/* =====================================================
   kdev studio — portfolio site
   Aesthetic: gallery minimalism (warm alabaster + ink)
   ─────────────────────────────────────────────────────
   All design tokens live in :root below.
   To re-theme the whole site, edit only :root.
   ===================================================== */

:root {
  /* ---- Surfaces ---- */
  --paper:      #F7F6F1;   /* page background (warm alabaster) */
  --surface:    #FCFBF7;   /* cards, raised areas */
  --surface-2:  #EFEDE4;   /* subtle fills */

  /* ---- Ink ---- */
  --ink:        #16140F;   /* primary text */
  --ink-2:      #6B655A;   /* secondary text */
  --ink-3:      #9B9488;   /* tertiary / captions */

  /* ---- Accent (single, muted) ---- */
  --accent:     #2C3A4F;   /* ink-blue */
  --accent-2:   #46596F;   /* hover */

  /* ---- Lines ---- */
  --hair:       #E2DDD0;   /* hairline borders */
  --hair-2:     #D4CDBC;

  /* ---- Type ---- */
  --serif:  'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --sans:   'Figtree', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --mono:   'Geist Mono', ui-monospace, Menlo, monospace;

  /* ---- Spacing / layout ---- */
  --container: 1240px;
  --container-narrow: 920px;
  --gutter: 40px;
  --gutter-sm: 22px;
  --section-y: clamp(72px, 11vh, 160px);

  /* ---- Radius ---- */
  --radius: 4px;

  /* ---- Motion ---- */
  --ease: cubic-bezier(.2, .7, .2, 1);
  --dur: 0.45s;
}

/* =====================================================
   Reset
   ===================================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }

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

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* =====================================================
   Reusable primitives
   ===================================================== */

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

.wrap--narrow { max-width: var(--container-narrow); }

/* eyebrow / small label */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::before {
  content: "";
  width: 24px; height: 1px;
  background: var(--hair-2);
}

/* big serif display heading */
.display {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.display em {
  font-style: italic;
  color: var(--accent);
}

/* hairline divider */
.hr {
  border: 0;
  border-top: 1px solid var(--hair);
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
  background: transparent;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.btn:hover {
  background: var(--ink);
  color: var(--paper);
}

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

.btn .arrow { transition: transform var(--dur) var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* inline text link with underline */
.link {
  color: var(--ink);
  border-bottom: 1px solid var(--hair-2);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.link:hover { border-color: var(--accent); color: var(--accent); }

/* =====================================================
   Header
   ===================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hair);
}

.site-header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.brand__dot { color: var(--accent); }

.site-nav {
  display: flex;
  gap: 8px;
  align-items: center;
}

.site-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  padding: 8px 16px;
  border-radius: 999px;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.site-nav a:hover { color: var(--ink); }
.site-nav a.is-active { color: var(--ink); }

.site-nav .btn { padding: 10px 20px; }

.menu-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--hair-2);
  border-radius: 999px;
  align-items: center;
  justify-content: center;
}

/* =====================================================
   Hero
   ===================================================== */

.hero {
  padding: clamp(64px, 12vh, 150px) 0 var(--section-y);
}

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

.hero__eyebrow { margin-bottom: 36px; }

.hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(48px, 8.5vw, 132px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 14ch;
  text-wrap: balance;
}

.hero__title em {
  font-style: italic;
  color: var(--accent);
}

.hero__bottom {
  margin-top: 48px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: end;
  padding-top: 40px;
  border-top: 1px solid var(--hair);
}

.hero__lead {
  font-size: 19px;
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 52ch;
}

.hero__lead strong { color: var(--ink); font-weight: 600; }

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}

.hero__status {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.hero__status::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #4E7A4E;
  box-shadow: 0 0 0 0 rgba(78,122,78,0.5);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(78,122,78,0.45); }
  70%  { box-shadow: 0 0 0 8px rgba(78,122,78,0); }
  100% { box-shadow: 0 0 0 0 rgba(78,122,78,0); }
}

/* =====================================================
   Section scaffolding
   ===================================================== */

.section { padding: var(--section-y) 0; }

.section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.section__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(34px, 4.4vw, 60px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--ink);
  max-width: 18ch;
  text-wrap: balance;
}
.section__title em { font-style: italic; color: var(--accent); }

