/* =========================================================
   DailyBrandCare — "brush your brand daily"
   Toothpaste concept. Mobile-first. Forest green + cream.
   ========================================================= */

@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');
@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@400;500;600;700;800&display=swap');

:root{
  --cream:#F4EFE4;
  --cream-deep:#EBE3D2;
  --paper:#FBF8F1;
  --forest:#2E4A34;
  --forest-deep:#21381F;
  --olive:#7C9A57;
  --olive-soft:#A8BE8A;
  --mint:#D2E2C5;
  --mint-deep:#BAD3A8;
  --ink:#2A2922;
  --ink-soft:#6A6457;
  --ink-faint:#9A9384;
  --amber:#E3A857;
  --line:#DBD1C0;
  --line-soft:#E7DECE;

  --sans:'Pretendard','Hanken Grotesk',system-ui,sans-serif;
  --en:'Hanken Grotesk','Pretendard',sans-serif;

  --wrap:1080px;
  --read:620px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--sans);background:var(--cream);color:var(--ink);
  line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;word-break:keep-all;overflow-x:hidden;
}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
::selection{background:var(--olive);color:#fff}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:1rem;line-height:1;padding:15px 26px;border-radius:12px;
  transition:transform .18s ease,background .2s,box-shadow .2s;white-space:nowrap;
}
.btn--primary{background:var(--forest);color:#fff;box-shadow:0 10px 24px -12px rgba(46,74,52,.6)}
.btn--primary:hover{background:var(--forest-deep);transform:translateY(-2px)}
.btn--light{background:var(--paper);color:var(--forest);box-shadow:inset 0 0 0 1.5px var(--line)}
.btn--light:hover{box-shadow:inset 0 0 0 1.5px var(--olive);transform:translateY(-2px)}
.btn--block{width:100%}
.btn .arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(3px)}

/* ---------- top bar ---------- */
.topbar{position:sticky;top:0;z-index:60;background:rgba(244,239,228,.85);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;transition:border-color .3s}
.topbar.stuck{border-color:var(--line-soft)}
.topbar__in{max-width:var(--wrap);margin:0 auto;padding:0 22px;height:60px;
  display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:9px}
.logo img{width:30px;height:30px;object-fit:contain}
.logo span{font-family:var(--en);font-weight:700;font-size:1.02rem;letter-spacing:-.01em}
.logo b{color:var(--olive)}
.topnav{display:flex;align-items:center;gap:8px}
.topnav a.lnk{font-size:.94rem;color:var(--ink-soft);font-weight:500;padding:8px 10px;transition:color .2s}
.topnav a.lnk:hover{color:var(--ink)}
.topnav .btn{padding:10px 18px;font-size:.92rem}

/* ---------- hero (full-bleed video, overlaid masthead) ---------- */
.hero{position:relative;min-height:min(92vh,860px);display:flex;align-items:flex-end;background:#16241a}
.hero__visual{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero__track{position:absolute;inset:0}
.hero__slide{position:absolute;inset:0;opacity:0;transition:opacity .6s ease;overflow:hidden}
.hero__slide.is-active{opacity:1}
.hero__visual video{width:100%;height:100%;object-fit:cover;object-position:center 38%;display:block}
#heroVidA{transform:scale(1.14)}
#heroVidC{transform:scale(1.26)}
.hero__dots{display:none}
.hero__scrim{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg, rgba(12,20,13,.32) 0%, rgba(12,20,13,0) 28%, rgba(12,20,13,.16) 52%, rgba(11,18,12,.74) 82%, rgba(10,17,11,.95) 100%),
             linear-gradient(90deg, rgba(11,18,12,.46) 0%, rgba(11,18,12,0) 50%)}
.hero__dots{position:absolute;right:18px;bottom:18px;z-index:3;display:flex;gap:8px}
.hero__dot{width:9px;height:9px;border-radius:999px;background:rgba(255,255,255,.5);
  border:1px solid rgba(255,255,255,.55);cursor:pointer;transition:width .3s,background .3s;padding:0;
  box-shadow:0 1px 4px rgba(0,0,0,.25)}
.hero__dot.is-on{width:22px;background:#fff}
.hero__content{position:relative;z-index:2;width:100%;max-width:var(--wrap);margin:0 auto;
  padding:0 22px clamp(40px,6vw,76px)}
.hero__kick{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;font-weight:700;
  color:#fff;background:rgba(124,154,87,.92);padding:7px 14px;border-radius:999px;margin-bottom:18px}
.hero__kick .en{font-family:var(--en);letter-spacing:.01em}
.hero__name{font-size:clamp(2.2rem,5.4vw,4rem);font-weight:800;letter-spacing:-.04em;line-height:1.04;
  color:#fff;word-break:keep-all;max-width:18ch;
  text-shadow:0 2px 4px rgba(8,14,9,.5), 0 8px 30px rgba(8,14,9,.5)}
.hero__name .num{font-family:var(--en);color:var(--olive-soft);font-weight:800;margin-left:.1em}
.hero__tagline{margin-top:14px;font-size:clamp(1.1rem,2.3vw,1.6rem);font-weight:700;letter-spacing:-.02em;
  color:rgba(255,255,255,.96);line-height:1.3;text-shadow:0 2px 12px rgba(8,14,9,.55)}
.hero__tagline .hl{position:relative;white-space:nowrap}
.hero__tagline .hl::after{content:"";position:absolute;left:-1%;right:-1%;bottom:.04em;height:.22em;
  background:var(--olive);z-index:-1;border-radius:3px;opacity:.92}

