/* ============================================================
   Ryujyn Portfolio — vanilla CSS
   Tokens, layout, components, motion, responsive.
   ============================================================ */

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

:root {
  /* Brand */
  --navy: #0e1c34;
  --navy-2: #16294a;
  --yellow: #f3c13a;
  --yellow-2: #d9a514;
  --white: #ffffff;

  /* Surfaces */
  --paper: #f6f8fc;
  --paper-2: #eef2f9;
  --card: #ffffff;
  --nav-bg: rgba(246, 248, 252, 0.78);

  /* Ink */
  --ink: #0e1c34;
  --muted: #4d5a72;
  --faint: #8693aa;
  --line: #dbe1ec;

  /* Effects */
  --shadow: 0 24px 60px rgba(14, 28, 52, 0.10);
  --shadow-soft: 0 10px 30px rgba(14, 28, 52, 0.06);
  --shadow-yellow: 0 14px 32px rgba(243, 193, 58, 0.28);

  /* Type */
  --font: "Sarabun", "Inter", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;

  /* Layout */
  --max-w: 1180px;
  --nav-h: 60px;
  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 22px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t: 220ms var(--ease);
  --t-slow: 700ms var(--ease);
}

[data-theme="dark"] {
  --paper: #060d1b;
  --paper-2: #0c172c;
  --card: #0f1c36;
  --nav-bg: rgba(6, 13, 27, 0.78);
  --ink: #eef2fa;
  --muted: #a4b0c5;
  --faint: #6a778e;
  --line: #1f3056;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.30);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  min-height: 100vh;
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  overflow-x: hidden;
  transition: background var(--t-slow), color var(--t-slow);
}

/* Subtle grid pattern that fades out down the page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(14, 28, 52, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(14, 28, 52, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 70%);
          mask-image: linear-gradient(to bottom, black 0%, transparent 70%);
}

[data-theme="dark"] body::before {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
}

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

button {
  border: 0;
  background: none;
  color: inherit;
  font-family: inherit;
  cursor: pointer;
}

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

/* ================== Layout primitives ================== */

.container {
  width: min(100% - 40px, var(--max-w));
  margin-inline: auto;
}

.section {
  padding: clamp(4.5rem, 9vw, 7.5rem) 0;
  position: relative;
}

.section--alt {
  background: var(--paper-2);
}

/* Section header */
.section__header {
  display: grid;
  gap: 0.8rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section__header--split {
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: end;
}

.section__num {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--yellow-2);
}

[data-theme="dark"] .section__num,
[data-theme="dark"] .eyebrow,
[data-theme="dark"] .project-card__eyebrow {
  color: var(--yellow);
}

.section__title {
  font-size: clamp(2.1rem, 5.2vw, 3.6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.section__intro {
  max-width: 540px;
  color: var(--muted);
  font-size: 1.05rem;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--yellow-2);
}

/* ================== Nav ================== */

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--nav-h);
  background: var(--nav-bg);
  border-bottom: 1px solid transparent;
  -webkit-backdrop-filter: blur(18px);
          backdrop-filter: blur(18px);
  transition: border-color var(--t), box-shadow var(--t), background var(--t-slow);
}

.nav.scrolled {
  border-color: var(--line);
  box-shadow: var(--shadow-soft);
}

.nav__container {
  height: 100%;
  width: min(100% - 40px, var(--max-w));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  color: var(--ink);
}

.brand-logo {
  display: block;
  height: auto;
  object-fit: contain;
  flex: 0 0 auto;
}

.brand-logo--nav {
  width: 4.2rem;
}

.brand-logo--identity {
  width: clamp(7.25rem, 18vw, 9.5rem);
  margin-bottom: 0.9rem;
}

.brand-logo--footer {
  width: 4.8rem;
}

.brand-logo--light,
[data-theme="dark"] .brand-logo--dark {
  display: none;
}

[data-theme="dark"] .brand-logo--light {
  display: block;
}

.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;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.3rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--card) 78%, transparent);
}

.nav__link {
  min-width: 76px;
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
  text-align: center;
  transition: color var(--t), background var(--t);
}

.nav__link:hover {
  color: var(--ink);
  background: var(--paper-2);
}

.nav__link.active {
  color: var(--navy);
  background: var(--yellow);
}

.nav__controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  transition: transform var(--t), border-color var(--t), color var(--t), background var(--t);
}

.btn-icon:hover {
  transform: translateY(-1px);
  border-color: var(--yellow);
  color: var(--ink);
}

