/* =================================================================
   qr.axaix.app — QR Studio
   Brand: axaix · "Obsidian & Liquid Metal"
   ================================================================= */

/* ---------- Tokens ---------- */
:root{
  /* Light theme — white page on warm-neutral surfaces (token names kept; values are light) */
  --obsidian:   #FFFFFF;   /* page background — white */
  --obsidian-1: #FAF8F3;   /* panels / cards */
  --obsidian-2: #F2EEE4;   /* raised / hover */
  --obsidian-3: #E9E2D4;   /* inset surfaces */
  --hairline:   rgba(120,92,48,.22);
  --hairline-2: rgba(26,26,32,.08);

  --bronze:      #9A7536;  /* accent gold, legible on white (~4.4:1) */
  --bronze-deep: #7C5F2E;
  --bronze-dark: #5E4A28;
  --platinum:    #6B5530;
  --platinum-2:  #F3ECDD;

  --ink:      #1A1A20;     /* near-black body text */
  --ink-dim:  #54504A;     /* secondary text (~7:1 on white) */
  --ink-mute: #6E6960;     /* hints/placeholders (~4.9:1 on white) */

  --accent:     #2F55C8;   /* focus ring — high-contrast blue on white */
  --ok:   #2E8B57;
  --warn: #B5731A;
  --bad:  #C0392B;

  --metal-text: linear-gradient(176deg,#8A6A34 0%,#C8A877 30%,#6B5530 50%,#A07E48 70%,#7E5F2E 100%);
  --metal-seam: linear-gradient(180deg,rgba(120,92,48,0) 0%,rgba(154,117,54,.55) 18%,rgba(120,92,48,.9) 50%,rgba(154,117,54,.55) 82%,rgba(120,92,48,0) 100%);
  --metal-sheen: linear-gradient(120deg,transparent 0%,transparent 35%,rgba(255,255,255,.55) 50%,transparent 65%,transparent 100%);

  --display: "Bodoni Moda", "Times New Roman", serif;
  --body:    "Instrument Sans", system-ui, -apple-system, sans-serif;
  --mono:    "Spline Sans Mono", ui-monospace, monospace;

  --fs-eyebrow: clamp(.68rem,.64rem + .2vw,.78rem);
  --fs-body:    clamp(1rem,.97rem + .18vw,1.1rem);
  --fs-lead:    clamp(1.12rem,1.02rem + .5vw,1.36rem);
  --fs-h3:      clamp(1.35rem,1.15rem + 1vw,2rem);
  --fs-h2:      clamp(2rem,1.45rem + 2.5vw,3.2rem);
  --fs-h1:      clamp(2.4rem,1.6rem + 3.4vw,4rem);

  --maxw: 1280px;
  --gut: clamp(1.1rem,4vw,3.4rem);
  --r: 4px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
  --axis-pos: 50;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--obsidian);
  color:var(--ink);
  font-family:var(--body);
  font-size:var(--fs-body);
  line-height:1.6;
  font-weight:380;
  letter-spacing:.005em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,video,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(154,117,54,.24);color:#1A1A20}

/* ---------- Ambient backdrop ---------- */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(120% 70% at 50% -8%,rgba(154,117,54,.06),transparent 55%),
    radial-gradient(90% 50% at 50% 112%,rgba(154,117,54,.035),transparent 60%);
}

/* ---------- Vertical axis signature ---------- */
.axis{
  position:fixed;top:0;left:50%;transform:translateX(-50%);
  width:1px;height:100vh;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,transparent,var(--hairline) 12%,var(--hairline) 88%,transparent);
  opacity:.9;
}
.axis::before{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  top:calc(var(--axis-pos) * 1% - 90px);
  width:2px;height:180px;border-radius:2px;
  background:var(--metal-seam);
  filter:blur(.3px) drop-shadow(0 0 6px rgba(200,168,119,.6));
  transition:top .12s linear;
}
@media (max-width:960px){ .axis{display:none} }

