/* ============================================================
   Premium Nattokinase NSK-SD — Presentation Deck Styles
   Deep Navy + Silver + Blood Red accent, Pretendard + Inter
   ============================================================ */

:root{
  --navy-950:#0a1224;
  --navy-900:#0e1b33;
  --navy-800:#122142;
  --silver:#c7ccd6;
  --silver-dim:#8b93a5;
  --red:#ff4d5e;
  --red-deep:#c8102e;
  --teal:#2fb6c4;
  --white:#f5f7fb;
}

*{box-sizing:border-box;}

html, body{
  margin:0;
  background:var(--navy-950);
  font-family:'Pretendard','Inter',sans-serif;
  color:var(--white);
}

/* ---------------- Toolbar ---------------- */
.deck-toolbar{
  position:fixed; top:0; left:0; right:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  padding:10px 22px;
  background:rgba(10,18,36,.92);
  border-bottom:1px solid rgba(255,255,255,.08);
  font-size:.82rem;
  backdrop-filter:blur(6px);
}
.deck-toolbar a, .deck-toolbar button{
  color:var(--silver);
  text-decoration:none;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:8px;
  padding:7px 14px;
  cursor:pointer;
  font-family:inherit;
  font-size:.82rem;
  display:inline-flex; align-items:center; gap:6px;
  transition:.2s;
}
.deck-toolbar a:hover, .deck-toolbar button:hover{
  background:var(--red); color:#fff; border-color:var(--red);
}
.deck-title{
  font-weight:600; color:var(--white); letter-spacing:.02em;
}
.reveal{ margin-top:0; }
.reveal .slides{ top:44px; }

/* ---------------- Base slide typography ---------------- */
.reveal .slides section{
  text-align:left;
  padding:70px 90px 40px;
  height:100%;
}
.reveal h1, .reveal h2, .reveal h3, .reveal h4{
  font-family:'Pretendard','Inter',sans-serif;
  margin:0 0 14px;
  text-transform:none;
  letter-spacing:-0.01em;
}
.reveal h2{ font-size:2.1rem; font-weight:800; color:var(--white); }
.reveal p{ font-size:1.05rem; line-height:1.65; color:var(--silver); margin:0 0 14px; }
.reveal .lead{ font-size:1.15rem; color:var(--silver); max-width:820px; }
.reveal ul, .reveal ol{ display:block; margin:0; }

.eyebrow{
  display:inline-block;
  font-size:.78rem; font-weight:700; letter-spacing:.14em;
  color:var(--red); text-transform:uppercase; margin-bottom:10px;
}

.hl{ color:var(--red); }

/* ---------------- Cover slide ---------------- */
.slide-cover{
  display:flex !important; flex-direction:column; align-items:flex-start;
  justify-content:center;
  background:radial-gradient(circle at 78% 25%, rgba(255,77,94,.18), transparent 55%),
             linear-gradient(160deg, var(--navy-950) 0%, var(--navy-900) 60%, var(--navy-800) 100%);
}
.cover-badge{
  display:inline-flex; align-items:center; gap:8px;
  background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.16);
  border-radius:999px; padding:8px 18px; font-size:.85rem; color:var(--silver);
  margin-bottom:26px;
}
.cover-badge i{ color:var(--red); }
.slide-cover h1{
  font-size:3.6rem; font-weight:800; line-height:1.15; color:var(--white); margin-bottom:20px;
}
.cover-sub{ font-size:1.25rem; color:var(--silver); max-width:640px; margin-bottom:40px; }
.cover-brand{ display:flex; align-items:center; gap:14px; }
.brand-mark{
  width:46px; height:46px; border-radius:12px;
  background:linear-gradient(135deg, var(--red), var(--red-deep));
  display:flex; align-items:center; justify-content:center;
  font-weight:800; font-size:1.3rem; color:#fff;
}
.cover-brand-text{ display:flex; flex-direction:column; }
.cover-brand-text b{ font-size:1.05rem; color:var(--white); }
.cover-brand-text span{ font-size:.82rem; color:var(--silver-dim); }
.cover-foot{
  position:absolute; bottom:34px; left:90px;
  font-size:.78rem; color:var(--silver-dim); letter-spacing:.08em;
}

