/* ============================================================
   Aranha Turkey — Brazilian Jiu Jitsu
   Design System
   ============================================================ */

:root {
  --bg:          #0f0b0a;
  --bg-elev:    #161110;
  --ink:         #ede8e3;
  --ink-dim:    rgba(237, 232, 227, 0.62);
  --ink-faint:  rgba(237, 232, 227, 0.38);
  --line:       rgba(237, 232, 227, 0.14);
  --line-strong:rgba(237, 232, 227, 0.28);
  --accent:     #d7261e;
  --accent-soft:#a61813;

  --container:   1760px;
  --gutter:      clamp(20px, 2.2vw, 44px);

  --font-display: 'Archivo', 'Archivo Black', 'Helvetica Neue', sans-serif;
  --font-body:    'Inter', 'Helvetica Neue', Arial, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: 0; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }

/* ---------- Layout ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
section { position: relative; }

/* ---------- Typography ---------- */
.eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.rule {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}
.accent-line {
  width: 48px;
  height: 2px;
  background: var(--accent);
  border: 0;
  margin: 16px 0 24px;
}
h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.02; letter-spacing: -0.02em; }

.display {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: 75%;
  text-transform: uppercase;
  letter-spacing: -0.04em;
  line-height: 0.82;
}
.display-xl { font-size: clamp(80px, 18vw, 280px); }
.display-lg { font-size: clamp(56px, 10vw, 140px); }
.display-md { font-size: clamp(40px, 6vw, 84px); }

.lead {
  font-size: clamp(16px, 1.3vw, 18px);
  color: var(--ink-dim);
  max-width: 48ch;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  padding: 24px 0;
  mix-blend-mode: normal;
  transition: background-color .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(15, 11, 10, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}
.brand img { width: 48px; height: 48px; }
.nav ul {
  display: flex;
  gap: clamp(24px, 3.2vw, 52px);
}
.nav a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  padding: 8px 0;
  position: relative;
}
.nav a::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width .3s ease, left .3s ease;
}
.nav a:hover::after, .nav a.active::after { width: 100%; left: 0; }
.nav a.active { color: var(--accent); }

.nav-toggle {
  display: none;
  width: 34px; height: 34px;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--ink);
  margin: 5px auto;
  transition: transform .3s ease, opacity .3s ease;
}

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset: 0;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
    z-index: 40;
  }
  .nav.is-open { opacity: 1; pointer-events: auto; }
  .nav ul { flex-direction: column; text-align: center; gap: 28px; }
  .nav a { font-size: 18px; }
  .nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-toggle { z-index: 50; position: relative; }
}

/* ---------- Hero (home) ---------- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  z-index: 0;
}
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(15,11,10,0) 0%, rgba(15,11,10,0) 55%, rgba(15,11,10,0.55) 85%, rgba(15,11,10,0.92) 100%);
  z-index: 1;
}
.hero .container {
  position: relative;
  z-index: 2;
  padding-bottom: clamp(40px, 8vh, 96px);
  width: 100%;
}
.hero__meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  margin-bottom: 28px;
}
.hero__tag {
  max-width: 38ch;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
}
.hero__scroll {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero__scroll::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--ink-dim);
}
.hero__title {
  display: block;
  color: var(--ink);
}

/* Wordmark with subtle outline fallback */
.hero__title .line-1,
.hero__title .line-2 { display: block; }
.hero__title .line-1 { font-size: clamp(64px, 15vw, 220px); }
.hero__title .line-2 {
  font-size: clamp(38px, 6vw, 92px);
  color: var(--accent);
  letter-spacing: -0.02em;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink);
  transition: background-color .25s ease, border-color .25s ease, color .25s ease, transform .25s ease;
}
.btn:hover {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn--accent {
  border-color: var(--accent);
  color: var(--accent);
}
.btn--accent:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink);
}
.btn .arr {
  display: inline-block;
  transition: transform .25s ease;
}
.btn:hover .arr { transform: translateX(4px); }

/* ---------- Section scaffolding ---------- */
.section {
  padding: clamp(80px, 12vh, 140px) 0;
}
.section--tight { padding: clamp(60px, 9vh, 100px) 0; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  margin-bottom: clamp(40px, 6vh, 72px);
  flex-wrap: wrap;
}
.section-head .text { max-width: 60ch; }
.section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 7vw, 96px);
  text-transform: uppercase;
  letter-spacing: -0.03em;
  line-height: 0.92;
  color: var(--ink);
}
.section-title .accent { color: var(--accent); }

