/* ================================================================
   Formula — Editorial Design System
   Archivo + Spline Sans Mono · Mint accent · Light/Dark themes
   ================================================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
::selection { background: rgba(108,255,177,.28); }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; }
input { font-family: inherit; }

/* --- Theme Tokens (Light default) --- */
:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --cardb: #e3e7ec;
  --tx: #3a4250;
  --mut: #5f6773;
  --faint: #9aa3b2;
  --hd: #11141c;
  --ac: #0e9e63;
  --mint: #6cffb1;
  --tint: #eef7f1;
  --input-bg: #f6f8fb;
  --header-bg: rgba(246,248,251,.85);
  --thumb-bg: #e7ebf1;
  --code-bg: #0b1a3d;
  --code-tx: #9fe9c4;
  --toggle-track: #dfe3e9;
  --toggle-knob: #fff;
  --toggle-shadow: 0 1px 2px rgba(0,0,0,.2);
  --shadow: 0 8px 30px rgba(0,0,0,.12);
  --dot-color: rgba(40,70,130,.12);
  --overlay: rgba(0,0,0,.4);
}

[data-theme="dark"] {
  --bg: #11141c;
  --card: #181c26;
  --cardb: #2b313d;
  --tx: #c4ccd8;
  --mut: #8a93a3;
  --faint: #5b6473;
  --hd: #f1f4f8;
  --ac: #6cffb1;
  --mint: #6cffb1;
  --tint: #1a1f2a;
  --input-bg: #14171f;
  --header-bg: rgba(17,20,28,.55);
  --thumb-bg: #20242e;
  --code-bg: #020a1f;
  --code-tx: #6cffb1;
  --toggle-track: #222734;
  --toggle-knob: var(--ac);
  --toggle-shadow: 0 0 6px var(--ac);
  --shadow: 0 8px 30px rgba(0,0,0,.4);
  --dot-color: rgba(150,165,195,.12);
  --overlay: rgba(0,0,0,.55);
}

/* --- Typography --- */
body {
  font-family: 'Archivo', sans-serif;
  color: var(--tx);
  line-height: 1.5;
  letter-spacing: .02em;
}

.mono {
  font-family: 'Spline Sans Mono', monospace;
}

/* --- Canvas (dot-grid background) --- */
body {
  background: var(--bg);
  background-image:
    linear-gradient(to bottom, transparent 0px, transparent 110px, var(--bg) 200px),
    radial-gradient(var(--dot-color) 1.1px, transparent 1.3px);
  background-size: 100% 100%, 12px 12px;
  background-repeat: no-repeat, repeat;
  min-height: 100vh;
}

/* --- Layout --- */
.page-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
}

/* --- Sticky Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 28px;
  border-bottom: 1px solid var(--cardb);
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 9px;
}
.logo-diamond {
  font: 700 13px/1 'Spline Sans Mono', monospace;
  color: var(--ac);
}
.logo-text {
  font: 600 13px/1 'Spline Sans Mono', monospace;
  color: var(--hd);
}

.main-nav {
  display: flex;
  gap: 24px;
}
.main-nav a {
  font: 500 12px/1 'Spline Sans Mono', monospace;
  color: var(--mut);
  transition: color .15s ease;
}
.main-nav a:hover {
  color: var(--hd);
}
.main-nav a.active {
  font-weight: 600;
  color: var(--hd);
  border-bottom: 2px solid var(--ac);
  padding-bottom: 4px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--card);
  border: 1px solid var(--cardb);
  border-radius: 4px;
  padding: 6px 9px;
  font: 400 11px/1 'Spline Sans Mono', monospace;
  letter-spacing: .02em;
  color: var(--faint);
}
.search-pill kbd {
  border: 1px solid var(--cardb);
  border-radius: 2px;
  padding: 1px 5px;
  color: var(--mut);
  font: inherit;
  background: none;
}

/* --- Theme Toggle --- */
.theme-toggle {
  width: 30px;
  height: 16px;
  border-radius: 4px;
  background: var(--toggle-track);
  position: relative;
  cursor: pointer;
  border: none;
  padding: 0;
  transition: background .2s ease;
}
.theme-toggle .knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--toggle-knob);
  box-shadow: var(--toggle-shadow);
  transition: left .2s ease, background .2s ease, box-shadow .2s ease;
}
[data-theme="dark"] .theme-toggle .knob {
  left: 16px;
}

