/* ============================================================
   NOVA — Crypto Electronics Marketplace
   Design System  ·  light public theme + shared tokens
   ============================================================ */

/* ---- Fonts ------------------------------------------------ */
@import url('https://api.fontshare.com/v2/css?f[]=clash-display@400,500,600,700&f[]=satoshi@400,500,700,900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---- Design Tokens --------------------------------------- */
:root{
  /* type */
  --font-display:'Clash Display','Satoshi',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-body:'Satoshi',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
  --font-mono:'JetBrains Mono','SF Mono',ui-monospace,Menlo,monospace;

  /* warm-neutral light surface system */
  --paper:#F4F2ED;          /* page background — warm white */
  --paper-2:#FBFAF7;        /* lighter zones */
  --card:#FFFFFF;           /* card surface */
  --card-2:#FCFBF9;
  --ink:#16140F;            /* near-black, warm */
  --ink-2:#3B3833;          /* graphite */
  --muted:#7C786F;          /* warm gray text */
  --muted-2:#A6A299;        /* faint text */
  --line:#E9E5DC;           /* hairline */
  --line-2:#F0EDE5;
  --silver-1:#EFEDE7;       /* product surface light */
  --silver-2:#D9D6CE;       /* product surface mid */
  --silver-3:#B9B6AD;

  /* accents — used sparingly & elegantly */
  --green:#16A06B;          /* crypto / USDT / success */
  --green-soft:#E6F4ED;
  --green-ink:#0C6B47;
  --blue:#3A63D8;           /* trust / orders */
  --blue-soft:#E9EEFC;
  --amber:#D8902B;          /* warnings */
  --amber-soft:#FBF0DC;
  --red:#D6483B;            /* errors */
  --red-soft:#FBE9E7;

  /* radii — fluid & soft */
  --r-xs:10px;
  --r-sm:14px;
  --r-md:18px;
  --r-lg:24px;
  --r-xl:30px;
  --r-2xl:36px;
  --r-pill:999px;

  /* layered warm shadows */
  --sh-xs:0 1px 2px rgba(22,20,15,.05);
  --sh-sm:0 1px 2px rgba(22,20,15,.04), 0 2px 6px rgba(22,20,15,.05);
  --sh-md:0 2px 6px rgba(22,20,15,.04), 0 10px 26px rgba(22,20,15,.07);
  --sh-lg:0 4px 12px rgba(22,20,15,.05), 0 22px 50px rgba(22,20,15,.10);
  --sh-xl:0 8px 22px rgba(22,20,15,.07), 0 40px 90px rgba(22,20,15,.14);
  --sh-glow:0 10px 34px rgba(22,160,107,.20);
  --sh-glow-blue:0 10px 34px rgba(58,99,216,.18);

  /* glass */
  --glass:rgba(255,255,255,.72);
  --glass-line:rgba(255,255,255,.65);

  /* motion */
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --spring:cubic-bezier(.34,1.56,.64,1);
  --t-fast:.18s;
  --t:.32s;
  --t-slow:.6s;

  /* layout */
  --maxw:1240px;
  --gut:24px;
  --header-h:74px;
}

/* ---- Reset ----------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--ink);
  line-height:1.55;
  font-size:16px;
  font-weight:500;
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
a{color:inherit;text-decoration:none}
ul{list-style:none}
::selection{background:var(--green);color:#fff}

/* refined scrollbar */
*::-webkit-scrollbar{width:11px;height:11px}
*::-webkit-scrollbar-thumb{background:#d7d3c9;border-radius:99px;border:3px solid var(--paper)}
*::-webkit-scrollbar-thumb:hover{background:#c2bdb1}

