/* ===== Design tokens ===== */
:root {
  --yellow: #ffbc26;       /* primary */
  --yellow-dark: #e6a610;
  --red: #da251d;          /* secondary */
  --red-dark: #b71f14;
  --ink: #1a1a1a;
  --slate: #5b6470;
  --bg: #ffffff;
  --bg-soft: #faf7f2;
  --card: #ffffff;
  --line: #ececec;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-soft: 0 4px 16px rgba(0, 0, 0, 0.06);
  --maxw: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Gabarito", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .brand-name {
  font-family: "Paytone One", "Gabarito", sans-serif;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin: 0 0 14px;
}
.section-title.center { text-align: center; margin-bottom: 40px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-name { font-size: 1.35rem; color: var(--ink); }
.brand-name.small { font-size: 1.1rem; }

.brand-logo {
  width: 38px;
  height: 38px;
  object-fit: contain;
  flex-shrink: 0;
}

.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--slate); font-weight: 500; transition: color 0.15s; }
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  background: var(--yellow);
  color: var(--ink) !important;
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 600;
}
.nav-cta:hover { background: var(--yellow-dark); }

/* ===== Hero ===== */
.hero {
  background:
    radial-gradient(1100px 480px at 75% -10%, rgba(255, 188, 38, 0.18), transparent 60%),
    var(--bg-soft);
  padding: 72px 0 84px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  color: var(--red);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.hero-title { font-size: clamp(2.2rem, 5.2vw, 3.6rem); margin: 0 0 18px; }
.hero-sub { font-size: 1.12rem; color: var(--slate); margin: 0 0 28px; max-width: 36ch; }

/* Email form */
.signup-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 480px;
}
.signup-form input {
  flex: 1 1 220px;
  padding: 14px 16px;
  font-size: 1rem;
  font-family: inherit;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  background: #fff;
}
.signup-form input:focus {
  border-color: var(--yellow);
  box-shadow: 0 0 0 4px rgba(255, 188, 38, 0.25);
}
.signup-form button {
  padding: 14px 26px;
  font-size: 1rem;
  font-family: inherit;
  font-weight: 600;
  color: var(--ink);
  background: var(--yellow);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
}
.signup-form button:hover { background: var(--yellow-dark); }
.signup-form button:active { transform: translateY(1px); }
.form-msg {
  flex: 1 1 100%;
  margin: 4px 4px 0;
  font-size: 0.92rem;
  min-height: 1.2em;
}
.form-msg.ok { color: #1c7c3a; }
.form-msg.err { color: var(--red); }
.hero-note { margin: 14px 0 0; font-size: 0.88rem; color: var(--slate); }

/* ===== Phone mockup ===== */
.hero-visual, .how-visual, .feature-stage { display: flex; justify-content: center; }
.phone-frame {
  width: 270px;
  aspect-ratio: 9 / 19;
  background: #111;
  border-radius: 38px;
  padding: 12px;
  box-shadow: var(--shadow);
}
.media-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 28px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.10) 0 12px, transparent 12px 24px),
    linear-gradient(160deg, var(--yellow), var(--red));
}

/* ===== How it works ===== */
.how { padding: 84px 0; }
.how-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 56px;
  align-items: center;
}
.how-copy p { color: var(--slate); font-size: 1.08rem; }

.feedback-card {
  margin-top: 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-soft);
  max-width: 420px;
}
.feedback-label { margin: 0; font-size: 0.85rem; color: var(--slate); text-transform: uppercase; letter-spacing: 0.05em; }
.feedback-said {
  font-family: "Paytone One", sans-serif;
  font-size: 1.6rem;
  margin: 4px 0 14px;
}
.feedback-note {
  background: rgba(218, 37, 29, 0.08);
  border-left: 3px solid var(--red);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.98rem;
}
.feedback-note strong { color: var(--red-dark); }
.feedback-help { margin: 14px 0 0; font-size: 0.95rem; }

/* ===== Features carousel ===== */
.features { padding: 84px 0; background: var(--bg-soft); }
.features-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}
.feature-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.feature-item { border-radius: var(--radius); transition: background 0.2s; }
.feature-item.is-active { background: var(--card); box-shadow: var(--shadow-soft); }

.feature-btn {
  display: flex;
  gap: 16px;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 20px;
  cursor: pointer;
  font-family: inherit;
  align-items: stretch;
}
.feature-progress {
  flex: 0 0 4px;
  width: 4px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
  position: relative;
}
.feature-progress-fill {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 0%;
  background: var(--red);
  border-radius: 999px;
}
.is-active .feature-progress-fill { /* height animated via JS */ }

.feature-text { display: flex; flex-direction: column; gap: 4px; }
.feature-name {
  font-family: "Paytone One", sans-serif;
  font-size: 1.15rem;
  color: var(--slate);
  transition: color 0.2s;
}
.is-active .feature-name { color: var(--ink); }
.feature-desc { font-size: 0.98rem; color: var(--slate); }

/* ===== Collaborate ===== */
.collaborate { padding: 84px 0; }
.collaborate-card {
  display: flex;
  align-items: center;
  gap: 36px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 44px;
}
.collaborate-photo img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #fff;
  box-shadow: var(--shadow-soft);
}
.collaborate-copy p { color: var(--slate); max-width: 52ch; }
.email-btn {
  display: inline-block;
  margin-top: 14px;
  background: var(--yellow);
  color: var(--ink);
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  transition: background 0.15s;
}
.email-btn:hover { background: var(--yellow-dark); }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0; }
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-inner p { margin: 0; color: var(--slate); font-size: 0.9rem; }

/* ===== Responsive ===== */
@media (max-width: 860px) {
  .nav-links a:not(.nav-cta) { display: none; }

  .hero { padding: 48px 0 56px; }
  .hero-grid,
  .how-grid,
  .features-grid { grid-template-columns: 1fr; gap: 40px; }

  .hero-copy { text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .signup-form { margin: 0 auto; }
  .hero-visual { order: -1; }

  .how-visual { order: -1; }
  .feedback-card { margin-left: auto; margin-right: auto; }

  .collaborate-card { flex-direction: column; text-align: center; padding: 32px 22px; }
  .collaborate-copy p { margin-left: auto; margin-right: auto; }
}

@media (max-width: 460px) {
  .phone-frame { width: 230px; }
  .signup-form button { flex: 1 1 100%; }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .feature-progress-fill { transition: none !important; }
}