/* RavineTech — site styles */

:root {
  --ink: #0f1d1a;
  --ink-2: #1b2e2a;
  --paper: #f5f2ea;
  --paper-2: #ebe6d9;
  --line: #d6cfbd;
  --muted: #5d6a64;
  --accent: #d9622b;
  --accent-ink: #ffffff;
  --moss: #2f5d50;
  --moss-soft: #dbe6df;
  --radius: 14px;
  --wrap: 1160px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0 0 1em; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 8px;
  background: var(--ink);
  color: var(--paper);
  padding: 8px 14px;
  border-radius: 8px;
  z-index: 100;
}
.skip:focus { left: 8px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- Header ---------- */

.top {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.top.scrolled { border-bottom-color: var(--line); }

.top .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 21px;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.brand-mark { width: 30px; height: 30px; flex: none; }

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav a {
  text-decoration: none;
  font-size: 15px;
  color: var(--ink-2);
}
.nav a:not(.btn):hover { color: var(--accent); }
.nav a[aria-current="page"]:not(.btn) { color: var(--accent); }
.nav a.btn-dark { color: var(--paper); }

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  padding: 0;
  cursor: pointer;
  color: var(--ink);
}
.menu-toggle svg { margin: auto; }

@media (max-width: 760px) {
  .menu-toggle { display: block; }
  .nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 8px 24px 20px;
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; font-size: 17px; border-bottom: 1px solid var(--paper-2); }
  .nav a.btn { margin-top: 12px; border-bottom: 0; text-align: center; }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s, background .15s, color .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #c4521e; }
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover { background: var(--ink-2); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); }
.btn[disabled] { opacity: .6; cursor: progress; transform: none; }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 88px 0 96px;
  overflow: hidden;
}
.hero-lines {
  position: absolute;
  inset: auto 0 0 0;
  height: 100%;
  width: 100%;
  color: var(--line);
  pointer-events: none;
  z-index: 0;
}
.hero .wrap { position: relative; z-index: 1; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--moss);
  margin-bottom: 22px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent);
}

.hero h1 {
  font-size: clamp(42px, 7vw, 84px);
  max-width: 14ch;
}
.hero h1 em {
  font-style: italic;
  color: var(--moss);
}
.hero .lede {
  font-size: clamp(18px, 2vw, 21px);
  max-width: 56ch;
  color: var(--ink-2);
  margin: 28px 0 36px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-top: 56px;
  font-size: 14px;
  color: var(--muted);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--moss);
}

/* ---------- Sections ---------- */

section { padding: 96px 0; }

.section-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 64px;
  align-items: end;
  margin-bottom: 56px;
}
.section-head h2 { font-size: clamp(32px, 4.4vw, 52px); }
.section-head p { color: var(--muted); margin: 0; max-width: 52ch; }

@media (max-width: 860px) {
  section { padding: 72px 0; }
  .section-head { grid-template-columns: 1fr; margin-bottom: 40px; }
}

/* ---------- Services ---------- */

.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.service {
  padding: 32px 32px 36px 0;
  border-bottom: 1px solid var(--line);
}
.service + .service { padding-left: 32px; border-left: 1px solid var(--line); }
.service .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
}
.service h3 { font-size: 26px; margin: 14px 0 12px; }
.service p { color: var(--ink-2); margin: 0 0 16px; }
.service ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.service li {
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--paper-2);
  color: var(--ink-2);
}

@media (max-width: 860px) {
  .services { grid-template-columns: 1fr; }
  .service,
  .service + .service { padding: 28px 0; border-left: 0; }
}

/* ---------- Work ---------- */

.work { background: var(--ink); color: var(--paper); }
.work .section-head p { color: #a9b6b0; }
.work .eyebrow { color: #9cc3b4; }

.case {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 56px 0;
  border-top: 1px solid #2a3d38;
}
.case:last-child { padding-bottom: 0; }
.case.flip .case-visual { order: 2; }

.case-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: #9cc3b4;
}
.case h3 { font-size: clamp(30px, 3.6vw, 42px); margin: 12px 0 6px; }
.case .quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 20px;
  color: #f0c9b2;
  margin-bottom: 18px;
}
.case p { color: #c9d2ce; }
.case ul {
  list-style: none;
  padding: 0;
  margin: 22px 0 28px;
  display: grid;
  gap: 10px;
}
.case li {
  position: relative;
  padding-left: 22px;
  color: #dfe5e2;
  font-size: 16px;
}
.case li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 2px;
  background: var(--accent);
}
.case-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--paper);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid #4b5e58;
  padding-bottom: 2px;
}
.case-link:hover { border-color: var(--accent); color: #ffd9c5; }