/* subscribe over dark hero */
.hero .subscribe__cap{color:rgba(255,255,255,.92)}
.hero .subscribe__cap b{color:#fff}
.hero .subscribe__note{color:rgba(255,255,255,.7)}
.hero__cta-btn{margin-top:24px}

/* ---------- subscribe strip (below hero) ---------- */
.substrip{background:var(--paper);border-bottom:1px solid var(--line-soft)}
.substrip__in{display:flex;align-items:center;justify-content:space-between;gap:24px 40px;flex-wrap:wrap;
  padding:clamp(22px,3vw,34px) 0}
.substrip__t{display:flex;flex-direction:column;gap:5px}
.substrip__free{font-family:var(--en);font-size:.76rem;font-weight:700;letter-spacing:.05em;
  text-transform:uppercase;color:var(--forest)}
.substrip__t strong{font-size:clamp(1.15rem,2vw,1.4rem);font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.substrip .subscribe{margin:0;max-width:480px;flex:1 1 380px}

/* ---------- subscribe block ---------- */
.subscribe{margin-top:24px;max-width:480px}
.subscribe__cap{font-size:.92rem;color:var(--ink-soft);margin-bottom:11px}
.subscribe__cap b{color:var(--ink);font-weight:600}
.subscribe__cap .free{display:inline-block;font-family:var(--en);font-size:.7rem;font-weight:700;
  letter-spacing:.04em;background:var(--amber);color:#fff;padding:2px 8px;border-radius:999px;margin-right:7px;vertical-align:1px}
.subscribe__note{margin-top:10px;font-size:.82rem;color:var(--ink-faint)}

/* ---------- brush band (character, below hero) ---------- */
.brushband{background:var(--paper);overflow:hidden}
.brushband__in{display:grid;grid-template-columns:.92fr 1.08fr;align-items:center;gap:clamp(24px,4vw,56px);
  padding:clamp(40px,5.5vw,76px) 0}
.brushband__media{border-radius:22px;overflow:hidden;aspect-ratio:4/3;background:var(--cream-deep);
  box-shadow:0 28px 56px -30px rgba(40,58,40,.4)}
.brushband__media video{width:100%;height:100%;object-fit:cover}
.brushband__tag{display:inline-block;font-family:var(--en);font-size:.78rem;font-weight:700;letter-spacing:.05em;
  text-transform:uppercase;color:var(--olive);margin-bottom:14px}
.brushband h2{font-size:clamp(1.7rem,3.8vw,2.6rem);font-weight:800;letter-spacing:-.03em;line-height:1.16}
.brushband h2 em{font-style:normal;color:var(--olive)}
.brushband p{margin-top:16px;font-size:1.08rem;color:var(--ink-soft);line-height:1.75;max-width:42ch}
.brushband__stats{display:flex;gap:26px;margin-top:26px}
.brushband__stats .n{font-size:1.7rem;font-weight:800;color:var(--forest);letter-spacing:-.02em;line-height:1}
.brushband__stats .l{margin-top:6px;font-size:.86rem;color:var(--ink-soft)}

/* ---------- section frame ---------- */
.section{padding:clamp(50px,7vw,92px) 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.sec-head .l .ey{font-family:var(--en);font-size:.78rem;font-weight:700;letter-spacing:.05em;
  text-transform:uppercase;color:var(--olive)}
.sec-head .l h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:800;letter-spacing:-.02em;margin-top:8px}
.sec-head .l p{margin-top:8px;color:var(--ink-soft);font-size:1rem}

