/* ============================================================
   PrimeShine AutoCare — Design System
   Dark · techy · fluid. Electric blue/cyan on cool slate-black.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap');

:root {
  /* surfaces — cool slate-black */
  --bg:        oklch(0.16 0.014 248);
  --bg-1:      oklch(0.185 0.016 248);
  --bg-2:      oklch(0.225 0.018 248);
  --line:      oklch(0.30 0.02 248);
  --line-soft: oklch(0.26 0.018 248 / 0.6);

  /* text */
  --fg:    oklch(0.97 0.004 240);
  --muted: oklch(0.72 0.012 245);
  --faint: oklch(0.55 0.012 245);

  /* accents — same L/C, varied hue (electric blue → cyan-green) */
  --accent:    oklch(0.74 0.16 232);   /* electric blue */
  --accent-2:  oklch(0.80 0.15 188);   /* electric cyan-green */
  --accent-ink: oklch(0.20 0.05 240);

  /* brand (from logo) */
  --navy:  #0e2a47;
  --steel: #5b9bd5;

  --glow: 0 0 0 1px oklch(0.74 0.16 232 / 0.4), 0 8px 40px -8px oklch(0.74 0.16 232 / 0.45);

  --r-sm: 10px;
  --r:    16px;
  --r-lg: 26px;

  --maxw: 1280px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --pad: clamp(20px, 5vw, 64px);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Manrope', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

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

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* ambient background field */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60vw 50vh at 75% -5%, oklch(0.74 0.16 232 / 0.16), transparent 60%),
    radial-gradient(50vw 45vh at 5% 100%, oklch(0.80 0.15 188 / 0.10), transparent 60%);
  pointer-events: none;
}
/* fine grain */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.04;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

/* ---------- layout ---------- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }
.section { padding-block: clamp(80px, 12vh, 160px); position: relative; }

/* ---------- type ---------- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.04; letter-spacing: -0.02em; }
.display {
  font-size: clamp(2.8rem, 8vw, 6.5rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 0.98;
}
.h-xl { font-size: clamp(2.2rem, 5vw, 4rem); }
.h-lg { font-size: clamp(1.8rem, 3.4vw, 2.9rem); }
.h-md { font-size: clamp(1.3rem, 2vw, 1.7rem); }
.lead { font-size: clamp(1.05rem, 1.5vw, 1.3rem); color: var(--muted); max-width: 60ch; }
.balance { text-wrap: balance; }
.pretty { text-wrap: pretty; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-2);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
}
.eyebrow::before {
  content: "";
  width: 28px; height: 1px;
  background: linear-gradient(90deg, var(--accent-2), transparent);
}

.grad-text {
  background: linear-gradient(100deg, var(--steel) 0%, var(--accent) 45%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- buttons ---------- */
.btn {
  --bx: 0;
  --by: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.95em 1.6em;
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), background 0.3s, color 0.3s, border-color 0.3s;
  transform: translate(var(--bx), var(--by));
  position: relative;
  white-space: nowrap;
}
.btn .ar { transition: transform 0.4s var(--ease); }
.btn:hover .ar { transform: translateX(4px); }

.btn-primary {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  color: var(--accent-ink);
  box-shadow: 0 10px 30px -10px oklch(0.74 0.16 232 / 0.6);
}
.btn-primary:hover { box-shadow: 0 16px 44px -12px oklch(0.74 0.16 232 / 0.8); }

.btn-ghost {
  background: oklch(1 0 0 / 0.04);
  border-color: var(--line);
  color: var(--fg);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: var(--accent); background: oklch(0.74 0.16 232 / 0.1); }

.btn-lg { padding: 1.1em 2em; font-size: 1.05rem; }

/* ---------- cards / glass ---------- */
.card {
  background: linear-gradient(180deg, var(--bg-1), var(--bg));
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  position: relative;
  overflow: hidden;
}
.glass {
  background: oklch(0.22 0.018 248 / 0.5);
  border: 1px solid var(--line-soft);
  backdrop-filter: blur(14px);
}

