/* =========================================================
   Lin & Company  Common Stylesheet
   Brand Regulation:
   - Logo Font: Libre Baskerville (Regular)
   - Tagline Font: Raleway (Regular)
   - Body Font: Hind Madurai (Regular)
   - Primary: Deep Azure Blue #1B6FA3
   - Accent : Pale Gold      #C7B27A
   - Mono   : Charcoal Black #181818
   - BG     : Ivory White    #FAF8F2
   - Sub    : Mist Gray      #DDE3E5
   - Sub    : Frost Gray     #F2F5F5
   - Text   : Urban Smoke    #ACB0B1
   ========================================================= */

:root{
  --color-primary:  #1B6FA3;
  --color-primary-dark:#155A85;
  --color-primary-light:#E8F0F6;
  --color-accent:   #C7B27A;
  --color-ink:      #181818;
  --color-bg:       #FAF8F2;
  --color-bg-alt:   #F2F5F5;
  --color-line:     #DDE3E5;
  --color-muted:    #ACB0B1;
  --color-white:    #FFFFFF;

  --font-logo:    "Libre Baskerville", "Times New Roman", serif;
  --font-tag:     "Raleway", "Helvetica Neue", Arial, sans-serif;
  --font-body:    "Hind Madurai", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;

  --container: 1180px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
}

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

html,body{
  margin:0; padding:0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,svg{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }

/* ---------- Layout ---------- */
.container{
  width:100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-line);
}
.site-header__inner{
  display:flex; align-items:center; justify-content:space-between;
  height: 72px;
}
.site-logo{
  font-family: var(--font-logo);
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  display:flex; flex-direction: column; align-items:center;
  line-height: 1.1;
}
.site-logo small{
  display:block;
  font-family: var(--font-tag);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--color-muted);
  text-transform: uppercase;
  margin-top: 4px;
}

.global-nav{ display:flex; align-items:center; gap:34px; }
.global-nav a{
  font-family: var(--font-tag);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-ink);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}
.global-nav a:hover,
.global-nav a.is-current{
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}
.global-nav .nav-contact{
  background: var(--color-primary);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  letter-spacing: 0.1em;
}
.global-nav .nav-contact:hover{
  background: var(--color-primary-dark);
  border-bottom-color: transparent;
}

/* Hamburger */
.nav-toggle{
  display:none;
  width:44px; height:44px;
  border:none; background:transparent;
  position:relative;
}
.nav-toggle span{
  position:absolute; left:10px; right:10px; height:1.5px;
  background: var(--color-ink); transition:transform .25s, opacity .25s, top .25s;
}
.nav-toggle span:nth-child(1){ top:16px; }
.nav-toggle span:nth-child(2){ top:22px; }
.nav-toggle span:nth-child(3){ top:28px; }
.nav-toggle.is-open span:nth-child(1){ top:22px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ top:22px; transform: rotate(-45deg); }

/* ---------- Page Hero ---------- */
.page-hero{
  background: var(--color-primary);
  color:#fff;
  padding: 72px 0 64px;
  position: relative;
  overflow: hidden;
}
.page-hero::after{
  content:"";
  position:absolute; right:-80px; bottom:-80px;
  width: 280px; height: 280px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 28px;
  transform: rotate(12deg);
}
.page-hero::before{
  content:"";
  position:absolute; left:-60px; top:-60px;
  width: 200px; height: 200px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 50%;
}
.page-hero__inner{ position: relative; z-index:1; }
.page-hero__eyebrow{
  font-family: var(--font-tag);
  font-size: 12px;
  letter-spacing: 0.32em;
  color: rgba(255,255,255,0.7);
  margin: 0 0 16px;
  text-transform: uppercase;
}
.page-hero__title{
  font-family: var(--font-logo);
  font-weight: 400;
  font-size: 44px;
  line-height: 1.25;
  letter-spacing: 0.02em;
  margin: 0 0 14px;
}
.page-hero__sub{
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.85);
  margin: 0;
  max-width: none;
}

/* ---------- Section ---------- */
.section{ padding: 88px 0; }
.section--alt{ background: var(--color-bg-alt); }
.section__head{ margin-bottom: 48px; }
.section__eyebrow{
  font-family: var(--font-tag);
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin: 0 0 10px;
}
.section__title{
  font-family: var(--font-logo);
  font-weight: 400;
  font-size: 32px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--color-ink);
  margin: 0 0 12px;
}
.section__lead{
  font-size: 15px;
  color: #444;
  max-width: 720px;
  margin: 0;
}

