/* ================================================================
   Minto23 · 梅花易数 — Open Design optimized
   Ink-wash dark canvas · double-bezel · spring motion · gold accent
   ================================================================ */

/* ─── RESET ─────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}

/* ─── TOKENS ────────────────────────────────────────────────── */
:root{
  --bg:        #08080f;
  --bg-raise:  #0e0e1a;
  --surface:   #111122;
  --surface-hi:#1a1a30;
  --fg:        #e8e4dc;
  --fg-dim:    #9a968a;
  --fg-faint:  #6b6760;

  --accent:       #c8a44e;
  --accent-bright:#e2c87a;
  --accent-dim:   #9a7b3a;
  --accent-glow:  rgba(200,164,78,0.18);
  --accent-wash:  rgba(200,164,78,0.07);
  --accent-border:rgba(200,164,78,0.14);

  --gold:        var(--accent);
  --gold-bright: var(--accent-bright);
  --gold-dim:    var(--accent-dim);
  --gold-glow:   var(--accent-glow);
  --gold-wash:   var(--accent-wash);
  --gold-border: var(--accent-border);

  --border:      rgba(255,255,255,0.06);
  --border-strong:rgba(255,255,255,0.10);
  --border-hairline:rgba(255,255,255,0.04);

  --ji:          #5cdb8b;
  --ji-bg:       rgba(92,219,139,0.08);
  --ji-glow:     rgba(92,219,139,0.22);
  --ping:        #f0c74a;
  --ping-bg:     rgba(240,199,74,0.08);
  --ping-glow:   rgba(240,199,74,0.22);
  --xiong:       #e85d5d;
  --xiong-bg:    rgba(232,93,93,0.08);
  --xiong-glow:  rgba(232,93,93,0.22);

  --font-display: 'Noto Serif SC','Songti SC','Source Han Serif SC',Georgia,serif;
  --font-body:    'Noto Sans SC',-apple-system,'PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-mono:    'JetBrains Mono','SF Mono','Cascadia Code',ui-monospace,Menlo,monospace;

  --fs-h1:   clamp(40px, 7vw, 80px);
  --fs-h2:   clamp(28px, 4.5vw, 48px);
  --fs-h3:   20px;
  --fs-lead: 18px;
  --fs-body: 15px;
  --fs-meta: 12px;
  --fs-eyebrow: 10px;

  --gap-xs: 8px; --gap-sm: 12px; --gap-md: 20px;
  --gap-lg: 36px; --gap-xl: 64px; --gap-2xl: 104px;
  --container: 720px; --gutter: 24px;

  --radius-sm: 10px; --radius: 20px;
  --radius-lg: 32px; --radius-full: 9999px;

  --spring:    cubic-bezier(0.32,0.72,0,1);
  --spring-out:cubic-bezier(0.16,1,0.3,1);
  --spring-in: cubic-bezier(0.4,0,0.68,0.06);

  --shadow-card:  0 1px 0 var(--border-hairline),0 20px 40px -18px rgba(0,0,0,0.5);
  --shadow-raise: 0 1px 0 var(--border),0 28px 56px -20px rgba(0,0,0,0.6);
}

/* ─── BASE ──────────────────────────────────────────────────── */
body{
  background:var(--bg);color:var(--fg);
  font-family:var(--font-body);font-size:var(--fs-body);
  line-height:1.65;min-height:100dvh;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
p{text-wrap:pretty}
h1,h2,h3,h4{text-wrap:balance}

/* ─── AMBIENT ───────────────────────────────────────────────── */
.ambient-blob{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.ambient-blob::before{
  content:'';position:absolute;
  width:clamp(400px,70vw,900px);height:clamp(400px,70vw,900px);
  border-radius:50%;
  background:radial-gradient(circle,rgba(200,164,78,0.07) 0%,transparent 70%);
  top:10%;left:50%;transform:translateX(-50%);filter:blur(80px);
  animation:blob-drift 28s var(--spring) infinite alternate;
}
@keyframes blob-drift{
  0%{transform:translateX(-50%) translateY(0) scale(1)}
  33%{transform:translateX(-45%) translateY(40px) scale(1.12)}
  66%{transform:translateX(-55%) translateY(-20px) scale(0.94)}
  100%{transform:translateX(-50%) translateY(10px) scale(1.06)}
}
.bg-grid{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.012;
  background-image:linear-gradient(rgba(255,255,255,.4) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.4) 1px,transparent 1px);
  background-size:72px 72px;
}

