/* ============================================================
   Project Brahmagupta — Compile-style one-pager
   Inspired by cursor.com/compile
   Light theme, type-driven, generous whitespace
   ============================================================ */

:root {
  /* —— matched to cursor.com/compile —— */
  --bg: #F7F7F4;
  --bg-card: #F2F1ED;
  --bg-card-hover: #EBEAE5;

  --text: #26251E;
  --text-sec: #3B3A33;
  --text-tertiary: #6D6B5E;
  --text-muted: #9A9588;
  --border: #DEDDD5;
  --border-strong: #C8C5B5;
  --accent: #F54E00;
  --accent-soft: #FF6A1F;

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --serif: "EB Garamond", "Iowan Old Style", Georgia, serif;
  --display: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
  --deva: "Noto Sans Devanagari", "Shobhika", "Tiro Devanagari Sanskrit", sans-serif;

  /* —— cursor type scale —— */
  --text-2xl: 4.5rem;       /* 72px */
  --text-xl: 3.25rem;       /* 52px */
  --text-lg: 2.25rem;       /* 36px */
  --text-md: 1.375rem;      /* 22px */
  --text-md-sm: 1.125rem;   /* 18px */
  --text-base: 1rem;
  --text-sm: 0.875rem;
  --text-xs: 0.75rem;
  --tracking-2xl: -0.03em;
  --tracking-xl: -0.025em;
  --tracking-lg: -0.02em;
  --tracking-tight: -0.025em;
  --tracking-sm: 0.01em;
  --tracking-mono: 0.04em;

  --header-h: 60px;
  --section-py: clamp(4.5rem, 9vw, 7.5rem);
  --container: 1200px;
  --pad-x: clamp(1.25rem, 4vw, 2.5rem);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body.page-compile {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: var(--text-base);
  line-height: 1.55;
  font-feature-settings: "kern", "ss01";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  padding-top: var(--header-h);
}

a { color: inherit; text-decoration: none; }
[lang="sa"] { font-family: var(--deva); }
::selection { background: var(--accent); color: #fff; }

/* ---------- type tokens (cursor scale) ---------- */
.type-2xl { font-size: var(--text-2xl); line-height: 0.98; font-weight: 400; letter-spacing: var(--tracking-2xl); }
.type-xl { font-size: var(--text-xl); line-height: 1.05; font-weight: 400; letter-spacing: var(--tracking-xl); }
.type-lg { font-size: var(--text-lg); line-height: 1.1; font-weight: 500; letter-spacing: var(--tracking-lg); }
.type-md { font-size: var(--text-md); line-height: 1.35; font-weight: 500; letter-spacing: var(--tracking-tight); }
.type-md-sm { font-size: var(--text-md-sm); line-height: 1.45; font-weight: 400; }
.type-base { font-size: var(--text-base); line-height: 1.55; }
.type-sm { font-size: var(--text-sm); line-height: 1.5; letter-spacing: var(--tracking-sm); }
.type-xs { font-size: var(--text-xs); line-height: 1.45; letter-spacing: var(--tracking-sm); }

.type-mono {
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--text-tertiary);
}

/* ---------- header ---------- */
.compile-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.compile-header-inner {
  max-width: var(--container);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.compile-brand {
  font-family: var(--serif);
  font-size: var(--text-md-sm);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
  white-space: nowrap;
}
.compile-brand em { font-style: normal; color: var(--accent); }
/* Brand must not change color on hover on any page (overrides style.css a:hover on inner pages). */
.compile-brand:hover { color: var(--text); }
.compile-brand:hover em { color: var(--accent); }
/* Keep header/footer chrome links undecorated even when style.css (which underlines all links) is also loaded on inner pages. */
.compile-brand,
.compile-brand:hover,
.compile-nav a,
.compile-nav a:hover,
.compile-foot-col a,
.compile-foot-col a:hover,
.compile-foot-brand a,
.compile-foot-brand a:hover { text-decoration: none; }
.compile-nav {
  display: flex;
  gap: 1.75rem;
  font-family: var(--sans);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-sm);
  color: var(--text-tertiary);
}
.compile-nav a {
  transition: color 0.15s ease;
}
.compile-nav a:hover { color: var(--text); }
.compile-nav-cta {
  font-size: var(--text-sm);
  padding: 0.4rem 0.9rem;
  background: var(--text);
  color: var(--bg);
  border-radius: 2px;
  transition: background 0.15s ease;
  letter-spacing: var(--tracking-sm);
}
.compile-nav-cta:hover { background: var(--accent); color: #fff; }
@media (max-width: 700px) {
  .compile-nav a:not(.compile-nav-cta) { display: none; }
}

