/* =========================================================
   Yaniv Dotan — Personal Site
   Light/Dark themes via CSS variables, RTL-ready layout.
   ========================================================= */

/* ---------- Theme variables ---------- */

:root {
  --bg: #ffffff;
  --bg-soft: #f4f6f9;
  --bg-card: #ffffff;
  --text: #18202e;
  --text-muted: #56606f;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-contrast: #ffffff;
  --accent-soft: rgba(37, 99, 235, 0.09);
  --border: #e5e8ee;
  --shadow: 0 12px 32px rgba(24, 32, 46, 0.08);
  --header-bg: rgba(255, 255, 255, 0.82);
}

[data-theme="dark"] {
  --bg: #0f1624;
  --bg-soft: #141c2e;
  --bg-card: #1a2336;
  --text: #e7ecf4;
  --text-muted: #9daabc;
  --accent: #6ba4ff;
  --accent-strong: #8db8ff;
  --accent-contrast: #0d1420;
  --accent-soft: rgba(107, 164, 255, 0.12);
  --border: #273348;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  --header-bg: rgba(15, 22, 36, 0.82);
}

/* ---------- Base ---------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  font-family: "Inter", "Heebo", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  transition: background-color 0.25s ease, color 0.25s ease;
  -webkit-font-smoothing: antialiased;
}

html[lang="he"] body {
  font-family: "Heebo", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

h1, h2, h3 {
  line-height: 1.2;
  letter-spacing: -0.02em;
}

/* Hebrew doesn't take negative tracking well */
html[lang="he"] h1,
html[lang="he"] h2,
html[lang="he"] h3 {
  letter-spacing: 0;
}

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

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

.container {
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.skip-link {
  position: absolute;
  inset-inline-start: 1rem;
  top: -100%;
  z-index: 100;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  background-color: var(--accent);
  color: var(--accent-contrast);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
  padding-block: 0.8rem;
}

.logo {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.4rem;
  margin-inline-start: auto;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--accent);
}

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

.control-btn {
  appearance: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.25rem;
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background-color: transparent;
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.control-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.icon-btn {
  width: 2.25rem;
  padding: 0;
}

.icon-btn svg {
  width: 1.1rem;
  height: 1.1rem;
}

.icon-sun {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: block;
}

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

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(5rem, 14vh, 8.5rem);
}

.hero::before {
  content: "";
  position: absolute;
  top: -30%;
  inset-inline-end: -12%;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  animation: fade-up 0.6s ease both;
}

.hero-kicker {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-weight: 600;
}

.hero-name {
  margin: 0 0 1rem;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
}

.hero-role {
  margin: 0 0 1.25rem;
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  font-weight: 500;
  color: var(--text-muted);
}

.hero-desc {
  max-width: 40rem;
  margin: 0 0 2.25rem;
  font-size: 1.05rem;
  color: var(--text-muted);
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--accent-contrast);
}

.btn-primary:hover {
  background-color: var(--accent-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

/* ---------- Sections ---------- */

.section {
  padding-block: 4.5rem;
}

.section-alt {
  background-color: var(--bg-soft);
  transition: background-color 0.25s ease;
}

.section-title {
  margin: 0 0 2.25rem;
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  font-weight: 700;
}

.section-title::after {
  content: "";
  display: block;
  width: 2.5rem;
  height: 3px;
  margin-top: 0.6rem;
  border-radius: 2px;
  background-color: var(--accent);
}

/* ---------- About ---------- */

.about-text {
  max-width: 44rem;
  margin: 0 0 1.1rem;
  font-size: 1.05rem;
  color: var(--text-muted);
}

.about-text:last-child {
  margin-bottom: 0;
}

/* ---------- Skills cards ---------- */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
}

.card {
  padding: 1.6rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background-color: var(--bg-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease,
    background-color 0.25s ease, border-color 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card-icon {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: 1.1rem;
  border-radius: 0.75rem;
  background-color: var(--accent-soft);
  color: var(--accent);
}

.card-icon svg {
  width: 1.4rem;
  height: 1.4rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ---------- Selected work ---------- */

.work-placeholder {
  padding: 3.5rem 1.5rem;
  border: 1.5px dashed var(--border);
  border-radius: 1rem;
  text-align: center;
  color: var(--text-muted);
  transition: border-color 0.25s ease;
}

.work-placeholder svg {
  width: 2.25rem;
  height: 2.25rem;
  margin-bottom: 0.75rem;
  color: var(--accent);
  opacity: 0.8;
}

.work-placeholder p {
  margin: 0;
  font-size: 1.05rem;
}

/* ---------- Contact ---------- */

.contact-container {
  max-width: 46rem;
  text-align: center;
}

.contact-container .section-title::after {
  margin-inline: auto;
}

.contact-desc {
  margin: 0 0 2rem;
  color: var(--text-muted);
}

.email-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.email-link:hover {
  color: var(--accent-strong);
  text-decoration: underline;
  text-underline-offset: 5px;
}

.email-link svg {
  width: 1.25em;
  height: 1.25em;
  flex-shrink: 0;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 2rem;
  transition: border-color 0.25s ease;
}

.site-footer p {
  margin: 0;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  html {
    scroll-padding-top: 7.5rem;
  }

  .header-inner {
    padding-block: 0.65rem;
  }

  /* Nav drops to its own compact row under the logo + controls */
  .site-nav {
    order: 3;
    flex-basis: 100%;
    margin-inline-start: 0;
    gap: 0.25rem 1.1rem;
    padding-bottom: 0.15rem;
  }

  .site-nav a {
    font-size: 0.9rem;
  }

  .header-controls {
    margin-inline-start: auto;
  }

  .section {
    padding-block: 3.5rem;
  }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}