/* ============================================================
   Szentgyörgyi Dávid — Portfolio
   style.css — Light mode, DM Sans, WCAG 2.1 AA
   ============================================================ */

/* ── Tokens ── */
:root {
  --color-bg:           #f8f7f4;
  --color-surface:      #ffffff;
  --color-border:       #e2e0da;
  --color-border-hover: #c8c5bc;

  --color-text-primary:   #111111;
  --color-text-secondary: #3a3a3a;
  --color-text-muted:     #5a5a5a;
  --color-text-footer:    #666666;

  --color-accent:       #111111;
  --color-badge-bg:     #111111;
  --color-badge-text:   #f8f7f4;
  --color-metric-value: #111111;
  --color-metric-label: #5a5a5a;

  --color-btn-bg:       #111111;
  --color-btn-text:     #f8f7f4;
  --color-btn-bg-hover: #2a2a2a;

  --font-sans: 'DM Sans', system-ui, sans-serif;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;

  --max-width:      1200px;
  --max-width-wide: 1440px;
  --gutter:         clamp(1.25rem, 5vw, 3rem);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --transition: 200ms ease;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scrollbar-gutter: stable;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }

/* ── Accessibility ── */
.skip-nav {
  position: absolute;
  top: -100%;
  left: var(--gutter);
  padding: 0.75rem 1.25rem;
  background: var(--color-accent);
  color: var(--color-bg);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top var(--transition);
}
.skip-nav:focus { top: 1rem; }

.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;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ── Layout ── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

@media (min-width: 1600px) {
  .container { max-width: var(--max-width-wide); }
}

/* ── Navigation ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 90%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  transition: opacity var(--transition);
}
.nav__logo:hover { opacity: 0.6; }

.nav__logo img {
  height: 20px;
  width: auto;
  display: block;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--color-text-primary);
  transition: width var(--transition);
}
.nav__link:hover { color: var(--color-text-primary); }
.nav__link:hover::after { width: 100%; }

/* ── Hero ── */
.hero { padding-block: var(--space-2xl) var(--space-xl); }

.hero__label {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.hero__name {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.hero__tagline {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-weight: 300;
  color: var(--color-text-secondary);
  max-width: 600px;
  line-height: 1.4;
  margin-bottom: var(--space-sm);
}

.hero__domains {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

/* ── Projects ── */
.work { padding-bottom: var(--space-2xl); }

.projects {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
}

/* Card wrapper */
.project-card {
  border-bottom: 1px solid var(--color-border);
}

.project-card:last-child {
  border-bottom: none;
}

/* Inner — kattintható link, grid */
.project-card__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  padding-block: var(--space-xl);
  transition: background var(--transition);
  cursor: pointer;
}

/* Kép bal, szöveg jobb — minden kártyán egységes */
@media (min-width: 768px) {
  .project-card__inner {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
  .project-card__image-wrap { order: 1; }
  .project-card__content    { order: 2; }
}

@media (min-width: 1024px) {
  .project-card__inner { grid-template-columns: 5fr 4fr; gap: var(--space-xl); }
}

/* Hover állapot — csak desktop */
@media (min-width: 768px) {
  .project-card__inner:hover {
    background: color-mix(in srgb, var(--color-surface) 60%, transparent);
  }

  .project-card__inner:hover .project-card__image {
    transform: scale(1.02);
  }
}

/* Mobil padding igazítás */
@media (max-width: 767px) {
  .hero {
    padding-block: var(--space-xl) var(--space-lg);
  }

  .project-card__inner {
    padding-block: var(--space-lg);
    gap: var(--space-md);
  }

  .project-card__content {
    padding-inline: 0;
    padding-block: 0;
  }
}

/* Mobilon a kártya nem kattintható — csak a gomb */
@media (max-width: 767px) {
  .project-card {
    position: relative;
  }

  .project-card__inner {
    pointer-events: none;
  }

  .project-card__btn {
    pointer-events: auto;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
  }

  .project-card__btn::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
  }
}

/* Image wrap — overflow:hidden tartja a képet a kereten belül hover zoom-nál */
.project-card__image-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-border);
  aspect-ratio: 3 / 2;
  margin-inline: var(--space-sm);
}

@media (max-width: 767px) {
  .project-card__image-wrap {
    margin-inline: 0;
  }
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

/* Badge */
.project-card__badge {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  padding: 0.25rem 0.625rem;
  background: var(--color-badge-bg);
  color: var(--color-badge-text);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  letter-spacing: 0.03em;
}

/* Content */
.project-card__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding-block: var(--space-sm);
  padding-inline: var(--space-sm);
}

.project-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  align-items: center;
}

.project-card__category {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.project-card__role {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.project-card__role::before {
  content: '·';
  margin-right: var(--space-xs);
  color: var(--color-border-hover);
}

.project-card__title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

.project-card__desc {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  max-width: 52ch;
}

/* Metrics — kártya kerettel */
.project-card__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-xs);
}

.metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.875rem;
}

.metric__value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-metric-value);
  letter-spacing: -0.01em;
}

.metric__label {
  font-size: 0.75rem;
  color: var(--color-metric-label);
  letter-spacing: 0.02em;
}

/* Gomb — sötét, hangsúlyos */
.project-card__btn {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  margin-top: var(--space-xs);
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-btn-text);
  background: var(--color-btn-bg);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  min-height: 44px;
  letter-spacing: 0.01em;
}

/* Hover — közvetlen és szülőn keresztül egyaránt */
.project-card__btn:hover,
.project-card__inner:hover .project-card__btn {
  background: var(--color-btn-bg-hover);
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-lg);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__copy {
  font-size: 0.875rem;
  color: var(--color-text-footer);
}

.footer__links { display: flex; gap: var(--space-md); }

.footer__link {
  font-size: 0.875rem;
  color: var(--color-text-footer);
  transition: color var(--transition);
  position: relative;
}
.footer__link::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0;
  width: 0; height: 1px;
  background: var(--color-text-primary);
  transition: width var(--transition);
}
.footer__link:hover { color: var(--color-text-primary); }
.footer__link:hover::after { width: 100%; }

/* ── Responsive ── */
@media (max-width: 480px) {
  .nav__links { gap: var(--space-md); }
  .nav__link  { font-size: 0.875rem; }
  .hero       { padding-block: var(--space-xl) var(--space-lg); }

  .project-card__inner    { padding-block: var(--space-lg); }
  .project-card__content  { padding-inline: 0; }

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}