/* ---------- Primitives ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}
.eyebrow{
  font-family:var(--mono);font-size:var(--fs-eyebrow);font-weight:500;
  letter-spacing:.32em;text-transform:uppercase;color:var(--bronze);
  display:inline-flex;align-items:center;gap:.7em;
}
.eyebrow::before{content:"";width:1.6em;height:1px;background:var(--bronze);opacity:.6}
h1,h2,h3,.display{font-family:var(--display);font-weight:500;line-height:1.04;letter-spacing:-.01em}
.h1{font-size:var(--fs-h1)}
.h2{font-size:var(--fs-h2);letter-spacing:-.015em}
.lead{font-size:var(--fs-lead);color:var(--ink-dim);font-weight:360;line-height:1.5;max-width:56ch}
.metal{background:var(--metal-text);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Header ---------- */
.head{
  position:fixed;top:0;left:0;width:100%;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:1.2rem var(--gut);
  transition:padding .4s var(--ease),background .4s,backdrop-filter .4s,border-color .4s;
  border-bottom:1px solid transparent;
}
.head.scrolled{
  padding:.7rem var(--gut);
  background:rgba(255,255,255,.82);backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--hairline);
}
.brand{font-family:var(--display);font-weight:500;font-size:1.45rem;letter-spacing:.04em;
  display:inline-flex;align-items:baseline;gap:.55rem}
.brand .ai{color:var(--bronze);font-style:italic;padding-inline:.02em}
.brand__tag{font-family:var(--mono);font-size:.62rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--ink-mute);transform:translateY(-.15em)}
.head__right{display:flex;align-items:center;gap:1.6rem}
.head__right a.tlink{font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-dim);transition:color .3s}
.head__right a.tlink:hover{color:var(--bronze)}
@media (max-width:560px){ .head__right .tlink{display:none} }

/* ---------- Intro ---------- */
.intro{padding:clamp(7rem,12vw,9rem) 0 clamp(1.5rem,4vw,3rem);position:relative;z-index:2}
.intro .eyebrow{margin-bottom:1.4rem}
.intro h1{margin-bottom:1.1rem;max-width:18ch}
.intro h1 em{font-style:italic}

/* ---------- Studio layout ---------- */
.studio{position:relative;z-index:2;padding-bottom:clamp(4rem,8vw,7rem)}
.studio__grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:clamp(1.5rem,3vw,2.6rem);align-items:start}
@media (max-width:980px){ .studio__grid{grid-template-columns:1fr} }

/* ---------- Panels ---------- */
.panel{
  background:linear-gradient(180deg,#FFFFFF,var(--obsidian-1));
  border:1px solid var(--hairline);border-radius:var(--r);
  padding:clamp(1.2rem,2.4vw,1.8rem);
}
.panel + .panel{margin-top:1.4rem}
.panel__title{font-family:var(--mono);font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;
  color:var(--bronze);display:flex;align-items:center;gap:.7em;margin-bottom:1.3rem}
.panel__title .mk{color:var(--ink-mute)}

/* ---------- Tabs (content types) ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.5rem}
.tab{
  display:inline-flex;align-items:center;gap:.5em;
  padding:.6em 1em;border:1px solid var(--hairline);border-radius:99px;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-dim);transition:.3s var(--ease);white-space:nowrap;
}
.tab svg{width:15px;height:15px;opacity:.8}
.tab:hover{border-color:var(--bronze);color:var(--ink)}
.tab[aria-selected="true"]{background:var(--bronze-deep);border-color:var(--bronze-deep);color:#fff}
.tab[aria-selected="true"] svg{opacity:1}
.tab:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- Forms ---------- */
.form{display:none}
.form.is-active{display:block}
.field{margin-bottom:1.05rem}
.field:last-child{margin-bottom:0}
.field--row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media (max-width:480px){ .field--row{grid-template-columns:1fr} }
label.lbl{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ink-dim);margin-bottom:.5rem}
.inp,.sel,textarea.inp{
  width:100%;background:var(--obsidian);border:1px solid var(--hairline);border-radius:var(--r);
  padding:.78em .9em;color:var(--ink);font-size:.96rem;
  transition:border-color .3s,background .3s,box-shadow .3s;
}
textarea.inp{resize:vertical;min-height:5.5em;line-height:1.5}
.inp::placeholder{color:var(--ink-mute)}
.inp:focus,.sel:focus,textarea.inp:focus{outline:none;border-color:var(--bronze);
  background:var(--obsidian-1);box-shadow:0 0 0 3px rgba(200,168,119,.1)}
.sel{appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A7A39B' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right .9em center;padding-right:2.4em}
.hint{font-size:.78rem;color:var(--ink-mute);margin-top:.45rem;line-height:1.4}

