/* Ratoath Grinds shared styles
   Concept: "the corrected exam script", warm maths-copybook paper, green marking pen.
   Tailwind (CDN) handles layout utilities; this file owns the signature look + components. */

:root {
  --paper: #F6F1E7;     /* warm copybook paper */
  --card:  #FCF9F2;     /* elevated surface */
  --ink:   #1C2422;     /* warm near-black */
  --muted: #5A645F;     /* secondary text */
  --marker:#1F5B43;     /* green marking pen, primary accent */
  --marker-deep:#15402F;
  --red:   #C0432B;     /* correction red, used sparingly */
  --gold:  #9C7B2E;     /* review stars */
  --line:  rgba(28,36,34,.10);

  --maxw: 1120px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: "Hanken Grotesk", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* Squared copybook grid: the connective tissue of the whole site */
.copybook {
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: -1px -1px;
}
/* faint paper grain for depth */
.grain { position: relative; }
.grain::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

/* ---- Typography ---- */
.font-display { font-family: "Newsreader", Georgia, serif; }
.font-mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
h1, h2, h3 { font-family: "Newsreader", Georgia, serif; font-weight: 500; letter-spacing: -.015em; line-height: 1.05; margin: 0; }
.eyebrow {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: .72rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--marker-deep);
}
.lede { font-size: 1.18rem; color: #2c352f; line-height: 1.6; }

/* ---- Hand-drawn marking pen (the signature) ---- */
.mark-underline { position: relative; display: inline; }
.mark-underline svg { position: absolute; left: -2%; bottom: -.42em; width: 104%; height: .55em; overflow: visible; }
.mark-underline svg path { fill: none; stroke: var(--marker); stroke-width: 3.4; stroke-linecap: round; }
.ink-stroke { stroke-dasharray: 320; stroke-dashoffset: 320; animation: draw 1.1s ease forwards .55s; }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* circled grade sticker used on the photo */
.grade-mark { color: var(--marker); }
.grade-mark .ring { fill: none; stroke: var(--marker); stroke-width: 3; stroke-linecap: round; }
.grade-mark .tick { fill: none; stroke: var(--marker); stroke-width: 3.4; stroke-linecap: round; stroke-linejoin: round; }

/* ---- Buttons ---- */
.btn { display: inline-flex; align-items: center; gap: .55rem; font-weight: 600; font-size: 1rem;
  padding: .82rem 1.35rem; border-radius: 11px; text-decoration: none; cursor: pointer;
  border: 1.5px solid transparent; transition: transform .18s cubic-bezier(.2,.7,.2,1), box-shadow .18s, background-color .18s, color .18s; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--marker); color: #F7FBF8; box-shadow: 0 14px 26px -14px rgba(21,64,47,.75); }
.btn-primary:hover { background: var(--marker-deep); transform: translateY(-2px); box-shadow: 0 20px 34px -16px rgba(21,64,47,.8); }
.btn-ghost { background: transparent; color: var(--marker-deep); border-color: rgba(31,91,67,.35); }
.btn-ghost:hover { border-color: var(--marker); background: rgba(31,91,67,.06); transform: translateY(-2px); }
.btn-light { background: #F7FBF8; color: var(--marker-deep); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 18px 30px -16px rgba(0,0,0,.4); }

:where(a, button, [tabindex]):focus-visible {
  outline: 3px solid var(--marker); outline-offset: 3px; border-radius: 6px;
}

/* ---- Header ---- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(246,241,231,.82);
  backdrop-filter: saturate(140%) blur(8px); border-bottom: 1px solid var(--line); }
.nav-link { color: var(--ink); text-decoration: none; font-weight: 500; padding: .35rem .1rem; position: relative; }
.nav-link::after { content:""; position:absolute; left:0; right:100%; bottom:-2px; height:2px; background:var(--marker); transition: right .25s ease; }
.nav-link:hover::after, .nav-link[aria-current="page"]::after { right: 0; }

/* ---- Cards ---- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  box-shadow: 0 1px 0 rgba(28,36,34,.04), 0 24px 50px -34px rgba(21,64,47,.5); }

