/* ==========================================================================
   Kevin Pai — Strata & Development Partner
   Shared stylesheet for index.html and contact.html
   ========================================================================== */

:root{
  --charcoal:#0F1312;--royal:#0F3D2A;--royal-deep:#0A2C1E;--brass:#C9A66B;--brass-deep:#A98748;
  --grey:#E6E3DF;--white:#F7F6F4;--body-c:#3B403E;
  --line:rgba(15,19,18,0.13);
  --display:'Playfair Display',Georgia,serif;--body:'Inter',system-ui,sans-serif;
  --han-d:'Noto Serif TC',serif;--han-b:'Noto Sans TC',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--white);color:var(--charcoal);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.zh{font-family:var(--han-b)}
body.zh .disp{font-family:var(--han-d)}
.zh-only{display:none}
body.zh .en-only{display:none}
body.zh .zh-only{display:inline}
body.zh .zh-only.blk{display:block}

.wrap{max-width:1200px;margin:0 auto;padding:0 52px}
.disp{font-family:var(--display);font-weight:400}
.kicker{font-family:var(--body);font-size:.7rem;font-weight:500;letter-spacing:.22em;text-transform:uppercase;color:var(--brass-deep)}
body.zh .kicker{letter-spacing:.12em}

.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:0;z-index:100;background:var(--charcoal);color:var(--white);padding:.8em 1.4em;font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;text-decoration:none}
.skip-link:focus{left:0}

/* --------------------------------------------------------------------------
   KP monogram
   One <symbol>, three sizes. Stroke weight scales inversely with display size:
   the master mark is a 2.25-unit hairline, which reads correctly at hero size
   but disappears below ~1px in the nav and footer.
   -------------------------------------------------------------------------- */
.kp-mark{display:block;height:auto;fill:none;stroke:var(--brass);
  stroke-width:var(--kp-stroke,2.4);stroke-linecap:square;stroke-linejoin:miter}

/* NAV */
nav{position:sticky;top:0;z-index:50;background:rgba(247,246,244,.92);backdrop-filter:blur(9px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:74px}
.mark{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--charcoal)}
.mark .kp-mark{width:26px;--kp-stroke:5.5;stroke:var(--brass-deep)}
.mark .nm{font-family:var(--display);font-size:1.02rem;letter-spacing:.15em;white-space:nowrap}
.mark .han{font-family:var(--han-d);font-size:.98rem;color:var(--body-c);letter-spacing:.05em}
.nav-r{display:flex;align-items:center;gap:30px}
.nav-x{display:flex;gap:28px}
.nav-x a{font-family:var(--body);font-size:.72rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--body-c);text-decoration:none}
.nav-x a:hover{color:var(--brass-deep)}
.lang{font-family:var(--body);font-size:.72rem;font-weight:600;letter-spacing:.12em;background:none;border:1px solid var(--line);padding:.55em .8em;cursor:pointer;color:var(--charcoal)}
.lang:hover{border-color:var(--brass);color:var(--brass-deep)}

/* Mobile nav toggle — replaces the links that used to simply vanish <860px */
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:38px;height:38px;background:none;border:1px solid var(--line);cursor:pointer;padding:0 9px}
.nav-toggle span{display:block;height:1.5px;width:100%;background:var(--charcoal);transition:transform .25s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

@media(max-width:860px){
  .mark .han{display:none}
  .nav-toggle{display:flex}
  .nav-x{position:absolute;top:74px;left:0;right:0;flex-direction:column;gap:0;
    background:var(--white);border-bottom:1px solid var(--line);
    padding:0 52px;max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease}
  .nav-x[data-open="true"]{max-height:60vh;padding:8px 52px 20px}
  .nav-x a{padding:16px 0;border-bottom:1px solid var(--line);font-size:.8rem}
  .nav-x a:last-child{border-bottom:none}
  .nav-r{gap:14px}
}
@media(max-width:520px){.nav-x,.nav-x[data-open="true"]{padding-left:28px;padding-right:28px}}