/* sheen sweep used on cards/images */
.sheen { position: relative; overflow: hidden; }
.sheen::after {
  content: "";
  position: absolute;
  top: -50%; left: -60%;
  width: 50%; height: 200%;
  background: linear-gradient(100deg, transparent, oklch(1 0 0 / 0.16), transparent);
  transform: skewX(-18deg);
  transition: left 0.8s var(--ease);
  pointer-events: none;
}
.sheen:hover::after { left: 130%; }

/* ---------- image placeholder ---------- */
.ph {
  position: relative;
  background:
    repeating-linear-gradient(135deg, oklch(0.24 0.02 248) 0 10px, oklch(0.21 0.018 248) 10px 20px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  display: grid;
  place-items: center;
  overflow: hidden;
  color: var(--faint);
}
.ph.has-img { background-size: cover !important; background-position: center !important; background-repeat: no-repeat !important; border-color: var(--line); }
.ph.has-img > span { display: none; }
.ph img.photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 0.7s var(--ease); }
.ph img.photo.loaded { opacity: 1; }
.ph span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.5em 0.9em;
  border: 1px dashed var(--line);
  border-radius: 100px;
  background: oklch(0.18 0.016 248 / 0.7);
}

/* ---------- chips ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.5em 0.9em;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: oklch(1 0 0 / 0.02);
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); }

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.4s, border-color 0.4s, backdrop-filter 0.4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: oklch(0.16 0.014 248 / 0.72);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom-color: var(--line-soft);
}
.nav-inner {
  max-width: var(--maxw);
  margin-inline: auto;
  min-height: 110px;
  padding: 8px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.brand .mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--navy), var(--accent));
  display: grid; place-items: center;
  position: relative;
  flex: none;
  box-shadow: 0 0 0 1px oklch(0.74 0.16 232 / 0.3);
}
.brand .mark svg { width: 20px; height: 20px; }
.brand b { color: var(--steel); font-weight: 700; }
/* logo chip — transparent logo directly on dark nav */
.logo-chip { display: inline-flex; align-items: center; transition: transform 0.4s var(--ease), filter 0.4s var(--ease); filter: drop-shadow(0 3px 16px oklch(0.85 0.18 20 / 0.35)); }
.brand:hover .logo-chip { transform: translateY(-2px); filter: drop-shadow(0 6px 24px oklch(0.85 0.18 20 / 0.6)); }
.logo-chip img { height: 90px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 0.4rem; }
.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
  padding: 0.5em 0.9em;
  border-radius: 100px;
  transition: color 0.25s, background 0.25s;
  position: relative;
}
.nav-links a:hover { color: var(--fg); }
.nav-links a.active { color: var(--fg); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0.9em; right: 0.9em; bottom: 0.1em; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: 0.8rem; }
.menu-btn { display: none; background: none; border: 0; color: var(--fg); padding: 0.4em; }
.menu-btn svg { width: 26px; height: 26px; }

/* mobile drawer */
.drawer {
  position: fixed; inset: 0; z-index: 99;
  background: oklch(0.14 0.014 248 / 0.96);
  backdrop-filter: blur(16px);
  display: flex; flex-direction: column; justify-content: center; gap: 0.5rem;
  padding: var(--pad);
  transform: translateY(-100%);
  transition: transform 0.5s var(--ease);
}
.drawer.open { transform: translateY(0); }
.drawer a { font-family: var(--font-display); font-size: 2rem; font-weight: 600; color: var(--fg); padding: 0.4em 0; border-bottom: 1px solid var(--line-soft); }
.drawer a:last-of-type { border-bottom: 0; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line-soft); background: var(--bg-1); padding-block: clamp(56px, 8vh, 96px) 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2.5rem; }
.footer h5 { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--faint); margin-bottom: 1.1rem; }
.footer-links { display: flex; flex-direction: column; gap: 0.7rem; }
.footer-links a { color: var(--muted); transition: color 0.2s; width: fit-content; }
.footer-links a:hover { color: var(--accent-2); }
/* footer logo — transparent version directly on dark */
.logo-badge { width: fit-content; }
.logo-badge img { height: 110px; width: auto; max-width: 100%; display: block; filter: drop-shadow(0 4px 16px oklch(0.74 0.16 232 / 0.2)); }
.footer-bottom { margin-top: 3.5rem; padding-top: 1.6rem; border-top: 1px solid var(--line-soft); display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; color: var(--faint); font-size: 0.85rem; }

