/* ============================================================================
   Barbers Crew — NFC review card. Clean, sleek, monochrome (black & white).
   Client-specific values (name, links) live in the CONFIG block in index.html
   and are applied by app.js. This file is the fixed design — do not edit per
   client.
   ============================================================================ */

:root {
  /* Monochrome palette — pure black canvas + white ink. */
  --base:      #0A0A0A;            /* deep page backdrop */
  --surface:   #141414;            /* card panel (top of gradient) */
  --surface-2: #0F0F0F;            /* card panel (bottom of gradient) */
  --fg:        #FFFFFF;
  --muted:     #9A9A9A;
  --hairline:  rgba(255, 255, 255, 0.12);

  --radius: 14px;
  --card-radius: 26px;
  --touch: 48px;                   /* minimum touch target (buttons are larger) */
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  color: var(--fg);
  /* System font stack — no web fonts, no network requests for type. */
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
               Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;

  /* Near-black backdrop with a faint top light. */
  background:
    radial-gradient(120% 90% at 50% -10%, #1A1A1A 0%, var(--base) 55%) fixed,
    var(--base);

  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding:
    max(20px, env(safe-area-inset-top))
    max(18px, env(safe-area-inset-right))
    max(20px, env(safe-area-inset-bottom))
    max(18px, env(safe-area-inset-left));
  overflow-y: auto;
  position: relative;
}

/* ---- Ambient background decoration (soft light + fine grid) --------------- */
.bg-decor { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.bg-decor::before {
  /* single soft overhead spotlight */
  content: "";
  position: absolute;
  top: -34vmax; left: 50%;
  width: 80vmax; height: 80vmax;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.06), transparent 62%);
  filter: blur(50px);
}
.bg-decor::after {
  /* faint vignette to seat the card */
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 80% at 50% 45%, transparent 55%, rgba(0,0,0,0.6) 100%);
}

/* ---- Card: a floating, framed panel --------------------------------------- */
.card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  padding: clamp(36px, 8vw, 48px) clamp(24px, 7vw, 38px);
  display: flex;
  flex-direction: column;
  gap: clamp(28px, 6.5vw, 38px);

  background:
    linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  border-radius: var(--card-radius);
  box-shadow:
    0 30px 70px -20px rgba(0, 0, 0, 0.85),
    0 0 0 1px rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

/* Fine dot-grid texture, fading toward the centre so text stays clean. */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1.4px);
  background-size: 22px 22px;
  -webkit-mask: radial-gradient(115% 90% at 50% 0%, #000 6%, transparent 60%);
          mask: radial-gradient(115% 90% at 50% 0%, #000 6%, transparent 60%);
  pointer-events: none;
}

/* Crisp hairline border (white -> faint). */
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(160deg,
              rgba(255, 255, 255, 0.28) 0%,
              rgba(255, 255, 255, 0.06) 40%,
              rgba(255, 255, 255, 0.02) 65%,
              rgba(255, 255, 255, 0.18) 100%);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}

/* Soft highlight inside the top of the card (depth). */
.card-glow {
  position: absolute;
  top: -42%;
  left: 50%;
  width: 130%;
  height: 90%;
  transform: translateX(-50%);
  background: radial-gradient(50% 50% at 50% 50%, rgba(255, 255, 255, 0.10), transparent 70%);
  pointer-events: none;
}

/* ---- Hero ------------------------------------------------------------------ */
.hero {
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.logo {
  display: block;
  width: min(74%, 240px);
  height: auto;
}

.eyebrow {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--fg);
  padding: 7px 15px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 0 1px var(--hairline);
}

.lede {
  margin: 0;
  max-width: 30ch;
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--muted);
}

/* Thin rule under the hero — echoes the logo's bars. */
.rule {
  width: 56px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.85), transparent);
  opacity: 0.9;
}

/* ---- Action buttons -------------------------------------------------------- */
.actions {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 11px;

  min-height: 62px;               /* well above the 48px minimum */
  padding: 16px 22px;
  border-radius: var(--radius);

