/* ============================================================
   RetroPrompt — style.css
   1980s film-lab aesthetic: warm paper, darkroom ink,
   amber highlights, viewfinder teal. No webfonts required.
   ============================================================ */

:root{
  --paper:      #f5eede;
  --paper-2:    #efe5cf;
  --card:       #fffaf0;
  --ink:        #29241c;
  --ink-soft:   #5c5344;
  --ink-faint:  #8a7f6c;
  --amber:      #c96f2e;
  --amber-deep: #a8561d;
  --amber-soft: #f3dcc3;
  --teal:       #2f6f6a;
  --teal-soft:  #d9e8e4;
  --dark:       #221d16;
  --dark-2:     #2e2820;
  --line:       rgba(41,36,28,.14);
  --radius:     14px;
  --shadow-sm:  0 1px 2px rgba(41,36,28,.06), 0 4px 14px rgba(41,36,28,.07);
  --shadow-md:  0 2px 6px rgba(41,36,28,.08), 0 14px 34px rgba(41,36,28,.12);
  --shadow-lg:  0 6px 18px rgba(41,36,28,.14), 0 28px 60px rgba(41,36,28,.20);
  --serif: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --sans:  -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono:  ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.65;
  color:var(--ink);
  background-color:var(--paper);
  /* layered warm gradient + faint film grain */
  background-image:
    radial-gradient(1100px 520px at 85% -10%, rgba(201,111,46,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(47,111,106,.08), transparent 55%),
    repeating-linear-gradient(0deg, rgba(41,36,28,.022) 0 1px, transparent 1px 3px);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
::selection{ background:var(--amber); color:#fff; }
img{ max-width:100%; height:auto; display:block; }
a{ color:var(--amber-deep); text-decoration-thickness:1px; text-underline-offset:3px; }
a:hover{ color:var(--amber); }

:focus-visible{ outline:2.5px solid var(--teal); outline-offset:3px; border-radius:4px; }

/* scrollbar */
::-webkit-scrollbar{ width:11px; }
::-webkit-scrollbar-track{ background:var(--paper-2); }
::-webkit-scrollbar-thumb{ background:var(--ink-faint); border-radius:6px; border:3px solid var(--paper-2); }

.skip{
  position:absolute; left:1rem; top:-3.5rem; z-index:100;
  background:var(--dark); color:var(--paper); padding:.6rem 1rem;
  border-radius:0 0 10px 10px; transition:top .25s ease; font-size:.9rem;
}
.skip:focus{ top:0; color:var(--paper); }

/* ---------- Header ---------- */
header{
  position:sticky; top:0; z-index:50;
  display:flex; align-items:center; gap:1.5rem;
  padding:.85rem clamp(1rem, 4vw, 3rem);
  background:rgba(245,238,222,.86);
  backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{
  display:flex; flex-direction:column; line-height:1.1;
  font-family:var(--serif); font-weight:700; font-size:1.35rem;
  letter-spacing:.02em; color:var(--ink); text-decoration:none;
}
.brand span{
  font-family:var(--mono); font-weight:400; font-size:.58rem;
  letter-spacing:.32em; color:var(--amber); margin-top:.25rem;
}
header nav{ display:flex; gap:1.4rem; margin-left:auto; }
header nav a{
  color:var(--ink-soft); text-decoration:none; font-size:.95rem; font-weight:500;
  position:relative; padding:.2rem 0;
}
header nav a::after{
  content:""; position:absolute; left:0; bottom:-2px; height:2px; width:0;
  background:var(--amber); transition:width .28s cubic-bezier(.2,.8,.2,1);
}
header nav a:hover{ color:var(--ink); }
header nav a:hover::after{ width:100%; }
.guest-badge{
  font-family:var(--mono); font-size:.68rem; letter-spacing:.14em;
  color:var(--teal); background:var(--teal-soft);
  border:1px solid rgba(47,111,106,.35);
  padding:.32rem .7rem; border-radius:999px; white-space:nowrap;
}

/* ---------- Shared type ---------- */
main{ display:block; }
.eyebrow{
  font-family:var(--mono); font-size:.72rem; letter-spacing:.3em;
  color:var(--amber); margin:0 0 .9rem;
}
h1,h2,h3{ font-family:var(--serif); font-weight:700; line-height:1.12; margin:0 0 .8rem; letter-spacing:-.01em; }
h1{ font-size:clamp(2.4rem, 5.4vw, 4rem); }
h2{ font-size:clamp(1.6rem, 3vw, 2.2rem); }
h3{ font-size:1.25rem; }
p{ margin:0 0 1rem; }
.lead{ font-size:1.18rem; color:var(--ink-soft); max-width:34rem; }
.small{ font-size:.85rem; color:var(--ink-faint); }

