/* ─── TOKENS ─── */
:root {
  --bg:       #0b0c10;
  --surface:  #111318;
  --surface2: #181b22;
  --border:   rgba(255,255,255,.07);
  --border2:  rgba(255,255,255,.13);
  --amber:    #e8a834;
  --amber-lt: #f5c96a;
  --amber-dim:#a87420;
  --teal:     #38b2ac;
  --red:      #e05c5c;
  --text:     #e8e6e0;
  --muted:    #6b7280;
  --muted2:   #9ca3af;
  --white:    #ffffff;
  --r:        10px;
  --shadow:   0 8px 40px rgba(0,0,0,.5);
  --glow:     0 0 40px rgba(232,168,52,.12);
}

/* ─── BASE ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Syne', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Grain overlay */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.035'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 9999; opacity: .6;
}

/* Ambient glow blobs */
.ambient { position: fixed; border-radius: 50%; filter: blur(120px); pointer-events: none; z-index: 0; }
.amb-1 { width: 600px; height: 400px; background: rgba(232,168,52,.05); top: -100px; left: -150px; }
.amb-2 { width: 500px; height: 500px; background: rgba(56,178,172,.04); bottom: -100px; right: -100px; }

/* ─── TOPBAR ─── */
.topbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11,12,16,.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: .75rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
}
.brand {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem; font-weight: 700; font-style: italic;
  color: var(--amber);
  letter-spacing: .02em;
  display: flex; align-items: center; gap: .5rem;
}
.brand-icon {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--amber), var(--amber-lt));
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem; color: #000;
}
.brand-tagline {
  font-family: 'Syne', sans-serif;
  font-size: .62rem; font-weight: 600; font-style: normal;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted); margin-left: .25rem;
}
.badge-model {
  font-family: 'JetBrains Mono', monospace;
  font-size: .62rem; font-weight: 500;
  background: rgba(232,168,52,.12);
  border: 1px solid rgba(232,168,52,.25);
  color: var(--amber);
  padding: 3px 10px; border-radius: 20px;
}

/* ─── MAIN LAYOUT ─── */
.main-wrap {
  position: relative; z-index: 1;
  max-width: 1180px; margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

/* ─── HERO ─── */
.hero { text-align: center; margin-bottom: 2.8rem; }
.hero-eyebrow {
  font-size: .65rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase;
  color: var(--amber-dim);
  margin-bottom: .75rem;
  display: flex; align-items: center; justify-content: center; gap: .5rem;
}
.hero-eyebrow::before, .hero-eyebrow::after {
  content: ''; flex: 0 0 40px; height: 1px; background: linear-gradient(90deg, transparent, var(--amber-dim));
}
.hero-eyebrow::after { transform: scaleX(-1); }
.hero-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700; line-height: 1.1;
  color: var(--white);
  margin-bottom: .8rem;
}
.hero-title span { color: var(--amber); font-style: italic; }
.hero-sub {
  font-size: .88rem; color: var(--muted2); max-width: 520px; margin: 0 auto;
  line-height: 1.7; font-weight: 400;
}

/* ─── FORGE CARD ─── */
.forge-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

/* Section headers inside card */
.forge-section {
  padding: 1.4rem 1.6rem;
  border-bottom: 1px solid var(--border);
}
.forge-section:last-child { border-bottom: none; }
.section-label {
  font-size: .6rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted); margin-bottom: .9rem;
  display: flex; align-items: center; gap: .5rem;
}
.section-label i { color: var(--amber); font-size: .65rem; }

/* ─── INPUT AREA ─── */
.prompt-textarea {
  width: 100%;
  background: var(--surface2);
  border: 1.5px solid var(--border2);
  border-radius: var(--r);
  color: var(--text);
  font-family: 'Syne', sans-serif;
  font-size: .9rem; font-weight: 400;
  line-height: 1.7;
  padding: 1rem 1.1rem;
  resize: none;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  min-height: 110px;
}
.prompt-textarea::placeholder { color: var(--muted); }
.prompt-textarea:focus {
  border-color: rgba(232,168,52,.5);
  box-shadow: 0 0 0 3px rgba(232,168,52,.08);
}

/* Character count */
.char-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: .65rem; color: var(--muted);
  text-align: right; margin-top: .4rem;
}
.char-count.warn { color: var(--amber); }