/* ---- Typography ------------------------------------------ */
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:600;line-height:1.04;letter-spacing:-.03em;color:var(--ink)}
.display{font-size:clamp(2.6rem,6vw,4.6rem);font-weight:600;letter-spacing:-.04em;line-height:.98}
.h1{font-size:clamp(2rem,4.4vw,3.2rem);letter-spacing:-.035em}
.h2{font-size:clamp(1.7rem,3.4vw,2.5rem)}
.h3{font-size:clamp(1.25rem,2vw,1.6rem)}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.74rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase;
  color:var(--green-ink);
  display:inline-flex;align-items:center;gap:.55em;
}
.eyebrow::before{content:"";width:18px;height:1.5px;background:currentColor;opacity:.5;border-radius:2px}
.lead{font-size:clamp(1.05rem,1.5vw,1.22rem);color:var(--muted);font-weight:500;line-height:1.5}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ---- Layout ---------------------------------------------- */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}
.section{padding-block:clamp(34px,4.4vw,64px)}
.section-head{max-width:660px;margin-bottom:clamp(18px,2.6vw,30px)}
.section-head.center{margin-inline:auto;text-align:center}
.section-head .h2{margin:.5rem 0 .9rem}
.row{display:flex;align-items:center}
.between{display:flex;align-items:center;justify-content:space-between;gap:16px}
.grid{display:grid}
.flow > * + *{margin-top:1rem}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  --bg:var(--ink);--fg:#fff;--bd:transparent;
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  font-family:var(--font-body);font-weight:700;font-size:.95rem;letter-spacing:-.01em;
  padding:.92em 1.5em;border-radius:var(--r-pill);
  background:var(--bg);color:var(--fg);border:1.5px solid var(--bd);
  cursor:pointer;position:relative;overflow:hidden;white-space:nowrap;
  transition:transform var(--t) var(--spring),box-shadow var(--t) var(--ease),background var(--t-fast),color var(--t-fast),border-color var(--t-fast);
  will-change:transform;
}
.btn svg{width:1.15em;height:1.15em;flex:none}
.btn::after{ /* sheen */
  content:"";position:absolute;inset:0;border-radius:inherit;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.22) 50%,transparent 70%);
  transform:translateX(-120%);transition:transform .7s var(--ease);
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn:hover::after{transform:translateX(120%)}
.btn:active{transform:translateY(0) scale(.985)}
.btn-lg{padding:1.08em 1.9em;font-size:1.02rem}
.btn-sm{padding:.62em 1.05em;font-size:.85rem}
.btn-block{display:flex;width:100%}

.btn-primary{--bg:var(--ink);--fg:#fff}
.btn-primary:hover{--bg:#000}
.btn-green{--bg:var(--green);--fg:#fff}
.btn-green:hover{--bg:#13905f;box-shadow:var(--sh-glow)}
.btn-ghost{--bg:transparent;--fg:var(--ink);--bd:var(--line);box-shadow:var(--sh-xs)}
.btn-ghost:hover{--bg:var(--card);--bd:#dcd8cd}
.btn-soft{--bg:#fff;--fg:var(--ink);box-shadow:var(--sh-sm)}
.btn-soft:hover{--bg:#fff;box-shadow:var(--sh-md)}
.btn-link{background:none;color:var(--ink);padding:.4em 0;border-radius:0;font-weight:700}
.btn-link::after{display:none}
.btn-link .arr{transition:transform var(--t) var(--ease)}
.btn-link:hover{transform:none}
.btn-link:hover .arr{transform:translateX(4px)}

/* icon button */
.icon-btn{
  width:42px;height:42px;display:inline-grid;place-items:center;border-radius:var(--r-sm);
  color:var(--ink-2);background:transparent;position:relative;
  transition:background var(--t-fast),color var(--t-fast),transform var(--t) var(--spring),box-shadow var(--t-fast);
}
.icon-btn svg{width:21px;height:21px}
.icon-btn:hover{background:#fff;color:var(--ink);box-shadow:var(--sh-sm);transform:translateY(-1px)}
.icon-btn:active{transform:scale(.93)}

/* ============================================================
   BADGES & PILLS
   ============================================================ */
.badge{
  display:inline-flex;align-items:center;gap:.42em;
  font-size:.72rem;font-weight:700;letter-spacing:.01em;
  padding:.34em .72em;border-radius:var(--r-pill);
  background:var(--silver-1);color:var(--ink-2);line-height:1;
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.badge-stock{background:var(--green-soft);color:var(--green-ink)}
.badge-hot{background:var(--red-soft);color:#b23529}
.badge-new{background:var(--blue-soft);color:#2a4cbf}
.badge-best{background:#F3EFE6;color:#8a6d2a}
.badge-out{background:#F0EEE9;color:var(--muted)}