.btn-icon .icon {
  width: 18px;
  height: 18px;
}

[data-theme="light"] .icon-moon,
[data-theme="dark"] .icon-sun {
  display: none;
}

.nav__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
}

.nav__menu-btn span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform var(--t), opacity var(--t);
}

.nav__menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__menu-btn.open span:nth-child(2) { opacity: 0; }
.nav__menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: var(--nav-h);
  left: 20px;
  right: 20px;
  z-index: 90;
  display: none;
  flex-direction: column;
  padding: 0.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--t), opacity var(--t);
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu__link {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-weight: 700;
}

.mobile-menu__link:hover,
.mobile-menu__link.active {
  color: var(--ink);
  background: var(--paper-2);
}

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

.hero {
  min-height: 100dvh;
  padding: calc(var(--nav-h) + 5rem) 0 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.78fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 6rem);
}

.hero__content { max-width: 760px; }

.hero__title {
  margin-top: 1.2rem;
  font-size: clamp(2.2rem, 6vw, 4.8rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.hero__title-row {
  display: block;
}

.hero__title-accent {
  color: var(--yellow-2);
}

[data-theme="dark"] .hero__title-accent {
  color: var(--yellow);
}

.hero__desc {
  max-width: 620px;
  margin-top: 1.5rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.16rem);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.2rem;
}

.btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.8rem 1.25rem;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.95rem;
  line-height: 1.2;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t), background var(--t), color var(--t);
}

.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: var(--yellow);
  color: var(--navy);
  box-shadow: var(--shadow-yellow);
}

.btn--primary:hover { background: var(--yellow-2); }

.btn--ghost {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--card) 80%, transparent);
  color: var(--ink);
}

.btn--ghost:hover { border-color: var(--yellow); }

.hero__panel {
  position: relative;
  display: grid;
  place-items: center;
}

.identity-card {
  width: min(100%, 420px);
  padding: clamp(1.2rem, 3vw, 1.6rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--card), color-mix(in srgb, var(--card) 78%, var(--paper-2)));
  box-shadow: var(--shadow);
  animation: floatY 9s ease-in-out infinite;
}

.identity-card__top,
.identity-card__meta,
.identity-card__focus > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.identity-card__top {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.identity-card__main {
  margin: clamp(3.2rem, 8vw, 5.4rem) 0 1.35rem;
}

.identity-card__brand {
  margin-bottom: 0.4rem;
  color: var(--yellow-2);
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

[data-theme="dark"] .identity-card__brand {
  color: var(--yellow);
}

.identity-card__main h2 {
  font-size: clamp(1.8rem, 4vw, 2.55rem);
  line-height: 1;
  letter-spacing: -0.02em;
}

.identity-card__main p {
  margin-top: 0.6rem;
  color: var(--muted);
  font-weight: 800;
}

.identity-card__meta {
  align-items: stretch;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.identity-card__meta div {
  display: grid;
  gap: 0.2rem;
}

.identity-card__meta span,
.identity-card__focus > span {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.identity-card__meta strong {
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.35;
}

.identity-card__focus {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.identity-card__focus > div {
  justify-content: flex-start;
  flex-wrap: wrap;
}

.identity-card__focus strong {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 800;
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

/* Signal strip */
.hero__signals {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(3rem, 7vw, 4.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--line);
  box-shadow: var(--shadow-soft);
}

.signal {
  min-height: 116px;
  padding: 1.3rem 1.2rem;
  background: var(--card);
}

.signal strong {
  display: block;
  margin-bottom: 0.4rem;
  font-family: var(--mono);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  line-height: 1.15;
  color: var(--yellow-2);
}

[data-theme="dark"] .signal strong { color: var(--yellow); }

.signal span {
  color: var(--muted);
  font-weight: 700;
  font-size: 0.95rem;
}

/* ================== Mockup component (used in hero + projects) ================== */

.mockup {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: border-color var(--t), transform var(--t);
}

.mockup__chrome {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0.95rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
}

.mockup__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--line);
}

.mockup__dot:nth-child(1) { background: #ff5f57; }
.mockup__dot:nth-child(2) { background: #f3c13a; }
.mockup__dot:nth-child(3) { background: #2ac752; }

.mockup__url {
  margin-left: 0.6rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.mockup__body {
  padding: 1.2rem 1.2rem 1.4rem;
  display: grid;
  gap: 1rem;
}