/* ---------------- Agenda ---------------- */
.agenda-list{
  list-style:none; padding:0; margin-top:20px;
  display:grid; grid-template-columns:1fr 1fr; gap:14px 40px;
  max-width:900px;
}
.agenda-list li{
  display:flex; align-items:center; gap:14px;
  font-size:1.15rem; font-weight:600; color:var(--white);
  padding-bottom:10px; border-bottom:1px solid rgba(255,255,255,.1);
}
.agenda-list .ai{
  font-family:'Inter',sans-serif; font-weight:800; color:var(--red);
  font-size:1rem; min-width:34px;
}

/* ---------------- Two-column layout ---------------- */
.two-col{
  display:grid; grid-template-columns:1.1fr .9fr; gap:50px;
  margin-top:24px; align-items:start;
}
.check-list{ list-style:none; padding:0; margin:0; }
.check-list li{
  display:flex; align-items:flex-start; gap:10px;
  font-size:1.02rem; color:var(--white); margin-bottom:14px; line-height:1.5;
}
.check-list i{ color:var(--teal); margin-top:3px; }

.info-card{
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1);
  border-radius:16px; padding:26px 28px;
}
.info-row{ display:flex; align-items:flex-start; gap:12px; margin-bottom:16px; font-size:.98rem; color:var(--silver); }
.info-row:last-child{ margin-bottom:0; }
.info-row i{ color:var(--red); width:18px; margin-top:3px; }

/* ---------------- Stat band ---------------- */
.stat-band{
  display:grid; grid-template-columns:repeat(4,1fr); gap:16px;
  margin:26px 0 30px; max-width:920px;
}
.stat{
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1);
  border-radius:14px; padding:18px; text-align:center;
}
.stat b{ display:block; font-size:1.4rem; color:var(--white); margin-bottom:4px; }
.stat span{ font-size:.78rem; color:var(--silver-dim); }

/* ---------------- Approval box (compliance-critical) ---------------- */
.approval-box{
  border:1.5px solid rgba(47,182,196,.4);
  background:rgba(47,182,196,.06);
  border-radius:18px; padding:24px 28px; margin-top:8px;
}
.approval-head{
  font-weight:700; font-size:1rem; color:var(--teal); margin-bottom:16px;
  display:flex; align-items:center; gap:8px;
}
.approval-grid{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.approval-item{
  background:rgba(255,255,255,.04); border-radius:12px; padding:16px 18px;
  position:relative;
}
.ai-num{
  font-family:'Inter',sans-serif; font-weight:800; color:var(--red); font-size:.85rem;
}
.approval-item h4{ font-size:1.15rem; color:var(--white); margin:6px 0 6px; }
.approval-item p{ font-size:.92rem; margin:0; color:var(--silver); }
.approval-note{
  margin:16px 0 0; font-size:.82rem; color:#ffb3ba;
  display:flex; align-items:flex-start; gap:8px;
}
.approval-note i{ margin-top:2px; }

/* ---------------- Charts ---------------- */
.chart-grid{ display:grid; grid-template-columns:1fr 1fr; gap:26px; margin-top:20px; }
.chart-box{
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1);
  border-radius:16px; padding:20px 22px;
}
.chart-box h4{ font-size:.95rem; color:var(--white); margin-bottom:10px; }
.chart-wrap{ height:200px; position:relative; }
.chart-box .src{ display:block; margin-top:10px; font-size:.78rem; color:var(--silver-dim); }
.chart-note{ margin-top:16px; font-size:.78rem; color:var(--silver-dim); }