/* ---------- Buttons ---------- */
.button, button{
  font-family:var(--sans); font-size:.95rem; font-weight:600;
  display:inline-flex; align-items:center; justify-content:center; gap:.4rem;
  padding:.75rem 1.5rem; border-radius:10px; cursor:pointer;
  border:1.5px solid var(--ink); background:transparent; color:var(--ink);
  text-decoration:none; transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.button:hover, button:hover{
  transform:translateY(-2px); box-shadow:var(--shadow-md);
  background:var(--ink); color:var(--paper); border-color:var(--ink);
}
.button.primary, button.primary{
  background:var(--amber); border-color:var(--amber); color:#fff;
  box-shadow:0 2px 0 var(--amber-deep), var(--shadow-sm);
}
.button.primary:hover, button.primary:hover{
  background:var(--amber-deep); border-color:var(--amber-deep);
  box-shadow:0 4px 0 #8a4517, var(--shadow-md); transform:translateY(-2px);
}
button.full{ width:100%; padding:1rem; font-size:1.05rem; }
button:disabled{
  opacity:.45; cursor:not-allowed; transform:none !important; box-shadow:none !important;
}
button.copied{ background:var(--teal) !important; border-color:var(--teal) !important; color:#fff !important; }

/* ---------- Hero ---------- */
.hero{
  display:grid; grid-template-columns:1.15fr .85fr; gap:clamp(2rem,5vw,4.5rem);
  align-items:center; max-width:1180px; margin:0 auto;
  padding:clamp(3rem,7vw,5.5rem) clamp(1rem,4vw,3rem) clamp(2.5rem,5vw,4rem);
}
.hero h1 em{ font-style:italic; color:var(--amber); }
.actions{ display:flex; flex-wrap:wrap; gap:.9rem; margin:1.6rem 0 1rem; }
figure.contact{ margin:0; justify-self:center; }
figure.contact img{
  border:14px solid #fff; border-bottom-width:52px; border-radius:6px;
  box-shadow:var(--shadow-lg); transform:rotate(2.5deg);
  transition:transform .4s cubic-bezier(.2,.8,.2,1);
  background:#fff;
}
figure.contact:hover img{ transform:rotate(.5deg) scale(1.02); }
figure.contact figcaption{
  font-family:var(--mono); font-size:.62rem; letter-spacing:.22em;
  color:var(--ink-faint); text-align:center; margin-top:-2.6rem; position:relative;
}

/* ---------- Strip ---------- */
.strip{
  background:var(--dark); color:var(--paper);
  display:flex; justify-content:center; gap:clamp(1.5rem,5vw,4rem); flex-wrap:wrap;
  padding:.95rem 1rem;
  font-family:var(--mono); font-size:.72rem; letter-spacing:.22em;
  border-top:3px solid var(--amber); border-bottom:3px solid var(--amber);
}
.strip span{ opacity:.85; }
.strip span:nth-child(2){ color:var(--amber); opacity:1; }

/* ---------- Sections ---------- */
section{
  max-width:1180px; margin:0 auto;
  padding:clamp(3rem,6vw,5rem) clamp(1rem,4vw,3rem);
}
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end; gap:2rem;
  margin-bottom:2.2rem; flex-wrap:wrap;
}
.section-head > p{ color:var(--ink-soft); text-align:right; margin:0; }

/* ---------- Workspace ---------- */
.workspace{
  display:grid; grid-template-columns:1.2fr .8fr; gap:clamp(1.5rem,3vw,2.5rem);
  align-items:start;
}
#generator{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:clamp(1.4rem,3vw,2.2rem); box-shadow:var(--shadow-sm);
  display:flex; flex-direction:column; gap:1.3rem;
}
.step{ display:flex; align-items:center; gap:.8rem; }
.step span, fieldset legend span{
  font-family:var(--mono); font-size:.75rem; color:#fff; background:var(--ink);
  border-radius:999px; padding:.28rem .6rem; letter-spacing:.1em;
}
.step h3{ margin:0; }

label.upload{
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:.3rem;
  border:2px dashed var(--ink-faint); border-radius:12px;
  padding:1.8rem 1rem; text-align:center; cursor:pointer;
  background:var(--paper); transition:border-color .2s, background .2s, transform .2s;
}
label.upload:hover{ border-color:var(--amber); background:var(--amber-soft); transform:translateY(-2px); }
label.upload b{ font-size:1.05rem; }
label.upload small{ color:var(--ink-faint); font-size:.8rem; }
label.upload input{ display:none; }
label.upload img{
  margin-top:1rem; max-height:180px; border-radius:8px; box-shadow:var(--shadow-md);
  border:6px solid #fff;
}