/* checkbox / toggle */
.check{display:inline-flex;align-items:center;gap:.6em;cursor:pointer;font-size:.9rem;color:var(--ink-dim)}
.check input{position:absolute;opacity:0;width:0;height:0}
.check .box{width:38px;height:21px;border-radius:99px;background:var(--obsidian-3);
  border:1px solid var(--hairline);position:relative;transition:.3s var(--ease);flex:none}
.check .box::after{content:"";position:absolute;top:2px;left:2px;width:15px;height:15px;border-radius:50%;
  background:var(--ink-mute);transition:.3s var(--ease)}
.check input:checked + .box{background:rgba(200,168,119,.25);border-color:var(--bronze)}
.check input:checked + .box::after{transform:translateX(17px);background:var(--bronze)}
.check input:focus-visible + .box{outline:2px solid var(--accent);outline-offset:2px}

/* presets */
.presets{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:1.4rem}
.preset{display:inline-flex;align-items:center;gap:.55em;padding:.5em .9em;border-radius:99px;
  border:1px solid var(--hairline);font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-dim);transition:.3s var(--ease)}
.preset .sw{width:13px;height:13px;border-radius:3px;border:1px solid rgba(255,255,255,.2)}
.preset:hover{border-color:var(--bronze);color:var(--ink)}
.preset.is-active{border-color:var(--bronze);color:var(--bronze)}

/* color row */
.colorrow{display:flex;align-items:center;gap:.7rem}
.swatch{position:relative;width:42px;height:42px;border-radius:var(--r);overflow:hidden;flex:none;
  border:1px solid var(--hairline);cursor:pointer}
.swatch input[type=color]{position:absolute;inset:-4px;width:calc(100% + 8px);height:calc(100% + 8px);
  border:none;padding:0;cursor:pointer;background:none}
.colorrow .inp{flex:1;font-family:var(--mono);font-size:.84rem;text-transform:uppercase}

/* slider */
.range{display:flex;align-items:center;gap:1rem}
.range input[type=range]{flex:1;-webkit-appearance:none;appearance:none;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--bronze) var(--fill,40%),var(--hairline) var(--fill,40%));cursor:pointer}
.range input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;
  background:var(--bronze);border:2px solid #fff;box-shadow:0 1px 5px rgba(0,0,0,.25);cursor:pointer}
.range input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;border:2px solid var(--obsidian);
  background:var(--bronze);cursor:pointer}
.range .val{font-family:var(--mono);font-size:.8rem;color:var(--bronze);min-width:3.4em;text-align:right}

/* segmented control */
.seg{display:grid;grid-auto-flow:column;gap:0;border:1px solid var(--hairline);border-radius:var(--r);overflow:hidden}
.seg button{padding:.65em .4em;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-dim);transition:.25s var(--ease);border-right:1px solid var(--hairline)}
.seg button:last-child{border-right:none}
.seg button:hover{color:var(--ink);background:rgba(200,168,119,.05)}
.seg button.is-active{background:var(--bronze-deep);color:#fff}

