/* ─────────────────────────────────────────
   MDRN Running Creator Page — Stylesheet v2
   Font: Inter (Graphik-equivalent)
   Palette: near-black, MDRN blue, off-white
───────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

/* ── CSS Custom Properties ── */
:root {
  --color-bg:        #0a0a0c;
  --color-bg-alt:    #0e0f14;
  --color-surface:   #13141a;
  --color-blue:      #1a3aff;
  --color-blue-mid:  #1c2d6e;
  --color-blue-dark: #0d1a3e;
  --color-off-white: #f0ede8;
  --color-white:     #ffffff;
  --color-muted:     #8a8d9a;
  --color-border:    rgba(255,255,255,0.08);
  --color-rule:      rgba(255,255,255,0.15);

  --font-family: 'Inter', 'Graphik', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --fw-light:    300;
  --fw-regular:  400;
  --fw-semibold: 600;
  --fw-bold:     700;

  --max-width: 1280px;
  --gutter:    clamp(1.5rem, 5vw, 5rem);
  --section-v: clamp(5rem, 10vw, 9rem);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --transition: 0.25s ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background-color: var(--color-bg);
  color: var(--color-off-white);
  font-family: var(--font-family);
  font-weight: var(--fw-light);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Utility ── */
.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.label {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font-family);
  font-size: 0.8125rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background-color: var(--color-blue);
  color: var(--color-white);
  border: 1px solid var(--color-blue);
}
.btn--primary:hover {
  background-color: #2d4fff;
  border-color: #2d4fff;
}
.btn--ghost {
  background-color: transparent;
  color: var(--color-off-white);
  border: 1px solid var(--color-rule);
}
.btn--ghost:hover { border-color: var(--color-off-white); }

/* ─────────────────────────────────────────
   NAV
───────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 10, 12, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav__inner {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo-img {
  height: 22px;
  width: auto;
  opacity: 0.92;
}

/* ─────────────────────────────────────────
   SECTION 1 — HERO
───────────────────────────────────────── */
.hero {
  padding-top: calc(64px + var(--section-v));
  padding-bottom: var(--section-v);
  padding-inline: var(--gutter);
  max-width: var(--max-width);
  margin-inline: auto;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.hero__eyebrow { margin-bottom: 1.5rem; }

.hero__headline {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: var(--fw-semibold);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.hero__sub-lead {
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  font-weight: var(--fw-semibold);
  color: var(--color-off-white);
  margin-bottom: 0.75rem;
}

.hero__sub-intro {
  font-size: 0.9375rem;
  font-weight: var(--fw-light);
  color: var(--color-muted);
  margin-bottom: 0.625rem;
}

.hero__bullets {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 2rem;
}
.hero__bullets li {
  font-size: 0.9375rem;
  font-weight: var(--fw-light);
  color: var(--color-off-white);
  padding-left: 1.25rem;
  position: relative;
}
.hero__bullets li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-blue);
  font-weight: var(--fw-bold);
}

/* Trust strip */
.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-rule);
}
.trust-item {
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.trust-check {
  color: var(--color-blue);
  font-size: 0.875rem;
}

.hero__image-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
}
.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* ─────────────────────────────────────────
   SECTION 2 — PROBLEM
───────────────────────────────────────── */
.problem {
  background-color: var(--color-bg-alt);
  padding-block: var(--section-v);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.problem__header {
  max-width: 720px;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.problem__title {
  font-size: clamp(1.875rem, 3.5vw, 3rem);
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: 1.5rem;
}
.problem__intro {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  font-weight: var(--fw-light);
  color: var(--color-off-white);
  margin-bottom: 1.25rem;
}
.problem__body {
  font-size: clamp(0.9375rem, 1.4vw, 1.0625rem);
  font-weight: var(--fw-light);
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}
.problem__emphasis {
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}
.problem__close {
  font-size: clamp(0.9375rem, 1.4vw, 1.0625rem);
  font-weight: var(--fw-light);
  color: var(--color-muted);
  line-height: 1.8;
}

/* Three stress factors */
.problem__factors {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
.factor { display: flex; flex-direction: column; gap: 1.5rem; }
.factor__img-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 3 / 4;
}
.factor__img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.5s ease;
}
.factor__img-wrap:hover .factor__img { transform: scale(1.03); }
.factor__text { padding-inline: 0.25rem; }
.factor__num {
  display: block;
  font-size: 0.625rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  color: var(--color-blue);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.factor__title {
  font-size: 1rem;
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.625rem;
}
.factor__desc {
  font-size: 0.875rem;
  font-weight: var(--fw-light);
  color: var(--color-muted);
  line-height: 1.7;
}

