/* AdsByPrompt — design system: dark, high-tech, glass + neon, 3D depth */
@import url("https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600&display=swap");

:root {
  --display: "Sora", "Inter", system-ui, sans-serif;
  --body: "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;

  /* dark is the default look */
  --bg: #06060c;
  --bg-2: #0b0b16;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-solid: #11111d;
  --surface-2: rgba(255, 255, 255, 0.08);
  --ink: #eef0ff;
  --ink-2: #b7bad3;
  --mute: #7c80a0;
  --line: rgba(255, 255, 255, 0.10);
  --cyan: #22d3ee;
  --violet: #8b5cf6;
  --pink: #f472b6;
  --accent: #a78bfa;
  --accent-ink: #ffffff;
  --accent-soft: rgba(139, 92, 246, 0.16);
  --violet-soft: rgba(34, 211, 238, 0.14);
  --ok: #34d399;
  --grad: linear-gradient(120deg, var(--cyan), var(--violet) 50%, var(--pink));
  --glow: 0 0 0 1px rgba(167, 139, 250, .35), 0 10px 40px -8px rgba(139, 92, 246, .55), 0 0 60px -20px rgba(34, 211, 238, .6);
  --shadow: 0 1px 0 rgba(255,255,255,.06) inset, 0 20px 50px -20px rgba(0, 0, 0, .7);
  --radius: 20px;
  --radius-sm: 12px;
  --max: 1180px;
  --blur: saturate(160%) blur(18px);
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f4f5fb; --bg-2: #eceefa; --surface: rgba(255,255,255,.72); --surface-solid: #ffffff; --surface-2: rgba(20,20,60,.06);
  --ink: #0d0f24; --ink-2: #3c4068; --mute: #6b6f92; --line: rgba(20, 20, 60, .12);
  --accent: #7c3aed; --accent-soft: rgba(124, 58, 237, .10); --violet-soft: rgba(8, 145, 178, .10); --ok: #059669;
  --glow: 0 0 0 1px rgba(124,58,237,.25), 0 10px 30px -10px rgba(124,58,237,.45);
  --shadow: 0 1px 0 rgba(255,255,255,.8) inset, 0 18px 40px -22px rgba(20, 20, 60, .35);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--body); overflow-x: clip; position: relative; }
/* aurora: slow-moving colour fields behind everything */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(38% 32% at 18% 22%, rgba(34, 211, 238, .20), transparent 70%),
    radial-gradient(40% 36% at 82% 18%, rgba(139, 92, 246, .26), transparent 70%),
    radial-gradient(42% 38% at 60% 88%, rgba(244, 114, 182, .16), transparent 70%);
  filter: blur(20px); animation: aurora 26s ease-in-out infinite alternate;
}
/* fine tech grid, fading out towards the bottom */
body::after {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px; mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
}
:root[data-theme="light"] body::after { background-image: linear-gradient(rgba(20,20,60,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(20,20,60,.05) 1px, transparent 1px); }
@keyframes aurora { 0% { transform: translate3d(0,0,0) scale(1.15); } 100% { transform: translate3d(-3%, 2%, 0) scale(1.25); } }
@media (prefers-reduced-motion: reduce) { body::before { animation: none; } * { animation-duration: .001s !important; transition-duration: .001s !important; } }

img, video { max-width: 100%; display: block; }
a { color: inherit; }
::selection { background: rgba(139, 92, 246, .45); }
h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 1.08; margin: 0 0 .45em; letter-spacing: -.025em; }
h1 { font-size: clamp(40px, 6.2vw, 76px); font-weight: 800; }
h2 { font-size: clamp(28px, 4vw, 46px); }
h3 { font-size: 20px; letter-spacing: -.01em; }
p { margin: 0 0 1em; color: var(--ink-2); }
code { font-family: var(--mono); font-size: .9em; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.eyebrow { font-family: var(--mono); font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 14px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; display: inline-block; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 19px; max-width: 640px; }
.mute { color: var(--mute); }
.small { font-size: 14px; }
.center { text-align: center; }
.center.eyebrow, .eyebrow.center { display: block; }

