/* =====================================================================
   Thinknauts · Inbox Intelligence — main stylesheet
   Design language: soft pistachio page wrap, off-white rounded panels,
   bold tight sans headings paired with italic serif emphasis.
   ===================================================================== */

:root {
  --bg-page:   #DCEBA3;   /* pistachio page wrap */
  --bg-panel:  #F9F9F5;   /* off-white content panels */
  --bg-soft:   #F0F3E4;   /* subtle tint inside panels */
  --ink:       #161614;   /* near-black text */
  --ink-2:     #4B4C46;   /* secondary text */
  --ink-3:     #8A8B83;   /* muted text */
  --line:      rgba(22,22,20,.10);
  --accent:    #B9E564;   /* action lime */
  --accent-2:  #A5D94A;
  --teal:      #B9E9D2;
  --rose:      #EFC1C1;
  --radius-xl: 40px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 18px 50px -20px rgba(22,22,20,.35), 0 2px 6px rgba(22,22,20,.06);
  --font-sans: "Inter Tight", "Inter", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-serif: "Instrument Serif", Georgia, serif;
  --gutter: clamp(16px, 2.4vw, 32px);
  --panel-pad: clamp(32px, 6vw, 88px);
  --header-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg-page);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding: var(--gutter);
  padding-top: calc(var(--header-h) + var(--gutter));
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-sans); letter-spacing: -0.02em; line-height: 1.05; margin: 0; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }

.serif { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 24px; border-radius: 999px; border: 1px solid transparent;
  font-family: var(--font-sans); font-weight: 600; font-size: 15px; text-decoration: none;
  transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #2a2a27; }
.btn-accent { background: var(--accent); color: var(--ink); }
.btn-accent:hover { background: var(--accent-2); }
.btn-ghost { background: transparent; color: var(--ink); border-color: rgba(22,22,20,.25); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-block { width: 100%; }
.link-btn { background: none; border: 0; padding: 0; color: inherit; text-decoration: none; text-align: left; }
.link-btn:hover { text-decoration: underline; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--header-h);
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  padding: 0 calc(var(--gutter) + 8px);
  background: linear-gradient(to bottom, var(--bg-page) 70%, rgba(220,235,163,0));
}
.menu-toggle {
  justify-self: start;
  width: 46px; height: 46px; border-radius: 12px; border: 1px solid rgba(22,22,20,.25);
  background: transparent; display: grid; place-content: center; gap: 6px;
}
.menu-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s ease, opacity .25s ease; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
.wordmark {
  font-family: var(--font-sans); font-weight: 700; font-size: 26px; letter-spacing: -0.04em;
  text-decoration: none; color: var(--ink);
}
.header-right { justify-self: end; display: flex; align-items: center; gap: 12px; }
.lang-switch { display: inline-flex; border: 1px solid rgba(22,22,20,.25); border-radius: 999px; padding: 3px; }
.lang-btn { background: transparent; border: 0; padding: 6px 12px; border-radius: 999px; font-family: var(--font-sans); font-weight: 600; font-size: 13px; color: var(--ink-2); }
.lang-btn.is-active { background: var(--ink); color: #fff; }

.site-nav {
  position: absolute; top: calc(var(--header-h) - 8px); left: calc(var(--gutter) + 8px);
  background: var(--bg-panel); border-radius: var(--radius-lg); padding: 14px;
  display: flex; flex-direction: column; min-width: 240px;
  box-shadow: var(--shadow-card);
  opacity: 0; transform: translateY(-8px); pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
.site-nav.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
.site-nav a {
  text-decoration: none; padding: 12px 16px; border-radius: 12px;
  font-family: var(--font-sans); font-weight: 600; font-size: 17px;
}
.site-nav a:hover { background: var(--bg-soft); }

/* ---------- Shared type ---------- */
.eyebrow {
  font-family: var(--font-sans); font-size: 13px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .08em; color: var(--ink-2); margin-bottom: 18px;
}
.display { font-size: clamp(42px, 6.2vw, 88px); font-weight: 700; letter-spacing: -0.045em; line-height: .98; }
.headline { font-size: clamp(32px, 4.4vw, 60px); font-weight: 700; letter-spacing: -0.04em; line-height: 1.02; }
.lead { font-size: clamp(17px, 1.4vw, 20px); color: var(--ink-2); max-width: 52ch; margin-top: 28px; }
.section-lead { color: var(--ink-2); max-width: 60ch; margin-top: 20px; font-size: 17px; }
.section-head { max-width: 820px; margin-bottom: clamp(36px, 5vw, 64px); }