/* ---------- featured (latest letter) ---------- */
.featured{background:var(--paper);border-radius:24px;overflow:hidden;
  box-shadow:0 24px 56px -30px rgba(40,58,40,.32);border:1px solid var(--line-soft);
  display:grid;grid-template-columns:1.05fr 1fr}
.featured__media{position:relative;background:var(--cream-deep);min-height:320px}
.featured__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.featured__flag{position:absolute;top:16px;left:16px;display:inline-flex;align-items:center;gap:7px;
  background:var(--forest);color:#fff;font-size:.78rem;font-weight:700;padding:7px 13px;border-radius:999px;z-index:2}
.featured__flag .d{width:7px;height:7px;border-radius:50%;background:var(--olive-soft)}
.featured__body{padding:clamp(26px,3.4vw,40px);display:flex;flex-direction:column}
.featured__meta{display:flex;align-items:center;gap:10px;font-size:.84rem;color:var(--ink-faint);font-weight:500;flex-wrap:wrap;white-space:nowrap}
.featured__pill{display:inline-flex;align-items:center;gap:6px;color:var(--forest);font-weight:600}
.featured__pill .dot{width:8px;height:8px;border-radius:50%;background:var(--olive)}
.featured h3{font-size:clamp(1.35rem,2.4vw,1.85rem);font-weight:800;letter-spacing:-.02em;line-height:1.3;margin:14px 0 0}
.featured__excerpt{margin-top:14px;color:var(--ink-soft);font-size:1.02rem;line-height:1.75}
.featured__excerpt p{margin-top:12px}
.featured__excerpt p:first-child{margin-top:0}
.featured__fade{position:relative}
.featured__lock{margin-top:18px;padding-top:20px;border-top:1px dashed var(--line);
  display:flex;flex-direction:column;gap:12px}
.featured__lock .row{display:flex;align-items:center;gap:9px;color:var(--forest);font-weight:600;font-size:.96rem}
.featured__lock .row svg{width:18px;height:18px}

/* ---------- letters list (archive, locked) ---------- */
.letters{display:flex;flex-direction:column;gap:14px}
.letter{
  display:grid;grid-template-columns:96px 1fr auto;gap:18px;align-items:center;
  background:var(--paper);border:1px solid var(--line-soft);border-radius:18px;padding:14px;
  position:relative;transition:transform .2s ease,box-shadow .2s,border-color .2s;
}
.letter:hover{transform:translateY(-3px);box-shadow:0 18px 38px -24px rgba(40,58,40,.34);border-color:var(--olive-soft)}
.letter__thumb{width:96px;height:96px;border-radius:13px;overflow:hidden;background:var(--cream-deep);position:relative;flex:none}
.letter__thumb img{width:100%;height:100%;object-fit:cover}
.letter__thumb .no{position:absolute;left:7px;top:5px;font-family:var(--en);font-weight:700;font-size:.78rem;
  color:#fff;background:rgba(33,56,31,.62);padding:1px 7px;border-radius:999px;backdrop-filter:blur(2px)}
.letter__main{min-width:0}
.letter__pillar{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:600;color:var(--ink-soft)}
.letter__pillar .dot{width:7px;height:7px;border-radius:50%}
.p-copy .dot{background:var(--olive)}
.p-visual .dot{background:var(--amber)}
.p-law .dot{background:#9C8BA8}
.p-context .dot{background:var(--forest)}
.p-routine .dot{background:var(--mint-deep)}
.letter__title{font-size:1.08rem;font-weight:600;line-height:1.4;letter-spacing:-.01em;margin-top:5px;color:var(--ink)}
.letter:hover .letter__title{color:var(--forest)}
.letter__sum{margin-top:4px;font-size:.9rem;color:var(--ink-soft);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.letter__lock{flex:none;display:flex;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:50%;background:var(--cream);color:var(--ink-faint);transition:background .2s,color .2s}
.letter:hover .letter__lock{background:var(--forest);color:#fff}
.letter__lock svg{width:17px;height:17px}

.letters__cta{margin-top:26px;background:var(--mint);border-radius:20px;
  padding:clamp(24px,3vw,34px);display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.letters__cta .t h3{font-size:1.25rem;font-weight:800;letter-spacing:-.02em;color:var(--forest)}
.letters__cta .t p{margin-top:6px;color:var(--forest);opacity:.8;font-size:.96rem}