/* =====================================================
   Selected work — case gallery
   Each .case is a self-contained, copy-pasteable block.
   To add a 6th project: duplicate one .case and edit.
   ===================================================== */

.cases {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 88px) clamp(32px, 4vw, 56px);
}

/* feature case spans full width */
.case--wide { grid-column: 1 / -1; }

.case {
  display: block;
}

.case__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: var(--surface-2);
  aspect-ratio: 16 / 10;
}
.case--wide .case__frame { aspect-ratio: 16 / 8; }

.case__img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.9s var(--ease);
}
.case:hover .case__img { transform: scale(1.025); }

.case__index {
  position: absolute;
  top: 16px; left: 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--hair);
  padding: 4px 10px;
  border-radius: 999px;
}

/* "Live in production" badge — flagship only */
.case__badge {
  position: absolute;
  top: 16px; right: 16px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--hair);
  padding: 4px 11px;
  border-radius: 999px;
}
.case__badge .badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #4E7A4E;
  box-shadow: 0 0 0 0 rgba(78,122,78,0.5);
  animation: pulse 2.4s var(--ease) infinite;
}

.case__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-top: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hair);
}

.case__name {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.case__type {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-align: right;
  white-space: nowrap;
}

.case__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.case__desc {
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 46ch;
}

.case__links {
  display: inline-flex;
  gap: 18px;
  flex-shrink: 0;
}

.case__links a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--hair-2);
  padding-bottom: 3px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.case__links a:hover { color: var(--accent); border-color: var(--accent); }

/* =====================================================
   Capabilities — list with hairlines
   ===================================================== */

.caps { border-top: 1px solid var(--hair); }

.cap {
  display: grid;
  grid-template-columns: 80px 1fr 1.4fr;
  gap: 24px;
  align-items: baseline;
  padding: 32px 0;
  border-bottom: 1px solid var(--hair);
  transition: background var(--dur) var(--ease);
}
.cap:hover { background: var(--surface); }

.cap__num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

.cap__name {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.05;
  color: var(--ink);
}

.cap__desc {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-2);
}

/* =====================================================
   How it works — 3 steps
   ===================================================== */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 56px);
}

.step { }

.step__num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 64px;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 20px;
}

.step__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 28px;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 12px;
}

.step__desc {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-2);
}

/* =====================================================
   About teaser
   ===================================================== */

.about-teaser {
  background: var(--surface);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}

.about-teaser__inner {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: var(--section-y) var(--gutter);
  text-align: center;
}

.about-teaser__quote {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(28px, 4vw, 50px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-wrap: balance;
  margin-bottom: 36px;
}
.about-teaser__quote em { font-style: italic; color: var(--accent); }

/* =====================================================
   Contact
   ===================================================== */

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
}

.contact__aside { }

.contact__email {
  display: inline-block;
  font-family: var(--serif);
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.1;
  color: var(--ink);
  border-bottom: 1px solid var(--hair-2);
  padding-bottom: 6px;
  margin: 20px 0 36px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.contact__email:hover { color: var(--accent); border-color: var(--accent); }

.trust {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 8px;
}
.trust li {
  font-size: 15px;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 12px;
}
.trust li::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* socials */
.socials {
  display: flex;
  gap: 12px;
  margin-top: 36px;
}
.socials a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
  border: 1px solid var(--hair-2);
  border-radius: 999px;
  padding: 8px 16px;
  transition: all var(--dur) var(--ease);
}
.socials a:hover { color: var(--ink); border-color: var(--ink); }

/* form */
.form {
  background: var(--surface);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 44px);
}

.field { display: block; margin-bottom: 22px; }

.field label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 8px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--hair-2);
  border-radius: var(--radius);
  padding: 13px 16px;
  font-family: var(--sans);
  font-size: 16px;
  color: var(--ink);
  outline: none;
  transition: border-color var(--dur) var(--ease);
}
.field input:focus,
.field select:focus,
.field textarea:focus { border-color: var(--accent); }

.field textarea { resize: vertical; min-height: 120px; }

/* honeypot hidden field */
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