.chip{
  display:inline-flex;align-items:center;gap:.5em;
  font-size:.84rem;font-weight:600;color:var(--ink-2);
  padding:.55em 1em;border-radius:var(--r-pill);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--sh-xs);
  transition:all var(--t) var(--ease);cursor:pointer;
}
.chip:hover{border-color:#dcd6c9;box-shadow:var(--sh-sm);transform:translateY(-1px)}
.chip.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* USDT badge */
.usdt-badge{
  display:inline-flex;align-items:center;gap:.5em;
  padding:.5em .9em;border-radius:var(--r-pill);
  background:var(--green-soft);color:var(--green-ink);
  font-weight:700;font-size:.82rem;border:1px solid rgba(22,160,107,.16);
}
.usdt-badge .tether{width:18px;height:18px;border-radius:50%;background:var(--green);display:grid;place-items:center;color:#fff;font-size:.7rem;font-weight:700;flex:none}

/* ============================================================
   FORM CONTROLS
   ============================================================ */
.field{position:relative;display:flex;align-items:center}
.input{
  width:100%;font-size:.95rem;font-weight:500;
  padding:.85em 1.05em;border-radius:var(--r-sm);
  background:var(--card);color:var(--ink);
  border:1.5px solid var(--line);
  transition:border-color var(--t-fast),box-shadow var(--t-fast),background var(--t-fast);
  outline:none;
}
.input::placeholder{color:var(--muted-2);font-weight:500}
.input:hover{border-color:#dcd6c9}
.input:focus{border-color:var(--green);box-shadow:0 0 0 4px var(--green-soft);background:#fff}
textarea.input{resize:vertical;min-height:96px;line-height:1.5}

.select{
  appearance:none;cursor:pointer;padding-right:2.6em;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%237C786F' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 1em center;
}

/* search */
.search{
  display:flex;align-items:center;gap:.7em;flex:1;
  background:var(--card-2);border:1.5px solid var(--line);
  border-radius:var(--r-pill);padding:.2em .35em .2em 1.1em;
  transition:border-color var(--t-fast),box-shadow var(--t-fast),background var(--t-fast);
}
.search svg{width:19px;height:19px;color:var(--muted);flex:none}
.search input{flex:1;border:none;background:none;outline:none;font-size:.92rem;font-weight:500;padding:.7em 0}
.search input::placeholder{color:var(--muted-2)}
.search:focus-within{border-color:var(--green);box-shadow:0 0 0 4px var(--green-soft);background:#fff}
.search .search-key{font-family:var(--font-mono);font-size:.7rem;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:7px;padding:.25em .5em;box-shadow:var(--sh-xs)}

/* toggle */
.toggle{position:relative;width:42px;height:24px;border-radius:99px;background:#dcd8ce;transition:background var(--t) var(--ease);flex:none;cursor:pointer}
.toggle::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:var(--sh-sm);transition:transform var(--t) var(--spring)}
.toggle.on{background:var(--green)}
.toggle.on::after{transform:translateX(18px)}

/* checkbox row */
.check{display:flex;align-items:center;gap:.7em;cursor:pointer;padding:.4em 0;color:var(--ink-2);font-weight:500;font-size:.92rem;transition:color var(--t-fast)}
.check:hover{color:var(--ink)}
.check .box{width:20px;height:20px;border-radius:7px;border:1.5px solid var(--line);background:#fff;display:grid;place-items:center;transition:all var(--t-fast);flex:none}
.check .box svg{width:13px;height:13px;color:#fff;opacity:0;transform:scale(.6);transition:all var(--t-fast)}
.check.on .box{background:var(--green);border-color:var(--green)}
.check.on .box svg{opacity:1;transform:scale(1)}