/* logo dropzone */
.drop{border:1px dashed var(--hairline);border-radius:var(--r);padding:1.1rem;text-align:center;
  transition:.3s var(--ease);cursor:pointer;color:var(--ink-mute);font-size:.86rem}
.drop:hover,.drop.drag{border-color:var(--bronze);color:var(--ink-dim);background:rgba(200,168,119,.04)}
.drop strong{color:var(--bronze);font-weight:500}
.logo-preview{display:none;align-items:center;gap:1rem;margin-top:.9rem}
.logo-preview.is-shown{display:flex}
.logo-preview img{width:46px;height:46px;object-fit:contain;border-radius:6px;background:#fff;padding:4px;flex:none}
.logo-preview .meta{flex:1;font-size:.82rem;color:var(--ink-dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.linkbtn{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--bad)}
.linkbtn:hover{text-decoration:underline}

/* ---------- Preview (sticky) ---------- */
.preview{position:sticky;top:calc(1rem + 56px)}
.previewcard{
  background:linear-gradient(180deg,#FFFFFF,var(--obsidian-1));
  border:1px solid var(--hairline);border-radius:var(--r);padding:clamp(1.2rem,2.4vw,1.6rem);
}
.qrstage{
  position:relative;border-radius:var(--r);overflow:hidden;
  display:grid;place-items:center;padding:clamp(1rem,3vw,1.8rem);min-height:240px;
  background:
    linear-gradient(45deg,rgba(0,0,0,.05) 25%,transparent 25%,transparent 75%,rgba(0,0,0,.05) 75%) 0 0/22px 22px,
    linear-gradient(45deg,rgba(0,0,0,.05) 25%,transparent 25%,transparent 75%,rgba(0,0,0,.05) 75%) 11px 11px/22px 22px,
    var(--obsidian-2);
  border:1px solid var(--hairline);
}
.qrstage svg{width:100%;height:auto;max-width:340px;border-radius:2px;
  filter:drop-shadow(0 16px 36px rgba(40,30,10,.16))}
.qrstage.is-empty svg{display:none}
.qrstage__empty{display:none;text-align:center;color:var(--ink-mute);font-size:.9rem;max-width:24ch}
.qrstage.is-empty .qrstage__empty{display:block}
.qrstage__empty .ic{font-size:1.8rem;margin-bottom:.6rem;opacity:.5}

/* meta / status */
.qrmeta{margin-top:1.1rem;display:flex;flex-wrap:wrap;gap:.5rem}
.badge{font-family:var(--mono);font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;
  padding:.4em .7em;border-radius:99px;border:1px solid var(--hairline);color:var(--ink-dim)}
.badge b{color:var(--ink)}
.status{margin-top:.9rem;font-size:.82rem;line-height:1.5;display:flex;gap:.55em;align-items:flex-start;
  color:var(--ink-dim)}
.status .dot{width:8px;height:8px;border-radius:50%;flex:none;margin-top:.45em;background:var(--ink-mute)}
.status.ok .dot{background:var(--ok)} .status.ok{color:var(--ink-dim)}
.status.warn .dot{background:var(--warn)} .status.warn{color:var(--warn)}
.status.bad .dot{background:var(--bad)} .status.bad{color:var(--bad)}

/* downloads */
.downloads{margin-top:1.3rem;display:flex;flex-direction:column;gap:.7rem}
.dlrow{display:grid;grid-template-columns:1fr auto;gap:.6rem;align-items:center}
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:.9em 1.3em;border-radius:var(--r);
  font-family:var(--mono);font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;font-weight:500;
  overflow:hidden;isolation:isolate;transition:transform .35s var(--ease),background .35s,border-color .35s,color .35s;
}
.btn svg{width:16px;height:16px}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn--primary{background:var(--bronze-deep);color:#fff;border:1px solid var(--bronze-deep)}
.btn--primary::after{content:"";position:absolute;inset:0;z-index:-1;background:var(--metal-sheen);
  background-size:240% 100%;background-position:120% 0;transition:background-position .7s var(--ease)}
.btn--primary:not(:disabled):hover::after{background-position:-60% 0}
.btn--primary:not(:disabled):hover{transform:translateY(-2px)}
.btn--ghost{border:1px solid var(--hairline);color:var(--ink)}
.btn--ghost:not(:disabled):hover{border-color:var(--bronze);color:var(--bronze);background:rgba(200,168,119,.05)}
.btn--sm{padding:.7em 1em;font-size:.7rem}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.sel--inline{width:auto;padding:.6em 2.2em .6em .9em;font-family:var(--mono);font-size:.74rem}