/* ---------------- Mechanism ---------------- */
.mech-grid{ display:grid; grid-template-columns:1fr 1fr; gap:26px; margin-top:20px; }
.mech-card{
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1);
  border-radius:18px; padding:26px;
}
.mech-icon{
  width:48px; height:48px; border-radius:12px;
  background:linear-gradient(135deg, var(--red), var(--red-deep));
  display:flex; align-items:center; justify-content:center; font-size:1.2rem; color:#fff;
  margin-bottom:14px;
}
.mech-card h3{ font-size:1.1rem; color:var(--white); margin-bottom:10px; }
.mech-card p{ font-size:.92rem; margin-bottom:12px; }
.mech-tag{
  display:inline-block; font-size:.75rem; font-weight:700; color:var(--teal);
  background:rgba(47,182,196,.12); border-radius:999px; padding:4px 12px;
}
.ras-note{
  margin-top:20px; padding:14px 18px; border-radius:12px;
  background:rgba(255,255,255,.04); font-size:.88rem; color:var(--silver);
  display:flex; align-items:center; gap:10px;
}
.ras-note i{ color:var(--red); }

/* ---------------- Flow mini ---------------- */
.flow-mini{
  display:flex; align-items:center; justify-content:center; gap:10px;
  flex-wrap:wrap; background:rgba(255,255,255,.04); border-radius:16px; padding:30px 20px;
}
.flow-step{
  display:flex; flex-direction:column; align-items:center; gap:8px;
  font-size:.85rem; color:var(--white); font-weight:600;
}
.flow-step span{
  width:36px; height:36px; border-radius:50%;
  background:linear-gradient(135deg, var(--red), var(--red-deep));
  display:flex; align-items:center; justify-content:center; font-size:.9rem; color:#fff;
}
.flow-mini i{ color:var(--silver-dim); }

/* ---------------- Certificate mini grid ---------------- */
.cert-mini-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-top:24px;
}
.cert-mini{
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1);
  border-radius:14px; padding:20px 16px; text-align:center;
}
.cert-mini i{ font-size:1.4rem; color:var(--red); margin-bottom:10px; display:block; }
.cert-mini b{ display:block; font-size:.9rem; color:var(--white); margin-bottom:4px; }
.cert-mini span{ font-size:.75rem; color:var(--silver-dim); }

/* ---------------- Products ---------------- */
.prod-card{
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1);
  border-radius:16px; padding:22px;
}
.prod-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:10px; }
.prod-top h3{ font-size:1.1rem; color:var(--white); margin:0; }
.prod-top span{ font-size:.78rem; color:var(--red); font-weight:700; }
.prod-card p{ font-size:.92rem; margin:0; }
.oem-band{
  margin-top:24px; display:flex; align-items:center; gap:18px;
  background:linear-gradient(120deg, rgba(255,77,94,.14), rgba(47,182,196,.1));
  border:1px solid rgba(255,255,255,.12); border-radius:16px; padding:20px 24px;
}
.oem-band i{ font-size:1.6rem; color:var(--red); }
.oem-band b{ display:block; font-size:1rem; color:var(--white); margin-bottom:4px; }
.oem-band span{ font-size:.85rem; color:var(--silver); }

/* ---------------- Closing slide ---------------- */
.slide-closing{
  display:flex !important; flex-direction:column; align-items:flex-start; justify-content:center;
  background:radial-gradient(circle at 20% 80%, rgba(255,77,94,.14), transparent 55%),
             linear-gradient(200deg, var(--navy-950) 0%, var(--navy-900) 100%);
}
.contact-grid{
  display:grid; grid-template-columns:repeat(2,1fr); gap:14px; margin-top:24px; max-width:640px;
}
.contact-item{
  display:flex; align-items:center; gap:10px;
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1);
  border-radius:12px; padding:14px 18px; font-size:.95rem; color:var(--white);
}
.contact-item i{ color:var(--red); width:18px; }
.legal-foot{
  margin-top:30px; font-size:.75rem; color:var(--silver-dim); max-width:700px;
}

/* ---------------- Reveal progress/controls tint ---------------- */
.reveal .progress{ color:var(--red); height:4px; }
.reveal .controls{ color:var(--silver); }

/* ---------------- Responsive tweaks ---------------- */
@media (max-width: 900px){
  .two-col, .chart-grid, .mech-grid{ grid-template-columns:1fr; }
  .stat-band, .approval-grid, .cert-mini-grid, .agenda-list, .contact-grid{ grid-template-columns:repeat(2,1fr); }
}

/* ---------------- Print (PDF export) ---------------- */
@media print{
  .no-print, .deck-toolbar{ display:none !important; }
  .reveal .slides{ top:0; }
}