/* ---------- Home: Intro block ---------- */
.intro {
  padding: clamp(80px, 12vh, 140px) 0;
  border-bottom: 1px solid var(--line);
}
.intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: end;
}
.intro__headline {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5vw, 64px);
  text-transform: uppercase;
  letter-spacing: -0.03em;
  line-height: 1.02;
}
.intro__headline .accent { color: var(--accent); }
.intro__copy p { color: var(--ink-dim); font-size: 15px; margin: 0 0 14px; }
.intro__copy p:last-child { margin-bottom: 24px; }

@media (max-width: 800px) {
  .intro__grid { grid-template-columns: 1fr; }
}

/* ---------- Home: feature trio ---------- */
.trio {
  padding: clamp(60px, 9vh, 120px) 0;
  border-bottom: 1px solid var(--line);
}
.trio__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.trio__item {
  background: var(--bg);
  padding: clamp(24px, 4vw, 44px);
}
.trio__num {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 14px;
  letter-spacing: 0.2em;
}
.trio__h {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 2.4vw, 30px);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin: 10px 0 14px;
}
.trio__p { color: var(--ink-dim); font-size: 14px; line-height: 1.6; }

@media (max-width: 820px) {
  .trio__grid { grid-template-columns: 1fr; }
}

/* ---------- About page ---------- */
.page-hero {
  padding: clamp(140px, 22vh, 220px) 0 clamp(60px, 10vh, 100px);
  border-bottom: 1px solid var(--line);
}
.page-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(64px, 14vw, 220px);
  text-transform: uppercase;
  letter-spacing: -0.04em;
  line-height: 0.86;
}
.page-hero .eyebrow { margin-bottom: 16px; }
.page-hero__sub { color: var(--ink-dim); max-width: 56ch; margin-top: 28px; font-size: 16px; }

.content-block {
  padding: clamp(80px, 12vh, 140px) 0;
  border-bottom: 1px solid var(--line);
}
.content-block__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(32px, 6vw, 96px);
}
.content-block__label {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: clamp(26px, 3vw, 40px);
  letter-spacing: -0.02em;
  line-height: 1.04;
}
.content-block__body p {
  color: var(--ink);
  font-size: clamp(16px, 1.15vw, 18px);
  line-height: 1.65;
  margin: 0 0 18px;
}
.content-block__body p:last-child { margin-bottom: 0; }
.content-block__body em { color: var(--accent); font-style: normal; }
.content-block .meta {
  margin-top: 28px;
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.content-block .meta > div { min-width: 120px; }
.content-block .meta .k { font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 6px; }
.content-block .meta .v { font-size: 15px; color: var(--ink); }

@media (max-width: 820px) {
  .content-block__grid { grid-template-columns: 1fr; }
}

/* ---------- Instructors grid ---------- */
.instructors {
  padding: clamp(80px, 12vh, 140px) 0;
  border-bottom: 1px solid var(--line);
}
.inst-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.inst-card {
  background: var(--bg);
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: background .25s ease;
}
.inst-card:hover { background: var(--bg-elev); }
.inst-card__img {
  aspect-ratio: 4/5;
  overflow: hidden;
  background: #1a1513;
  position: relative;
}
.inst-card__img img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(12%) contrast(1.02);
  transition: transform .6s ease, filter .3s ease;
}
.inst-card:hover .inst-card__img img {
  transform: scale(1.04);
  filter: grayscale(0%) contrast(1.05);
}
.inst-card__body {
  padding: clamp(20px, 2vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--line);
}
.inst-card__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2vw, 26px);
  text-transform: uppercase;
  letter-spacing: -0.02em;
}
.inst-card__belt {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.belt {
  width: 28px;
  height: 8px;
  border-radius: 2px;
  position: relative;
  display: inline-block;
}
.belt::after {
  content: '';
  position: absolute;
  right: 4px; top: 0;
  width: 6px; height: 100%;
  background: rgba(0,0,0,0.65);
  border-left: 1px solid rgba(255,255,255,0.15);
  border-right: 1px solid rgba(255,255,255,0.15);
}
.belt--black  { background: #111; }
.belt--brown  { background: #6b3a1a; }
.belt--purple { background: #4b2a7a; }
.belt--blue   { background: #1e3a8a; }
.belt--white  { background: #f4f1ea; }
.belt--white::after { background: rgba(0,0,0,0.5); }