/* ---------- Panels ---------- */
.panel {
  background: var(--bg-panel);
  border-radius: var(--radius-xl);
  padding: var(--panel-pad);
  margin-top: var(--gutter);
}

/* ---------- Hero ---------- */
.hero {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--gutter);
  min-height: min(calc(100vh - var(--header-h) - var(--gutter) * 2), 820px);
}
.hero-visual {
  position: relative; border-radius: var(--radius-xl); overflow: hidden; min-height: 560px;
  background: #cfdbc8;
}
.hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(.95); animation: heroIn 1.1s ease both; }
.hero-visual::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(249,249,245,0) 55%, rgba(249,249,245,.22) 100%);
}
@keyframes heroIn { from { opacity: 0; transform: scale(1.04); } to { opacity: 1; transform: none; } }
.hero-copy {
  background: var(--bg-panel); border-radius: var(--radius-xl);
  padding: var(--panel-pad); display: flex; flex-direction: column; justify-content: center;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-top: 40px; color: var(--ink-3); font-size: 14px; }
.hero-meta li { position: relative; padding-left: 16px; }
.hero-meta li::before { content: ""; position: absolute; left: 0; top: .6em; width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); }

/* Floating UI cards */
.ui-card {
  position: absolute; z-index: 2;
  background: rgba(255,255,255,.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,.7); border-radius: 20px; padding: 18px 20px;
  box-shadow: var(--shadow-card); width: min(300px, 70%);
  font-family: var(--font-sans);
}
.ui-card--summary { top: 9%; left: 7%; }
.ui-card--list { top: 40%; right: 6%; }
.ui-card--price { bottom: 10%; left: 10%; width: min(260px, 62%); }
.ui-label { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); font-weight: 600; }
.ui-value { font-size: 28px; font-weight: 700; letter-spacing: -0.03em; margin-top: 6px; }
.ui-value span { font-size: 14px; font-weight: 500; color: var(--ink-2); letter-spacing: 0; }
.ui-sub { font-size: 13px; color: var(--ink-2); margin-top: 8px; display: flex; align-items: center; gap: 8px; }
.ui-bar { height: 6px; border-radius: 6px; background: rgba(22,22,20,.08); margin-top: 14px; overflow: hidden; }
.ui-bar i { display: block; height: 100%; background: var(--accent); border-radius: 6px; }
.ui-list { display: grid; gap: 10px; margin-top: 12px; }
.ui-list li { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 500; }
.ui-list li em { margin-left: auto; font-style: normal; font-size: 12px; color: var(--ink-3); }
.dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.dot--green { background: var(--accent); } .dot--teal { background: var(--teal); } .dot--rose { background: var(--rose); }
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.pill--green { background: var(--teal); color: #1f5c43; }

.float { animation: float 7s ease-in-out infinite; animation-delay: var(--delay, 0s); }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ---------- Stats band ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gutter);
  margin-top: var(--gutter);
}
.stat { background: var(--bg-panel); border-radius: var(--radius-lg); padding: 32px 28px; }
.stat-num { font-family: var(--font-sans); font-size: clamp(48px, 5.5vw, 76px); font-weight: 700; letter-spacing: -0.05em; line-height: 1; }
.stat-label { color: var(--ink-2); margin-top: 12px; font-size: 15px; max-width: 24ch; }

/* ---------- Problem ---------- */
.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.problem-card { background: var(--bg-soft); border-radius: var(--radius-lg); padding: 32px 28px; }
.problem-card .num { font-family: var(--font-serif); font-style: italic; font-size: 34px; color: var(--ink-3); }
.problem-card h3 { font-size: 24px; margin: 20px 0 12px; }
.problem-card p { color: var(--ink-2); }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step { position: relative; padding: 28px 24px 28px; border-top: 2px solid var(--ink); }
.step-day { display: inline-block; font-family: var(--font-sans); font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; background: var(--accent); padding: 4px 10px; border-radius: 999px; }
.step h3 { font-size: 22px; margin: 18px 0 10px; }
.step p { color: var(--ink-2); font-size: 15px; }

