/* ============================================================
   Manika Gupta — Studio
   Base layout, typography, nav, footer, components.
   Depends on studio-tokens.css being loaded first.
   ============================================================ */

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.01ms !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}

body{
  margin:0;
  background:var(--s-white);
  color:var(--s-ink);
  font-family:var(--s-font-body);
  font-size:var(--s-size-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

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

::selection{ background:var(--s-blue); color:var(--s-white); }

h1,h2,h3,h4{
  font-family:var(--s-font-display);
  font-weight:600;
  line-height:1.05;
  letter-spacing:-0.01em;
  margin:0 0 0.4em 0;
}
h1{ font-size:var(--s-size-h1); }
h2{ font-size:var(--s-size-h2); }
h3{ font-size:var(--s-size-h3); font-weight:600; }

p{ margin:0 0 1em 0; max-width:62ch; }
p:last-child{ margin-bottom:0; }

.s-container{
  max-width:var(--s-max);
  margin:0 auto;
  padding:0 var(--s-gutter);
}

.s-section{ padding:clamp(64px, 10vw, 140px) 0; }
.s-section--paper{ background:var(--s-paper); }
.s-section--navy{ background:var(--s-navy); color:var(--s-on-navy); }
.s-section--navy h1, .s-section--navy h2, .s-section--navy h3{ color:var(--s-on-navy); }
.s-section--navy p{ color:var(--s-on-navy-dim); }

.s-visually-hidden{
  position:absolute; width:1px; height:1px; overflow:hidden;
  clip:rect(0 0 0 0); white-space:nowrap;
}

/* Skip link */
.s-skip-link{
  position:absolute; left:-999px; top:0; z-index:200;
  background:var(--s-ink); color:var(--s-white); padding:12px 20px;
}
.s-skip-link:focus{ left:var(--s-gutter); top:12px; }

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible{
  outline:2px solid var(--s-blue);
  outline-offset:3px;
}

/* ===================== NAV ===================== */
.s-header{
  position:sticky; top:0; z-index:100;
  background:rgba(255,255,255,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--s-line);
}
.s-nav{
  max-width:var(--s-max); margin:0 auto; padding:18px var(--s-gutter);
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.s-brand{
  font-family:var(--s-font-display); font-weight:600; font-size:1.05rem;
  display:flex; align-items:center; gap:10px;
}
.s-brand .mark{
  width:30px; height:30px; border-radius:50%;
  background:var(--s-navy); color:var(--s-white);
  display:flex; align-items:center; justify-content:center;
  font-size:0.9rem; font-weight:700;
}
.s-brand .name-signal{ color:var(--s-signal); }

.s-nav-links{
  list-style:none; margin:0; padding:0; display:flex; gap:clamp(18px,2.4vw,36px);
}
.s-nav-links a{
  position:relative; font-size:0.95rem; padding:6px 0; color:var(--s-ink-dim);
  transition:color var(--s-dur-fast) var(--s-ease);
}
.s-nav-links a:hover{ color:var(--s-ink); }
.s-nav-links a[aria-current="page"]{ color:var(--s-ink); }
.s-nav-links a[aria-current="page"]::after{
  content:""; position:absolute; left:0; right:0; bottom:-2px; height:2px;
  background:var(--s-signal);
}

.s-nav-cta{
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 20px; background:var(--s-ink); color:var(--s-white);
  font-size:0.9rem; font-weight:500; border-radius:var(--s-radius);
  transition:background var(--s-dur-fast) var(--s-ease);
}
.s-nav-cta:hover{ background:var(--s-blue); }

.s-nav-toggle{
  display:none; background:none; border:0; font-size:1.4rem; cursor:pointer;
  color:var(--s-ink);
}

@media (max-width: 880px){
  .s-nav-toggle{ display:block; }
  .s-nav-links{
    position:fixed; inset:0; z-index:99; background:var(--s-white);
    flex-direction:column; gap:0; padding:96px var(--s-gutter) 32px;
    overflow-y:auto;
    transform:translateY(-8px); opacity:0; pointer-events:none;
    transition:opacity var(--s-dur-fast) var(--s-ease), transform var(--s-dur-fast) var(--s-ease);
  }
  /* padding-top (96px) is a deliberate buffer well above the real header
     height (~70px) so the menu never overlaps the nav row, without having
     to measure the header in JS. */
  .s-nav-links.is-open{ opacity:1; transform:translateY(0); pointer-events:auto; }
  .s-nav-links li{ border-bottom:1px solid var(--s-line); }
  .s-nav-links a{ display:block; padding:16px 0; font-size:1.1rem; }
  .s-nav-cta{ display:none; }
}

