/* undress-ai.app — foundation styles (Cloudflare Pages static)
   Author: ChatGPT
*/

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
:focus-visible { outline: 2px solid rgba(255,255,255,0.35); outline-offset: 3px; }

/* ========== Design Tokens ========== */
:root{
  --bg-main: #0b0b0d;
  --bg-soft: #111216;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-2: rgba(255,255,255,0.06);

  --text-main: #f2f2f2;
  --text-muted: rgba(242,242,242,0.72);
  --text-dim: rgba(242,242,242,0.58);

  --accent-primary: #ff2f92;   /* UndressAITools CTA accent */
  --accent-secondary: #7a7cff; /* PromptChan / advanced accent */
  --accent-safe: #39d98a;

  --border-soft: rgba(255,255,255,0.10);
  --border-softer: rgba(255,255,255,0.07);

  --shadow-soft: 0 10px 30px rgba(0,0,0,0.35);
  --shadow-glow: 0 0 24px rgba(255,47,146,0.18);

  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;

  --container-max: 1180px;

  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 20px;
  --space-5: 28px;
  --space-6: 36px;
  --space-7: 48px;
  --space-8: 64px;

  --h1: clamp(34px, 4vw, 52px);
  --h2: clamp(22px, 2.4vw, 32px);
  --h3: 18px;
  --body: 16px;
  --small: 14px;
}

/* ========== Typography ========== */
body{
  background: radial-gradient(1200px 600px at 20% 0%, rgba(122,124,255,0.10), transparent 55%),
              radial-gradient(900px 500px at 80% 20%, rgba(255,47,146,0.10), transparent 55%),
              var(--bg-main);
  color: var(--text-main);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  font-size: var(--body);
  line-height: 1.55;
}

p{ margin: 0 0 var(--space-3); color: var(--text-muted); }
strong{ color: var(--text-main); font-weight: 700; }

h1,h2,h3{ margin: 0 0 var(--space-3); letter-spacing: -0.02em; }
h1{ font-size: var(--h1); line-height: 1.05; }
h2{ font-size: var(--h2); line-height: 1.15; }
h3{ font-size: var(--h3); line-height: 1.25; }

.lead{ font-size: 18px; color: var(--text-muted); max-width: 62ch; }

/* ========== Layout ========== */
.container{
  width: min(var(--container-max), calc(100% - 2*var(--space-4)));
  margin: 0 auto;
}

.section{ padding: var(--space-8) 0; }
.section-tight{ padding: var(--space-7) 0; }
.section-top{ padding-top: var(--space-8); }
.section-bottom{ padding-bottom: var(--space-8); }

.hr{
  height: 1px;
  background: var(--border-softer);
  border: 0;
  margin: var(--space-7) 0;
}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border: 1px solid var(--border-softer);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.card-pad{ padding: var(--space-5); }

.badge{
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 6px 10px;
  border: 1px solid var(--border-softer);
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
  color: var(--text-muted);
  font-size: var(--small);
}

.grid{
  display: grid;
  gap: var(--space-4);
}
.grid-2{ grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3{ grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4{ grid-template-columns: repeat(4, minmax(0,1fr)); }

@media (max-width: 980px){
  .grid-4{ grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 720px){
  .grid-3, .grid-2{ grid-template-columns: 1fr; }
  .section{ padding: var(--space-7) 0; }
}

/* ========== Buttons / CTAs ========== */
.btn-row{ display:flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition: transform .12s ease, background .12s ease, border-color .12s ease, box-shadow .12s ease, opacity .12s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.btn:hover{ transform: translateY(-1px); }
.btn:active{ transform: translateY(0px); opacity: 0.96; }

.btn-primary{
  background: rgba(255,47,146,0.14);
  border-color: rgba(255,47,146,0.35);
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover{
  background: rgba(255,47,146,0.18);
  border-color: rgba(255,47,146,0.46);
}

.btn-secondary{
  background: rgba(122,124,255,0.14);
  border-color: rgba(122,124,255,0.32);
}
.btn-secondary:hover{
  background: rgba(122,124,255,0.18);
  border-color: rgba(122,124,255,0.44);
}

.btn-ghost{
  background: transparent;
  border-color: var(--border-softer);
  color: var(--text-muted);
}
.btn-ghost:hover{
  border-color: var(--border-soft);
  color: var(--text-main);
}