/* ---------- Deliverables ---------- */
.deliverables .headline { max-width: 820px; }
.feature-list { margin-top: clamp(36px, 5vw, 64px); display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.feature { display: grid; grid-template-columns: 56px 1fr; gap: 20px; padding: 32px 28px; background: var(--bg-soft); border-radius: var(--radius-lg); }
.feature-icon { font-family: var(--font-serif); font-style: italic; font-size: 28px; color: var(--ink-3); line-height: 1; }
.feature h3 { font-size: 24px; margin-bottom: 8px; }
.feature p { color: var(--ink-2); }


/* ---------- Audience ---------- */
.audience-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.aud-card { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px 24px; }
.aud-card h3 { font-size: 20px; margin-bottom: 12px; }
.aud-card p { color: var(--ink-2); font-size: 15px; }
.aud-card--accent { background: var(--ink); color: #fff; border-color: var(--ink); }
.aud-card--accent p { color: rgba(255,255,255,.7); }

/* ---------- Pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.price-card { position: relative; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 36px 30px; display: flex; flex-direction: column; }
.price-card--featured { background: var(--accent); border-color: var(--accent); }
.price-card h3 { font-size: 22px; }
.price-from { font-family: var(--font-sans); font-size: 40px; font-weight: 700; letter-spacing: -0.04em; margin-top: 14px; }
.price-from span { font-size: 15px; font-weight: 500; color: var(--ink-2); letter-spacing: 0; margin-right: 6px; }
.price-desc { color: var(--ink-2); font-size: 14px; margin-top: 6px; }
.price-card ul { margin: 28px 0 32px; display: grid; gap: 12px; flex: 1; }
.price-card li { position: relative; padding-left: 26px; font-size: 15px; }
.price-card li::before { content: "✓"; position: absolute; left: 0; top: 0; font-weight: 700; }
.badge { position: absolute; top: -12px; left: 30px; background: var(--ink); color: #fff; font-family: var(--font-sans); font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px; }
.price-card--featured .btn-ghost { border-color: var(--ink); }

/* ---------- Trust ---------- */
.trust { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 80px); background: var(--ink); color: #fff; }
.trust .eyebrow { color: rgba(255,255,255,.6); }
.trust-copy > p:last-child { color: rgba(255,255,255,.72); margin-top: 24px; font-size: 17px; max-width: 54ch; }
.trust-list { display: grid; gap: 0; border-top: 1px solid rgba(255,255,255,.15); }
.trust-list li { display: grid; gap: 6px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.15); }
.trust-list strong { font-family: var(--font-sans); font-size: 19px; }
.trust-list span { color: rgba(255,255,255,.65); font-size: 15px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 820px; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 24px 48px 24px 0; position: relative;
  font-family: var(--font-sans); font-weight: 600; font-size: 20px; letter-spacing: -0.01em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(22,22,20,.25);
  display: grid; place-items: center; font-weight: 400; font-size: 22px; transition: transform .25s ease, background .25s ease;
}
.faq-item[open] summary::after { content: "–"; background: var(--accent); border-color: var(--accent); }
.faq-item p { color: var(--ink-2); padding: 0 0 24px; max-width: 68ch; }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 80px); }
.contact-copy > p:nth-of-type(2) { color: var(--ink-2); margin-top: 24px; font-size: 17px; max-width: 48ch; }
.contact-details { font-style: normal; margin-top: 40px; color: var(--ink-2); display: grid; gap: 4px; }
.contact-details strong { color: var(--ink); font-family: var(--font-sans); }
.contact-form { background: var(--bg-soft); border-radius: var(--radius-lg); padding: 32px; display: grid; gap: 18px; }
.form-row { display: grid; gap: 8px; }
.form-row label, .checkbox-row { font-size: 14px; font-weight: 500; color: var(--ink-2); }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; border: 1px solid var(--line); background: #fff; border-radius: 12px; padding: 13px 14px;
  font: inherit; color: var(--ink); transition: border-color .2s ease, box-shadow .2s ease;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(185,229,100,.5); }
.form-row textarea { resize: vertical; }
.checkbox-row { display: flex; gap: 10px; align-items: flex-start; }
.checkbox-row input { margin-top: 3px; accent-color: var(--ink); }
.form-status { font-size: 14px; min-height: 1.4em; }
.form-status.ok { color: #2a6b3f; }
.form-status.err { color: #a33a3a; }
input.invalid, textarea.invalid { border-color: #c75c5c !important; }