label.custom-prompt span{
  display:block; font-family:var(--mono); font-size:.72rem; letter-spacing:.2em;
  color:var(--ink-soft); margin-bottom:.45rem;
}
label.custom-prompt small{ color:var(--ink-faint); letter-spacing:.1em; }
textarea{
  width:100%; min-height:88px; resize:vertical;
  font-family:var(--sans); font-size:.95rem; color:var(--ink);
  background:var(--paper); border:1.5px solid var(--line); border-radius:10px;
  padding:.8rem 1rem; transition:border-color .2s, box-shadow .2s;
}
textarea:focus{ outline:none; border-color:var(--amber); box-shadow:0 0 0 4px rgba(201,111,46,.15); }

fieldset{ border:none; margin:0; padding:0; }
fieldset legend{
  display:flex; align-items:center; gap:.8rem; font-family:var(--serif);
  font-weight:700; font-size:1.25rem; padding:0; margin-bottom:1rem;
}
.styles{
  display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:.7rem;
}
.styles label{
  position:relative; display:block; border:1.5px solid var(--line); border-radius:10px;
  padding:.7rem .8rem; background:var(--paper); cursor:pointer;
  transition:border-color .2s, background .2s, transform .2s, box-shadow .2s;
}
.styles label:hover{ border-color:var(--amber); transform:translateY(-2px); box-shadow:var(--shadow-sm); }
.styles label b{ display:block; font-size:.92rem; }
.styles label small{ color:var(--ink-faint); font-size:.74rem; line-height:1.3; display:block; margin-top:.15rem; }
.styles input{ position:absolute; opacity:0; pointer-events:none; }
.styles label:has(input:checked){
  border-color:var(--amber); background:var(--amber-soft);
  box-shadow:inset 0 0 0 1px var(--amber), var(--shadow-sm);
}
.styles label:has(input:checked)::after{
  content:"✓"; position:absolute; top:.45rem; right:.6rem;
  color:var(--amber-deep); font-weight:700; font-size:.85rem;
}
.styles label:has(input:focus-visible){ outline:2.5px solid var(--teal); outline-offset:2px; }

.allowance{
  background:var(--teal-soft); border:1px solid rgba(47,111,106,.3);
  border-left:4px solid var(--teal); border-radius:10px; padding:.8rem 1.1rem;
}
.allowance strong{ color:var(--teal); font-size:.95rem; }
.allowance p{ margin:.1rem 0 0; font-size:.8rem; color:var(--ink-soft); }

label.consent{ display:flex; gap:.7rem; align-items:flex-start; font-size:.88rem; color:var(--ink-soft); cursor:pointer; }
label.consent input{ margin-top:.3rem; accent-color:var(--amber); width:16px; height:16px; flex:none; }

#notice{ min-height:1.2em; }
#notice:empty{ display:none; }

/* ---------- Output / viewfinder ---------- */
.output{
  position:sticky; top:90px;
  background:var(--dark); color:var(--paper); border-radius:var(--radius);
  padding:1.1rem; box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.06);
}
.output-label, .output-footer{
  display:flex; justify-content:space-between; align-items:center;
  font-family:var(--mono); font-size:.66rem; letter-spacing:.2em; color:rgba(245,238,222,.55);
  padding:.3rem .2rem;
}
.viewfinder{
  position:relative; margin:.8rem 0; border-radius:10px; overflow:hidden;
  aspect-ratio:4/3; background:var(--dark-2);
  background-image:
    linear-gradient(rgba(245,238,222,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,238,222,.05) 1px, transparent 1px);
  background-size:28px 28px;
  box-shadow:inset 0 0 60px rgba(0,0,0,.55);
  display:flex; align-items:center; justify-content:center;
}
#result-empty{ text-align:center; padding:1.5rem; }
#result-empty .cross{
  font-size:2.6rem; color:var(--amber); opacity:.8; line-height:1;
  width:64px; height:64px; margin:0 auto 1rem; border:1.5px dashed rgba(201,111,46,.6);
  border-radius:50%; display:flex; align-items:center; justify-content:center;
}
#result-empty h3{ color:var(--paper); font-style:italic; }
#result-empty p{ color:rgba(245,238,222,.55); font-size:.9rem; }
#result-image{ width:100%; height:100%; object-fit:cover; }
.output-footer .button{
  border-color:rgba(245,238,222,.4); color:var(--paper); font-size:.8rem; padding:.5rem 1rem;
}
.output-footer .button:hover{ background:var(--amber); border-color:var(--amber); }

