@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#08080f;
  --surface:#0f0f1a;
  --surface2:#141422;
  --surface3:#1a1a2e;
  --border:#222235;
  --accent:#e53935;
  --accent2:#ef5350;
  --accent-glow:rgba(229,57,53,0.1);
  --green:#22c55e;
  --green-bg:rgba(34,197,94,0.08);
  --amber:#f59e0b;
  --amber-bg:rgba(245,158,11,0.08);
  --blue:#3b82f6;
  --blue-bg:rgba(59,130,246,0.08);
  --purple:#a855f7;
  --purple-bg:rgba(168,85,247,0.08);
  --grey:#444466;
  --text:#eeeeff;
  --text2:#8888aa;
  --text3:#444466;
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 4px 32px rgba(0,0,0,0.6);
}

body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6}

.hero{text-align:center;padding:44px 24px 28px;max-width:680px;margin:0 auto}
.hero-icon{font-size:48px;margin-bottom:12px}
.hero h1{font-size:clamp(22px,4vw,36px);font-weight:800;line-height:1.2;margin-bottom:10px}
.hero h1 span{color:var(--accent2)}
.hero-sub{color:var(--text2);font-size:15px;max-width:520px;margin:0 auto 8px}
.hero-tagline{font-size:13px;color:var(--text3);font-style:italic}

.limit-bar{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:14px}
.limit-dots{display:flex;gap:5px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--accent);transition:all 0.3s}
.dot.used{background:var(--surface3);border:1px solid var(--border)}
.limit-text{font-size:12px;color:var(--text2)}

.container{max-width:860px;margin:0 auto;padding:0 20px 80px}

.limit-warning{display:none;background:var(--accent-glow);border:1px solid rgba(229,57,53,0.3);border-radius:var(--radius);padding:20px;text-align:center;margin-bottom:20px}
.limit-warning h3{color:var(--accent2);margin-bottom:6px}
.limit-warning p{color:var(--text2);font-size:14px}
.timer-display{font-size:26px;font-weight:800;color:var(--accent2);font-family:monospace;margin:10px 0}

/* FORM */
.form-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:14px;box-shadow:var(--shadow)}
.form-label{font-size:12px;font-weight:700;color:var(--text2);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.step-num{width:22px;height:22px;background:var(--accent-glow);border:1px solid var(--accent);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:var(--accent2);flex-shrink:0}
.req{font-size:10px;background:var(--accent-glow);color:var(--accent2);border:1px solid rgba(229,57,53,0.3);padding:2px 6px;border-radius:4px;font-weight:700}
.opt{font-size:10px;background:var(--surface2);color:var(--text3);border:1px solid var(--border);padding:2px 6px;border-radius:4px;font-weight:700}

.text-input{width:100%;background:var(--surface2);border:1px solid var(--border);color:var(--text);padding:11px 14px;border-radius:var(--radius-sm);font-size:14px;font-family:'Inter',sans-serif;outline:none;transition:border-color 0.2s}
.text-input:focus{border-color:var(--accent)}
.text-input::placeholder{color:var(--text3)}
.num-input{width:100%;background:var(--surface2);border:1px solid var(--border);color:var(--text);padding:11px 14px;border-radius:var(--radius-sm);font-size:15px;font-weight:700;font-family:'Inter',sans-serif;outline:none;transition:border-color 0.2s}
.num-input:focus{border-color:var(--accent)}
.num-input::placeholder{color:var(--text3);font-weight:400}
.num-hint{font-size:11px;color:var(--text3);margin-top:4px}

.input-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.input-grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.input-wrap{display:flex;flex-direction:column;gap:5px}
.input-label{font-size:12px;font-weight:600;color:var(--text2)}

/* STUDIO GUIDE */
.studio-guide{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px;margin-bottom:14px}
.studio-guide-title{font-size:12px;font-weight:700;color:var(--text2);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.studio-step{font-size:12px;color:var(--text3);padding:3px 0;display:flex;gap:8px}
.studio-step span{color:var(--accent2);font-weight:700;flex-shrink:0}

