:root {
  --ink: #1a1f1b;
  --muted: #5c675e;
  --soil: #1F4A45;
  --cream: #f4efe4;
  --paper: #fbf7ef;
  --white: #fffdf8;
  --line: #d9d0c0;
  --accent: #2f5a3c;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: Figtree, system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}
h1, h2, h3, .logo strong {
  font-family: Fraunces, Georgia, serif;
  font-weight: 650;
  letter-spacing: -0.02em;
}
.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.7rem 5vw;
  background: rgba(251,247,239,0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.logo { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; color: inherit; }
.mark {
  width: 2.2rem; height: 2.2rem; border-radius: 0.5rem;
  background: var(--soil); color: var(--cream);
  display: grid; place-items: center; font-weight: 700;
}
.logo small { display: block; font-size: 0.75rem; color: var(--muted); font-weight: 400; }
.nav nav { display: flex; gap: 1.4rem; align-items: center; }
.nav nav a,
.nav nav .btn { text-align: center; }
.nav nav a {
  text-decoration: none;
  color: var(--ink);
  font-size: 1.01rem;
  font-weight: 600;
}
.nav nav a.btn,
a.btn,
.btn {
  color: #ffffff !important;
  background: var(--soil);
  font-size: 0.95rem;
  padding: 0.55rem 0.9rem;
}
.nav nav a.btn-ghost,
.nav .btn-ghost {
  color: #1F4A45 !important;
  background: #ffffff !important;
}
.btn-ghost,
button.btn-ghost,
a.btn-ghost,
.grade-actions .btn-ghost {
  color: #1F4A45 !important;
  background: #ffffff !important;
  box-shadow: inset 0 0 0 2px #1F4A45 !important;
}
.btn {
  display: inline-block;
  background: var(--soil);
  color: #ffffff;
  text-decoration: none;
  border: none;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.btn-ghost {
  background: transparent;
  color: var(--soil);
  box-shadow: inset 0 0 0 1.5px var(--soil);
}
.hero {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 2rem;
  padding: 2.5rem 6vw 1.5rem;
  align-items: start;
}
.hero-copy { display: flex; flex-direction: column; }
.hero-actions { margin-top: 1.5rem; }
.hero-rule {
  height: 12px;
  margin: 0.5rem 6vw 1.5rem;
  background: radial-gradient(ellipse at center, #1F4A45 0%, #1F4A45 28%, transparent 70%);
  border-radius: 999px;
}
.eyebrow {
  display: inline-block;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.hero h1 { font-size: clamp(2rem, 4vw, 2.8rem); line-height: 1.15; margin-bottom: 1rem; }
.hero-copy p { color: var(--muted); margin-bottom: 0.75rem; max-width: 36rem; }
.hero-actions { display: flex; gap: 0.75rem; margin: 1rem 0 0.5rem; }
.micro { font-size: 0.9rem; }
.shelf-label { font-size: 0.8rem; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 0.5rem; }
.shelf {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
  background: #e8dfd0;
  padding: 1rem;
  border-radius: 1.2rem;
}
.book {
  background: #2f5a3c;
  color: var(--cream);
  border-radius: 0.3rem 0.6rem 0.6rem 0.3rem;
  padding: 1rem 0.7rem 1.1rem 1rem;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  box-shadow: 5px 6px 0 rgba(40,30,15,0.16), inset -5px 0 0 rgba(0,0,0,0.14);
  position: relative;
}
.book::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 7px;
  background: rgba(0,0,0,0.2);
  border-radius: 0.3rem 0 0 0.3rem;
}
.book.eng { background: #3a5270; }
.book.alg { background: #2f6b4f; }
.book.hist { background: #6b4a32; }
.book.chem { background: #4a3a2a; }
.book.open { background: #c8c0b0; color: var(--ink); }
.book .grade { align-self: flex-end; font-weight: 700; }
.weak-btn {
  margin-top: 0.4rem;
  align-self: flex-start;
  background: rgba(255,253,248,0.2);
  color: inherit;