/* ─── TOPNAV ────────────────────────────────────────────────── */
.topnav{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;padding:0 0 8px;position:relative;z-index:100}
.topnav-link{
  padding:6px 14px;border-radius:20px;background:var(--surface);
  border:1px solid var(--border);font-family:var(--font-body);
  font-size:12px;font-weight:500;color:var(--fg-dim);cursor:pointer;
  transition:all .2s;text-decoration:none;white-space:nowrap;
}
.topnav-link:hover{border-color:var(--accent);color:var(--accent-bright);background:var(--accent-wash)}
.topnav-link.active{border-color:var(--accent);color:var(--accent-bright);background:var(--accent-wash);font-weight:700;pointer-events:none}

/* ─── PAGE WRAP ─────────────────────────────────────────────── */
.page-wrap{position:relative;z-index:3;max-width:var(--container);margin:0 auto;padding:0 var(--gutter) 80px}

/* ─── HERO ──────────────────────────────────────────────────── */
.hero{text-align:center;padding:clamp(80px,14vh,140px) 0 clamp(36px,6vh,64px);position:relative}
.hero .bagua-symbol{font-size:clamp(48px,9vw,96px);line-height:.96;font-weight:900;letter-spacing:-0.03em;margin-bottom:12px;display:block;opacity:.8;animation:symbol-float 6s var(--spring) infinite}
@keyframes symbol-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.hero h1{font-family:var(--font-display);font-size:var(--fs-h1);font-weight:900;color:var(--fg);letter-spacing:-0.02em;line-height:.96}
.hero h1 .accent-word{background:linear-gradient(135deg,var(--gold-bright),var(--gold-dim));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero .lede{font-size:var(--fs-lead);color:var(--fg-dim);max-width:38ch;margin:14px auto 0;line-height:1.5;font-weight:400}

/* ─── SECTION ───────────────────────────────────────────────── */
.section{padding-block:clamp(36px,6vh,64px)}
.section+.section{border-top:1px solid var(--border-hairline)}

/* ─── EYEBROW ───────────────────────────────────────────────── */
.eyebrow{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:var(--fs-eyebrow);font-weight:500;color:var(--accent-bright);letter-spacing:.2em;text-transform:uppercase;padding:4px 12px;border-radius:var(--radius-full);background:var(--accent-wash);border:1px solid var(--accent-border);margin-bottom:var(--gap-md)}

/* ─── DOUBLE-BEZEL CARD ─────────────────────────────────────── */
.bezel-card{position:relative;padding:1.5px;border-radius:var(--radius-lg);background:var(--border);box-shadow:var(--shadow-card);transition:box-shadow .6s var(--spring),transform .6s var(--spring)}
.bezel-card:hover{box-shadow:var(--shadow-raise)}
.bezel-card .bezel-core{background:var(--surface-hi);border-radius:calc(var(--radius-lg) - 1.5px);padding:clamp(24px,4vw,40px) clamp(20px,3.5vw,36px);border:1px solid var(--border-hairline);position:relative;overflow:hidden}
.bezel-card.accent-top .bezel-core::before{content:'';position:absolute;top:0;left:18px;right:18px;height:1px;background:linear-gradient(90deg,transparent,rgba(200,164,78,.18),var(--accent-dim),rgba(200,164,78,.18),transparent)}
.bezel-card.gold-top .bezel-core::before{content:'';position:absolute;top:0;left:18px;right:18px;height:1px;background:linear-gradient(90deg,transparent,rgba(200,164,78,.18),var(--gold-dim),rgba(200,164,78,.18),transparent)}
.bezel-card.glow-auspicious .bezel-core{box-shadow:inset 0 0 60px var(--ji-glow)}
.bezel-card.glow-neutral .bezel-core{box-shadow:inset 0 0 60px var(--ping-glow)}
.bezel-card.glow-inauspicious .bezel-core{box-shadow:inset 0 0 60px var(--xiong-glow)}