.mockup__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.mockup__head-label {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--ink);
}

.mockup__head-badge {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 800;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  border: 1px dashed var(--line);
  color: var(--faint);
}

.mockup__rows {
  display: grid;
  gap: 0.65rem;
}

.mockup__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--paper);
  border: 1px solid var(--line);
}

.mockup__row span {
  display: block;
  height: 8px;
  width: 60%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--line), color-mix(in srgb, var(--line) 50%, transparent));
}

.mockup__row i {
  display: block;
  height: 6px;
  border-radius: 999px;
  background: var(--yellow);
  opacity: 0.85;
}

.mockup--image img {
  width: 100%;
  height: auto;
  display: block;
}

.mockup--gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  padding: 0;
  border: none;
  background: transparent;
  border-radius: 0;
}

.mockup--gallery img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top;
  border-radius: 12px;
  display: block;
}

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

.about__grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.about__story { max-width: 760px; }

.about__lead {
  color: var(--ink);
  font-size: clamp(1.2rem, 2.1vw, 1.6rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.005em;
}

.about__story p:not(.about__lead) {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 1.04rem;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 2.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}

.about__stats > div {
  min-height: 108px;
  padding: 1rem 1.1rem;
  background: var(--card);
}

.about__stats strong {
  display: block;
  font-family: var(--mono);
  font-size: 1.4rem;
  color: var(--yellow-2);
  line-height: 1;
  margin-bottom: 0.45rem;
}

[data-theme="dark"] .about__stats strong { color: var(--yellow); }

.about__stats span {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.about__photos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3, 1rem);
  margin: var(--sp-6, 2rem) 0;
  border-radius: var(--radius, 12px);
  overflow: hidden;
}

.about__photos img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

/* ================== Focus ================== */

.focus__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
}

.focus-card {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-soft);
  transition: border-color var(--t), transform var(--t), box-shadow var(--t);
}

.focus-card:hover {
  border-color: color-mix(in srgb, var(--yellow) 70%, var(--line));
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.focus-card > span {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.focus-card h3 {
  font-size: clamp(1.45rem, 2.6vw, 2rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.focus-card p {
  color: var(--muted);
  font-size: 0.98rem;
}

.focus-card strong {
  margin-top: auto;
  color: var(--yellow-2);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}

[data-theme="dark"] .focus-card strong {
  color: var(--yellow);
}

/* ================== Projects ================== */

.projects__grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2rem);
}

.project-card {
  padding: clamp(1.1rem, 2.2vw, 1.55rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-soft);
  transition: border-color var(--t), box-shadow var(--t), transform var(--t);
}

.project-card:hover {
  border-color: color-mix(in srgb, var(--yellow) 70%, var(--line));
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.project-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--line);
}

.project-card__head-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.project-card__year {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--faint);
}

.project-card__eyebrow {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--yellow-2);
}

.project-card__title {
  margin-top: 0.35rem;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.02em;
}

.project-card__visual {
  max-width: 420px;
  margin: 1rem 0;
}

.project-card__visual:has(.mockup--gallery),
.project-card__visual .mockup--gallery {
  max-width: 100%;
  margin: 1.5rem 0;
}

.project-card__visual .mockup {
  max-width: 420px;
  margin-inline: 0;
  background: var(--paper);
  box-shadow: var(--shadow-soft);
}

.project-card__summary {
  max-width: 900px;
  margin-bottom: 1.25rem;
  color: var(--muted);
  font-size: 1.06rem;
}

.project-card__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
  gap: 1rem;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}

.case-grid section {
  min-height: 170px;
  padding: 1rem;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.case-grid__label,
.stack-card h4 {
  display: block;
  font-family: var(--mono);
  color: var(--yellow-2);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

[data-theme="dark"] .case-grid__label,
[data-theme="dark"] .stack-card h4 {
  color: var(--yellow);
}

.case-grid p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.stack-card {
  padding: 1.2rem;
  border-radius: var(--radius);
  background: var(--navy);
  color: var(--white);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.stack-card h4 {
  margin-bottom: 0.2rem;
  color: var(--yellow);
}

.stack-rows {
  display: grid;
  gap: 0;
}

.stack-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.stack-row:first-child { border-top: 0; }

.stack-row span {
  color: #97a8c7;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.stack-row strong {
  color: var(--white);
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.4;
}

.project-card__footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 1.4rem;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tag,
.skill-item {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.project-card__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project-card__links-empty {
  color: var(--faint);
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