/* HERO */
.masthead{padding:92px 0 0}
.mast-grid{display:grid;grid-template-columns:1.5fr .82fr;gap:64px;align-items:end}
.mast-left .kicker{display:block;margin-bottom:30px}
.statement{font-family:var(--display);font-weight:400;font-size:clamp(2.3rem,4.7vw,3.7rem);line-height:1.12;letter-spacing:-.005em;margin-bottom:32px;max-width:15em}
body.zh .statement{font-weight:500;line-height:1.3;letter-spacing:.01em}
.statement em{font-style:italic;color:var(--brass-deep)}
body.zh .statement em{font-style:normal;color:var(--brass-deep)}
.standfirst{font-size:1.12rem;color:var(--body-c);max-width:33em;line-height:1.72;margin-bottom:36px}
.go{font-family:var(--body);font-size:.78rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--charcoal);text-decoration:none;display:inline-flex;align-items:center;gap:.7em;border-bottom:2px solid var(--brass);padding-bottom:6px;transition:gap .2s}
.go:hover{gap:1.05em;color:var(--brass-deep)}
.go .a{transition:transform .2s}.go:hover .a{transform:translateX(3px)}

.mast-right{padding-bottom:6px}
.brandplate{display:flex;flex-direction:column;align-items:center;text-align:center;padding-bottom:30px;margin-bottom:6px;border-bottom:1px solid var(--line)}
.brandplate .kp-mark{width:78px;--kp-stroke:2.4;margin-bottom:18px}
.pl-name{font-family:var(--display);font-weight:500;font-size:1.5rem;letter-spacing:.16em;padding-left:.16em;margin-bottom:12px}
.pl-rule{width:96px;height:1px;background:var(--brass);border:none;margin-bottom:12px}
.pl-tag{font-family:var(--body);font-size:.6rem;font-weight:500;letter-spacing:.24em;text-transform:uppercase;color:var(--brass-deep);padding-left:.24em;line-height:1.5}
body.zh .pl-tag{letter-spacing:.12em}
.glance{padding-top:4px}
.glance div{padding:12px 0;border-bottom:1px solid var(--line);font-size:.94rem;line-height:1.4}
.glance .gk{font-family:var(--body);font-size:.62rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--brass-deep);display:block;margin-bottom:3px}
@media(max-width:880px){.mast-grid{grid-template-columns:1fr;gap:48px;align-items:start}.mast-right{max-width:340px}}

section{padding:104px 0}

/* PRACTICE */
.practice .kicker{display:block;margin-bottom:14px}
.practice h2{font-family:var(--display);font-weight:400;font-size:clamp(1.8rem,3.3vw,2.5rem);letter-spacing:.005em;max-width:12em}
.idx{margin-top:56px}
.row{display:grid;grid-template-columns:64px 1fr 1.55fr;gap:36px;padding:30px 0;border-top:1px solid var(--line);align-items:baseline}
.idx .row:last-child{border-bottom:1px solid var(--line)}
.row .n{font-family:var(--display);font-size:1.35rem;color:var(--brass-deep);line-height:1}
.row h3{font-family:var(--display);font-weight:500;font-size:1.32rem;letter-spacing:.005em;line-height:1.25}
body.zh .row h3{font-weight:600}
.row p{color:var(--body-c);font-size:1.01rem;line-height:1.6}
@media(max-width:780px){.row{grid-template-columns:40px 1fr;gap:14px 18px}.row p{grid-column:1 / -1;padding-left:58px;margin-top:-8px}}