/* ─── VERDICT ───────────────────────────────────────────────── */
.verdict-icon-circle{width:72px;height:72px;border-radius:50%;margin:0 auto 16px;display:grid;place-items:center;font-size:2rem;border:1px solid var(--border-strong);transition:all .6s var(--spring)}
.glow-auspicious .verdict-icon-circle{background:var(--ji-bg);border-color:rgba(92,219,139,.2);box-shadow:0 0 32px var(--ji-glow)}
.glow-neutral .verdict-icon-circle{background:var(--ping-bg);border-color:rgba(240,199,74,.2);box-shadow:0 0 32px var(--ping-glow)}
.glow-inauspicious .verdict-icon-circle{background:var(--xiong-bg);border-color:rgba(232,93,93,.2);box-shadow:0 0 32px var(--xiong-glow)}
.verdict-label{font-family:var(--font-display);font-size:clamp(24px,5vw,36px);font-weight:900;margin-bottom:6px;letter-spacing:-0.01em}
.glow-auspicious .verdict-label{color:var(--ji)}
.glow-neutral .verdict-label{color:var(--ping)}
.glow-inauspicious .verdict-label{color:var(--xiong)}
.verdict-summary{font-size:var(--fs-lead);color:var(--fg);line-height:1.5;font-weight:500;max-width:36ch;margin:0 auto}
.verdict-target{font-size:var(--fs-meta);color:var(--fg-faint);margin-top:10px;display:flex;align-items:center;justify-content:center;gap:5px}
.verdict-target::before,.verdict-target::after{content:'';width:18px;height:1px;background:var(--border-strong)}

/* ─── HEXAGRAM FLOW ─────────────────────────────────────────── */
.hex-flow{display:flex;align-items:flex-start;justify-content:center;gap:clamp(4px,2vw,16px);flex-wrap:wrap}
.hex-block{text-align:center;min-width:72px}
.hex-block .hex-stage{font-family:var(--font-mono);font-size:var(--fs-eyebrow);color:var(--fg-faint);letter-spacing:.15em;text-transform:uppercase;margin-bottom:10px}
.hex-block .hex-name{font-family:var(--font-display);font-size:15px;font-weight:700;color:var(--fg);letter-spacing:.02em;margin-bottom:12px}
.hex-block .hex-name.changed{color:var(--accent-bright)}
.hex-flow .flow-arrow{font-size:18px;color:var(--accent-dim);flex-shrink:0;padding-top:30px}

/* Yao lines */
.hex-yao-svg{display:flex;flex-direction:column-reverse;gap:0;align-items:center}
.hex-yao-svg .yao-row{display:flex;align-items:center;gap:5px;padding:5px 0}
.hex-yao-svg .yao-num{font-size:10px;color:var(--fg-faint);width:14px;text-align:right;font-family:var(--font-mono);flex-shrink:0}
.hex-yao-svg .yao-bar{width:72px;height:6px;border-radius:3px;background:linear-gradient(90deg,var(--fg-dim),var(--fg),var(--fg-dim));transition:all .5s var(--spring)}
.hex-yao-svg .yao-bar.yin{background:transparent;display:flex;justify-content:space-between}
.hex-yao-svg .yao-bar.yin .half{width:30px;height:6px;border-radius:3px;background:linear-gradient(90deg,var(--fg-dim),var(--fg),var(--fg-dim))}
.hex-yao-svg .yao-row.dong .yao-bar,.hex-yao-svg .yao-row.dong .yao-bar.yin .half{background:linear-gradient(90deg,var(--accent-dim),var(--accent-bright),var(--accent-dim));box-shadow:0 0 12px var(--accent-glow),0 0 28px rgba(200,164,78,.1)}
.hex-yao-svg .yao-row.dong .yao-num{color:var(--accent-bright);font-weight:700}

/* Ti/Yong */
.tiyong-strip{display:flex;justify-content:center;gap:14px;margin-top:18px;flex-wrap:wrap}
.tiyong-pill{padding:7px 18px;border-radius:var(--radius-full);font-size:13px;font-weight:600;border:1px solid;letter-spacing:.02em}
.tiyong-pill.ti{background:var(--accent-wash);border-color:var(--accent-border);color:var(--accent-bright)}
.tiyong-pill.yong{background:var(--gold-wash);border-color:var(--gold-border);color:var(--gold-bright)}
.tiyong-relation{margin-top:12px;text-align:center;font-size:14px;color:var(--fg-dim);font-weight:500}
.tiyong-relation strong{color:var(--fg)}