  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  user-select: none;
  overflow: hidden;

  transition: transform 220ms ease, box-shadow 220ms ease,
              background-color 220ms ease, border-color 220ms ease, filter 220ms ease;
}

/* Primary: solid white, black ink — the review CTA. */
.btn-primary {
  background: linear-gradient(180deg, #FFFFFF 0%, #ECECEC 100%);
  color: #0A0A0A;
  box-shadow: 0 12px 30px -12px rgba(255, 255, 255, 0.35);
}

/* Ghost: transparent with a hairline outline — the social / site links. */
.btn-ghost {
  background: rgba(255, 255, 255, 0.02);
  color: var(--fg);
  box-shadow: inset 0 0 0 1px var(--hairline);
}

/* Moving sheen across the primary button. */
.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 45%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(0, 0, 0, 0.06), transparent);
  transform: skewX(-18deg);
  animation: sheen 5.5s ease-in-out infinite;
}

@keyframes sheen {
  0%, 22%  { left: -60%; }
  55%, 100% { left: 130%; }
}

.btn-icon {
  position: relative;
  width: 21px;
  height: 21px;
  flex: 0 0 auto;
}
.btn-label { position: relative; }

/* Hover: subtle lift. */
@media (hover: hover) {
  .btn:hover { transform: translateY(-2px); }
  .btn-primary:hover { box-shadow: 0 18px 38px -14px rgba(255, 255, 255, 0.45); }
  .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.06);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.26);
  }
}

.btn:active { transform: translateY(0) scale(0.99); filter: brightness(0.98); }

/* Visible keyboard focus. */
.btn:focus-visible {
  outline: 2px solid #FFFFFF;
  outline-offset: 3px;
}

/* ---- Footer --------------------------------------------------------------- */
.footer {
  position: relative;
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}
.footer p { margin: 0; }

/* ---- Staggered entrance ---------------------------------------------------- */
.logo, .eyebrow, .lede, .rule, .actions .btn, .footer {
  animation: rise 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.logo             { animation-delay: 0.05s; }
.eyebrow          { animation-delay: 0.13s; }
.lede             { animation-delay: 0.20s; }
.rule             { animation-delay: 0.27s; }
.actions .btn:nth-child(1) { animation-delay: 0.34s; }
.actions .btn:nth-child(2) { animation-delay: 0.41s; }
.actions .btn:nth-child(3) { animation-delay: 0.48s; }
.actions .btn:nth-child(4) { animation-delay: 0.55s; }
.footer           { animation-delay: 0.6s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

/* ---- Larger screens: a touch more air -------------------------------------- */
@media (min-width: 768px) {
  .card { max-width: 448px; }
  .btn { min-height: 66px; font-size: 1.08rem; }
}

/* ---- Short viewports (small phones, or embedded in a small preview frame):
   shrink everything so the whole card fits without scrolling. Height-based
   (not width-based) because the failure mode is vertical space running out,
   whether that's a short phone or a compact iframe preview. Buttons stay at
   48px, the touch-target floor. ------------------------------------------- */
@media (max-height: 700px) {
  .card { padding: clamp(20px, 5vw, 32px) clamp(18px, 5vw, 28px); gap: clamp(16px, 4vw, 22px); }
  .hero { gap: 10px; }
  .logo { width: min(60%, 190px); }
  .eyebrow { font-size: 0.6rem; padding: 5px 12px; }
  .lede { font-size: 0.86rem; }
  .actions { gap: 9px; }
  .btn { min-height: 48px; padding: 11px 18px; font-size: 0.9rem; }
  .btn-icon { width: 18px; height: 18px; }
  .footer { font-size: 0.72rem; }
}

/* ---- Respect reduced-motion ----------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  .logo, .eyebrow, .lede, .rule, .actions .btn, .footer { opacity: 1; transform: none; }
  .btn:hover, .btn:active { transform: none; }
}