/* ---- Reviews carousel ---- */
.reviews { position: relative; }
.review-viewport { overflow: hidden; }
.review-track { display: flex; transition: transform .5s cubic-bezier(.22,.61,.36,1); will-change: transform; }
.review-slide { min-width: 100%; padding: .25rem; }
@media (min-width: 820px) { .review-slide { min-width: 50%; } }
.review-card { height: 100%; background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 1.6rem 1.7rem; box-shadow: 0 22px 44px -34px rgba(21,64,47,.5); position: relative; }
.stars { color: var(--gold); letter-spacing: .12em; font-size: 1.05rem; }
.review-quote { font-family: "Newsreader", Georgia, serif; font-size: 1.22rem; line-height: 1.5; margin: .7rem 0 1.1rem; color: #232b27; }
.review-by { font-weight: 600; }
.review-src { font-family:"JetBrains Mono",monospace; font-size:.7rem; letter-spacing:.1em; text-transform:uppercase; color:var(--muted); }
.car-btn { width: 44px; height: 44px; border-radius: 999px; border: 1.5px solid rgba(31,91,67,.35);
  background: var(--card); color: var(--marker-deep); display:inline-grid; place-items:center; cursor:pointer;
  transition: transform .18s, background .18s, border-color .18s; }
.car-btn:hover { background: rgba(31,91,67,.08); border-color: var(--marker); transform: translateY(-1px); }
.car-dots { display:flex; gap:.5rem; align-items:center; }
.car-dot { width: 9px; height: 9px; border-radius: 999px; border: none; background: rgba(28,36,34,.22); cursor: pointer; padding: 0; transition: background .2s, transform .2s; }
.car-dot[aria-selected="true"] { background: var(--marker); transform: scale(1.25); }

/* placeholder note styling (so Gerard can spot what to replace) */
.placeholder { outline: 2px dashed rgba(192,67,43,.5); outline-offset: 4px; }
.placeholder-tag { display:inline-block; font-family:"JetBrains Mono",monospace; font-size:.62rem; letter-spacing:.12em;
  text-transform:uppercase; color:#fff; background:var(--red); padding:.15rem .5rem; border-radius:5px; }

/* ---- Entrance animation (only hidden when JS is active, so no-JS users still see content) ---- */
.js .reveal { opacity: 0; transform: translateY(14px); }
.js .reveal.in { opacity: 1; transform: none; transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }

/* ---- Skip link ---- */
.skip-link { position: absolute; left: 1rem; top: -3rem; z-index: 100; background: var(--marker);
  color: #F7FBF8; padding: .6rem 1rem; border-radius: 8px; text-decoration: none; transition: top .2s; }
.skip-link:focus { top: 1rem; }

/* ---- Header / nav ---- */
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: 68px; }
.wordmark { font-family:"Newsreader",serif; font-weight:600; font-size:1.35rem; letter-spacing:-.02em; color:var(--ink); text-decoration:none; display:inline-flex; align-items:center; gap:.5rem; }
.wordmark .glyph { display:inline-grid; place-items:center; width:30px; height:30px; border-radius:8px; background:var(--marker); color:#F6F1E7; font-size:.95rem; }
.nav-row { display:flex; align-items:center; gap:1.6rem; }
.menu-btn { display:none; background:none; border:1.5px solid rgba(31,91,67,.3); border-radius:9px; width:44px; height:44px; cursor:pointer; color:var(--marker-deep); }
@media (max-width: 760px) {
  .nav-row { position: fixed; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: .5rem 1.25rem 1.25rem;
    transform: translateY(-130%); transition: transform .3s cubic-bezier(.2,.7,.2,1); box-shadow: 0 24px 40px -28px rgba(0,0,0,.4); }
  .nav-row.open { transform: none; }
  .nav-row .nav-link { padding: .85rem 0; border-bottom: 1px solid var(--line); }
  .nav-row .btn { margin-top: .9rem; justify-content: center; }
  .menu-btn { display: inline-grid; place-items: center; }
}

/* ---- Sections ---- */
.section { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.section-tight { padding: clamp(2.5rem, 5vw, 4rem) 0; }