.inst-card__age { font-size: 13px; color: var(--ink-faint); }

@media (max-width: 900px) {
  .inst-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .inst-grid { grid-template-columns: 1fr; }
}

/* ---------- Classes: Schedule table ---------- */
.schedule {
  padding: clamp(80px, 12vh, 140px) 0;
  border-bottom: 1px solid var(--line);
}
.sched-group { margin-bottom: 72px; }
.sched-group:last-child { margin-bottom: 0; }
.sched-group h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3vw, 40px);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.sched-table {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--line);
}
.sched-table tr { border-bottom: 1px solid var(--line); }
.sched-table th, .sched-table td {
  text-align: left;
  padding: 20px 16px;
  font-size: 14px;
  vertical-align: middle;
}
.sched-table th {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
  padding-bottom: 16px;
}
.sched-table .day {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 18px;
  letter-spacing: -0.01em;
  width: 16%;
}
.sched-table .time {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  width: 14%;
  color: var(--ink);
}
.sched-table .cls { width: 40%; }
.sched-table .loc { width: 20%; color: var(--ink-dim); }
.sched-table .lvl {
  width: 10%;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  text-align: right;
}
.sched-table tr:hover td { background: rgba(237,232,227,0.02); }

@media (max-width: 740px) {
  .sched-table, .sched-table tbody, .sched-table tr, .sched-table td, .sched-table th { display: block; width: 100%; }
  .sched-table thead { display: none; }
  .sched-table tr { padding: 18px 0; }
  .sched-table td { padding: 3px 0; }
  .sched-table .day { font-size: 22px; margin-bottom: 8px; }
  .sched-table .lvl { text-align: left; }
}

/* ---------- Classes: Membership pricing ---------- */
.pricing {
  padding: clamp(80px, 12vh, 140px) 0;
  border-bottom: 1px solid var(--line);
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.price-card {
  border: 1px solid var(--line);
  padding: clamp(28px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: border-color .25s ease, transform .25s ease;
  background: var(--bg);
}
.price-card:hover { border-color: var(--line-strong); }
.price-card--featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(215,38,30,0.06) 0%, rgba(215,38,30,0) 70%);
  position: relative;
}
.price-card--featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -11px; left: 24px;
  background: var(--accent);
  color: var(--ink);
  padding: 4px 12px;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
}
.price-card__name {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.price-card__amount {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(44px, 5vw, 72px);
  line-height: 0.9;
  letter-spacing: -0.03em;
}
.price-card__amount sup {
  font-size: 0.4em;
  vertical-align: super;
  color: var(--ink-dim);
  font-weight: 700;
  margin-right: 4px;
}
.price-card__amount span {
  display: block;
  font-size: 12px;
  font-family: var(--font-body);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-top: 10px;
}
.price-card--featured .price-card__amount { color: var(--accent); }
.price-card ul { display: flex; flex-direction: column; gap: 10px; }
.price-card li {
  font-size: 14px;
  color: var(--ink);
  padding-left: 22px;
  position: relative;
}
.price-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 10px;
  width: 10px; height: 1px;
  background: var(--accent);
}
.price-card .btn { align-self: stretch; justify-content: center; }

@media (max-width: 900px) {
  .pricing-grid { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */
.footer {
  padding: clamp(72px, 10vh, 120px) 0 40px;
  background: var(--bg);
}
.footer__top {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--line);
}
.footer__brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 6vw, 72px);
  text-transform: uppercase;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin-bottom: 18px;
}
.footer__tag {
  color: var(--ink-dim);
  font-size: 14px;
  max-width: 36ch;
}
.footer__col h4 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 20px;
}
.footer__col p, .footer__col a {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.55;
}
.footer__col p { margin: 0 0 12px; }
.footer__col a { display: block; margin-bottom: 8px; transition: color .2s ease; }
.footer__col a:hover { color: var(--accent); }

.social {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}
.social a {
  width: 38px; height: 38px;
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: border-color .25s ease, color .25s ease, background .25s ease;
  margin: 0;
}
.social a:hover { border-color: var(--accent); color: var(--accent); }
.social svg { width: 14px; height: 14px; fill: currentColor; }

.map-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 8px;
}
.map-link::after {
  content: '→';
  transition: transform .25s ease;
}
.map-link:hover::after { transform: translateX(4px); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.1em;
  flex-wrap: wrap;
  gap: 20px;
}

@media (max-width: 900px) {
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .footer__top { grid-template-columns: 1fr; }
}

/* ---------- Utility ---------- */
.hidden { display: none !important; }
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}