/* ─────────────────────────────────────────
   SECTION 3 — HyPrEn SYSTEM
───────────────────────────────────────── */
.system {
  padding-block: var(--section-v);
  background-color: var(--color-bg);
}
.system__header {
  max-width: 720px;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.system__title {
  font-size: clamp(1.875rem, 3.5vw, 3rem);
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: 0.875rem;
}
.system__sub {
  font-size: clamp(0.9375rem, 1.4vw, 1.0625rem);
  font-weight: var(--fw-light);
  color: var(--color-muted);
  line-height: 1.7;
}
.system__columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
.sys-col { display: flex; flex-direction: column; gap: 1.75rem; }
.sys-col__img-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background-color: var(--color-surface);
}
.sys-col__img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.5s ease;
}
.sys-col__img-wrap:hover .sys-col__img { transform: scale(1.03); }
.sys-col__text {
  padding-inline: 0.25rem;
  border-top: 1px solid var(--color-rule);
  padding-top: 1.5rem;
}
.sys-col__title {
  font-size: 0.8125rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 0.75rem;
}
.sys-col__desc {
  font-size: 0.9375rem;
  font-weight: var(--fw-light);
  color: var(--color-muted);
  line-height: 1.7;
}

/* ─────────────────────────────────────────
   SECTION 4 — CREATOR PROGRAM
───────────────────────────────────────── */
.creator {
  background-color: var(--color-bg-alt);
  padding-block: var(--section-v);
  border-top: 1px solid var(--color-border);
}
.creator__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 5vw, 6rem);
  align-items: start;
}

/* Gallery */
.creator__gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.creator__gallery-main {
  grid-column: 1;
  grid-row: 1 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 9 / 16;
}
.creator__gallery-side {
  grid-column: 2;
  grid-row: 1 / 3;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  height: 100%;
}
.creator__img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.5s ease;
}
.creator__img--main {
  border-radius: var(--radius-md);
  overflow: hidden;
}
.creator__img--side {
  border-radius: var(--radius-md);
  flex: 1;
  min-height: 0;
  object-fit: cover;
}

/* Text block */
.creator__content { padding-top: 1rem; }
.creator__title {
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.02em;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: 1.75rem;
}
.creator__body {
  font-size: clamp(0.9375rem, 1.4vw, 1.0625rem);
  font-weight: var(--fw-light);
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}
.creator__section-label {
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.875rem;
}
.creator__bullets {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-bottom: 0.875rem;
}
.creator__bullets li {
  font-size: 0.9375rem;
  font-weight: var(--fw-light);
  color: var(--color-off-white);
  padding-left: 1.25rem;
  position: relative;
}
.creator__bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-blue);
  font-weight: var(--fw-semibold);
}
.creator__usage {
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.65;
  margin-bottom: 2rem;
  font-style: italic;
}

/* Content type indicators */
.creator__content-types {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-rule);
}
.content-type {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1rem;
  align-items: start;
}
.content-type__label {
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-blue);
  padding-top: 0.125rem;
}
.content-type__desc {
  font-size: 0.875rem;
  font-weight: var(--fw-light);
  color: var(--color-muted);
  line-height: 1.65;
}

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
.footer {
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding-block: 2.5rem;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer__logo { height: 18px; width: auto; opacity: 0.5; }
.footer__copy { font-size: 0.75rem; color: var(--color-muted); letter-spacing: 0.04em; }
.footer__link {
  font-size: 0.75rem;
  color: var(--color-muted);
  letter-spacing: 0.04em;
  transition: color var(--transition);
}
.footer__link:hover { color: var(--color-off-white); }

/* ─────────────────────────────────────────
   RESPONSIVE — Tablet
───────────────────────────────────────── */
@media (max-width: 1024px) {
  .problem__factors,
  .system__columns {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .factor {
    flex-direction: row;
    align-items: flex-start;
    gap: 1.5rem;
  }
  .factor__img-wrap {
    flex: 0 0 200px;
    aspect-ratio: 1 / 1;
  }
  .factor__text { padding-top: 0.5rem; }
  .sys-col {
    flex-direction: row;
    align-items: flex-start;
    gap: 1.5rem;
  }
  .sys-col__img-wrap {
    flex: 0 0 200px;
    aspect-ratio: 1 / 1;
  }
  .sys-col__text {
    border-top: none;
    border-left: 1px solid var(--color-rule);
    padding-top: 0;
    padding-left: 1.5rem;
  }
}

/* ─────────────────────────────────────────
   RESPONSIVE — Mobile
───────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --gutter: 1.25rem;
    --section-v: 4rem;
  }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__image-wrap {
    aspect-ratio: 16 / 9;
    order: -1;
  }
  .trust-strip { gap: 0.625rem 1rem; }

  .factor { flex-direction: column; }
  .factor__img-wrap { flex: none; aspect-ratio: 16 / 9; }

  .sys-col { flex-direction: column; }
  .sys-col__img-wrap { flex: none; aspect-ratio: 16 / 9; }
  .sys-col__text {
    border-left: none;
    border-top: 1px solid var(--color-rule);
    padding-left: 0;
    padding-top: 1.25rem;
  }

  .creator__inner { grid-template-columns: 1fr; }
  .creator__gallery {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .creator__gallery-main {
    grid-column: 1 / 3;
    grid-row: 1;
    aspect-ratio: 4 / 3;
  }
  .creator__gallery-side {
    grid-column: 1 / 3;
    grid-row: 2;
    flex-direction: row;
    height: 220px;
  }
  .creator__img--side { flex: 1; height: 100%; }

  .content-type { grid-template-columns: 1fr; gap: 0.25rem; }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}