/* ---------- Footer ---------- */
.site-footer { margin-top: var(--gutter); background: var(--bg-panel); border-radius: var(--radius-xl); padding: var(--panel-pad) var(--panel-pad) 32px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand p { color: var(--ink-2); margin-top: 16px; max-width: 36ch; font-size: 15px; }
.footer-col { display: grid; gap: 10px; align-content: start; font-size: 15px; }
.footer-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); margin-bottom: 6px; }
.footer-col a { text-decoration: none; color: var(--ink-2); }
.footer-col a:hover, .footer-col .link-btn:hover { color: var(--ink); }
.footer-col .link-btn { color: var(--ink-2); font-size: 15px; }
.footer-col p { color: var(--ink-2); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 13px; }

/* ---------- Cookie banner ---------- */
.cookie-banner {
  position: fixed; left: var(--gutter); right: var(--gutter); bottom: var(--gutter); z-index: 60;
  margin: 0 auto; max-width: 900px;
  background: var(--ink); color: #fff; border-radius: var(--radius-lg); padding: 22px 26px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.5);
  animation: slideUp .5s ease both;
}
.cookie-banner[hidden] { display: none; }
.cookie-text strong { font-family: var(--font-sans); display: block; margin-bottom: 4px; }
.cookie-text p { font-size: 14px; color: rgba(255,255,255,.75); }
.cookie-text a { color: #fff; }
.cookie-actions { display: flex; gap: 10px; flex: none; }
.cookie-banner .btn-ghost { color: #fff; border-color: rgba(255,255,255,.4); }
.cookie-banner .btn-dark { background: var(--accent); color: var(--ink); }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- Legal pages ---------- */
.legal-page { max-width: 860px; margin: 0 auto; }
.legal-page .panel { padding: var(--panel-pad); }
.legal-page h1 { font-size: clamp(36px, 5vw, 64px); font-weight: 700; letter-spacing: -0.04em; }
.legal-page .updated { color: var(--ink-3); font-size: 14px; margin-top: 16px; }
.legal-page h2 { font-size: 24px; margin: 44px 0 14px; }
.legal-page h3 { font-size: 18px; margin: 28px 0 10px; }
.legal-page p, .legal-page li { color: var(--ink-2); }
.legal-page ul, .legal-page ol { padding-left: 22px; list-style: disc; display: grid; gap: 8px; margin: 12px 0; }
.legal-page ol { list-style: decimal; }
.legal-page table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.legal-page th, .legal-page td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--ink-2); }
.legal-page th { color: var(--ink); font-family: var(--font-sans); font-weight: 600; }
.legal-page .back { display: inline-flex; margin-bottom: 28px; text-decoration: none; font-weight: 600; font-family: var(--font-sans); color: var(--ink-2); }
.legal-page .back:hover { color: var(--ink); }
.legal-page .lang-block[hidden] { display: none; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .float { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  :root { --header-h: 68px; }
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-visual { min-height: 440px; order: 2; }
  .hero-copy { order: 1; }
  .problem-grid, .price-grid, .feature-list { grid-template-columns: 1fr; }
  .trust, .contact { grid-template-columns: 1fr; }
  .header-right .btn { display: none; }
  .wordmark { font-size: 22px; }
}
@media (max-width: 600px) {
  body { font-size: 15px; }
  .stats, .steps, .audience-grid, .footer-top { grid-template-columns: 1fr; }
  .hero-visual { min-height: 400px; }
  .ui-card { width: min(260px, 78%); padding: 14px 16px; }
  .ui-card--summary { top: 6%; left: 5%; }
  .ui-card--list { top: 38%; right: 4%; }
  .ui-card--price { bottom: 6%; left: 6%; }
  .ui-value { font-size: 22px; }
  .hero-actions .btn { width: 100%; }
  .contact-form { padding: 22px; }
  .cookie-banner { flex-direction: column; align-items: stretch; padding: 18px; }
  .cookie-actions { justify-content: stretch; }
  .cookie-actions .btn { flex: 1; }
  .faq-item summary { font-size: 17px; }
  .site-footer { padding-bottom: 24px; }
}