  border: 1px solid rgba(255,253,248,0.5);
  border-radius: 999px;
  padding: 0.15rem 0.5rem;
  font-size: 0.7rem;
  cursor: pointer;
}
.cal-card {
  margin-top: 0.8rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 0.9rem;
}
.cal-head { display: flex; justify-content: space-between; align-items: center; font-weight: 600; }
.cal-head small { font-weight: 400; color: var(--muted); }
.mini { border: 1px solid var(--line); background: var(--cream); border-radius: 999px; padding: 0.2rem 0.6rem; font-size: 0.8rem; }
.cal-days { display: flex; gap: 1rem; margin: 0.6rem 0; }
.cal-days div { text-align: center; font-size: 0.8rem; color: var(--muted); }
.cal-days strong { display: block; color: var(--ink); font-size: 1rem; }
.split-row {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 1.5rem;
  padding: 1rem 6vw 2.5rem;
  align-items: start;
}
.cal-copy h2 { font-size: clamp(2.4rem, 5vw, 3.4rem); margin-bottom: 1rem; line-height: 1.15; }
.cal-copy ul { margin: 0 0 0 1.2rem; color: var(--muted); font-size: 1.35rem; }
.cal-copy li { margin-bottom: 0.85rem; }
@media (max-width: 900px) {
  .nav { flex-wrap: wrap; padding: 0.6rem 4vw; }
  .nav nav { gap: 0.6rem; flex-wrap: wrap; }
  .nav nav a { font-size: 0.85rem; }
  .logo small { display: none; }
  .hero, .split-row, .grid-4, .grid-2, .settings-panel, .price-grid { grid-template-columns: 1fr; }
  .hero { padding: 1.2rem 4vw; }
  .split-row { padding: 1rem 4vw 2rem; }
  .month-grid { font-size: 0.55rem; }
}
.month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  font-size: 0.62rem;
  line-height: 1.2;
}
.month-grid .dow { font-weight: 700; text-align: center; padding: 0.2rem 0; color: var(--muted); }
.month-grid .day {
  background: var(--cream);
  border-radius: 0.3rem;
  padding: 0.25rem;
  min-height: 3.4rem;
}
.month-grid .day.empty { background: transparent; }
.month-grid .day b { display: block; font-size: 0.75rem; }
.month-grid .day em { font-style: normal; color: var(--muted); display: block; }
.month-grid .day.test { background: #f3e4d4; outline: 1px solid #c46b3a; }
.grades { padding: 3.5rem 6vw; background: #f7f3ea; }
.grade-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  padding: 1.4rem;
  max-width: 52rem;
}
.grade-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.grade-head small { display: block; color: var(--muted); font-weight: 400; }
.grade-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.grade-card table { width: 100%; border-collapse: collapse; margin: 0.5rem 0 1rem; font-size: 0.95rem; }
.grade-card th, .grade-card td { text-align: left; padding: 0.5rem 0.4rem; border-bottom: 1px solid var(--line); }
.weak-panel { background: var(--cream); border-radius: 0.8rem; padding: 1rem; }
.weak-panel ul { margin: 0.4rem 0 0.6rem 1.1rem; }
.steps, .features, .parents, .pricing, .integrity, .demo, .trial {
  padding: 3.5rem 6vw;
}
.steps h2, .features h2, .parents h2, .pricing h2, .integrity h2, .demo h2, .trial h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin-bottom: 1.2rem;
}
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-4 article, .grid-2 article, .price-grid article {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.2rem;
}
.grid-4 span { color: #c46b3a; font-weight: 700; font-size: 0.85rem; }
.settings-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  padding: 1.5rem;
}
.settings-ui { display: grid; gap: 0.75rem; }
.settings-ui label, .waitlist label { display: grid; gap: 0.25rem; font-weight: 600; font-size: 0.9rem; }
.settings-ui input, .waitlist input {
  font: inherit; font-weight: 400;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