/* PULL-QUOTE band */
.quote{background:var(--royal);color:var(--white)}
.quote .wrap{max-width:1040px}
.quote .kicker{color:var(--brass);display:block;margin-bottom:22px}
.quote blockquote{font-family:var(--display);font-weight:400;font-size:clamp(1.7rem,3.3vw,2.5rem);line-height:1.32;max-width:25em;letter-spacing:.005em}
body.zh .quote blockquote{font-weight:500;line-height:1.5}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:64px;align-items:start}
.portrait{aspect-ratio:4/5;background:linear-gradient(160deg,#DEDBD3,var(--grey));border:1px solid var(--line);position:relative;box-shadow:14px 14px 0 -1px rgba(201,166,107,.28);overflow:hidden}
.portrait img{width:100%;height:100%;object-fit:cover;object-position:center 16%;display:block}
.about .kicker{display:block;margin-bottom:18px}
.about h2{font-family:var(--display);font-weight:400;font-size:clamp(1.9rem,3.3vw,2.5rem);margin-bottom:24px}
.about p{color:var(--body-c);margin-bottom:17px;max-width:34em}
.about p:first-of-type{color:var(--charcoal);font-size:1.1rem}
.about a{color:var(--royal);text-decoration-color:rgba(15,61,42,.35);text-underline-offset:3px}
.about a:hover{color:var(--brass-deep);text-decoration-color:var(--brass-deep)}
.particulars{margin-top:34px;border-top:1px solid var(--charcoal)}
.particulars .r{display:flex;gap:18px;padding:14px 0;border-bottom:1px solid var(--line)}
.particulars .k{font-family:var(--body);font-size:.62rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--brass-deep);width:104px;flex-shrink:0;padding-top:3px}
.particulars .v{font-size:.98rem;line-height:1.4}
.engagements{margin-top:42px}
.engagements-title{font-family:var(--display);font-size:1.35rem;font-weight:500;margin-bottom:10px}
.engagements-intro{font-size:.96rem!important;color:var(--body-c)!important;max-width:42em!important;margin-bottom:24px!important}
.engagement-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;border-top:1px solid var(--charcoal);padding-top:24px}
.engagement-group h3{font-family:var(--body);font-size:.64rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--brass-deep);margin-bottom:12px}
.engagement-group ul{list-style:none;margin:0;padding:0}
.engagement-group li{font-size:.9rem;line-height:1.5;color:var(--body-c);padding:9px 0;border-bottom:1px solid var(--line)}
.engagement-group li:first-child{padding-top:0}
@media(max-width:900px){.engagement-grid{grid-template-columns:1fr 1fr}.engagement-group:last-child{grid-column:1 / -1}}
@media(max-width:820px){.about-grid{grid-template-columns:1fr;gap:44px}.portrait{max-width:320px}}
@media(max-width:620px){.engagement-grid{grid-template-columns:1fr}.engagement-group:last-child{grid-column:auto}}

/* INSTRUCT / CONTACT band */
.instruct{background:var(--royal);color:var(--white)}
.instruct-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:start}
.instruct .kicker{color:var(--brass);display:block;margin-bottom:20px}
.instruct h2{font-family:var(--display);font-weight:400;font-size:clamp(2rem,3.6vw,2.9rem);color:var(--white);line-height:1.16;margin-bottom:24px;max-width:12em}
body.zh .instruct h2{font-weight:500;line-height:1.32}
.instruct .standfirst{color:rgba(247,246,244,.78)}
.btn-solid{font-family:var(--body);font-size:.78rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;background:var(--brass);color:var(--charcoal);padding:1.05em 2em;text-decoration:none;display:inline-flex;align-items:center;gap:.7em;border:none;cursor:pointer;transition:background .25s}
.btn-solid:hover{background:var(--brass-deep)}
.btn-solid .a{transition:transform .2s}.btn-solid:hover .a{transform:translateX(3px)}