/* ─── EXTERNAL SIGNS SECTION ────────────────────────────────── */
.signals-section{margin-bottom:26px}
.signals-section h3{font-family:var(--font-display);font-size:var(--fs-h3);font-weight:700;color:var(--fg);margin-bottom:12px;display:flex;align-items:center;gap:10px;letter-spacing:.01em}
.signals-section h3 .sec-icon{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;background:var(--accent-wash);font-size:15px;flex-shrink:0}
.signals-section .signals-text{font-size:14px;color:var(--fg-dim);line-height:1.85;padding-left:42px;white-space:pre-wrap}
.signals-list{display:flex;flex-wrap:wrap;gap:8px;padding-left:42px;margin-top:4px}
.signal-tag{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:var(--radius-full);font-size:12px;font-weight:500;background:var(--accent-wash);border:1px solid var(--accent-border);color:var(--accent-bright)}

/* ─── REPORT ────────────────────────────────────────────────── */
.report-section{margin-bottom:26px}
.report-section:last-child{margin-bottom:0}
.report-section h3{font-family:var(--font-display);font-size:var(--fs-h3);font-weight:700;color:var(--fg);margin-bottom:12px;display:flex;align-items:center;gap:10px;letter-spacing:.01em}
.report-section h3 .sec-icon{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;background:var(--accent-wash);font-size:15px;flex-shrink:0}
.report-section p{font-size:14px;color:var(--fg-dim);line-height:1.9;padding-left:42px}
.report-divider{height:1px;margin:22px 0;background:linear-gradient(90deg,transparent,var(--border),transparent)}

/* Action advice */
.advice-box{padding:18px 22px;border-radius:var(--radius);background:rgba(200,164,78,.04);border:1px solid var(--accent-border);margin-top:6px}
.advice-box h4{font-size:14px;color:var(--accent-bright);margin-bottom:10px;font-weight:600}
.advice-box li{font-size:13px;color:var(--fg-dim);padding:5px 0;list-style:none;line-height:1.5}
.advice-box li::before{content:'→ ';color:var(--accent);font-weight:700}

/* ─── BUTTON-IN-BUTTON ──────────────────────────────────────── */
.btn-primary{display:inline-flex;align-items:center;gap:10px;padding:14px 20px 14px 28px;border-radius:var(--radius-full);font-size:15px;font-weight:600;letter-spacing:.02em;border:none;color:#fff;background:linear-gradient(135deg,#c8a44e 0%,#b8923d 30%,#d4b05a 60%,#a88130 100%);box-shadow:0 2px 0 rgba(0,0,0,.2),0 8px 24px rgba(200,164,78,.18);transition:all .5s var(--spring);position:relative;overflow:hidden;width:100%;justify-content:center}
.btn-primary .trailing-icon{width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.15);display:grid;place-items:center;font-size:14px;transition:all .5s var(--spring)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 0 rgba(0,0,0,.2),0 12px 36px rgba(200,164,78,.28)}
.btn-primary:hover .trailing-icon{transform:translate(1px,-1px) scale(1.08);background:rgba(255,255,255,.22)}
.btn-primary:active{transform:translateY(0) scale(.98);transition:all .15s var(--spring-in)}
.btn-primary:disabled{opacity:.35;cursor:not-allowed;transform:none}
.btn-primary:disabled:hover{box-shadow:0 2px 0 rgba(0,0,0,.2),0 8px 24px rgba(200,164,78,.18)}
.btn-primary:disabled:hover .trailing-icon{transform:none;background:rgba(255,255,255,.15)}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:14px 22px;border-radius:var(--radius-full);font-size:14px;font-weight:500;letter-spacing:.02em;background:rgba(255,255,255,.03);border:1px solid var(--border);color:var(--fg-dim);transition:all .5s var(--spring);flex:1;min-width:120px}
.btn-ghost:hover{border-color:var(--accent-border);color:var(--accent-bright);background:var(--accent-wash);transform:translateY(-1px)}
.btn-back-row{margin-bottom:var(--gap-md)}
.btn-back{display:inline-flex;align-items:center;gap:4px;padding:8px 18px;border-radius:var(--radius-full);background:rgba(255,255,255,.03);border:1px solid var(--border);color:var(--fg-dim);font-size:13px;transition:all .4s var(--spring)}
.btn-back:hover{color:var(--fg);border-color:var(--border-strong);background:rgba(255,255,255,.06)}

/* ─── DEEP DIVE BANNER ──────────────────────────────────────── */
.deep-banner{display:none;align-items:center;justify-content:space-between;gap:14px;margin-top:var(--gap-md);padding:16px 22px;border-radius:var(--radius);background:linear-gradient(135deg,var(--gold-wash),rgba(200,164,78,.02));border:1px solid var(--gold-border)}
.deep-banner.visible{display:flex}
.deep-banner .banner-text{font-size:13px;color:var(--gold-bright);font-weight:500}
.deep-banner .btn-mini{padding:8px 18px;border-radius:var(--radius-full);font-size:12px;font-weight:600;cursor:pointer;white-space:nowrap;background:var(--gold);color:var(--bg);border:none;transition:all .4s var(--spring)}
.deep-banner .btn-mini:hover{box-shadow:0 4px 18px var(--gold-glow);transform:scale(1.04)}