/* ─── STYLE CHIPS ─── */
.style-grid {
  display: flex; flex-wrap: wrap; gap: .45rem;
}
.style-chip {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 5px 13px;
  border-radius: 20px;
  border: 1.5px solid var(--border2);
  background: transparent;
  color: var(--muted2);
  font-family: 'Syne', sans-serif;
  font-size: .72rem; font-weight: 600;
  cursor: pointer;
  transition: all .18s;
  user-select: none;
}
.style-chip:hover { border-color: rgba(232,168,52,.4); color: var(--text); }
.style-chip.active {
  background: rgba(232,168,52,.12);
  border-color: var(--amber);
  color: var(--amber);
}
.style-chip .chip-icon { font-size: .8rem; }

/* ─── PARAMETER SLIDERS ROW ─── */
.param-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
@media(max-width:640px){ .param-row { grid-template-columns: 1fr; } }

.param-group label {
  font-size: .65rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); display: flex; justify-content: space-between; align-items: center;
  margin-bottom: .45rem;
}
.param-group label span {
  font-family: 'JetBrains Mono', monospace;
  color: var(--amber); font-size: .7rem; letter-spacing: 0;
}
.param-range {
  -webkit-appearance: none;
  width: 100%; height: 4px;
  background: var(--border2);
  border-radius: 2px; outline: none; cursor: pointer;
}
.param-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 8px rgba(232,168,52,.4);
  cursor: pointer;
  transition: transform .15s;
}
.param-range::-webkit-slider-thumb:hover { transform: scale(1.2); }

/* ─── MOOD TOGGLES ─── */
.mood-grid { display: flex; flex-wrap: wrap; gap: .4rem; }
.mood-btn {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 11px; border-radius: 6px;
  border: 1.5px solid var(--border2);
  background: transparent; color: var(--muted2);
  font-family: 'Syne', sans-serif; font-size: .7rem; font-weight: 600;
  cursor: pointer; transition: all .17s;
}
.mood-btn:hover { border-color: var(--border2); color: var(--text); background: rgba(255,255,255,.03); }
.mood-btn.active { background: rgba(56,178,172,.1); border-color: var(--teal); color: var(--teal); }

/* ─── GENERATE BUTTON ─── */
.forge-footer {
  padding: 1.2rem 1.6rem;
  background: rgba(0,0,0,.2);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  flex-wrap: wrap;
}
.options-left { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.output-count-btn {
  display: flex; align-items: center; gap: 5px;
  background: var(--surface2); border: 1.5px solid var(--border2);
  color: var(--muted2); font-family: 'Syne', sans-serif;
  font-size: .72rem; font-weight: 600;
  padding: 6px 12px; border-radius: 7px; cursor: pointer; transition: all .18s;
}
.output-count-btn.active { border-color: rgba(232,168,52,.5); color: var(--amber); background: rgba(232,168,52,.08); }

.btn-forge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 28px;
  background: linear-gradient(135deg, var(--amber) 0%, var(--amber-lt) 100%);
  color: #000;
  font-family: 'Syne', sans-serif; font-size: .8rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
  border: none; border-radius: 8px; cursor: pointer;
  transition: all .22s;
  position: relative; overflow: hidden;
}
.btn-forge::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent, rgba(255,255,255,.15));
  opacity: 0; transition: opacity .2s;
}
.btn-forge:hover::after { opacity: 1; }
.btn-forge:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(232,168,52,.35); }
.btn-forge:disabled { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-forge:disabled::after { display: none; }

/* ─── OUTPUT SECTION ─── */
.output-section { margin-top: 2rem; }
.output-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.1rem;
}
.output-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem; font-weight: 700; font-style: italic;
  color: var(--white);
}
.output-title span { color: var(--amber); }
.output-meta { font-size: .65rem; color: var(--muted); font-family: 'JetBrains Mono', monospace; }

/* Result cards */
.result-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 1rem;
  transition: border-color .2s, box-shadow .2s;
  animation: slideUp .35s cubic-bezier(.2,.8,.4,1) both;
}
.result-card:hover {
  border-color: rgba(232,168,52,.2);
  box-shadow: 0 4px 24px rgba(0,0,0,.3);
}
@keyframes slideUp {
  from { opacity:0; transform:translateY(18px); }
  to   { opacity:1; transform:translateY(0); }
}
.result-card:nth-child(2) { animation-delay: .08s; }
.result-card:nth-child(3) { animation-delay: .16s; }