/* --- Breadcrumb --- */
.breadcrumb {
  padding: 9px 28px;
  border-bottom: 1px solid var(--cardb);
  background: var(--bg);
  font: 400 11px/1 'Spline Sans Mono', monospace;
  color: var(--faint);
}

/* --- Hero --- */
.hero {
  padding: 48px 0 8px;
}
.hero-eyebrow {
  font: 500 12px/1 'Spline Sans Mono', monospace;
  letter-spacing: .04em;
  color: var(--ac);
  margin: 0 0 16px;
}
.hero-title {
  font: 800 44px/1.05 'Archivo', sans-serif;
  color: var(--hd);
  margin: 0 0 18px;
  max-width: 680px;
  letter-spacing: .01em;
}
.hero-sub {
  font: 400 18px/1.6 'Archivo', sans-serif;
  letter-spacing: .02em;
  color: var(--tx);
  margin: 0 0 24px;
  max-width: 560px;
}

/* --- Category Pills --- */
.cat-pills {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.cat-pill {
  font: 500 11px/1 'Spline Sans Mono', monospace;
  letter-spacing: .04em;
  color: var(--mut);
  background: var(--card);
  border: 1px solid var(--cardb);
  border-radius: 500px;
  padding: 7px 13px;
  cursor: pointer;
  transition: all .15s ease;
}
.cat-pill:hover, .cat-pill.active {
  color: #11141c;
  background: var(--mint);
  border-color: var(--mint);
}

/* --- Section Label --- */
.section-label {
  font: 500 11px/1 'Spline Sans Mono', monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0 0 16px;
}

/* --- Start Here + How To Grid --- */
.start-how-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 28px;
  align-items: start;
  padding: 40px 0 8px;
}
.start-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* --- Ruled Item Block --- */
.ruled-item {
  border-top: 1px solid var(--cardb);
  padding: 18px 2px;
  transition: border-color .2s ease;
}
.ruled-item:hover {
  border-color: var(--ac);
}
.ruled-item-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.ruled-item-label {
  font: 600 10px/1 'Spline Sans Mono', monospace;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.ruled-item-label.accent { color: var(--ac); }
.ruled-item-label.muted { color: var(--mut); }
.ruled-item-action {
  font: 500 10px/1 'Spline Sans Mono', monospace;
  letter-spacing: .04em;
  color: var(--faint);
  cursor: pointer;
  transition: color .15s ease;
}
.ruled-item:hover .ruled-item-action {
  color: var(--ac);
}
.ruled-item-title {
  font: 600 17px/1.25 'Archivo', sans-serif;
  color: var(--hd);
  margin: 0 0 7px;
  letter-spacing: .015em;
}
.ruled-item-desc {
  font: 400 13px/1.5 'Archivo', sans-serif;
  letter-spacing: .02em;
  color: var(--mut);
  margin: 0;
}

/* Smaller title variant for prompts/tools */
.ruled-item-title-sm {
  font: 600 16px/1.3 'Archivo', sans-serif;
  color: var(--hd);
  margin: 0 0 7px;
  letter-spacing: .015em;
}

/* --- How To Use --- */
.how-to {
  border-top: 1px solid var(--cardb);
  padding: 18px 2px;
}
.how-to-step {
  display: flex;
  gap: 11px;
  margin-bottom: 11px;
}
.how-to-step:last-child { margin-bottom: 0; }
.how-to-num {
  font: 600 11px/1 'Spline Sans Mono', monospace;
  color: var(--ac);
  flex: none;
}
.how-to-text {
  font: 400 13px/1.5 'Archivo', sans-serif;
  letter-spacing: .02em;
  color: var(--tx);
}

/* --- Data Table --- */
.section-heading {
  font: 700 24px/1.2 'Archivo', sans-serif;
  color: var(--hd);
  margin: 0 0 4px;
  letter-spacing: .01em;
}
.section-sub {
  font: 400 14px/1.5 'Archivo', sans-serif;
  letter-spacing: .02em;
  color: var(--mut);
  margin: 0 0 18px;
}
.section-sub .tbc {
  font-family: 'Spline Sans Mono', monospace;
  font-size: 12px;
  color: var(--faint);
}