}
.settings-ui fieldset { border: 1px solid var(--line); border-radius: 0.75rem; padding: 0.75rem; }
.check { font-weight: 400; display: flex; gap: 0.4rem; align-items: center; }
.note { margin-top: 0.6rem; font-size: 0.9rem; color: var(--soil); }
.price-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; align-items: stretch; }
.price-grid article {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}
.price-grid article .card-foot {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 0.5rem;
  padding-top: 1rem;
}
.price { font-family: Fraunces, serif; font-size: 2rem; margin: 0.3rem 0 0.6rem; }
.price span { font-size: 1rem; color: var(--muted); }
.featured { box-shadow: 0 0 0 2px var(--soil); }
.price-grid ul, .settings-copy ul { margin: 0.6rem 0 1rem 1.1rem; }
.lede { color: var(--muted); margin-bottom: 1.2rem; max-width: 40rem; }
.waitlist { max-width: 28rem; display: grid; gap: 0.8rem; }
footer { padding: 2rem 6vw 3rem; color: var(--muted); border-top: 1px solid var(--line); }
@media (max-width: 900px) {
  .hero, .grid-4, .grid-2, .settings-panel, .price-grid { grid-template-columns: 1fr; }
}

/* ---- app pages ---- */
.page { padding: 2.5rem 6vw; max-width: 72rem; margin: 0 auto; }
.narrow { max-width: 32rem; margin: 0; }
.form { display: flex; flex-direction: column; gap: .9rem; margin-top: 1.2rem; }
.form label { font-weight: 600; display: block; }
.form input, .form select, .form textarea { display: block; width: 100%; margin-top: .3rem; padding: .6rem; border: 1px solid var(--line); border-radius: .5rem; font: inherit; background: var(--white); }
.msg { margin-top: .8rem; min-height: 1.4rem; font-weight: 600; }
.msg.err { color: #a32a2a; } .msg.ok { color: var(--accent); }
.card { background: var(--white); border: 1px solid var(--line); border-radius: .8rem; padding: 1.1rem 1.2rem; margin: 1rem 0; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.stat { font-family: Fraunces, Georgia, serif; font-size: 2rem; font-weight: 650; }
.stat-label { color: var(--muted); font-size: .85rem; }
table.data { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.data th, table.data td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid var(--line); }
.bar { background: var(--soil); height: .9rem; border-radius: .3rem; min-width: 2px; }
.pill { display: inline-block; padding: .1rem .5rem; border-radius: 1rem; background: var(--cream); font-size: .8rem; }
.pill.bad { background: #f3d6d6; } .pill.good { background: #d8ead9; }
.tabs { display: flex; gap: .5rem; flex-wrap: wrap; margin: 1rem 0; }
.tabs button { cursor: pointer; padding: .4rem .9rem; border: 1px solid var(--line); border-radius: 2rem; background: var(--white); font: inherit; }
.tabs button.on { background: var(--soil); color: var(--cream); }
button.btn { cursor: pointer; border: 0; font: inherit; }
pre.out { white-space: pre-wrap; font-family: inherit; }

.essaybar { display:flex; align-items:center; gap:.8rem; flex-wrap:wrap; margin:.6rem 0 1rem; padding:.7rem .9rem; background:var(--cream); border-radius:.6rem; }
.essaybar span { font-weight:600; }
.gtable .wi{width:5.5rem;padding:.3rem .4rem}.gtable .acts{white-space:nowrap}.gtable .acts .btn{padding:.25rem .6rem;font-size:.85rem}
.wirow input{padding:.3rem .4rem;max-width:100%}.wirow .xs{width:4.5rem}
.whatif{background:var(--cream,#f4efe6);border-radius:12px;padding:.8rem 1rem;margin:.6rem 0}.whatif .proj{font-size:1.05rem;margin:.2rem 0 .6rem}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.6rem}.fcard{border:1px solid var(--line,#ddd5c4);border-radius:10px;padding:.7rem;background:#fff}.fcard summary{cursor:pointer}