.case-visual {
  border-radius: 18px;
  padding: 28px;
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* School Manager mock */
.mock-school { background: #12343b; }
.mock-school .screen {
  width: 100%;
  max-width: 420px;
  background: #f6f8f4;
  border-radius: 12px;
  overflow: hidden;
  color: #12343b;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.5);
  font-size: 13px;
}
.mock-school .bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #fff;
  border-bottom: 1px solid #e3e8e2;
  font-weight: 700;
}
.mock-school .bar i {
  width: 14px; height: 14px; border-radius: 3px; background: #f2c230; display: inline-block;
}
.mock-school .rows { padding: 10px 16px 16px; }
.mock-school .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px dashed #dfe5df;
}
.mock-school .row:last-child { border-bottom: 0; }
.mock-school .who { display: flex; align-items: center; gap: 10px; }
.mock-school .av {
  width: 26px; height: 26px; border-radius: 50%;
  background: #d5e2de; display: grid; place-items: center;
  font-size: 11px; font-weight: 700;
}
.pill {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
}
.pill.in { background: #dcefe2; color: #1f6b3a; }
.pill.late { background: #fdf1cc; color: #8a6400; }
.pill.ex { background: #e5e9f3; color: #3c4a74; }

/* Alinea mock */
.mock-ai {
  background:
    radial-gradient(circle at 20% 10%, rgba(141,134,255,.35), transparent 45%),
    radial-gradient(circle at 90% 90%, rgba(185,241,255,.25), transparent 45%),
    #050a14;
}
.mock-ai .screen {
  width: 100%;
  max-width: 420px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px;
  padding: 18px;
  color: #e7ecf7;
  font-size: 13px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.6);
}
.mock-ai .said {
  background: rgba(141,134,255,.16);
  border-radius: 10px;
  padding: 10px 12px;
  font-style: italic;
  color: #d6d4ff;
  margin-bottom: 14px;
}
.mock-ai .note-h {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: #9fb3d9;
  margin: 10px 0 4px;
}
.mock-ai .line {
  height: 7px;
  border-radius: 4px;
  background: rgba(255,255,255,.16);
  margin: 6px 0;
}
.mock-ai .flag {
  margin-top: 14px;
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px dashed rgba(185,241,255,.5);
  color: #b9f1ff;
}

@media (max-width: 860px) {
  .case { grid-template-columns: 1fr; gap: 32px; padding: 44px 0; }
  .case.flip .case-visual { order: 0; }
  .case-visual { min-height: 0; padding: 22px; }
}

/* ---------- Process ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}
.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
}
.step h3 { font-size: 22px; margin: 12px 0 8px; }
.step p { color: var(--muted); font-size: 15px; margin: 0; }

@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Principles ---------- */

.principles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 64px;
}
.principle {
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.principle h3 { font-size: 22px; margin-bottom: 8px; }
.principle p { color: var(--muted); margin: 0; }

@media (max-width: 760px) { .principles { grid-template-columns: 1fr; } }

/* ---------- CTA ---------- */

.cta { padding: 0 0 96px; }
.cta-box {
  background: var(--moss);
  color: var(--paper);
  border-radius: 22px;
  padding: 64px;
  display: grid;
  grid-template-columns: 1.4fr auto;
  gap: 32px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.cta-box h2 { font-size: clamp(30px, 4vw, 46px); max-width: 18ch; }
.cta-box p { color: #d3e2db; margin: 14px 0 0; max-width: 48ch; }

@media (max-width: 760px) {
  .cta-box { grid-template-columns: 1fr; padding: 40px 28px; }
}

/* ---------- Footer ---------- */

.foot {
  border-top: 1px solid var(--line);
  padding: 36px 0 44px;
  font-size: 14px;
  color: var(--muted);
}
.foot .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px 32px;
  align-items: center;
}
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.foot a { text-decoration: none; }
.foot a:hover { color: var(--accent); }

/* ---------- Contact page ---------- */

.contact {
  padding: 72px 0 96px;
}
.contact-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 72px;
  align-items: start;
}
.contact h1 { font-size: clamp(40px, 5.6vw, 66px); }
.contact .lede { font-size: 19px; color: var(--ink-2); margin: 24px 0 36px; max-width: 42ch; }

.contact-aside dl { margin: 0; }
.contact-aside dt {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
  margin-top: 22px;
}
.contact-aside dd { margin: 4px 0 0; }
.contact-aside dd a { color: var(--moss); font-weight: 600; }

.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 40px;
}

.field { margin-bottom: 20px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }

label, .label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 7px;
}
label .opt { font-weight: 400; color: var(--muted); }

input[type="text"],
input[type="email"],
select,
textarea {
  width: 100%;
  font: inherit;
  font-size: 16px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  transition: border-color .15s, background .15s;
}
input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--moss);
  background: #fff;
  box-shadow: 0 0 0 3px var(--moss-soft);
}
textarea { min-height: 150px; resize: vertical; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; border: 0; padding: 0; margin: 0; }
.chips legend { padding: 0; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
  background: var(--paper);
  transition: all .15s;
}
.chip input:checked + span { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.field-error { color: #b23a12; font-size: 13px; margin-top: 6px; }
.invalid { border-color: #c75a2f !important; }

.form-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
}
.form-foot small { color: var(--muted); max-width: 32ch; }

.notice {
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 22px;
  font-size: 15px;
}
.notice.error { background: #fbe6dc; color: #7a2a0b; }
.notice.ok { background: var(--moss-soft); color: #1d4337; }

.sent { text-align: center; padding: 28px 8px; }
.sent svg { margin: 0 auto 18px; color: var(--moss); }
.sent h2 { font-size: 32px; margin-bottom: 10px; }
.sent p { color: var(--muted); }

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 560px) {
  .form-card { padding: 26px 20px; }
  .field-row { grid-template-columns: 1fr; }
  .wrap { padding: 0 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}