/* LAST 5 */
.last5-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:8px}
.last5-input{background:var(--surface2);border:1px solid var(--border);color:var(--text);padding:8px 10px;border-radius:var(--radius-sm);font-size:13px;font-family:'Inter',sans-serif;outline:none;width:100%}
.last5-input:focus{border-color:var(--accent)}
.last5-input::placeholder{color:var(--text3)}

/* GENERATE BTN */
.generate-btn{width:100%;padding:16px;background:linear-gradient(135deg,#c62828,#e53935);color:#fff;border:none;border-radius:var(--radius);font-size:16px;font-weight:700;cursor:pointer;transition:all 0.3s;margin-bottom:32px;font-family:'Inter',sans-serif}
.generate-btn:hover{opacity:0.9;transform:translateY(-2px);box-shadow:0 10px 30px rgba(229,57,53,0.4)}
.generate-btn:disabled{opacity:0.5;cursor:not-allowed;transform:none;box-shadow:none}

/* LOADING */
.loading{display:none;text-align:center;padding:52px 24px}
.loading-icon{font-size:48px;animation:spin 2s linear infinite;margin-bottom:16px;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.loading h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:8px}
.loading p{color:var(--text2);font-size:14px}

/* RESULT */
.result-section{display:none}
.new-btn{background:var(--surface2);border:1px solid var(--border);color:var(--text);padding:10px 20px;border-radius:var(--radius-sm);cursor:pointer;font-size:14px;font-weight:600;transition:all 0.2s;margin-bottom:20px;font-family:'Inter',sans-serif}
.new-btn:hover{border-color:var(--accent);color:var(--accent2)}

/* VERDICT */
.verdict-card{border-radius:var(--radius);padding:24px;margin-bottom:16px;border:2px solid}
.verdict-distribution{background:rgba(168,85,247,0.06);border-color:rgba(168,85,247,0.4)}
.verdict-packaging{background:rgba(229,57,53,0.06);border-color:rgba(229,57,53,0.4)}
.verdict-retention{background:rgba(245,158,11,0.06);border-color:rgba(245,158,11,0.4)}
.verdict-satisfaction{background:rgba(59,130,246,0.06);border-color:rgba(59,130,246,0.4)}
.verdict-inconclusive{background:var(--surface2);border-color:var(--border)}
.verdict-layer{font-size:11px;font-weight:800;letter-spacing:1px;text-transform:uppercase;margin-bottom:8px}
.layer-distribution{color:var(--purple)}
.layer-packaging{color:var(--accent2)}
.layer-retention{color:var(--amber)}
.layer-satisfaction{color:var(--blue)}
.layer-inconclusive{color:var(--text2)}
.verdict-headline{font-size:17px;font-weight:800;color:var(--text);margin-bottom:10px;line-height:1.4}
.verdict-text{font-size:14px;color:var(--text2);line-height:1.7}
.confidence-badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;padding:4px 12px;border-radius:20px;margin-top:10px}
.conf-high{background:var(--green-bg);color:var(--green);border:1px solid rgba(34,197,94,0.3)}
.conf-medium{background:var(--amber-bg);color:var(--amber);border:1px solid rgba(245,158,11,0.3)}
.conf-low{background:var(--surface2);color:var(--text2);border:1px solid var(--border)}

/* FUNNEL */
.funnel-strip{display:flex;gap:0;margin-bottom:16px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}
.funnel-stage{flex:1;padding:16px 12px;text-align:center;background:var(--surface);border-right:1px solid var(--border);transition:all 0.3s}
.funnel-stage:last-child{border-right:none}
.funnel-stage.broken{background:rgba(229,57,53,0.1);border-color:rgba(229,57,53,0.3)}
.funnel-stage.broken .funnel-value{color:var(--accent2)}
.funnel-label{font-size:10px;font-weight:700;color:var(--text3);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:6px}
.funnel-value{font-size:18px;font-weight:800;color:var(--text);margin-bottom:2px}
.funnel-sub{font-size:10px;color:var(--text3)}
.funnel-arrow{display:flex;align-items:center;justify-content:center;color:var(--text3);font-size:16px;padding:0 4px;flex-shrink:0}