/* ---- Hero ---- */
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }
.hero h1 { font-size: clamp(2.4rem, 5.6vw, 4rem); }
.hero .lede { max-width: 36ch; }
.cta-row { display:flex; flex-wrap:wrap; gap:.85rem; align-items:center; }
.cta-note { font-family:"JetBrains Mono",monospace; font-size:.72rem; letter-spacing:.06em; color:var(--muted); margin-top:1rem; }

/* photo frame ("exam script" card) */
.photo-frame { position: relative; }
.photo-frame .frame { border:1px solid var(--line); background:var(--card); border-radius:18px; padding:14px;
  box-shadow:0 30px 60px -34px rgba(21,64,47,.55); transform: rotate(1.4deg); }
.photo-frame img, .photo-frame svg.ph { display:block; width:100%; height:auto; border-radius:10px; }
.photo-frame figcaption { font-family:"JetBrains Mono",monospace; font-size:.66rem; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); padding:.7rem .3rem .2rem; }
.sticker { position:absolute; top:-22px; right:-16px; background:var(--card); border:1px solid var(--line);
  border-radius:14px; padding:.5rem .8rem; box-shadow:0 18px 34px -20px rgba(21,64,47,.6); transform: rotate(-6deg);
  display:flex; align-items:center; gap:.5rem; }
.sticker .h1 { font-family:"Newsreader",serif; font-weight:600; font-size:1.2rem; color:var(--marker-deep); }

/* ---- Trust strip ---- */
.trust { display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:14px; overflow:hidden; }
@media (max-width: 720px){ .trust { grid-template-columns:repeat(2,1fr);} }
.trust .cell { background:var(--card); padding:1.15rem 1.1rem; }
.trust .num { font-family:"JetBrains Mono",monospace; font-weight:700; font-size:1.45rem; color:var(--marker-deep); letter-spacing:-.01em; }
.trust .lab { font-size:.82rem; color:var(--muted); margin-top:.15rem; }

/* ---- Inverted band (deep green) ---- */
.band { background: var(--marker-deep); color:#EAF3ED; border-radius: 22px; }
.band h2 { color:#FBFDFB; }
.band .lede { color: #CFE0D5; }

/* ---- Subject cards ---- */
.subject { background:var(--card); border:1px solid var(--line); border-radius:16px; padding:1.6rem; box-shadow:0 22px 44px -36px rgba(21,64,47,.5); }
.subject .badge { font-family:"JetBrains Mono",monospace; font-size:.68rem; letter-spacing:.12em; text-transform:uppercase; color:var(--marker-deep); background:rgba(31,91,67,.1); padding:.25rem .55rem; border-radius:6px; }

/* ---- Responsive grid helpers (replace inline grids so they collapse on mobile) ---- */
.cols-2   { display:grid; grid-template-columns:1fr 1fr;   gap:clamp(2rem,5vw,4rem); align-items:start; }
.cols-hero{ display:grid; grid-template-columns:1fr 1.1fr; gap:clamp(2rem,5vw,4rem); align-items:start; }
.cols-band{ display:grid; grid-template-columns:1.3fr .7fr; gap:2rem; align-items:center; }
.cols-cards{ display:grid; grid-template-columns:1fr 1fr; gap:1.4rem; }
.cols-foot{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:2rem; align-items:start; }
.cols-split{ display:grid; grid-template-columns:1fr 1fr; gap:1.4rem; align-items:center; }
@media (max-width: 820px) {
  .cols-2, .cols-hero, .cols-band, .cols-cards, .cols-foot, .cols-split { grid-template-columns: 1fr; }
  .cols-band .cta-row { justify-content: flex-start !important; }
}

.vh { position:absolute!important; width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap; }

/* utility */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }
.rule-green { height: 2px; background: linear-gradient(90deg, var(--marker), transparent); border: 0; }
.tick-li { list-style: none; padding-left: 2rem; position: relative; }
.tick-li::before { content: ""; position: absolute; left: 0; top: .28em; width: 1.2rem; height: 1.2rem;
  background: no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 13l5 6L21 4' fill='none' stroke='%231F5B43' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }