none;
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: all .3s var(--ease);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--rm-green);
  color: var(--rm-white);
  box-shadow: var(--sh-green);
}
.btn--primary:hover {
  background: var(--rm-green-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(27,94,75,.25);
  color: var(--rm-white);
}

.btn--gold {
  background: linear-gradient(135deg, var(--rm-gold), #D4B65E);
  color: var(--rm-white);
  box-shadow: 0 6px 24px rgba(196,162,78,.25);
}
.btn--gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(196,162,78,.35);
  color: var(--rm-white);
}

.btn--outline {
  background: transparent;
  color: var(--rm-green);
  border: 1.5px solid var(--rm-green);
}
.btn--outline:hover { background: var(--rm-green-pale); color: var(--rm-green); }

.btn--ghost {
  background: transparent;
  color: var(--rm-white);
  border: 1.5px solid rgba(255,255,255,.4);
}
.btn--ghost:hover { border-color: var(--rm-white); background: rgba(255,255,255,.08); color: var(--rm-white); }

.btn--lg { padding: 18px 44px; font-size: 1rem; }
.btn--sm { padding: 10px 24px; font-size: .8125rem; }

/* --- Cards --- */
.card {
  background: var(--rm-white);
  border: 1px solid var(--rm-gray-200);
  border-radius: var(--r-lg);
  padding: 32px;
  transition: all .35s var(--ease);
}
.card:hover { box-shadow: var(--sh-md); transform: translateY(-3px); }

.card--featured {
  border-color: var(--rm-green);
  border-width: 2px;
  position: relative;
  box-shadow: var(--sh-green);
}
.card--featured::before {
  content: attr(data-badge);
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--rm-green);
  color: var(--rm-white);
  font-family: var(--font-display);
  font-size: .6875rem;
  font-weight: 700;
  padding: 4px 20px;
  border-radius: var(--r-pill);
  letter-spacing: .05em;
}

/* --- Stats --- */
.stat { text-align: center; padding: 24px 16px; }
.stat__number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1;
  color: var(--rm-green);
}
.stat__unit { font-size: 1.25rem; font-weight: 700; }
.stat__label { font-size: .8125rem; color: var(--rm-gray-600); margin-top: 6px; line-height: 1.4; }

/* --- Pain Stat Cards (with bg image) --- */
.pain-card {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  padding: 40px 24px;
  text-align: center;
  color: var(--rm-white);
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.pain-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.55);
  z-index: 1;
}
.pain-card > * { position: relative; z-index: 2; }
.pain-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.pain-card__number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 4px;
}
.pain-card__unit { font-size: 1.25rem; font-weight: 700; }
.pain-card__label { font-size: .8125rem; opacity: .85; margin-top: 8px; line-height: 1.5; }

/* --- Steps --- */
.steps { display: flex; gap: 16px; counter-reset: step; }
.step {
  flex: 1;
  text-align: center;
  counter-increment: step;
  padding: 24px 12px;
}
.step::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  background: var(--rm-green);
  color: var(--rm-white);
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  border-radius: 50%;
}
.step__title { font-family: var(--font-display); font-weight: 600; font-size: .9375rem; margin-bottom: 6px; }
.step__desc { font-size: .8125rem; color: var(--rm-gray-600); line-height: 1.6; }

/* Arrow between steps */
.step:not(:last-child) { position: relative; }
.step:not(:last-child)::after {
  content: '→';
  position: absolute;
  top: 34px;
  right: -14px;
  font-size: 1.125rem;
  color: var(--rm-gray-400);
}

/* --- Product Image --- */
.product-img {
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--sh-lg);
}
.product-img img { width: 100%; height: 100%; object-fit: cover; }

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,250,248,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,0,0,.05);
  padding: 0 var(--section-px);
}
.site-header__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.site-header__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--rm-green);
  letter-spacing: -.02em;
}
.site-header__logo span { color: var(--rm-gray-400); font-weight: 400; font-size: .6875rem; margin-left: 8px; letter-spacing: 0; }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav__link {
  font-family: var(--font-display);
  font-size: .8125rem;
  font-weight: 500;
  color: var(--rm-gray-600);
  letter-spacing: .01em;
}
.site-nav__link:hover { color: var(--rm-green); }

.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.menu-toggle span { display: block; width: 22px; height: 1.5px; background: var(--rm-black); margin: 5px 0; transition: all .3s var(--ease); }

/* --- Hero --- */
.hero {
  position: relative;
  padding: clamp(100px, 14vw, 160px) 0 clamp(60px, 8vw, 100px);
  overflow: hidden;
}
.hero--brand {
  background: var(--rm-green-deep);
  color: var(--rm-white);
}
.hero--corporate {
  background: linear-gradient(165deg, #0C1A14 0%, var(--rm-green-deep) 40%, var(--rm-green) 100%);
  color: var(--rm-white);
}

/* DNA helix decoration */
.hero__deco {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .12;
  background:
    radial-gradient(ellipse 600px 400px at 70% 35%, var(--rm-gold) 0%, transparent 70%),
    radial-gradient(ellipse 500px 500px at 20% 65%, var(--rm-green-light) 0%, transparent 60%);
}