/* Letterhead — the contact block the original stylesheet defined but never used */
.letterhead{font-family:var(--body);font-size:.86rem;letter-spacing:.04em;line-height:2;color:rgba(247,246,244,.72)}
.letterhead .lk{font-size:.62rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--brass);display:block;margin-bottom:8px}
.letterhead a{color:var(--brass);text-decoration:none}
.letterhead a:hover{color:var(--white);text-decoration:underline;text-underline-offset:3px}
.letterhead .grp{padding:18px 0;border-top:1px solid rgba(247,246,244,.16)}
.letterhead .grp:first-child{padding-top:0;border-top:none}
@media(max-width:820px){.instruct-grid{grid-template-columns:1fr;gap:44px}}

/* CONTACT PAGE */
.contact-page{padding:76px 0 104px}
.contact-head{max-width:34em;margin-bottom:56px}
.contact-head .kicker{display:block;margin-bottom:16px}
.contact-head h1{font-family:var(--display);font-weight:400;font-size:clamp(2.1rem,4vw,3rem);line-height:1.14;margin-bottom:20px}
body.zh .contact-head h1{font-weight:500;line-height:1.3}
.contact-head p{color:var(--body-c);font-size:1.08rem;line-height:1.7}
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:72px;align-items:start}

.field{margin-bottom:24px}
.field label{display:block;font-family:var(--body);font-size:.62rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--brass-deep);margin-bottom:8px}
body.zh .field label{letter-spacing:.08em}
.field .req{color:var(--brass-deep)}
.field input,.field select,.field textarea{width:100%;font-family:var(--body);font-size:1rem;color:var(--charcoal);background:transparent;border:none;border-bottom:1px solid var(--line);padding:10px 0;transition:border-color .2s}
body.zh .field input,body.zh .field select,body.zh .field textarea{font-family:var(--han-b)}
.field textarea{resize:vertical;min-height:130px;line-height:1.6}
.field select{cursor:pointer;appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--brass-deep) 50%),linear-gradient(135deg,var(--brass-deep) 50%,transparent 50%);background-position:calc(100% - 13px) 19px,calc(100% - 8px) 19px;background-size:5px 5px;background-repeat:no-repeat;padding-right:28px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-bottom-color:var(--brass)}
.field input::placeholder,.field textarea::placeholder{color:rgba(59,64,62,.4)}
.field .hint{display:block;margin-top:7px;font-size:.78rem;color:var(--body-c);line-height:1.5}
.form-note{margin:28px 0;font-size:.82rem;color:var(--body-c);line-height:1.6;max-width:34em}
.contact-aside .letterhead{color:var(--body-c)}
.contact-aside .letterhead .lk{color:var(--brass-deep)}
.contact-aside .letterhead a{color:var(--royal)}
.contact-aside .letterhead a:hover{color:var(--brass-deep)}
.contact-aside .letterhead .grp{border-top-color:var(--line)}
.contact-aside .plate{border-top:1px solid var(--charcoal);padding-top:26px}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr;gap:56px}}

/* FOOTER */
footer{background:var(--royal-deep);color:rgba(247,246,244,.6);padding:40px 0 44px;border-top:1px solid rgba(247,246,244,.12)}
.f-in{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.f-in .kp-mark{width:30px;--kp-stroke:5}
.f-vals{display:flex;gap:26px;flex-wrap:wrap;align-items:center}
.f-vals span,.f-vals a{font-family:var(--body);font-size:.66rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:rgba(247,246,244,.66)}
.f-vals a{text-decoration:none}
.f-vals a:hover{color:var(--brass)}
.colophon{margin-top:24px;padding-top:22px;border-top:1px solid rgba(247,246,244,.1);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-family:var(--body);font-size:.66rem;letter-spacing:.04em;line-height:1.9;color:rgba(247,246,244,.44)}

a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* Vertical rhythm on small screens — 104px top and bottom is a lot of dead
   space on a 375px-wide phone. */
@media(max-width:820px){section{padding:76px 0}.masthead{padding-top:64px}}
@media(max-width:520px){
  .wrap{padding:0 28px}
  section{padding:60px 0}
  .masthead{padding-top:48px}
  .contact-page{padding:52px 0 72px}
  .instruct-grid,.contact-grid{gap:40px}
}