/* ---------- reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--d, 0ms);
}
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal="scale"] { transform: translateY(34px) scale(0.96); }
[data-reveal="left"] { transform: translateX(-40px); }
[data-reveal="right"] { transform: translateX(40px); }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition-duration: 0.01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- cursor glow ---------- */
.cursor-glow {
  position: fixed; top: 0; left: 0; width: 460px; height: 460px;
  border-radius: 50%; pointer-events: none; z-index: 1;
  background: radial-gradient(circle, oklch(0.74 0.16 232 / 0.13), transparent 65%);
  transform: translate(-50%, -50%);
  transition: opacity 0.4s; opacity: 0;
  mix-blend-mode: screen;
}

/* ---------- utility ---------- */
.grid { display: grid; gap: clamp(16px, 2vw, 28px); }
.flex { display: flex; }
.center { align-items: center; }
.between { justify-content: space-between; }
.gap-s { gap: 0.6rem; } .gap { gap: 1rem; } .gap-l { gap: 2rem; }
.wrap-f { flex-wrap: wrap; }
.mt-s { margin-top: 1rem; } .mt { margin-top: 2rem; } .mt-l { margin-top: 3.5rem; }
.muted { color: var(--muted); }
.center-text { text-align: center; }
.mx-auto { margin-inline: auto; }
.section-head { max-width: 720px; }
.section-head.center-text { margin-inline: auto; }

@media (max-width: 860px) {
  .nav-links, .nav-cta .btn { display: none; }
  .menu-btn { display: inline-flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   PHONE OPTIMIZATION
   ============================================================ */
@media (max-width: 680px) {
  :root { --pad: 18px; }

  /* tighter vertical rhythm */
  .section { padding-block: clamp(52px, 9vh, 84px); }

  /* nav: shorter bar, smaller logo, comfy tap target */
  .nav-inner { padding-block: 0.7rem; gap: 1rem; }
  .logo-chip img { height: 64px; }
  .menu-btn { padding: 0.5em; margin: -0.5em -0.3em -0.5em 0; }

  /* type scales down so headlines don't dominate the screen */
  .display { font-size: clamp(2.3rem, 12vw, 3.3rem); line-height: 1.02; }
  .h-xl { font-size: clamp(1.85rem, 8.5vw, 2.5rem); }
  .h-lg { font-size: clamp(1.55rem, 7vw, 2.1rem); }
  .h-md { font-size: 1.2rem; }
  .lead { font-size: 1.02rem; }
  body { font-size: 16px; }

  /* buttons: full-width stacked, never cramped side-by-side */
  .btn { padding: 0.95em 1.4em; }
  .btn-lg { padding: 1.05em 1.5em; font-size: 1rem; }
  .hero-actions,
  .cta-band .hero-actions,
  .cta-band .flex.gap-s { width: 100%; flex-direction: column; align-items: stretch; }
  .hero-actions .btn,
  .cta-band .btn { width: 100%; justify-content: center; }

  /* footer */
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: left; }
}

@media (max-width: 400px) {
  .display { font-size: clamp(2rem, 12vw, 2.6rem); }
  .nav-cta .btn { display: none; }
}