.result-card-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: .7rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,.15);
}
.result-variant {
  font-size: .6rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--amber);
  display: flex; align-items: center; gap: 6px;
}
.result-variant::before {
  content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--amber);
}
.result-actions { display: flex; gap: .4rem; }
.action-btn {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px;
  background: transparent; border: 1px solid var(--border2);
  color: var(--muted2); border-radius: 5px;
  font-family: 'Syne', sans-serif; font-size: .65rem; font-weight: 600;
  cursor: pointer; transition: all .16s;
}
.action-btn:hover { border-color: var(--amber); color: var(--amber); background: rgba(232,168,52,.07); }
.action-btn.copied { border-color: var(--teal); color: var(--teal); background: rgba(56,178,172,.08); }

.result-body { padding: 1rem; }
.result-prompt {
  font-family: 'Syne', sans-serif;
  font-size: .85rem; line-height: 1.8; color: var(--text);
  white-space: pre-wrap; word-break: break-word;
}

/* Highlight injected elements */
.result-prompt .tag-style    { color: var(--amber); }
.result-prompt .tag-lighting { color: #93c5fd; }
.result-prompt .tag-camera   { color: #86efac; }
.result-prompt .tag-mood     { color: #f9a8d4; }
.result-prompt .tag-quality  { color: var(--amber-lt); }

/* Breakdown chips */
.breakdown {
  display: flex; flex-wrap: wrap; gap: .35rem;
  padding: .65rem 1rem;
  border-top: 1px solid var(--border);
  background: rgba(0,0,0,.1);
}
.breakdown-chip {
  font-family: 'JetBrains Mono', monospace;
  font-size: .6rem; padding: 2px 8px;
  border-radius: 4px; border: 1px solid;
}
.bc-style    { background: rgba(232,168,52,.08); border-color: rgba(232,168,52,.25); color: var(--amber-lt); }
.bc-lighting { background: rgba(147,197,253,.07); border-color: rgba(147,197,253,.2); color: #93c5fd; }
.bc-camera   { background: rgba(134,239,172,.07); border-color: rgba(134,239,172,.2); color: #86efac; }
.bc-mood     { background: rgba(249,168,212,.07); border-color: rgba(249,168,212,.2); color: #f9a8d4; }
.bc-quality  { background: rgba(245,201,106,.07); border-color: rgba(245,201,106,.2); color: var(--amber-lt); }

/* ─── LOADING STATE ─── */
.loading-wrap {
  text-align: center; padding: 3rem 1rem;
  display: none;
}
.loading-wrap.active { display: block; }
.forge-animation {
  display: inline-flex; gap: 6px; margin-bottom: 1.2rem;
}
.forge-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--amber);
  animation: forgePulse 1.2s ease-in-out infinite;
}
.forge-dot:nth-child(2) { animation-delay: .2s; }
.forge-dot:nth-child(3) { animation-delay: .4s; }
@keyframes forgePulse {
  0%, 100% { opacity: .2; transform: scale(.7); }
  50%       { opacity: 1;  transform: scale(1.2); box-shadow: 0 0 10px var(--amber); }
}
.loading-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.2rem; font-weight: 600; font-style: italic;
  color: var(--white); margin-bottom: .35rem;
}
.loading-sub { font-size: .75rem; color: var(--muted); }

/* ─── HISTORY SIDEBAR ─── */
.history-section { margin-top: 2.5rem; }
.history-title {
  font-size: .62rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--muted); margin-bottom: .85rem;
  display: flex; align-items: center; gap: .5rem;
}
.history-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.history-list { display: flex; flex-direction: column; gap: .5rem; }
.history-item {
  display: flex; align-items: flex-start; gap: .75rem;
  padding: .7rem .9rem; border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer; transition: all .18s;
}
.history-item:hover { border-color: rgba(232,168,52,.25); background: rgba(232,168,52,.04); }
.history-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--amber-dim);
  flex-shrink: 0; margin-top: .35rem;
}
.history-original { font-size: .75rem; color: var(--muted2); line-height: 1.5; flex: 1; }
.history-original strong { color: var(--text); font-weight: 600; display: block; margin-bottom: .15rem; font-size: .78rem; }
.history-time { font-family: 'JetBrains Mono', monospace; font-size: .58rem; color: var(--muted); white-space: nowrap; }