/* ============================================================
   CARDS & SURFACES
   ============================================================ */
.card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-sm);
  transition:transform var(--t) var(--ease-out),box-shadow var(--t) var(--ease),border-color var(--t);
}
.glass{
  background:var(--glass);backdrop-filter:blur(22px) saturate(180%);
  -webkit-backdrop-filter:blur(22px) saturate(180%);
  border:1px solid var(--glass-line);
}
.divider{height:1px;background:var(--line);border:none;width:100%}

/* ============================================================
   ATMOSPHERE — subtle depth, never flashy
   ============================================================ */
.aurora{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.aurora span{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}
.aurora .a1{width:520px;height:520px;background:radial-gradient(circle,rgba(22,160,107,.20),transparent 70%);top:-180px;right:-120px}
.aurora .a2{width:440px;height:440px;background:radial-gradient(circle,rgba(58,99,216,.14),transparent 70%);bottom:-160px;left:-100px}
.aurora .a3{width:360px;height:360px;background:radial-gradient(circle,rgba(216,144,43,.10),transparent 70%);top:30%;left:40%}
.grain{
  position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.4;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.05'/%3E%3C/svg%3E");
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease-out),transform .8s var(--ease-out)}
[data-reveal].in{opacity:1;transform:none}
[data-reveal][data-reveal="scale"]{transform:scale(.94)}
[data-reveal][data-reveal="scale"].in{transform:none}
[data-reveal][data-reveal="left"]{transform:translateX(-34px)}
[data-reveal][data-reveal="left"].in{transform:none}
[data-reveal][data-reveal="right"]{transform:translateX(34px)}
[data-reveal][data-reveal="right"].in{transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1!important;transform:none!important}
}

/* ============================================================
   PRODUCT VISUALS (bespoke CSS/SVG renders — no stock images)
   ============================================================ */
.pv{position:relative;width:100%;aspect-ratio:1/1;display:grid;place-items:center;border-radius:var(--r-lg);overflow:hidden}
.pv-stage{
  position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 50% 18%,#ffffff 0%,#f3f1ea 55%,#e9e6dd 100%);
}
.pv-stage::after{ /* soft floor shadow */
  content:"";position:absolute;left:50%;bottom:16%;transform:translateX(-50%);
  width:62%;height:30px;background:radial-gradient(ellipse,rgba(22,20,15,.18),transparent 70%);filter:blur(8px);
}
.pv svg{position:relative;z-index:1;width:64%;height:64%;filter:drop-shadow(0 18px 26px rgba(22,20,15,.16))}
.pv.tint-graphite .pv-stage{background:radial-gradient(120% 90% at 50% 18%,#3a3a40 0%,#26262b 60%,#1a1a1e 100%)}
.pv.tint-blue .pv-stage{background:radial-gradient(120% 90% at 50% 18%,#eef2fb 0%,#dfe6f7 60%,#d2dbf0 100%)}
.pv.tint-sand .pv-stage{background:radial-gradient(120% 90% at 50% 18%,#fbf6ec 0%,#f3ead7 60%,#ecdfc4 100%)}
.pv.tint-green .pv-stage{background:radial-gradient(120% 90% at 50% 18%,#eaf6f0 0%,#d9efe4 60%,#c8e8d6 100%)}

/* ============================================================
   UTILITIES
   ============================================================ */
.text-green{color:var(--green)}
.text-blue{color:var(--blue)}
.text-muted{color:var(--muted)}
.text-center{text-align:center}
.mono-price{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.hide{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.nowrap{white-space:nowrap}
.spin{animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes pulse-dot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.7)}}
@keyframes shimmer{0%{background-position:-450px 0}100%{background-position:450px 0}}

/* skeleton / loading */
.skeleton{
  background:linear-gradient(90deg,#efece4 25%,#f7f5ef 50%,#efece4 75%);
  background-size:450px 100%;animation:shimmer 1.4s infinite linear;border-radius:var(--r-sm);
}

/* focus visibility for a11y */
:focus-visible{outline:2.5px solid var(--green);outline-offset:3px;border-radius:4px}