/* ===================== BUTTONS ===================== */
.s-btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 26px; font-size:0.95rem; font-weight:500;
  border-radius:var(--s-radius); border:1px solid transparent;
  cursor:pointer; transition:transform var(--s-dur-fast) var(--s-ease), background var(--s-dur-fast) var(--s-ease), border-color var(--s-dur-fast) var(--s-ease);
}
.s-btn-primary{ background:var(--s-ink); color:var(--s-white); }
.s-btn-primary:hover{ background:var(--s-blue); }
.s-btn-signal{ background:var(--s-signal-btn); color:var(--s-white); }
.s-btn-signal:hover{ background:var(--s-signal-btn-hover); }
.s-btn-ghost{ background:transparent; color:var(--s-ink); border-color:var(--s-ink); }
.s-btn-ghost:hover{ background:var(--s-ink); color:var(--s-white); }
.s-btn-ghost-light{ background:transparent; color:var(--s-on-navy); border-color:var(--s-on-navy-dim); }
.s-btn-ghost-light:hover{ background:var(--s-on-navy); color:var(--s-navy); }
.s-btn-block{ width:100%; justify-content:center; }

/* ===================== GRID UTILITIES ===================== */
.s-grid-12{ display:grid; grid-template-columns:repeat(12,1fr); gap:var(--s-gutter); }
@media (max-width: 780px){ .s-grid-12{ grid-template-columns:1fr; } }

/* ===================== EYEBROW / LABEL ===================== */
.s-eyebrow{
  display:inline-block; font-size:0.8rem; letter-spacing:0.02em;
  color:var(--s-ink-dim); margin-bottom:14px;
}

/* ===================== CARDS / TILES ===================== */
.s-tile{
  border:1px solid var(--s-line); padding:28px; background:var(--s-white);
  overflow-wrap:break-word; word-break:break-word;
}
.s-tile > div{ font-size:0.95rem; line-height:1.45; }
@media (max-width:900px){
  .s-contact-card{ grid-column:span 6 !important; }
}

/* ===================== PLACEHOLDER STATE ===================== */
.s-placeholder{
  border:1px dashed var(--s-line); padding:40px; text-align:left;
  color:var(--s-ink-dim); background:var(--s-paper);
}
.s-placeholder .s-placeholder-tag{
  display:inline-block; font-size:0.75rem; font-weight:600;
  color:var(--s-blue-deep); background:#EDF0FD; padding:4px 10px;
  border-radius:20px; margin-bottom:14px;
}

/* ===================== FORMS ===================== */
.s-field{ display:flex; flex-direction:column; gap:6px; margin-bottom:18px; }
.s-field label{ font-size:0.85rem; color:var(--s-ink-dim); }
.s-field input, .s-field select, .s-field textarea{
  font:inherit; padding:13px 14px; border:1px solid var(--s-line);
  background:var(--s-white); border-radius:var(--s-radius); color:var(--s-ink);
}
.s-field input:focus, .s-field select:focus, .s-field textarea:focus{
  border-color:var(--s-blue);
}
.s-field-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
@media (max-width:600px){ .s-field-row{ grid-template-columns:1fr; } }
.s-checkbox-row{ display:flex; align-items:flex-start; gap:10px; margin-bottom:18px; }
.s-checkbox-row input{ margin-top:4px; }
.s-checkbox-row label{ font-size:0.9rem; color:var(--s-ink-dim); }
.s-form-status{ font-size:0.9rem; min-height:1.4em; }
.s-form-status.is-error{ color:#B3261E; }
.s-form-status.is-success{ color:#1C6B3F; }
.s-field.has-error input, .s-field.has-error select, .s-field.has-error textarea{
  border-color:#B3261E;
}
.s-field-error{ font-size:0.8rem; color:#B3261E; display:none; }
.s-field.has-error .s-field-error{ display:block; }

/* ===================== FOOTER ===================== */
.s-footer{ background:var(--s-navy); color:var(--s-on-navy-dim); padding:56px 0 32px; }
.s-footer-wrap{
  display:flex; flex-wrap:wrap; gap:32px; justify-content:space-between; align-items:flex-start;
  border-bottom:1px solid rgba(255,255,255,0.12); padding-bottom:32px; margin-bottom:20px;
}
.s-footer-brand{ font-family:var(--s-font-display); color:var(--s-on-navy); font-size:1.1rem; }
.s-footer-links{ list-style:none; display:flex; flex-wrap:wrap; gap:20px 28px; margin:0; padding:0; }
.s-footer-links a:hover{ color:var(--s-on-navy); }
.s-footer-small{ font-size:0.82rem; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; }
.s-footer-small a:hover{ color:var(--s-on-navy); }

/* ===================== PAGE HERO (secondary pages) ===================== */
.s-page-hero{ padding:clamp(64px,10vw,120px) 0 40px; }
.s-page-hero .s-eyebrow{ color:var(--s-blue-deep); }
.s-page-hero h1{ max-width:16ch; }
.s-page-hero p{ font-size:var(--s-size-lede); color:var(--s-ink-dim); margin-top:18px; }