/* ---------- containers ---------- */
.compile-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* ---------- hero ---------- */
.compile-hero {
  padding: clamp(4rem, 9vw, 7rem) var(--pad-x) clamp(4rem, 8vw, 6.5rem);
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 4rem;
  align-items: center;
}
@media (max-width: 900px) {
  .compile-hero { grid-template-columns: 1fr; gap: 3rem; }
  .compile-hero-graphic { order: 2; }
}

.compile-hero h1 {
  font-family: var(--display);
  font-weight: 400;
  font-variation-settings: "opsz" 60;
  font-size: clamp(2.5rem, 5.8vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.018em;
  margin: 0 0 1.5rem;
  max-width: 14ch;
}
.compile-hero h1 em {
  font-style: italic;
  font-weight: 500;
}
.compile-hero-lede {
  font-family: var(--sans);
  font-size: var(--text-md-sm);
  line-height: 1.5;
  color: var(--text-sec);
  margin: 0 0 0.8rem;
  max-width: 56ch;
  text-wrap: pretty;
}

.compile-hero-cta {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* ---------- hero graphic: 108-cell grid ---------- */
.compile-hero-graphic {
  position: relative;
  align-self: center;
}
.compile-cell-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0.28rem;
  width: 100%;
  max-width: 480px;
  margin-left: auto;
}
.compile-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--deva);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1;
  color: var(--text-tertiary);
  background: var(--bg-card);
  border-radius: 2px;
  opacity: 0;
  transform: scale(0.6);
  animation:
    cell-in 0.55s cubic-bezier(0.16, 1, 0.3, 1) calc(var(--d, 0) * 9ms) forwards,
    cell-wave 8s ease-in-out calc(1.6s + var(--d, 0) * 22ms) infinite;
  transition: transform 0.18s ease;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  position: relative;
}
.compile-cell--featured {
  background: var(--accent);
  color: #fff;
  font-weight: 500;
  animation:
    cell-in 0.55s cubic-bezier(0.16, 1, 0.3, 1) calc(var(--d, 0) * 9ms) forwards,
    cell-glow 4.5s ease-in-out calc(0.8s + var(--d, 0) * 80ms) infinite;
}
.compile-cell:hover {
  background: var(--text) !important;
  color: var(--bg) !important;
  transform: scale(1.18) !important;
  z-index: 5;
  animation-play-state: paused;
}
/* Launched cells: orange, clickable */
.compile-cell--launched {
  background: var(--accent);
  color: #fff;
  font-weight: 500;
  animation: cell-in 0.55s cubic-bezier(0.16, 1, 0.3, 1) calc(var(--d, 0) * 9ms) forwards;
}
.compile-cell--launched:hover {
  background: var(--accent-soft) !important;
  color: #fff !important;
  transform: scale(1.18) !important;
  z-index: 5;
  animation-play-state: paused;
}
/* Locked (not-yet-launched) cells: dimmed; orange lock icon + native tooltip on hover */
.compile-cell--locked {
  color: var(--text-muted);
  cursor: not-allowed;
}
.compile-cell--locked:hover {
  background-color: color-mix(in srgb, var(--accent) 16%, var(--bg)) !important;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23F54E00' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='4.5' y='10.5' width='15' height='10' rx='2'/%3E%3Cpath d='M8 10.5V7a4 4 0 0 1 8 0v3.5'/%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: center !important;
  background-size: 62% !important;
  color: transparent !important;
  transform: scale(1.18) !important;
  z-index: 5;
  animation-play-state: paused;
}
@keyframes cell-in {
  to { opacity: 1; transform: scale(1); }
}
@keyframes cell-wave {
  0%, 88%, 100% { background: var(--bg-card); }
  50%, 54% { background: var(--bg-card-hover); }
}

