/* ============================================================
   PROMPTLYS DESIGN SYSTEM
   Frame.io-inspired dark, premium AI brand
   ============================================================ */

:root {
  --bg: #050507;
  --bg-elev: #0d0d12;
  --bg-elev-2: #14141a;
  --bg-elev-3: #1a1a22;
  --border: rgba(255,255,255,0.06);
  --border-strong: rgba(255,255,255,0.12);

  --text-primary: #e8e8ec;
  --text-secondary: #8a8a92;
  --text-muted: #4a4a52;

  --accent: #a78bfa;
  --accent-2: #6366f1;
  --accent-glow: rgba(167,139,250,0.25);
  --accent-soft: rgba(167,139,250,0.08);
  --warm: #fb923c;

  --green: #34d399;
  --red: #f87171;
  --amber: #fbbf24;

  --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --max-w: 1200px;
  --max-w-narrow: 880px;
  --gutter: clamp(20px, 5vw, 40px);
  --section-y: clamp(80px, 14vw, 160px);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 20px;
  --radius-sm: 14px;
}

/* ============================================================
   BASE / RESET
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

::selection { background: var(--accent); color: #fff; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-elev-2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #1f1f28; }

/* ============================================================
   LAYOUT
   ============================================================ */
.wrap {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap-narrow {
  max-width: var(--max-w-narrow);
}

section {
  padding-block: var(--section-y);
  position: relative;
}

section.tight {
  padding-block: clamp(60px, 10vw, 100px);
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
.eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  background: var(--accent-soft);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.display-1 {
  font-size: clamp(40px, 7vw, 88px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.02;
  text-wrap: balance;
}

.display-2 {
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  text-wrap: balance;
}

.display-3 {
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
  text-wrap: balance;
}

.body-lg {
  font-size: clamp(16px, 1.4vw, 19px);
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 56ch;
  text-wrap: pretty;
}

.body-md {
  font-size: 15px;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.7;
}

.grad-text {
  background: linear-gradient(135deg, #fff 0%, #c4b5fd 50%, #a78bfa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.grad-text-warm {
  background: linear-gradient(135deg, #fff 0%, #fcd9b8 40%, #fb923c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -0.005em;
  border: none;
  transition: transform 200ms var(--ease), background 200ms, box-shadow 200ms, border-color 200ms;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 32px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(167,139,250,0.4);
}

.btn-glass {
  background: rgba(255,255,255,0.04);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.btn-glass:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--bg-elev);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn svg { width: 16px; height: 16px; }
.btn-sm { padding: 10px 18px; font-size: 13px; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background 300ms ease, backdrop-filter 300ms ease, border-color 300ms ease;
}

.nav.scrolled {
  background: rgba(5,5,7,0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.logo img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 200ms;
  position: relative;
}
.nav-links a:hover { color: var(--text-primary); }

.nav-links a.active {
  color: var(--text-primary);
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.nav-cta { display: flex; gap: 10px; align-items: center; }
.nav-cta .btn { padding: 10px 18px; font-size: 13px; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}
.nav-toggle svg { width: 18px; height: 18px; }

@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-cta .btn-glass { display: none; }
  .nav-toggle { display: flex; }
}

/* Mobile menu drawer */
.nav-mobile {
  position: fixed;
  inset: 0;
  background: rgba(5,5,7,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 200;
  display: none;
  flex-direction: column;
  padding: 80px 32px 32px;
  opacity: 0;
  transition: opacity 300ms ease;
}
.nav-mobile.open { display: flex; opacity: 1; }
.nav-mobile a {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.nav-mobile-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-mobile-close svg { width: 18px; height: 18px; }

/* ============================================================
   PAGE HERO (smaller than landing hero)
   ============================================================ */
.page-hero {
  padding-block: 180px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 800px;
  height: 800px;
  transform: translate(-50%, -55%);
  background: radial-gradient(circle, rgba(167,139,250,0.14) 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 65%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.page-hero h1 {
  animation: fadeUp 1s var(--ease) 0.1s both;
}
.page-hero .body-lg {
  max-width: 620px;
  animation: fadeUp 1s var(--ease) 0.3s both;
}
.page-hero .eyebrow {
  animation: fadeUp 1s var(--ease) both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); filter: blur(8px); }
  to   { opacity: 1; transform: translateY(0); filter: blur(0); }
}

/* ============================================================
   SECTION HEAD (centered)
   ============================================================ */
.section-head {
  max-width: 720px;
  margin: 0 auto 64px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.section-head .body-lg {
  text-align: center;
  max-width: 56ch;
}

/* ============================================================
   CARD
   ============================================================ */
.card {
  position: relative;
  padding: 36px 32px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 400ms var(--ease), border-color 400ms, background 400ms;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 80%;
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 400ms;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--bg-elev-2);
}
.card:hover::before { opacity: 0.6; }

.card h3 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 24px;
}
.card-icon svg { width: 22px; height: 22px; }

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.form-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 500;
  outline: none;
  transition: border-color 200ms, box-shadow 200ms, background 200ms;
  font-family: inherit;
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.6;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: rgba(167,139,250,0.5);
  background: var(--bg-elev-2);
  box-shadow: 0 0 0 4px rgba(167,139,250,0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a8a92' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 44px;
}

.form-help {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
  line-height: 1.5;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  padding: 64px 0 40px;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

@media (max-width: 720px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .footer-brand { grid-column: 1 / -1; }
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-secondary);
  max-width: 280px;
  margin-top: 14px;
  line-height: 1.6;
}

.footer-col h5 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-col a {
  font-size: 13.5px;
  color: var(--text-secondary);
  transition: color 200ms;
}
.footer-col a:hover { color: var(--text-primary); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-social {
  display: flex;
  gap: 14px;
}
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  transition: color 200ms, background 200ms, border-color 200ms;
}
.footer-social a:hover {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: rgba(167,139,250,0.3);
}
.footer-social svg { width: 16px; height: 16px; }

/* ============================================================
   REVEAL ON SCROLL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 800ms var(--ease), transform 800ms var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}