/* ---------- Card ---------- */
.card{
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.card__icon{
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 18px;
}
.card__icon svg{ width:22px; height:22px; }
.card__title{
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: 0.04em;
}
.card__text{
  font-size: 14px;
  color: #555;
  margin: 0;
  line-height: 1.85;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--font-tag);
  font-size: 13px;
  letter-spacing: 0.14em;
  padding: 14px 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: background .2s, color .2s, border-color .2s;
}
.btn--primary{ background: var(--color-primary); color:#fff; }
.btn--primary:hover{ background: var(--color-primary-dark); }
.btn--ghost{
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}
.btn--ghost:hover{ background: rgba(255,255,255,0.12); }
.btn--outline{
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn--outline:hover{ background: var(--color-primary); color: #fff; }

/* ---------- Footer ---------- */
.site-footer{
  background: var(--color-ink);
  color: #fff;
  padding: 64px 0 32px;
}
.site-footer__grid{
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.site-footer__brand{
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.site-footer__logo{
  font-family: var(--font-logo);
  font-size: 28px;
  margin: 0 0 14px;
  color: #fff;
  text-align: center;
  display: inline-block;
  line-height: 1.1;
}
.site-footer__logo small{
  display:block;
  font-family: var(--font-tag);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--color-accent);
  margin-top: 8px;
  text-align: center;
}
.site-footer__desc{
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  max-width: 320px;
  line-height: 1.9;
  margin-top: 14px;
}
.site-footer h4{
  font-family: var(--font-tag);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--color-accent);
  margin: 0 0 18px;
  text-transform: uppercase;
  font-weight: 600;
}
.site-footer ul{ list-style:none; padding:0; margin:0; }
.site-footer ul li{ margin-bottom: 10px; }
.site-footer ul a{
  font-size: 13px;
  color: rgba(255,255,255,0.7);
}
.site-footer ul a:hover{ color: #fff; }
.site-footer__bottom{
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 24px;
  display:flex; justify-content:space-between; align-items:center;
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  font-family: var(--font-tag);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--color-muted);
  padding: 18px 0 0;
}
.breadcrumb a{ color: var(--color-muted); }
.breadcrumb a:hover{ color: var(--color-primary); }
.breadcrumb span{ margin: 0 10px; }

/* ---------- Utilities ---------- */
.text-center{ text-align:center; }
.mt-0{ margin-top:0; } .mt-8{ margin-top:8px; } .mt-16{ margin-top:16px; }
.mt-24{ margin-top:24px; } .mt-32{ margin-top:32px; } .mt-48{ margin-top:48px; }

.grid{ display:grid; gap: 24px; }
.grid--2{ grid-template-columns: repeat(2, 1fr); }
.grid--3{ grid-template-columns: repeat(3, 1fr); }
.grid--4{ grid-template-columns: repeat(4, 1fr); }

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .page-hero{ padding: 56px 0 48px; }
  .page-hero__title{ font-size: 32px; }
  .section{ padding: 64px 0; }
  .section__title{ font-size: 24px; }
  .grid--3, .grid--4{ grid-template-columns: repeat(2, 1fr); }
  .site-footer__grid{ grid-template-columns: 1fr 1fr; gap: 32px; }

  .nav-toggle{ display:block; }
  .global-nav{
    position: fixed;
    top: 72px; left:0; right:0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 24px 32px;
    border-top: 1px solid var(--color-line);
    transform: translateY(-120%);
    transition: transform .3s ease;
    box-shadow: 0 12px 24px rgba(0,0,0,0.06);
  }
  .global-nav.is-open{ transform: translateY(0); }
  .global-nav a{
    padding: 18px 4px;
    border-bottom: 1px solid var(--color-line);
    font-size: 14px;
  }
  .global-nav a:last-child{ border-bottom: none; }
  .global-nav .nav-contact{
    margin-top: 16px;
    text-align: center;
    border: none;
    border-radius: 999px;
  }
  .site-footer__bottom{
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 600px){
  .container{ padding: 0 20px; }
  .page-hero__title{ font-size: 26px; }
  .section__title{ font-size: 22px; }
  .grid--2, .grid--3, .grid--4{ grid-template-columns: 1fr; }
  .site-footer__grid{ grid-template-columns: 1fr; }
  .card{ padding: 24px; }
}