/* ─── EMPTY STATE ─── */
.empty-state {
  text-align: center; padding: 3.5rem 1rem;
  display: flex; flex-direction: column; align-items: center; gap: .75rem;
}
.empty-icon {
  width: 64px; height: 64px;
  border: 1.5px solid var(--border2);
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; color: var(--muted);
  background: var(--surface2);
}
.empty-text { font-size: .85rem; color: var(--muted); line-height: 1.6; max-width: 300px; }
.empty-text strong { color: var(--muted2); }

/* ─── TOAST ─── */
.toast-bar {
  position: fixed; bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--surface2); border: 1px solid var(--border2);
  color: var(--text); padding: 9px 20px; border-radius: 24px;
  font-size: .78rem; font-weight: 600;
  display: flex; align-items: center; gap: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
  transition: transform .3s cubic-bezier(.34,1.56,.64,1);
  z-index: 10000; white-space: nowrap;
}
.toast-bar.show { transform: translateX(-50%) translateY(0); }
.toast-bar i { color: var(--teal); }

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 7px; }
::-webkit-scrollbar-track {
  background: rgba(255,255,255,.04);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--amber-dim) 0%, var(--amber) 50%, var(--amber-lt) 100%);
  border-radius: 4px;
  border: 1px solid rgba(0,0,0,.3);
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--amber) 0%, var(--amber-lt) 100%);
  box-shadow: 0 0 8px rgba(232,168,52,.5);
}
/* Firefox */
html { scrollbar-width: thin; scrollbar-color: var(--amber) rgba(255,255,255,.04); }

/* ─── FLOATING BACK BUTTON (right-side tab) ─── */
.back-tab {
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  z-index: 9998;
  display: flex;
  align-items: center;
  cursor: pointer;
  text-decoration: none;
  background: linear-gradient(135deg, var(--amber-dim) 0%, var(--amber) 55%, var(--amber-lt) 100%);
  border-radius: 12px 0 0 12px;
  overflow: hidden;
  box-shadow: -3px 0 20px rgba(232,168,52,.4), 0 4px 24px rgba(0,0,0,.55);
  transition: filter .22s, box-shadow .22s, transform .22s;
}
.back-tab:hover {
  filter: brightness(1.12);
  box-shadow: -6px 0 32px rgba(232,168,52,.65), 0 4px 30px rgba(0,0,0,.6);
  transform: translateY(-50%) translateX(-4px);
}
.back-tab:active {
  filter: brightness(.9);
  transform: translateY(-50%) translateX(0);
}
/* Shine overlay */
.back-tab::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.22) 0%, transparent 55%);
  pointer-events: none; z-index: 1;
}
/* Dark depth stripe on left edge */
.back-tab-stripe {
  width: 4px;
  align-self: stretch;
  background: rgba(0,0,0,.22);
  flex-shrink: 0;
}
/* Arrow icon */
.back-tab-icon {
  width: 46px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  color: #111;
  font-size: 1rem;
  flex-shrink: 0;
  position: relative; z-index: 2;
  transition: transform .22s;
}
.back-tab:hover .back-tab-icon { transform: translateX(-3px); }
/* Expandable label — Cormorant italic matching "Visual Masterpieces" */
.back-tab-label {
  max-width: 0;
  overflow: hidden;
  white-space: nowrap;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1rem;
  font-weight: 700;
  font-style: italic;
  letter-spacing: .02em;
  color: #111;
  position: relative; z-index: 2;
  transition: max-width .3s cubic-bezier(.2,.8,.4,1), padding .3s cubic-bezier(.2,.8,.4,1);
}
.back-tab:hover .back-tab-label {
  max-width: 130px;
  padding-right: 16px;
}
@media(max-width:576px) {
  .back-tab-label { display: none !important; }
  .back-tab-icon { width: 42px; height: 46px; }
}

/* ─── RESPONSIVE ─── */
@media(max-width:576px){
  .topbar { padding: .6rem 1rem; }
  .brand-tagline { display: none; }
  .forge-footer { flex-direction: column; align-items: stretch; }
  .btn-forge { justify-content: center; }
}