/* nav: floating glass bar */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(6, 6, 12, .55); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border-bottom: 1px solid var(--line); }
:root[data-theme="light"] .nav { background: rgba(244, 245, 251, .7); }
.nav .wrap { display: flex; align-items: center; gap: 24px; height: 66px; }
.logo { font-family: var(--display); font-weight: 800; font-size: 21px; letter-spacing: -.03em; text-decoration: none; display: flex; align-items: center; gap: 10px; }
.logo i { width: 28px; height: 28px; border-radius: 9px; display: inline-block; position: relative; transform: perspective(80px) rotateX(18deg) rotateY(-18deg);
  background: var(--grad); box-shadow: 0 6px 18px -4px rgba(139,92,246,.8), inset 0 1px 0 rgba(255,255,255,.5); }
.logo i::after { content: ""; position: absolute; inset: 7px; border-radius: 4px; background: rgba(6,6,12,.85); clip-path: polygon(25% 15%, 85% 50%, 25% 85%); }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { text-decoration: none; font-size: 14px; color: var(--ink-2); font-weight: 500; transition: color .15s; }
.nav-links a:hover, .nav-links a.on { color: var(--ink); }
.nav .btn { margin-left: 6px; }
.menu-btn { display: none; margin-left: auto; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; color: var(--ink); font: inherit; }
@media (max-width: 860px) {
  .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--surface-solid); border-bottom: 1px solid var(--line); padding: 8px 20px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav .btn.hide-sm, .hide-sm { display: none !important; }
  .menu-btn { display: block; }
}

/* buttons: gradient with glow, glass ghost */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 999px; padding: 12px 22px;
  font: 600 15px var(--body); text-decoration: none; cursor: pointer; position: relative; transition: transform .15s, box-shadow .2s, background .2s, filter .2s; }
.btn:active { transform: translateY(1px) scale(.99); }
.btn-primary { background: var(--grad); background-size: 160% 100%; color: #fff; box-shadow: var(--glow); }
.btn-primary:hover { background-position: 100% 0; transform: translateY(-2px); filter: brightness(1.08); }
.btn-ghost { background: var(--surface); color: var(--ink); border: 1px solid var(--line); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); }
.btn-ghost:hover { border-color: rgba(167,139,250,.55); box-shadow: 0 0 0 1px rgba(167,139,250,.25), 0 8px 30px -12px rgba(139,92,246,.6); }
.btn-lg { padding: 15px 30px; font-size: 16px; }
.btn[disabled] { opacity: .4; cursor: not-allowed; box-shadow: none; transform: none; filter: grayscale(.4); }

/* layout */
section { padding: 90px 0; }
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 900px) { .g3, .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .g2, .g3, .g4 { grid-template-columns: minmax(0, 1fr); } section { padding: 60px 0; } }

/* glass cards with a gradient hairline edge; .tilt ones lean towards the cursor (site.js) */
.card { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow);
  backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); transition: transform .25s ease, box-shadow .25s, border-color .25s; transform-style: preserve-3d; }
.card::before { content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; pointer-events: none; opacity: 0; transition: opacity .25s;
  background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
.card:hover::before { opacity: .9; }
.card:hover { box-shadow: var(--shadow), 0 30px 60px -30px rgba(139, 92, 246, .55); }
.card h3 { margin-bottom: 8px; }
.pill { display: inline-flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: .04em; padding: 5px 10px;
  border-radius: 999px; background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--line); }
.pill.accent { background: var(--accent-soft); color: #c4b5fd; border-color: rgba(167,139,250,.35); }
.pill.violet { background: var(--violet-soft); color: #67e8f9; border-color: rgba(34,211,238,.35); }
:root[data-theme="light"] .pill.accent { color: #6d28d9; } :root[data-theme="light"] .pill.violet { color: #0e7490; }
.icon { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; font-size: 22px; margin-bottom: 14px;
  background: linear-gradient(145deg, rgba(139,92,246,.35), rgba(34,211,238,.15)); border: 1px solid rgba(167,139,250,.35);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.2), 0 10px 24px -10px rgba(139,92,246,.8); transform: translateZ(30px); }
.icon.v { background: linear-gradient(145deg, rgba(34,211,238,.35), rgba(244,114,182,.15)); border-color: rgba(34,211,238,.35); }
.divider { height: 1px; background: var(--line); margin: 0; border: 0; }
.draft { border: 1px dashed rgba(244,114,182,.55); background: rgba(244,114,182,.08); color: var(--ink); border-radius: var(--radius-sm); padding: 10px 14px; font-size: 14px; }