/* ---------- footer ---------- */
.foot{background:var(--cream-deep);border-top:1px solid var(--line-soft);padding:48px 0 40px;margin-top:20px}
.foot__in{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.foot__brand{display:flex;align-items:center;gap:9px}
.foot__brand img{width:28px;height:28px}
.foot__brand span{font-family:var(--en);font-weight:700;font-size:.98rem}
.foot__brand b{color:var(--olive)}
.foot__links{font-size:.9rem;color:var(--ink-soft);text-align:right;line-height:1.95}
.foot__links a:hover{color:var(--forest)}
.foot__note{margin-top:30px;padding-top:22px;border-top:1px solid var(--line);font-size:.86rem;color:var(--ink-faint);line-height:1.6}

/* ---------- lock modal ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal__bg{position:absolute;inset:0;background:rgba(33,56,31,.42);backdrop-filter:blur(4px)}
.modal__card{position:relative;background:var(--paper);border-radius:22px;max-width:420px;width:100%;
  padding:32px 28px;box-shadow:0 40px 90px -30px rgba(0,0,0,.5);text-align:center;
  animation:pop .3s cubic-bezier(.2,.8,.3,1)}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:none}}
.modal__card .emoji{width:64px;height:64px;margin:0 auto 14px;border-radius:50%;background:var(--mint);
  display:grid;place-items:center;color:var(--forest)}
.modal__card .emoji svg{width:30px;height:30px}
.modal__card h3{font-size:1.3rem;font-weight:800;letter-spacing:-.02em}
.modal__card p{margin-top:10px;color:var(--ink-soft);font-size:.98rem;line-height:1.6}
.modal__card .btn{margin-top:20px}
.modal__close{position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:50%;
  color:var(--ink-faint);display:grid;place-items:center}
.modal__close:hover{background:var(--cream);color:var(--ink)}

/* ---------- scroll-driven reveal (progressive enhancement) ---------- */
@supports (animation-timeline: view()){
  @media (prefers-reduced-motion: no-preference){
    .reveal{animation:revealIn linear both;animation-timeline:view();animation-range:entry 2% cover 22%}
    @keyframes revealIn{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
  }
}

/* ---------- about page ---------- */
.about{padding:clamp(34px,5vw,64px) 0 clamp(54px,8vw,90px)}
.about__back{display:inline-flex;align-items:center;gap:7px;color:var(--forest);font-weight:600;font-size:.94rem;margin-bottom:24px}
.about__back:hover{gap:11px}
.about__hero{border-radius:20px;overflow:hidden;margin-bottom:clamp(24px,3.5vw,40px);background:var(--cream-deep)}
.about__hero img{width:100%}
.about__ey{font-family:var(--en);font-size:.78rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--olive)}
.about h1{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:800;letter-spacing:-.03em;line-height:1.2;margin-top:10px}
.about .role{margin:10px 0 0;color:var(--forest);font-weight:600}
.about__body{max-width:var(--read);margin-top:24px}
.about__body p{font-size:1.05rem;color:var(--ink-soft);line-height:1.85;margin-top:18px}
.about__quote{margin:38px 0;font-size:clamp(1.3rem,2.8vw,1.7rem);font-weight:800;color:var(--ink);
  line-height:1.45;letter-spacing:-.02em;padding-left:20px;border-left:3px solid var(--olive)}

/* ---------- responsive ---------- */
@media(max-width:860px){
  .brushband__in{grid-template-columns:1fr;gap:22px}
  .brushband__media{order:-1;aspect-ratio:16/11}
  .featured{grid-template-columns:1fr}
  .featured__media{min-height:240px;aspect-ratio:16/10}
}
@media(max-width:560px){
  body{font-size:16px}
  .wrap,.topbar__in{padding-left:18px;padding-right:18px}
  .topnav a.lnk{display:none}
  .hero h1{font-size:clamp(1.9rem,8vw,2.5rem)}
  .hero h1 .hl{white-space:normal}
  .sec-head{flex-direction:column;align-items:flex-start;gap:6px}
  .letter{grid-template-columns:74px 1fr auto;gap:13px;padding:11px}
  .letter__thumb{width:74px;height:74px}
  .letter__sum{display:none}
  .letters__cta{flex-direction:column;align-items:flex-start}
  .letters__cta .btn{width:100%}
  .foot__in{flex-direction:column}
  .foot__links{text-align:left}
}