/* ─── INPUT ─────────────────────────────────────────────────── */
.method-tab-strip{display:flex;gap:0;margin-bottom:22px;border-radius:var(--radius-full);overflow:hidden;border:1px solid var(--border-strong);background:rgba(0,0,0,.15)}
.method-tab{flex:1;padding:10px 4px;text-align:center;cursor:pointer;font-size:11px;font-weight:500;color:var(--fg-dim);transition:all .35s var(--spring);user-select:none;border-right:1px solid var(--border-strong)}
.method-tab:last-child{border-right:none}
.method-tab:hover{color:var(--fg);background:rgba(255,255,255,.03)}
.method-tab.active{color:var(--accent-bright);background:var(--accent-wash);font-weight:700;box-shadow:inset 0 2px 0 var(--accent)}
.method-tab .tab-icon{display:block;font-size:.95rem;margin-bottom:1px}

/* External signs textarea */
.external-area{margin-bottom:var(--gap-md)}
.external-area textarea{width:100%;background:rgba(0,0,0,.28);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--fg);font-family:var(--font-body);font-size:14px;padding:14px 16px;resize:none;min-height:88px;line-height:1.6;transition:all .4s var(--spring)}
.external-area textarea:focus{outline:none;border-color:var(--accent-dim);box-shadow:0 0 0 3px var(--accent-wash),0 0 28px var(--accent-glow)}
.external-area textarea::placeholder{color:var(--fg-faint);opacity:.3}
.external-hint{font-size:11px;color:var(--fg-faint);margin-top:4px}
.question-wrap{margin-bottom:var(--gap-md)}
.question-wrap label{display:block;font-size:13px;color:var(--fg-dim);margin-bottom:6px;font-weight:500}
.question-wrap textarea{width:100%;background:rgba(0,0,0,.28);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--fg);font-family:var(--font-body);font-size:14px;padding:14px 16px;resize:none;min-height:76px;line-height:1.6;transition:all .4s var(--spring)}
.question-wrap textarea:focus{outline:none;border-color:var(--accent-dim);box-shadow:0 0 0 3px var(--accent-wash),0 0 28px var(--accent-glow)}
.question-wrap textarea::placeholder{color:var(--fg-faint);opacity:.3}
.char-count{text-align:right;font-size:11px;color:var(--fg-faint);margin-top:4px;font-family:var(--font-mono)}
.number-input-area{margin-bottom:var(--gap-md)}
.number-input-area label{display:block;font-size:13px;color:var(--fg-dim);margin-bottom:8px;font-weight:500}
.number-inputs{display:flex;gap:8px;align-items:center}
.number-inputs input{width:100%;background:rgba(0,0,0,.28);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--fg);font-family:var(--font-mono);font-size:1.2rem;padding:14px 10px;text-align:center;transition:all .4s var(--spring)}
.number-inputs input:focus{outline:none;border-color:var(--accent-dim);box-shadow:0 0 0 3px var(--accent-wash),0 0 24px var(--accent-glow)}
.number-inputs input::placeholder{color:var(--fg-faint);opacity:.2;font-size:.85rem}
.number-inputs .sep{color:var(--fg-faint);font-size:1.1rem;font-weight:300}
.number-hint{font-size:11px;color:var(--fg-faint);margin-top:6px}
.time-display-area{display:none;margin-bottom:var(--gap-md);padding:20px 22px;background:rgba(0,0,0,.2);border:1px solid var(--border);border-radius:var(--radius-sm);text-align:center}
.time-display-area.visible{display:block}
.time-display-area .time-big{font-family:var(--font-mono);font-size:1.3rem;color:var(--accent-bright);font-weight:600;letter-spacing:.04em;margin-bottom:4px}
.time-display-area .lunar-info{font-size:13px;color:var(--fg-dim)}
.time-display-area .lunar-info span{color:var(--fg);font-weight:500}
.quick-prompts{margin-top:14px;display:flex;gap:6px;flex-wrap:wrap}
.quick-prompt{padding:6px 14px;border-radius:var(--radius-full);font-size:12px;background:rgba(255,255,255,.02);border:1px solid var(--border);color:var(--fg-dim);cursor:pointer;transition:all .35s var(--spring);white-space:nowrap;font-weight:400}
.quick-prompt:hover{border-color:var(--accent-border);color:var(--accent-bright);background:var(--accent-wash);transform:translateY(-1px)}

