/* ==========================================================================
   Dryware Systems — landing page styles
   Aesthetic: editorial, minimal, research-lab restraint.
   Palette: warm paper, near-black ink, cool gray, one restrained ink accent.
   ========================================================================== */

:root {
  /* Palette */
  --paper:        #f6f5f2;
  --paper-raise:  #fbfaf8;
  --ink:          #181715;
  --ink-soft:     #3b3935;
  --gray:         #8a8780;
  --gray-line:    #e4e1db;
  --gray-line-2:  #d8d4cc;
  --accent:       #4a3f95;   /* restrained ink-violet, used sparingly */
  --accent-soft:  #6b5fb4;

  /* Type */
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;

  /* Metrics */
  --measure: 70rem;
  --measure-prose: 40rem;
  --gutter: 1.5rem;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ----------------------------------------------------------------- reset */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv05", "ss01";
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

::selection {
  background: var(--ink);
  color: var(--paper);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: var(--ink);
  color: var(--paper);
}
.skip-link:focus { left: 0; }

/* ----------------------------------------------------------------- layout */

.wrap {
  width: 100%;
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(5rem, 10vw, 9rem); }

.section-head {
  max-width: 52rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.section-index {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
  margin: 0 0 1.25rem;
}

.section-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 1.5rem;
  color: var(--ink);
}

.section-deck {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 44rem;
  margin: 0;
}

/* ----------------------------------------------------------------- header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}

.site-header.scrolled { border-bottom-color: var(--gray-line); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.brand-mark {
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: var(--ink);
  position: relative;
  flex: none;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 0.28rem;
  border-radius: 50%;
  background: var(--paper);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 3vw, 2.25rem);
  font-size: 0.92rem;
}

.site-nav a {
  color: var(--ink-soft);
  transition: color 0.25s var(--ease);
  position: relative;
}
.site-nav a:hover { color: var(--ink); }

.site-nav .nav-cta {
  padding: 0.5rem 1rem;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  color: var(--ink);
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}
.site-nav .nav-cta:hover { background: var(--ink); color: var(--paper); }

/* ----------------------------------------------------------------- hero */

.hero {
  padding-block: clamp(6rem, 16vw, 12rem) clamp(4rem, 8vw, 7rem);
  position: relative;
}

.hero::before {
  /* faint vertical rule on the left for editorial structure */
  content: "";
  position: absolute;
  left: var(--gutter);
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--gray-line);
  opacity: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
  margin: 0 0 2.5rem;
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #3f8f5f;
  box-shadow: 0 0 0 3px color-mix(in srgb, #3f8f5f 22%, transparent);
  flex: none;
}

.hero-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.6rem, 8vw, 5.5rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 2rem;
  max-width: 16ch;
  color: var(--ink);
}

.hero-lede {
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 38rem;
  margin: 0 0 2.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
              border-color 0.25s var(--ease), transform 0.25s var(--ease);
  cursor: pointer;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn-primary:hover { background: var(--ink-soft); border-color: var(--ink-soft); }

.btn-ghost {
  color: var(--ink);
  border-color: var(--gray-line-2);
}
.btn-ghost:hover { border-color: var(--ink); }

/* ----------------------------------------------------------------- strip */

.strip {
  border-block: 1px solid var(--gray-line);
  background: var(--paper-raise);
  overflow: hidden;
}
.strip-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  padding-block: 1rem;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  white-space: nowrap;
}
.strip-inner .sep { color: var(--gray-line-2); }

/* ----------------------------------------------------------------- services */

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--gray-line);
}

.service {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1.5rem;
  padding: clamp(1.75rem, 3vw, 2.5rem) 0;
  border-bottom: 1px solid var(--gray-line);
  transition: background 0.3s var(--ease);
}
.service:hover { background: var(--paper-raise); }

.service-num {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--gray);
  padding-top: 0.3rem;
}

.service-body h3 {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 0.6rem;
  color: var(--ink);
}
.service-body p {
  margin: 0;
  color: var(--ink-soft);
  max-width: 46rem;
}

/* ----------------------------------------------------------------- approach */

.approach { background: var(--paper-raise); border-block: 1px solid var(--gray-line); }

.approach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}

.approach-aside .section-title { margin-bottom: 0; }

.approach-body .lede {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 clamp(2.5rem, 5vw, 3.5rem);
  max-width: 36rem;
}

.approach-points {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem) clamp(2rem, 4vw, 3.5rem);
}

.point h3 {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin: 0 0 0.6rem;
  color: var(--ink);
}
.point h3::before {
  content: "";
  display: block;
  width: 1.5rem;
  height: 1px;
  background: var(--ink);
  margin-bottom: 1rem;
}
.point p { margin: 0; color: var(--ink-soft); }

/* ----------------------------------------------------------------- practice */

.practice-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--gray-line);
  border: 1px solid var(--gray-line);
}

.practice-card {
  background: var(--paper);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  transition: background 0.3s var(--ease);
}
.practice-card:hover { background: var(--paper-raise); }

.practice-card h3 {
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem;
  color: var(--ink);
}
.practice-card p { margin: 0; color: var(--ink-soft); }

/* ----------------------------------------------------------------- contact */

.contact { background: var(--paper-raise); border-top: 1px solid var(--gray-line); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 6vw, 4rem);
}

.contact-note {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 32rem;
  margin: 0 0 2rem;
}

.contact-details {
  margin: 0;
  border-top: 1px solid var(--gray-line);
}

.contact-row {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 1rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--gray-line);
}
.contact-row dt {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  padding-top: 0.2rem;
}
.contact-row dd { margin: 0; }
.contact-row dd a {
  color: var(--ink);
  border-bottom: 1px solid var(--gray-line-2);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.contact-row dd a:hover { color: var(--accent); border-color: var(--accent); }
.contact-row address { font-style: normal; line-height: 1.6; color: var(--ink-soft); }

/* ----------------------------------------------------------------- footer */

.site-footer {
  border-top: 1px solid var(--gray-line);
  background: var(--paper);
  padding-block: 3.5rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink);
}

.footer-meta {
  margin: 0;
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.9rem;
}
.footer-nav a { color: var(--ink-soft); }
.footer-nav a:hover { color: var(--ink); }

.footer-legal {
  margin: 0;
  font-size: 0.82rem;
  color: var(--gray);
  border-top: 1px solid var(--gray-line);
  padding-top: 1.5rem;
}

/* ----------------------------------------------------------------- reveal */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ----------------------------------------------------------------- responsive */

@media (min-width: 760px) {
  .approach-grid {
    grid-template-columns: 18rem 1fr;
    align-items: start;
  }
  .approach-aside { position: sticky; top: 6rem; }

  .contact-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: start;
  }
  .footer-nav { justify-self: end; }
}

@media (min-width: 980px) {
  :root { --gutter: 2.5rem; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .section { padding-block: clamp(3.5rem, 12vw, 5rem); }
  .approach-points { grid-template-columns: 1fr; }
  .practice-grid { grid-template-columns: 1fr; }
  .service { grid-template-columns: 2.5rem 1fr; gap: 1rem; }
  .contact-row { grid-template-columns: 1fr; gap: 0.25rem; }
  .contact-row dt { padding-top: 0; }
  .site-nav { gap: 0.9rem; }
  .site-nav a:not(.nav-cta) { display: none; }
  .hero-actions .btn { flex: 1 1 auto; }
}

/* Focus visibility for keyboard users */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}