@keyframes cell-glow {
  0%, 60%, 100% { background: var(--accent); box-shadow: 0 0 0 0 rgba(245, 78, 0, 0); }
  30% { background: var(--accent-soft); box-shadow: 0 0 0 4px rgba(245, 78, 0, 0.18); }
}
@media (prefers-reduced-motion: reduce) {
  .compile-cell, .compile-cell--featured { animation: none; opacity: 1; transform: none; }
}
@media (max-width: 900px) {
  .compile-cell-grid { max-width: 100%; margin: 0; }
  .compile-cell { font-size: 0.65rem; }
}


.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.1rem;
  font-family: var(--sans);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-sm);
  border-radius: 2px;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary {
  background: var(--text);
  color: var(--bg);
}
.btn-primary:hover {
  background: var(--accent);
  color: #fff;
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  border-color: var(--text);
  background: var(--bg-card);
}

/* ---------- section base ---------- */
.compile-section {
  padding: var(--section-py) var(--pad-x);
  max-width: var(--container);
  margin: 0 auto;
}
.compile-section + .compile-section { border-top: 1px solid var(--border); }
.compile-section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 2rem;
  margin-bottom: 3rem;
  align-items: baseline;
}
.compile-section-head h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: var(--text-lg);
  line-height: 1.05;
  letter-spacing: var(--tracking-lg);
  margin: 0;
}
.compile-section-head .compile-section-lede {
  font-family: var(--sans);
  font-size: var(--text-md-sm);
  line-height: 1.5;
  color: var(--text-sec);
  margin: 0;
  max-width: 52ch;
  text-wrap: pretty;
}
@media (max-width: 760px) {
  .compile-section-head { grid-template-columns: 1fr; gap: 1rem; }
  .compile-section-head h2 { font-size: 2rem; }
}

/* ---------- problems grid (replaces speakers) ---------- */
.compile-problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
@media (max-width: 900px) { .compile-problem-grid { grid-template-columns: 1fr; } }

/* ---------- problems carousel ---------- */
.compile-carousel { position: relative; }

.compile-carousel__track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.compile-carousel__track.is-carousel {
  display: flex;
  grid-template-columns: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 2px;
}
.compile-carousel__track.is-carousel::-webkit-scrollbar { display: none; }
.compile-carousel__track.is-carousel > .compile-problem-card {
  flex: 0 0 calc((100% - 2rem) / 3);
  scroll-snap-align: start;
}
@media (max-width: 900px) {
  .compile-carousel__track { grid-template-columns: 1fr; }
  .compile-carousel__track.is-carousel > .compile-problem-card { flex-basis: 100%; }
}

.compile-carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 6;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0 0.2rem;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  color: var(--text);
  font-family: var(--serif);
  font-size: 1.7rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(38, 37, 30, 0.08);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}
.compile-carousel__btn:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.compile-carousel__btn[hidden] { display: none; }
.compile-carousel__btn:disabled {
  opacity: 0.3;
  cursor: default;
  box-shadow: none;
}
.compile-carousel__btn:disabled:hover {
  background: var(--bg);
  color: var(--text);
  border-color: var(--border-strong);
}
.compile-carousel__btn--prev { left: -14px; }
.compile-carousel__btn--next { right: -14px; }
@media (max-width: 1320px) {
  .compile-carousel__btn--prev { left: 4px; }
  .compile-carousel__btn--next { right: 4px; }
}

.compile-problems-more {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}
.compile-problems-more[hidden] { display: none; }

.compile-problem-card {
  background: var(--bg-card);
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: background 0.15s ease, border-color 0.15s ease;
  text-decoration: none;
  color: inherit;
  min-height: 280px;
}
.compile-problem-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border);
}
.compile-problem-card:hover .compile-problem-card__cta { color: var(--accent); }
.compile-problem-card__n {
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.compile-problem-card__title {
  font-family: var(--serif);
  font-size: var(--text-md);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: var(--tracking-tight);
  margin: 0;
}
.compile-problem-card__body {
  font-family: var(--sans);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--text-sec);
  margin: 0;
  flex: 1;
  text-wrap: pretty;
}
.compile-problem-card__cta {
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-top: auto;
  transition: color 0.15s ease;
}