/* ─── LOADING ───────────────────────────────────────────────── */
.loading-overlay{display:none;position:fixed;inset:0;z-index:200;background:radial-gradient(ellipse at center,rgba(14,14,26,.88) 0%,rgba(4,4,12,.96) 100%);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);flex-direction:column;align-items:center;justify-content:center;gap:36px}
.loading-overlay.active{display:flex}
.loading-spinner{width:64px;height:64px;border-radius:50%;border:2px solid var(--accent-border);border-top-color:var(--accent-bright);animation:spin .8s linear infinite;box-shadow:0 0 28px var(--accent-glow)}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-phrase{font-family:var(--font-display);font-size:1rem;color:var(--fg-dim);letter-spacing:.1em;transition:all .4s var(--spring)}
.loading-phrase.active{color:var(--accent-bright)}
.loading-hex-carousel{font-family:var(--font-display);font-size:1.6rem;font-weight:700;color:var(--accent-bright);min-height:1.8em;letter-spacing:.06em;opacity:.5;animation:hex-flicker .25s ease-in-out}
@keyframes hex-flicker{0%{opacity:.2;transform:translateY(2px)}100%{opacity:.7;transform:translateY(0)}}
.loading-track{width:180px;height:1px;background:var(--border);border-radius:1px;overflow:hidden}
.loading-track-bar{height:100%;background:var(--accent);border-radius:1px;transition:width .5s var(--spring);box-shadow:0 0 10px var(--accent-glow)}

/* ─── SHARE MODAL ───────────────────────────────────────────── */
.share-modal{display:none;position:fixed;inset:0;z-index:300;background:rgba(4,4,12,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);flex-direction:column;align-items:center;justify-content:center;gap:22px}
.share-modal.active{display:flex}
.share-card-preview{background:var(--surface-hi);border:1px solid var(--border-strong);border-radius:var(--radius-lg);padding:36px 28px;text-align:center;max-width:300px;width:90%;box-shadow:var(--shadow-raise)}
.share-card-preview .share-hex{font-family:var(--font-display);font-size:1.1rem;color:var(--accent-bright);margin-bottom:6px}
.share-card-preview .share-verdict{font-family:var(--font-display);font-size:1.5rem;font-weight:900;color:var(--fg);margin-bottom:18px}
.share-card-preview .share-brand{font-size:11px;color:var(--fg-faint);display:flex;align-items:center;justify-content:center;gap:4px;margin-top:16px}
.btn-close-share{padding:10px 30px;border-radius:var(--radius-full);font-size:14px;background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--fg);transition:all .4s var(--spring)}
.btn-close-share:hover{background:rgba(255,255,255,.1)}

/* ─── TOAST ─────────────────────────────────────────────────── */
.toast{position:fixed;bottom:32px;left:50%;transform:translateX(-50%) translateY(16px);z-index:400;padding:10px 24px;border-radius:var(--radius-full);background:var(--surface-hi);border:1px solid var(--border-strong);color:var(--fg);font-size:13px;font-family:var(--font-mono);opacity:0;transition:all .45s var(--spring);pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ─── SCROLL ENTRANCE ───────────────────────────────────────── */
.enter-up{opacity:0;transform:translateY(20px);transition:opacity .7s var(--spring-out),transform .7s var(--spring-out)}
.enter-up.entered{opacity:1;transform:translateY(0)}

/* ─── RESPONSIVE ────────────────────────────────────────────── */
@media(max-width:600px){
  :root{--fs-h1:clamp(32px,10vw,48px);--container:100%;--gutter:18px;--radius-lg:24px}
  .topnav{gap:4px}
  .topnav-link{padding:5px 10px;font-size:11px}
  .hex-flow{gap:4px}
  .hex-block{min-width:56px}
  .hex-yao-svg .yao-bar{width:52px}
  .hex-yao-svg .yao-bar.yin .half{width:21px}
  .number-inputs{gap:4px}
  .number-inputs input{font-size:1rem;padding:12px 6px}
  .verdict-icon-circle{width:56px;height:56px;font-size:1.5rem}
  .btn-ghost{min-width:0;flex:1}
}