/* ========== Header / Footer ========== */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(11,11,13,0.72);
  border-bottom: 1px solid var(--border-softer);
}
.nav{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 14px 0;
  gap: var(--space-4);
}
.brand{
  display:flex;
  flex-direction: column;
  gap: 2px;
}
.brand b{ font-size: 15px; letter-spacing: -0.01em; }
.brand span{ font-size: 12px; color: var(--text-dim); }

.nav-links{
  display:flex;
  gap: 14px;
  align-items:center;
  color: var(--text-muted);
  font-size: 14px;
}
.nav-links a{ padding: 8px 10px; border-radius: 10px; }
.nav-links a:hover{ background: rgba(255,255,255,0.04); color: var(--text-main); }

@media (max-width: 720px){
  .nav-links{ display:none; }
}

/* ========== Hero ========== */
.hero{
  padding: var(--space-8) 0 var(--space-7);
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.25fr 1fr;
  gap: var(--space-6);
  align-items: start;
}
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
}
.hero-title{ max-width: 18ch; }
.hero-sub{ max-width: 60ch; }
.hero-media{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: var(--space-3);
}
@media (max-width: 720px){
  .hero-media{ grid-template-columns: 1fr; }
}
.img-frame{
  border-radius: var(--radius-lg);
  overflow:hidden;
  border: 1px solid var(--border-softer);
  background: rgba(255,255,255,0.02);
  box-shadow: var(--shadow-soft);
}
.img-frame img{
  width:100%;
  height: auto;
  transition: transform .18s ease, filter .18s ease;
}
.img-frame:hover img{ transform: scale(1.02); }

/* ========== TOC ========== */
.toc{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: var(--space-4);
}
.toc a{
  font-size: 14px;
  color: var(--text-muted);
  border: 1px solid var(--border-softer);
  background: rgba(255,255,255,0.03);
  padding: 8px 10px;
  border-radius: 999px;
}
.toc a:hover{
  color: var(--text-main);
  border-color: var(--border-soft);
}

/* ========== Feature Icons ========== */
.icon-row{
  display:grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: var(--space-4);
}
@media (max-width: 980px){
  .icon-row{ grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 520px){
  .icon-row{ grid-template-columns: 1fr; }
}

.icon-card{
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-softer);
  background: rgba(255,255,255,0.03);
}
.icon-card img{ width: 54px; height: 54px; opacity: 0.92; margin-bottom: 12px; }
.icon-card b{ display:block; margin-bottom: 6px; }
.icon-card p{ margin:0; }

/* ========== Galleries ========== */
.gallery-card{
  overflow:hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-softer);
  background: rgba(255,255,255,0.02);
}
.gallery-card img {
  width: 100%;
  height: auto;
}

.pair{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
@media (max-width: 720px){
  .pair{ grid-template-columns: 1fr; }
}

.caption{
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 10px;
}

/* ========== CTA Blocks ========== */
.cta-box{
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-softer);
  background: linear-gradient(180deg, rgba(255,47,146,0.10), rgba(255,255,255,0.03));
}
.cta-box.secondary{
  background: linear-gradient(180deg, rgba(122,124,255,0.10), rgba(255,255,255,0.03));
}
.cta-box h2{ margin-bottom: var(--space-2); }
.cta-box p{ margin-bottom: var(--space-4); }

/* ========== FAQ ========== */
.faq{
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-softer);
  overflow:hidden;
  background: rgba(255,255,255,0.03);
}
.faq-item{ border-top: 1px solid var(--border-softer); }
.faq-item:first-child{ border-top: 0; }
.faq-q{
  width: 100%;
  text-align:left;
  padding: 16px 18px;
  background: transparent;
  border: 0;
  color: var(--text-main);
  font-weight: 800;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  cursor:pointer;
}
.faq-q span{ color: var(--text-muted); font-weight: 700; }
.faq-a{
  padding: 0 18px 16px;
  color: var(--text-muted);
  display:none;
}
.faq-item[aria-expanded="true"] .faq-a{ display:block; }
.faq-chevron{
  width: 10px; height: 10px;
  border-right: 2px solid rgba(255,255,255,0.55);
  border-bottom: 2px solid rgba(255,255,255,0.55);
  transform: rotate(45deg);
  transition: transform .12s ease;
  margin-top: 2px;
}
.faq-item[aria-expanded="true"] .faq-chevron{
  transform: rotate(-135deg);
}

/* ========== Utilities ========== */
.m0{ margin:0 !important; }
.mb2{ margin-bottom: var(--space-2) !important; }
.mb3{ margin-bottom: var(--space-3) !important; }
.mb4{ margin-bottom: var(--space-4) !important; }
.mt4{ margin-top: var(--space-4) !important; }
.center{ text-align:center; }