/* ---------- curators ---------- */
.compile-curators {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}
@media (max-width: 700px) { .compile-curators { grid-template-columns: 1fr; } }
.compile-curator {
  padding: 0;
}
.compile-curator h3 {
  font-family: var(--serif);
  font-size: var(--text-md);
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
  margin: 0 0 0.3rem;
}
.compile-curator__role {
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin: 0 0 1.1rem;
}
.compile-curator p {
  font-family: var(--sans);
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--text-sec);
  margin: 0 0 0.5rem;
  max-width: 44ch;
  text-wrap: pretty;
}
.compile-curator a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 0.5px;
  transition: color 0.15s ease;
}
.compile-curator a:hover { color: var(--accent); }

/* ---------- FAQs ---------- */
.compile-faq {
  border-top: 1px solid var(--border);
}
.compile-faq details {
  border-bottom: 1px solid var(--border);
  padding: 1.4rem 0;
}
.compile-faq summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--sans);
  font-size: var(--text-md-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
  cursor: pointer;
  list-style: none;
  padding-right: 1rem;
  color: var(--text);
  transition: color 0.15s ease;
}
.compile-faq summary:hover { color: var(--accent); }
.compile-faq summary::-webkit-details-marker { display: none; }
.compile-faq summary::after {
  content: "+";
  font-family: var(--mono);
  font-weight: 400;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--text-tertiary);
  transition: transform 0.2s ease, color 0.2s ease;
}
.compile-faq details[open] summary::after {
  transform: rotate(45deg);
  color: var(--accent);
}
.compile-faq p {
  margin: 0.9rem 0 0;
  font-family: var(--sans);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--text-sec);
  max-width: 64ch;
  text-wrap: pretty;
}
.compile-faq a { color: var(--text); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 0.5px; }
.compile-faq a:hover { color: var(--accent); }

/* ---------- waitlist form ---------- */
.compile-waitlist-wrap {
  background: var(--bg-card);
  border-radius: 4px;
  padding: clamp(1.75rem, 4vw, 2.75rem);
}
.compile-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
}
.compile-form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.compile-form-field.full { grid-column: 1 / -1; }
.compile-form label {
  font-family: var(--sans);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--text);
  letter-spacing: var(--tracking-sm);
}
.compile-form label .req {
  color: var(--accent);
  margin-left: 0.2rem;
}
.compile-form input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 0.6rem 0.75rem;
  font-family: var(--sans);
  font-size: var(--text-sm);
  color: var(--text);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.compile-form input:focus {
  outline: none;
  border-color: var(--text);
  background: var(--bg-card-hover);
}
.compile-form input::placeholder { color: var(--text-tertiary); opacity: 0.6; }
.compile-form-actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.4rem;
}
.compile-form-note {
  font-family: var(--sans);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin: 0;
}
@media (max-width: 600px) { .compile-form { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
.compile-foot {
  border-top: 1px solid var(--border);
  margin-top: var(--section-py);
  padding: clamp(3rem, 6vw, 5rem) var(--pad-x) 2.5rem;
}
.compile-foot-inner {
  max-width: var(--container);
  margin: 0 auto;
}
.compile-foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}
@media (max-width: 900px) {
  .compile-foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
  .compile-foot-grid { grid-template-columns: 1fr; }
}
.compile-foot-brand h3 {
  font-family: var(--serif);
  font-size: var(--text-md);
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
  margin: 0 0 0.6rem;
}
.compile-foot-brand em { font-style: normal; color: var(--accent); }
.compile-foot-brand p {
  font-family: var(--sans);
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--text-tertiary);
  margin: 0;
  max-width: 28ch;
}
.compile-foot-col h4 {
  font-family: var(--sans);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin: 0 0 0.85rem;
  font-weight: 400;
  letter-spacing: var(--tracking-sm);
}
.compile-foot-col ul {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.compile-foot-col a {
  font-family: var(--sans);
  font-size: var(--text-sm);
  color: var(--text);
  transition: color 0.15s ease;
}
.compile-foot-col a:hover { color: var(--accent); }

.compile-foot-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.compile-foot-bottom a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.compile-foot-bottom a:hover { color: var(--text); }