.project-card__no-links-btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border: 1.5px solid var(--c-line, var(--line));
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  transition: border-color var(--t, 220ms), color var(--t, 220ms);
}

.project-card__no-links-btn:hover {
  border-color: var(--yellow);
  color: var(--ink);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  font-weight: 800;
  font-size: 0.86rem;
  transition: border-color var(--t), background var(--t), transform var(--t);
}

.project-link:hover {
  border-color: var(--yellow);
  transform: translateY(-1px);
}

.project-link--primary {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--navy);
}

.project-link--primary:hover {
  background: var(--yellow-2);
  border-color: var(--yellow-2);
}

/* Status badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 32px;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.badge--live {
  background: rgba(24, 163, 99, 0.13);
  color: #128157;
}

[data-theme="dark"] .badge--live { color: #5fdca0; }

.badge--building {
  background: rgba(243, 193, 58, 0.18);
  color: var(--yellow-2);
}

.badge--concept {
  background: color-mix(in srgb, var(--muted) 14%, transparent);
  color: var(--muted);
}

.badge__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

/* ================== Skills ================== */

.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
}

.skill-group {
  min-height: 240px;
  padding: 1.4rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: border-color var(--t), transform var(--t);
}

.skill-group:hover {
  border-color: color-mix(in srgb, var(--yellow) 70%, var(--line));
  transform: translateY(-2px);
}

.skill-group__num {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--faint);
}

.skill-group__title {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.skill-group__items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

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

.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.55fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.contact__lead {
  max-width: 720px;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 1.06rem;
}

.contact__status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 1.5rem;
  padding: 0.65rem 0.95rem;
  border: 1px solid rgba(24, 163, 99, 0.25);
  border-radius: 999px;
  background: rgba(24, 163, 99, 0.10);
  color: #128157;
  font-weight: 800;
  font-size: 0.9rem;
}

[data-theme="dark"] .contact__status { color: #5fdca0; }

.contact__status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 1.8s ease-in-out infinite;
}

.contact__links {
  display: grid;
  gap: 0.7rem;
}

.contact__link {
  display: grid;
  gap: 0.2rem;
  padding: 0.95rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-soft);
  transition: transform var(--t), border-color var(--t);
}

a.contact__link:hover {
  transform: translateY(-2px);
  border-color: var(--yellow);
}

.contact__link span {
  color: var(--faint);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: var(--mono);
}

.contact__link strong {
  color: var(--ink);
  font-size: 0.98rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

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

.footer {
  padding: 2.4rem 0;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 0.88rem;
}

.footer__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--mono);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ================== Reveal animation ================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

[data-delay="1"] { transition-delay: 80ms; }
[data-delay="2"] { transition-delay: 160ms; }
[data-delay="3"] { transition-delay: 240ms; }
[data-delay="4"] { transition-delay: 320ms; }
[data-delay="5"] { transition-delay: 400ms; }

/* ================== Reduced motion ================== */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
  .identity-card { animation: none; }
}

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

@media (max-width: 980px) {
  .hero__grid,
  .about__grid,
  .section__header--split,
  .project-card__body,
  .contact__grid {
    grid-template-columns: 1fr;
  }

  .hero { min-height: auto; }

  .case-grid,
  .focus__grid,
  .skills__grid {
    grid-template-columns: 1fr;
  }

  .case-grid section { min-height: auto; }
}

@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__menu-btn,
  .mobile-menu { display: flex; }
}

@media (max-width: 640px) {
  .container,
  .nav__container {
    width: min(100% - 28px, var(--max-w));
  }

  .hero { padding-top: calc(var(--nav-h) + 3rem); }

  .hero__title {
    font-size: clamp(2.4rem, 12vw, 3.6rem);
  }

  .hero__panel { display: none; }

  .hero__signals,
  .about__stats {
    grid-template-columns: 1fr;
  }

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

  .about__photos img:last-child {
    grid-column: span 2;
  }

  .mockup--gallery {
    grid-template-columns: 1fr 1fr;
  }

  .mockup--gallery img:first-child {
    grid-column: span 2;
    aspect-ratio: 16 / 9;
  }

  .project-card__head {
    flex-direction: column;
    align-items: flex-start;
  }

  .project-card__head-right {
    justify-content: flex-start;
  }

  .project-card__footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .stack-row {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .btn { width: 100%; }

  .footer__row {
    flex-direction: column;
    align-items: flex-start;
  }
}