/* RESULT CARDS */
.result-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:14px}
.card-header{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.card-icon{width:34px;height:34px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;flex-shrink:0}
.icon-red{background:var(--accent-glow);color:var(--accent2);border:1px solid rgba(229,57,53,0.3)}
.icon-green{background:var(--green-bg);color:var(--green);border:1px solid rgba(34,197,94,0.3)}
.icon-amber{background:var(--amber-bg);color:var(--amber);border:1px solid rgba(245,158,11,0.3)}
.icon-blue{background:var(--blue-bg);color:var(--blue);border:1px solid rgba(59,130,246,0.3)}
.icon-grey{background:var(--surface2);color:var(--text2);border:1px solid var(--border)}
.card-title{font-size:14px;font-weight:700;color:var(--text)}
.card-sub{font-size:12px;color:var(--text2)}

/* COMPARISON */
.compare-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}
.compare-row:last-child{border:none}
.compare-label{color:var(--text2)}
.compare-vals{display:flex;gap:16px;align-items:center}
.compare-this{font-weight:700}
.compare-usual{font-size:12px;color:var(--text3)}
.compare-badge{font-size:10px;font-weight:700;padding:2px 8px;border-radius:10px}
.badge-worse{background:var(--accent-glow);color:var(--accent2);border:1px solid rgba(229,57,53,0.3)}
.badge-ok{background:var(--green-bg);color:var(--green);border:1px solid rgba(34,197,94,0.3)}
.badge-similar{background:var(--surface2);color:var(--text2);border:1px solid var(--border)}

/* EXPERIMENT */
.experiment-box{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;margin-bottom:12px}
.exp-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:0.5px;margin-bottom:8px}
.exp-change{font-size:14px;font-weight:700;color:var(--text);margin-bottom:6px}
.exp-pass{font-size:13px;color:var(--green);margin-bottom:4px}
.exp-window{font-size:12px;color:var(--text3)}

.dont-fix{background:var(--surface2);border:1px solid var(--amber);border-radius:var(--radius-sm);padding:14px;margin-bottom:8px}
.dont-fix-label{font-size:11px;font-weight:700;color:var(--amber);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:6px}
.dont-fix-text{font-size:13px;color:var(--text2);line-height:1.5}

/* TOOL LINK */
.tool-link-card{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 16px;display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:8px;flex-wrap:wrap}
.tool-link-info h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:3px}
.tool-link-info p{font-size:12px;color:var(--text2)}
.tool-link-btn{background:linear-gradient(135deg,#c62828,#e53935);color:#fff;padding:8px 16px;border-radius:var(--radius-sm);text-decoration:none;font-size:13px;font-weight:700;white-space:nowrap;transition:opacity 0.2s}
.tool-link-btn:hover{opacity:0.85}

/* TOAST */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--surface2);border:1px solid var(--accent);color:var(--text);padding:10px 20px;border-radius:var(--radius);font-size:14px;opacity:0;transition:opacity 0.2s;pointer-events:none;z-index:999}
.toast.show{opacity:1}

.footer{text-align:center;padding:24px;border-top:1px solid var(--border);color:var(--text3);font-size:12px;margin-top:40px}
.footer a{color:var(--accent2);text-decoration:none}

@media(max-width:600px){
  .input-grid,.input-grid-3{grid-template-columns:1fr}
  .funnel-strip{flex-direction:column}
  .funnel-arrow{display:none}
  .last5-row{grid-template-columns:1fr}
}