/* Subtle grid texture */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .03;
  background-image:
    linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 80px 80px;
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero__content { max-width: 560px; }
.hero h1, .hero h2, .hero h3, .hero h4 { color: var(--rm-white); }

.hero__catch {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -.02em;
  color: var(--rm-white);
  text-shadow: 0 2px 16px rgba(0,0,0,.3);
}
.hero__sub {
  font-size: clamp(.9375rem, 1.2vw, 1.0625rem);
  line-height: 1.9;
  opacity: .92;
  margin-bottom: 32px;
  text-shadow: 0 1px 8px rgba(0,0,0,.2);
}
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero__tags { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.hero__tag {
  font-family: var(--font-display);
  font-size: .6875rem;
  font-weight: 600;
  padding: 6px 16px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: var(--r-pill);
  color: var(--rm-white);
  letter-spacing: .02em;
  backdrop-filter: blur(4px);
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero__visual img {
  max-height: 440px;
  width: auto;
  border-radius: var(--r-xl);
  box-shadow: 0 24px 64px rgba(0,0,0,.4);
  border: 1px solid rgba(255,255,255,.08);
}

/* --- Pricing --- */
.pricing-card { text-align: center; padding: 40px 24px; }
.pricing-card__name { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; margin-bottom: 2px; }
.pricing-card__target { font-size: .8125rem; color: var(--rm-gray-600); margin-bottom: 24px; }
.pricing-card__price {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--rm-green);
  line-height: 1;
}
.pricing-card__unit { font-size: .8125rem; color: var(--rm-gray-600); margin-bottom: 24px; margin-top: 4px; }

.pricing-card__features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
}
.pricing-card__features li {
  padding: 10px 0;
  font-size: .875rem;
  border-bottom: 1px solid var(--rm-gray-100);
  padding-left: 28px;
  position: relative;
  line-height: 1.5;
}
.pricing-card__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--rm-green);
  font-weight: 700;
}

/* --- ROI --- */
.roi-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
}
.roi-arrow {
  font-size: 2rem;
  color: var(--rm-gold);
}

/* --- Media Logos --- */
.media-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 40px;
}
.media-logos img {
  height: 36px;
  width: auto;
  filter: grayscale(100%);
  opacity: .5;
  transition: all .3s var(--ease);
}
.media-logos img:hover { filter: none; opacity: 1; }

/* --- Form --- */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: .8125rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--rm-gray-800);
}
.form-group .required { color: var(--rm-red); font-size: .6875rem; margin-left: 4px; }

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: .9375rem;
  line-height: 1.5;
  border: 1px solid var(--rm-gray-200);
  border-radius: var(--r-md);
  background: var(--rm-white);
  transition: border-color .2s, box-shadow .2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--rm-green);
  box-shadow: 0 0 0 3px rgba(27,94,75,.1);
}
.form-textarea { resize: vertical; min-height: 100px; }

/* --- Footer --- */
.site-footer {
  background: var(--rm-green-deep);
  color: rgba(255,255,255,.65);
  padding: 48px 0 24px;
}
.site-footer__inner { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--section-px); }
.site-footer__top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-footer__brand { font-family: var(--font-display); font-weight: 800; font-size: 1.125rem; color: var(--rm-white); margin-bottom: 6px; }
.site-footer__links { display: flex; gap: 20px; flex-wrap: wrap; }
.site-footer__links a { color: rgba(255,255,255,.5); font-size: .75rem; }
.site-footer__links a:hover { color: var(--rm-white); }
.site-footer__disclaimer { font-size: .6875rem; line-height: 1.7; color: rgba(255,255,255,.3); margin-bottom: 24px; max-width: 700px; }
.site-footer__copy { font-size: .6875rem; color: rgba(255,255,255,.2); text-align: center; }

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* --- Responsive --- */
@media (max-width: 1023px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .grid--3 { grid-template-columns: 1fr 1fr; }
  .grid--4 { grid-template-columns: 1fr 1fr; }
  .grid--5 { grid-template-columns: repeat(3,1fr); }
  .roi-grid { grid-template-columns: 1fr; text-align: center; }
  .roi-arrow { transform: rotate(90deg); margin: 0 auto; }
}

@media (max-width: 767px) {
  .hero { padding: clamp(80px, 12vw, 100px) 0 60px; }
  .hero__catch { font-size: 1.75rem; }
  .grid--2, .grid--3, .grid--4, .grid--5 { grid-template-columns: 1fr; }
  .steps { flex-direction: column; gap: 8px; }
  .step:not(:last-child)::after { display: none; }
  .hero__actions { flex-direction: column; }
  .hero__tags { flex-wrap: wrap; }
  .site-nav { display: none; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: var(--rm-white); padding: 24px; border-bottom: 1px solid var(--rm-gray-200); box-shadow: var(--sh-md); gap: 16px; }
  .site-nav.is-open { display: flex; }
  .menu-toggle { display: block; }
  .site-footer__top { flex-direction: column; }
  .site-footer__links { flex-direction: column; gap: 10px; }
  .pain-card { min-height: 160px; padding: 32px 20px; }
}