/* toast */
.toast{position:fixed;left:50%;bottom:2rem;translate:-50% 20px;
  background:var(--obsidian-2);border:1px solid var(--bronze);color:var(--ink);
  padding:.8em 1.3em;border-radius:99px;font-family:var(--mono);font-size:.76rem;letter-spacing:.06em;
  z-index:80;opacity:0;pointer-events:none;transition:opacity .35s,translate .35s var(--ease)}
.toast.show{opacity:1;translate:-50% 0}

/* ---------- Feature strip ---------- */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--hairline);
  border:1px solid var(--hairline);border-radius:var(--r);overflow:hidden;margin-top:clamp(2.5rem,5vw,4rem)}
.feat{background:var(--obsidian-1);padding:clamp(1.4rem,2.4vw,2rem)}
.feat .no{font-family:var(--mono);font-size:.72rem;color:var(--bronze);letter-spacing:.15em}
.feat h3{font-size:1.15rem;margin:.7rem 0 .5rem}
.feat p{font-size:.88rem;color:var(--ink-dim)}
@media (max-width:760px){ .features{grid-template-columns:1fr} }

/* ---------- Footer ---------- */
.foot{position:relative;z-index:2;border-top:1px solid var(--hairline);
  padding:clamp(2.6rem,5vw,4rem) var(--gut) 2rem;margin-top:clamp(3rem,6vw,5rem)}
.foot__top{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;
  max-width:var(--maxw);margin-inline:auto}
.foot__brand .brand{font-size:1.7rem}
.foot__brand p{margin-top:.8rem;color:var(--ink-dim);max-width:34ch;font-size:.9rem}
.foot__links{display:flex;gap:2.2rem;flex-wrap:wrap}
.footcol h4{font-family:var(--mono);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--bronze);margin-bottom:.9rem}
.footcol a{display:block;color:var(--ink-dim);font-size:.9rem;padding:.28rem 0;transition:color .3s,padding-left .3s}
.footcol a:hover{color:var(--ink);padding-left:.3rem}
.foot__bottom{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;
  max-width:var(--maxw);margin:2.4rem auto 0;padding-top:1.4rem;border-top:1px solid var(--hairline);
  font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--ink-mute)}
.foot__bottom a:hover{color:var(--bronze)}

/* ---------- WhatsApp float ---------- */
.wa{position:fixed;right:clamp(1rem,3vw,2rem);bottom:clamp(1rem,3vw,2rem);z-index:60;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  background:var(--bronze-deep);color:#fff;box-shadow:0 14px 40px rgba(0,0,0,.22);
  transition:transform .4s var(--ease),box-shadow .4s}
.wa:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 18px 50px rgba(200,168,119,.35)}
.wa svg{width:28px;height:28px}

/* ---------- Legal pages ---------- */
.legal{padding:clamp(7rem,12vw,9rem) 0 4rem;position:relative;z-index:2}
.legal h1{margin-bottom:.4rem}
.legal .updated{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-mute);margin-bottom:2.4rem}
.legal h2{font-size:1.4rem;margin:2.2rem 0 .8rem}
.legal p,.legal li{color:var(--ink-dim);max-width:70ch;margin-bottom:.8rem}
.legal ul{padding-left:1.2rem}
.legal a{color:var(--bronze)}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important}
  .axis::before{transition:none}
}