/* ---------- Prompt grid ---------- */
.prompt-grid{
  display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:1.4rem;
}
.prompt-grid article{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:1.6rem 1.5rem 1.4rem; box-shadow:var(--shadow-sm); position:relative;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  overflow:hidden;
}
.prompt-grid article::before{
  content:""; position:absolute; inset:0 0 auto 0; height:4px;
  background:linear-gradient(90deg, var(--amber), var(--teal));
  transform:scaleX(0); transform-origin:left; transition:transform .35s cubic-bezier(.2,.8,.2,1);
}
.prompt-grid article:hover{ transform:translateY(-5px); box-shadow:var(--shadow-md); border-color:rgba(201,111,46,.4); }
.prompt-grid article:hover::before{ transform:scaleX(1); }
.prompt-grid article h3{ font-style:italic; }
.prompt-grid article p{ color:var(--ink-soft); font-size:.92rem; }
.prompt-grid article .button, .prompt-grid article button{ margin:.4rem .4rem 0 0; padding:.55rem 1.1rem; font-size:.85rem; }

/* ---------- FAQ ---------- */
.faq details{
  background:var(--card); border:1px solid var(--line); border-radius:12px;
  padding:1rem 1.4rem; margin-bottom:.8rem; box-shadow:var(--shadow-sm);
  transition:border-color .2s;
}
.faq details:hover{ border-color:rgba(201,111,46,.45); }
.faq details[open]{ border-color:var(--amber); box-shadow:var(--shadow-md); }
.faq summary{
  font-family:var(--serif); font-weight:700; font-size:1.1rem; cursor:pointer;
  list-style:none; position:relative; padding-right:2rem;
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary::after{
  content:"+"; position:absolute; right:0; top:50%; transform:translateY(-50%);
  font-size:1.4rem; color:var(--amber); transition:transform .25s ease;
}
.faq details[open] summary::after{ transform:translateY(-50%) rotate(45deg); }
.faq details p{ color:var(--ink-soft); margin:.8rem 0 .2rem; }

/* ---------- Article pages ---------- */
main.article{
  max-width:720px; margin:0 auto;
  padding:clamp(2.5rem,6vw,4.5rem) clamp(1rem,4vw,2rem);
}
main.article > a:first-child{
  display:inline-block; font-size:.88rem; margin-bottom:1.8rem;
  text-decoration:none; color:var(--ink-soft);
}
main.article > a:first-child:hover{ color:var(--amber); }
main.article h1{ margin-bottom:1.4rem; }
main.article h1::after{
  content:""; display:block; width:64px; height:4px; margin-top:1rem;
  background:linear-gradient(90deg, var(--amber), var(--teal)); border-radius:2px;
}
main.article h2{
  font-size:1.35rem; margin:2.2rem 0 .6rem;
  padding-left:.9rem; border-left:4px solid var(--amber);
}
main.article p{ color:var(--ink-soft); }
main.article .button{ margin-top:1.6rem; }

/* ---------- Footer ---------- */
footer{
  background:var(--dark); color:rgba(245,238,222,.75);
  display:flex; flex-wrap:wrap; align-items:center; gap:1.5rem 3rem;
  padding:2.4rem clamp(1rem,4vw,3rem); margin-top:3rem;
  border-top:3px solid var(--amber);
}
footer .brand{ color:var(--paper); }
footer p{ margin:0; font-size:.9rem; }
footer small{ color:rgba(245,238,222,.45); font-size:.75rem; }
footer nav{ margin-left:auto; display:flex; gap:1.4rem; }
footer nav a{ color:rgba(245,238,222,.65); text-decoration:none; font-size:.9rem; }
footer nav a:hover{ color:var(--amber); }

/* ---------- Responsive ---------- */
@media (max-width: 940px){
  .hero{ grid-template-columns:1fr; text-align:center; }
  .lead{ margin-inline:auto; }
  .actions{ justify-content:center; }
  .section-head{ flex-direction:column; align-items:flex-start; }
  .section-head > p{ text-align:left; }
  .workspace{ grid-template-columns:1fr; }
  .output{ position:static; }
}
@media (max-width: 640px){
  header{ flex-wrap:wrap; gap:.8rem 1.2rem; }
  header nav{ order:3; width:100%; margin-left:0; justify-content:space-between; }
  .guest-badge{ margin-left:auto; }
  .strip{ gap:1rem; font-size:.62rem; }
  footer nav{ margin-left:0; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
}

[hidden]{display:none!important}

/* Prompt library: four-card desktop grid */
.article .prompt-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;border:0}
.article .prompt-grid article+article{border-left:0}
@media(max-width:1100px){.article .prompt-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:800px){.article .prompt-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){.article .prompt-grid{grid-template-columns:1fr}}

/* Use the full content width for the 18-card prompt library. */
.article:has(.prompt-grid){max-width:1440px;padding-left:clamp(24px,4vw,64px);padding-right:clamp(24px,4vw,64px)}
.article:has(.prompt-grid)>p{max-width:760px}
.article:has(.prompt-grid) .prompt-grid{width:100%}