.data-table {
  border: 1px solid var(--cardb);
  background: var(--card);
  overflow: hidden;
  width: 100%;
}
.data-table-head {
  display: grid;
  grid-template-columns: 1.1fr 2fr 0.7fr 0.7fr;
  background: var(--tint);
  border-bottom: 1px solid var(--cardb);
}
.data-table-head > div {
  font: 600 10px/1 'Spline Sans Mono', monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ac);
  padding: 12px 16px;
}
.data-table-row {
  display: grid;
  grid-template-columns: 1.1fr 2fr 0.7fr 0.7fr;
  border-bottom: 1px solid var(--cardb);
  transition: background .15s ease;
  cursor: pointer;
}
.data-table-row:last-child { border-bottom: none; }
.data-table-row:hover { background: var(--tint); }
.data-table-row > div { padding: 14px 16px; }
.dt-name {
  font: 600 14px/1.4 'Archivo', sans-serif;
  letter-spacing: .01em;
  color: var(--hd);
}
.dt-desc {
  font: 400 13px/1.5 'Archivo', sans-serif;
  letter-spacing: .02em;
  color: var(--mut);
}
.dt-link {
  font: 600 11px/1 'Spline Sans Mono', monospace;
  color: var(--ac);
  cursor: pointer;
  transition: opacity .15s ease;
}
.dt-link:hover { opacity: .8; }
.dt-link.pending {
  font-weight: 500;
  color: var(--faint);
  cursor: default;
}

/* --- Prompts Grid --- */
.prompts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* --- Tools Grid --- */
.tools-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

/* --- Formula Block --- */
.formula-block {
  overflow: hidden;
}
.formula-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--cardb);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.formula-title {
  font: 600 16px/1.3 'Archivo', sans-serif;
  color: var(--hd);
  margin: 0 0 3px;
  letter-spacing: .015em;
}
.formula-desc {
  font: 400 13px/1.4 'Archivo', sans-serif;
  letter-spacing: .02em;
  color: var(--mut);
  margin: 0;
}
.formula-desc a {
  color: var(--ac);
}
.copy-chip {
  font: 600 11px/1 'Spline Sans Mono', monospace;
  color: var(--ac);
  border: 1px solid var(--cardb);
  border-radius: 3px;
  padding: 8px 12px;
  white-space: nowrap;
  cursor: pointer;
  background: none;
  transition: all .15s ease;
}
.copy-chip:hover {
  background: var(--tint);
  border-color: var(--ac);
}

pre.formula-code {
  margin: 0;
  padding: 18px 20px;
  background: var(--code-bg);
  color: var(--code-tx);
  font: 400 12.5px/1.7 'Spline Sans Mono', monospace;
  overflow-x: auto;
}

/* --- Newsletter Band --- */
.newsletter-band {
  border-top: 1px solid var(--cardb);
  border-bottom: 1px solid var(--cardb);
  padding: 38px 4px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.nl-eyebrow {
  font: 500 11px/1 'Spline Sans Mono', monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ac);
  margin: 0 0 12px;
}
.nl-title {
  font: 700 26px/1.15 'Archivo', sans-serif;
  color: var(--hd);
  margin: 0 0 8px;
  letter-spacing: .01em;
}
.nl-desc {
  font: 400 15px/1.55 'Archivo', sans-serif;
  letter-spacing: .02em;
  color: var(--tx);
  margin: 0;
}
.nl-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.nl-form input {
  font: 400 13px/1 'Archivo', sans-serif;
  padding: 13px 14px;
  border-radius: 4px;
  border: 1px solid var(--cardb);
  background: var(--input-bg);
  color: var(--tx);
  outline: none;
  transition: border-color .15s ease;
}
.nl-form input:focus {
  border-color: var(--ac);
}

/* --- Buttons --- */
.btn-mint {
  font: 600 12px/1 'Spline Sans Mono', monospace;
  letter-spacing: .04em;
  color: #11141c;
  background: var(--mint);
  border: none;
  padding: 13px 18px;
  border-radius: 4px;
  cursor: pointer;
  align-self: flex-start;
  transition: transform .1s ease, opacity .15s ease;
}
.btn-mint:hover { transform: scale(1.02); opacity: .9; }
.btn-mint:active { transform: scale(0.98); }

.btn-mint-full {
  font: 600 13px/1 'Spline Sans Mono', monospace;
  letter-spacing: .04em;
  color: #11141c;
  background: var(--mint);
  border: none;
  padding: 15px 18px;
  border-radius: 4px;
  cursor: pointer;
  width: 100%;
  transition: transform .1s ease, opacity .15s ease;
}
.btn-mint-full:hover { transform: scale(1.02); opacity: .9; }
.btn-mint-full:active { transform: scale(0.98); }