/* forms */
label.f { display: block; font-weight: 600; font-size: 13px; margin: 0 0 8px; color: var(--ink-2); letter-spacing: .01em; }
input[type=text], input[type=email], input[type=password], input[type=number], textarea, select {
  width: 100%; font: inherit; color: var(--ink); background: rgba(255,255,255,.04); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px; transition: border-color .15s, box-shadow .15s; }
:root[data-theme="light"] input[type=text], :root[data-theme="light"] input[type=email], :root[data-theme="light"] input[type=password], :root[data-theme="light"] textarea, :root[data-theme="light"] select { background: #fff; }
textarea { min-height: 120px; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: none; border-color: rgba(167,139,250,.7); box-shadow: 0 0 0 4px rgba(139,92,246,.18); }
.btn:focus-visible, .choice:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.drop { display: block; border: 1.5px dashed rgba(167,139,250,.45); border-radius: var(--radius); padding: 28px; text-align: center; cursor: pointer;
  background: linear-gradient(180deg, rgba(139,92,246,.06), rgba(34,211,238,.03)); transition: border-color .15s, background .15s, box-shadow .2s; }
.drop:hover, .drop.over { border-color: var(--cyan); background: rgba(34,211,238,.08); box-shadow: 0 0 40px -12px rgba(34,211,238,.6); }
.drop input { display: none; }
.seg { display: inline-flex; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 4px; gap: 4px; flex-wrap: wrap; }
.seg button { border: 0; background: transparent; color: var(--ink-2); font: 600 13px var(--body); padding: 8px 14px; border-radius: 999px; cursor: pointer; transition: background .15s, color .15s; }
.seg button.on { background: var(--grad); color: #fff; box-shadow: 0 6px 18px -8px rgba(139,92,246,.9); }

/* footer */
footer.site { border-top: 1px solid var(--line); padding: 40px 0; margin-top: 40px; background: rgba(0,0,0,.2); }
footer.site .wrap { display: flex; gap: 24px; flex-wrap: wrap; justify-content: space-between; align-items: center; }
footer.site a { text-decoration: none; color: var(--mute); font-size: 14px; margin-right: 18px; }
footer.site a:hover { color: var(--ink); }
.theme-toggle { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; color: var(--ink-2); font: 500 12px var(--mono); cursor: pointer; }

/* scroll reveal (site.js adds .in) */
.reveal { opacity: 0; transform: translateY(24px) scale(.98); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* pop-ups, warnings and errors in the dark look */
dialog { background: var(--surface-solid) !important; color: var(--ink) !important; border: 1px solid var(--line) !important;
  box-shadow: 0 40px 100px -20px rgba(0,0,0,.8), 0 0 60px -20px rgba(139,92,246,.6) !important; }
dialog::backdrop { background: rgba(3, 3, 8, .7) !important; backdrop-filter: blur(4px); }
.err { background: rgba(248, 113, 113, .12) !important; color: #fca5a5 !important; border: 1px solid rgba(248,113,113,.35); }
.warn { background: rgba(251, 191, 36, .10) !important; color: #fcd34d !important; border-color: rgba(251,191,36,.35) !important; }
:root[data-theme="light"] .err { color: #b91c1c !important; } :root[data-theme="light"] .warn { color: #92400e !important; }
table th { font-family: var(--mono); }