.form__submit { width: 100%; justify-content: center; margin-top: 6px; }

.form__note {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.form__success {
  text-align: center;
  padding: 32px 0;
}
.form__success-title {
  font-family: var(--serif);
  font-size: 36px;
  color: var(--accent);
  margin-bottom: 12px;
}

/* =====================================================
   Footer
   ===================================================== */

.site-footer {
  border-top: 1px solid var(--hair);
  padding: 64px 0 40px;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 56px;
}

.site-footer__brand {
  font-family: var(--serif);
  font-size: 28px;
  color: var(--ink);
  max-width: 22ch;
  line-height: 1.2;
}

.site-footer h6 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 16px;
  font-weight: 500;
}

.site-footer ul li { padding: 5px 0; }
.site-footer ul a { color: var(--ink-2); transition: color var(--dur) var(--ease); }
.site-footer ul a:hover { color: var(--accent); }

.site-footer__base {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 28px;
  border-top: 1px solid var(--hair);
  flex-wrap: wrap;
}

.site-footer__legal {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

/* =====================================================
   Interior page hero (about)
   ===================================================== */

.page-hero {
  padding: clamp(56px, 9vh, 110px) 0 var(--section-y);
  border-bottom: 1px solid var(--hair);
}
.page-hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(48px, 9vw, 120px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-top: 28px;
  text-wrap: balance;
}
.page-hero__title em { font-style: italic; color: var(--accent); }
.page-hero__lead {
  margin-top: 28px;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 58ch;
}

/* prose / about content */
.prose { max-width: 64ch; }
.prose p {
  font-size: 18px;
  line-height: 1.75;
  color: var(--ink-2);
  margin-bottom: 20px;
}
.prose p strong { color: var(--ink); font-weight: 600; }
.prose p em { font-family: var(--serif); font-style: italic; font-size: 1.1em; color: var(--accent); }

/* stack list */
.stack {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
}
.stack__cell {
  background: var(--surface);
  padding: 24px 26px;
}
.stack__cell h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 12px;
}
.stack__cell p {
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1.4;
  color: var(--ink);
}

/* faq */
.faq { border-top: 1px solid var(--hair); max-width: var(--container-narrow); }
.faq__item {
  padding: 28px 0;
  border-bottom: 1px solid var(--hair);
}
.faq__q {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 12px;
}
.faq__a {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-2);
  max-width: 68ch;
}

/* =====================================================
   Reveal-on-scroll helper
   ===================================================== */

/* Reveal is intentionally a no-op for content visibility — content is
   always shown. Only the hero gets a gentle one-shot entrance below. */

/* Hero entrance — plays once on load, never hides content for long */
.js .hero__eyebrow,
.js .hero__title,
.js .hero__bottom {
  animation: rise 0.8s var(--ease) both;
}
.js .hero__title  { animation-delay: 0.08s; }
.js .hero__bottom { animation-delay: 0.22s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

/* respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; }
}

/* =====================================================
   Responsive
   ===================================================== */

@media (max-width: 900px) {
  :root { --gutter: var(--gutter-sm); }

  .site-nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .site-header.is-open .site-nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--hair);
    padding: 16px var(--gutter-sm) 24px;
    gap: 4px;
  }
  .site-header.is-open .site-nav .btn { margin-top: 8px; justify-content: center; }

  .hero__bottom { grid-template-columns: 1fr; gap: 28px; }

  .cases { grid-template-columns: 1fr; }
  .case--wide { grid-column: auto; }
  .case__frame, .case--wide .case__frame { aspect-ratio: 16 / 10; }

  .cap { grid-template-columns: 1fr; gap: 8px; padding: 24px 0; }
  .cap__num { order: -1; }

  .steps { grid-template-columns: 1fr; gap: 36px; }

  .contact__grid { grid-template-columns: 1fr; }

  .stack { grid-template-columns: 1fr; }

  .site-footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .case__meta { flex-direction: column; gap: 6px; }
  .case__type { text-align: left; }
  .case__foot { flex-direction: column; align-items: flex-start; gap: 14px; }
  .site-footer__top { grid-template-columns: 1fr; gap: 32px; }
  .site-footer__base { flex-direction: column; align-items: flex-start; }
  .socials { flex-wrap: wrap; }
}