/* ============================================================
   InSeven Studio — site styles
   Rebrand: edit the CSS variables in :root (one place).
   ============================================================ */

:root {
  --bg: #ffffff;
  --bg-alt: #f4f6f9;
  --ink: #10161f;
  --ink-soft: #4b5563;
  --line: #e4e8ee;
  --accent: #ffd166;
  --accent-ink: #10161f;
  --brand: #10161f;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 22, 31, .06), 0 8px 24px rgba(16, 22, 31, .06);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.4rem, 6vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 800; margin-bottom: 12px; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { color: var(--ink-soft); }
a { color: var(--ink); text-decoration: none; }
.accent { color: var(--accent); }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink-soft);
  margin-bottom: 10px;
}

.lead { font-size: 1.15rem; max-width: 46em; }
.fine { font-size: 0.85rem; color: var(--ink-soft); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  border: 1px solid var(--brand);
  border-radius: 999px;
  padding: 12px 26px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(16,22,31,.18); }
.btn-sm { padding: 8px 18px; font-size: 0.88rem; }
.btn-lg { padding: 15px 34px; font-size: 1.02rem; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); box-shadow: none; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { max-width: 1080px; margin: 0 auto; padding: 0 24px; height: 64px; display: flex; align-items: center; justify-content: space-between; }
.brand { font-weight: 800; font-size: 1.3rem; letter-spacing: -0.02em; }
.brand-dot { color: var(--accent); }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a:not(.btn) { font-size: 0.92rem; font-weight: 500; color: var(--ink-soft); }
.nav-links a:not(.btn):hover { color: var(--ink); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--ink); margin: 4px 0; border-radius: 2px; transition: .2s; }

/* ---------- Hero ---------- */
.hero { padding: 96px 0 64px; text-align: center; }
.hero h1 { margin: 8px 0 18px; }
.hero .lead { margin: 0 auto 30px; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.trust { margin-top: 22px; font-size: 0.85rem; color: var(--ink-soft); }

/* ---------- Strip ---------- */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 28px 0; background: var(--bg-alt); }
.strip-label { text-align: center; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--ink-soft); margin-bottom: 16px; }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.chips li { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 7px 16px; font-size: 0.85rem; font-weight: 500; }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 { max-width: 24em; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; margin-top: 40px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 14px;
}
.card .price { font-size: 1.5rem; font-weight: 800; }
.card .price span { font-size: 0.9rem; font-weight: 500; color: var(--ink-soft); }
.checks { list-style: none; display: flex; flex-direction: column; gap: 9px; flex: 1; }
.checks li { padding-left: 26px; position: relative; font-size: 0.92rem; color: var(--ink-soft); }
.checks li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink);
  font-size: 0.72rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- Steps ---------- */
.steps { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 22px; margin-top: 40px; counter-reset: step; }
.steps li { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.step-num { display: inline-flex; width: 34px; height: 34px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 700; align-items: center; justify-content: center; margin-bottom: 14px; font-size: 0.95rem; }
.steps h3 { margin-bottom: 6px; }
.steps p { font-size: 0.92rem; }

/* ---------- Pricing ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 22px; margin-top: 40px; }
.price-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; background: #fff; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 14px; }
.price-card .big { font-size: 2.4rem; font-weight: 800; }
.price-note { font-size: 0.85rem; color: var(--ink-soft); }
.price-card .checks { flex: 1; }
.fine { margin-top: 18px; text-align: center; }

/* ---------- Work demos ---------- */
.demo-shot { height: 170px; border-radius: 10px; position: relative; overflow: hidden; display: block; }
.demo-shot img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.demo-shot span { position: absolute; top: 12px; left: 12px; z-index: 2; background: rgba(16,22,31,.8); color: #fff; font-size: 0.72rem; letter-spacing: 0.06em; padding: 4px 10px; border-radius: 999px; text-transform: uppercase; }

/* ---------- FAQ ---------- */
.faq { margin-top: 32px; display: flex; flex-direction: column; gap: 12px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.faq summary { padding: 18px 22px; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::after { content: "+"; font-size: 1.3rem; color: var(--ink-soft); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 22px 18px; font-size: 0.94rem; }

/* ---------- Contact ---------- */
.cta { background: var(--brand); color: #fff; }
.cta .eyebrow { color: rgba(255,255,255,.6); }
.cta h2 { color: #fff; }
.cta .lead { color: rgba(255,255,255,.8); margin-bottom: 30px; }
.form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form input, .form textarea {
  width: 100%; padding: 14px 16px; border-radius: 10px;
  border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.08);
  color: #fff; font: inherit; font-size: 0.95rem;
}
.form input::placeholder, .form textarea::placeholder { color: rgba(255,255,255,.5); }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--accent); background: rgba(255,255,255,.12); }
.form .btn { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.cta .fine, .cta .fine a { color: rgba(255,255,255,.6); }
.cta .fine a { text-decoration: underline; }

/* ---------- Footer ---------- */
.footer { background: #0b1017; color: #9aa3af; padding: 56px 0 32px; }
.footer .brand { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; margin-bottom: 40px; }
.footer h4 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 14px; }
.footer a { display: block; color: #9aa3af; font-size: 0.9rem; margin-bottom: 8px; }
.footer a:hover { color: #fff; }
.footer .fine { color: #6b7280; }
.legal { border-top: 1px solid #1c2530; padding-top: 22px; text-align: center; margin-top: 0; }
.legal a { display: inline; margin: 0 6px; }
.legal a:hover { color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; gap: 0; padding: 12px 24px 20px;
  }
  .nav-links.open { display: flex; }
  .nav-links a:not(.btn) { padding: 12px 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav-links a:not(.btn):last-child { border-bottom: 0; }
  .nav-links .btn { margin-top: 8px; align-self: flex-start; }
  .hero { padding: 64px 0 48px; }
  .section { padding: 64px 0; }
}