/* --- Footer --- */
.page-footer {
  font: 400 11px/1 'Spline Sans Mono', monospace;
  color: var(--faint);
  text-align: right;
  margin: 16px 0 0;
  padding-bottom: 32px;
}

/* --- Email Gate Modal --- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open {
  display: flex;
}
.modal-card {
  width: 100%;
  max-width: 460px;
  background: var(--card);
  border: 1px solid var(--cardb);
  border-radius: 6px;
  padding: 30px;
  position: relative;
  animation: modalIn .2s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  font: 500 18px/1 'Spline Sans Mono', monospace;
  color: var(--faint);
  cursor: pointer;
  padding: 4px 8px;
  transition: color .15s ease;
}
.modal-close:hover { color: var(--hd); }

.modal-label {
  font: 600 11px/1 'Spline Sans Mono', monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0 0 6px;
}
.modal-resource-name {
  font: 700 22px/1.2 'Archivo', sans-serif;
  color: var(--hd);
  margin: 0 0 18px;
  letter-spacing: .01em;
}
.modal-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.modal-form label {
  font: 500 11px/1 'Spline Sans Mono', monospace;
  letter-spacing: .04em;
  color: var(--mut);
  display: block;
  margin-bottom: 7px;
}
.modal-form label .req {
  color: var(--ac);
}
.modal-form input {
  width: 100%;
  font: 400 14px/1 'Archivo', sans-serif;
  padding: 13px 14px;
  border-radius: 4px;
  border: 1px solid var(--cardb);
  background: var(--input-bg);
  color: var(--tx);
  outline: none;
  margin-bottom: 16px;
  transition: border-color .15s ease;
}
.modal-form input:focus {
  border-color: var(--ac);
}
.modal-form button {
  margin-top: 6px;
}

.modal-success {
  text-align: center;
  padding: 20px 0;
}
.modal-success h3 {
  font: 700 20px/1.2 'Archivo', sans-serif;
  color: var(--hd);
  margin: 0 0 12px;
}
.modal-success p {
  font: 400 14px/1.5 'Archivo', sans-serif;
  color: var(--mut);
  margin: 0 0 20px;
}

/* --- Toast (copy feedback) --- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--hd);
  color: var(--bg);
  font: 500 12px/1 'Spline Sans Mono', monospace;
  letter-spacing: .04em;
  padding: 10px 18px;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  z-index: 300;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* --- Section Spacing --- */
.section { padding-top: 44px; }

/* --- Mobile Nav --- */
.hamburger {
  display: none;
  background: none;
  border: none;
  font: 600 18px/1 'Spline Sans Mono', monospace;
  color: var(--hd);
  cursor: pointer;
  padding: 4px;
}

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 150;
  flex-direction: column;
  padding: 80px 28px 28px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font: 600 20px/1 'Spline Sans Mono', monospace;
  color: var(--hd);
  padding: 18px 0;
  border-bottom: 1px solid var(--cardb);
}
.mobile-close {
  position: absolute;
  top: 18px;
  right: 24px;
  background: none;
  border: none;
  font: 400 28px/1 'Spline Sans Mono', monospace;
  color: var(--hd);
  cursor: pointer;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .site-header { padding: 12px 20px; }
  .main-nav { display: none; }
  .search-pill { display: none; }
  .hamburger { display: block; }
  .breadcrumb { padding: 9px 20px; }
  .page-wrap { padding: 0 20px; }

  .hero-title { font-size: 32px; }
  .hero-sub { font-size: 16px; }

  .start-how-grid {
    grid-template-columns: 1fr;
  }
  .start-grid {
    grid-template-columns: 1fr;
  }

  .data-table { overflow-x: auto; }
  .data-table-head,
  .data-table-row {
    grid-template-columns: 140px 1fr 80px 80px;
    min-width: 500px;
  }

  .prompts-grid { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr; }

  .newsletter-band {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .btn-mint-full,
  .btn-mint {
    min-height: 48px;
  }
}

@media (max-width: 390px) {
  .hero-title { font-size: 28px; }
  .page-wrap { padding: 0 16px; }
  .site-header { padding: 12px 16px; }
  .breadcrumb { padding: 9px 16px; }
}