.quiz>li{margin-bottom:.9rem}.quiz details{margin-top:.3rem}.dlbar{margin:.8rem 0 .2rem}
.quiz{padding-left:1.6rem}.quiz ol{padding-left:1.6rem}
.shots{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem;margin-top:1.2rem;align-items:stretch}
@media(max-width:700px){.shots{grid-template-columns:1fr}}
.shots figure{margin:0;display:flex;flex-direction:column;background:#fffdf8;border:1px solid var(--line);border-radius:1rem;padding:.8rem}
.shots img{display:block;width:100%;height:20rem;object-fit:cover;object-position:top;border-radius:.6rem;border:1px solid var(--line)}
.shots figcaption{margin-top:.7rem;font-size:.95rem;line-height:1.45}
.linkrow{display:flex;gap:.5rem;flex-wrap:wrap}.linkrow input{flex:1;min-width:14rem;padding:.55rem;border:1px solid var(--line);border-radius:.5rem;font-size:.85rem;background:#fff}
.msg.warn{font-weight:400;background:#fff6e0;border:1px solid #e3c36a;border-radius:.6rem;padding:.7rem .9rem;color:#4a3a05}.msg.warn ul{margin:.3rem 0 .5rem 1.1rem;padding:0}
.alerts{border-color:#e3c36a;background:#fffaf0}.alert{padding:.6rem 0;border-top:1px solid var(--line)}.alert:first-of-type{border-top:0}
.card div.acts{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}.msg:empty{display:none}
.syl{margin:.8rem 0;border:1px solid var(--line);border-radius:.7rem;padding:.4rem .8rem;background:#fffdf8}.syl summary{cursor:pointer;font-weight:600;padding:.3rem 0}
.sylrows input[name=title]{width:100%;min-width:12rem}.sylrows input,.sylrows select{padding:.35rem;border:1px solid var(--line);border-radius:.4rem;font:inherit}
.scroll{overflow-x:auto}

.more{margin-top:1rem}.more a{font-weight:700;color:var(--soil,#1f4a45)}
.fnav{line-height:2}.fnav a{margin-right:.2rem}
.fpage{max-width:50rem;margin:0 auto;padding:2rem 5vw 3rem}
.fpage h1{font-family:Fraunces,serif;font-size:2.3rem;line-height:1.15;margin:.4rem 0 .8rem}
.fpage h2{font-family:Fraunces,serif;margin:2rem 0 .6rem}
.fpage p{line-height:1.65;margin:.6rem 0}
.crumbs{font-size:.9rem;color:var(--muted)}
.fkey{background:#fffdf8;border:1px solid var(--line);border-radius:1rem;padding:1rem 1.4rem;margin:1.4rem 0}
.fkey h2{margin-top:.2rem;font-size:1.2rem}.fkey ul{margin:.4rem 0 1rem 1.2rem}.fkey li{margin-bottom:.35rem}
.faq details{border-bottom:1px solid var(--line);padding:.7rem 0}.faq summary{cursor:pointer;font-weight:700}
.fmore li{margin-bottom:.4rem}
.crumbs a,.fmore a,.faq a{color:var(--soil,#1f4a45)}


.lvl{margin-left:.6rem;font-weight:600}.lvl select{padding:.3rem;border-radius:.5rem;border:1px solid var(--line)}

.msg.busy::before{content:'';display:inline-block;width:.9em;height:.9em;margin-right:.5em;vertical-align:-.12em;border:2px solid var(--accent);border-top-color:transparent;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}

.consent-back{position:fixed;inset:0;background:rgba(15,23,42,.65);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}
.consent-box{background:#fff;color:#111;max-width:640px;width:100%;max-height:92vh;overflow:auto;border-radius:1rem;padding:1.5rem 1.6rem;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.consent-box h2{margin-top:0}.consent-box ul{padding-left:1.2rem}.consent-box label{display:block;margin:.8rem 0}
.consent-box input[type=text]{width:100%;padding:.6rem;border:1px solid var(--line);border-radius:.5rem;font-size:1.1rem;font-family:"Brush Script MT","Segoe Script",cursive}
.consent-box .row{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center;margin-top:1rem}
.consent-box .chk{display:flex;gap:.5rem;align-items:flex-start}