/* =========================
   Base / Theme
========================= */
:root {
  --bg: #070b18;
  --panel: #0b1230;
  --text: #e9eefc;
  --muted: #b7c0d9;
  --border: rgba(255, 255, 255, 0.1);
  --accent: #4798fb;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);

  --radius: 18px;
  --max: 1100px;
  --gap: 18px;
}

:root[data-theme="light"] {
  --bg: #f7f8fc;
  --panel: #ffffff;
  --text: #0c1020;
  --muted: #4b5568;
  --border: rgba(0, 0, 0, 0.1);
  --accent: #3b4bff;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Arial;
  background:
    radial-gradient(
      1200px 500px at 15% -3%,
      rgba(111, 134, 255, 0.22),
      transparent 55%
    ),
    radial-gradient(
      900px 500px at 100% 10%,
      rgba(111, 134, 255, 0.14),
      transparent 50%
    ),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
.container {
  max-width: var(--max);
  padding: 0 18px;
  margin: 0 auto;
}

.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;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: var(--panel);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  z-index: 9999;
}
.skip-link:focus {
  left: 10px;
}

.accent {
  color: var(--accent);
}

/* =========================
   Header / Nav
========================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid var(--border);
}
:root[data-theme="light"] .site-header {
  background: rgba(255, 255, 255, 0.7);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.3px;
}
.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(124, 140, 255, 0.15);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-menu {
  list-style: none;
  display: flex;
  gap: 10px;
  padding: 0;
  margin: 0;
}

.nav-link {
  display: inline-block;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
  border: 1px solid transparent;
}
.nav-link:hover {
  color: var(--text);
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.04);
}

.theme-toggle {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
}
.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.07);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
}

/* =========================
   Hero
========================= */
.hero {
  padding: 120px 0 32px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 24px;
  align-items: stretch;
}
.pill {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  margin: 0 0 12px;
  background: rgba(255, 255, 255, 0.03);
}
.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1.15;
}
.subtitle {
  margin: 0 0 16px;
  color: var(--muted);
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 18px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
}
.btn:hover {
  background: rgba(255, 255, 255, 0.07);
}
.btn.primary {
  background: var(--accent);
  border-color: transparent;
  color: white;
}
.btn.primary:hover {
  filter: brightness(0.95);
}

/* Hero Card */
.hero-card {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.profile {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  min-height: 160px;
}
.profile img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  object-position: center 10%;
}
.profile-fallback {
  height: 330px;
  display: grid;
  place-content: center;
  gap: 6px;
  color: var(--muted);
}
.profile-fallback span {
  font-size: 34px;
}

/* =========================
   Sections / Cards
========================= */
.section {
  padding: 42px 0;
}
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.section h2 {
  margin: 0;
  font-size: 28px;
}

.card {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.chips {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.note {
  margin-top: 14px;
  border-top: 1px dashed var(--border);
  padding-top: 12px;
  color: var(--muted);
}

/* =========================
   Projects
========================= */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}

.project {
  padding: 0;
  overflow: hidden;
}
.project-img-wrap {
  position: relative;
  border-bottom: 1px solid var(--border);
  min-height: 220px;
  background: rgba(255, 255, 255, 0.03);
}
.project-img-wrap img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}
.project-img-wrap .img-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 8px;
  color: var(--muted);
  font-size: 28px;
}
.project-img-wrap .img-placeholder span {
  font-size: 0.95rem;
  color: var(--muted);
}

.project-img-wrap.img-fallback .img-placeholder {
  display: grid;
}
.project-img-wrap:not(.img-fallback) .img-placeholder {
  display: none;
}

.project-body {
  padding: 16px;
}
.project-body h3 {
  margin: 0 0 8px;
}
.project-body p {
  margin: 0 0 10px;
  color: var(--muted);
}
.bullets {
  margin: 0 0 12px 18px;
  color: var(--text);
}

/* =========================
   Contact
========================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  align-items: start;
}
.form .field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}
label {
  font-weight: 650;
}
input,
textarea {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 11px 12px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  outline: none;
}
input:focus,
textarea:focus {
  border-color: rgba(124, 140, 255, 0.6);
  box-shadow: 0 0 0 4px rgba(124, 140, 255, 0.18);
}
.error {
  min-height: 18px;
  color: #ffb4b4;
}

/* =========================
   Footer + Toast
========================= */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 18px 0;
  color: var(--muted);
}
.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.footer-row p {
  margin: 9px;
}

.to-top {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
}
.to-top:hover {
  background: rgba(255, 255, 255, 0.06);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 14px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 200ms ease,
    transform 200ms ease;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}

/* =========================
   Responsive
========================= */
@media (max-width: 920px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
  }
  .nav-menu {
    position: absolute;
    right: 18px;
    top: 74px;
    flex-direction: column;
    padding: 10px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    width: min(240px, calc(100vw - 36px));
    display: none;
  }
  .nav-menu.open {
    display: flex;
  }
}

/* Utility */

.about-stack {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

body {
  position: relative; /* needed for ::before overlay */
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -40%;
  pointer-events: none;
  z-index: 0;

  /* A thin diagonal "shine" band */
  background: linear-gradient(
    120deg,
    transparent 45%,
    rgba(111, 134, 255, 0) 48%,
    rgba(111, 134, 255, 0.2) 50%,
    rgba(111, 134, 255, 0) 52%,
    transparent 55%
  );

  transform: translateX(-60%) translateY(0);
  opacity: 0.9;

  animation: bgShine 14s ease-in-out infinite;
}

/* Move the band across slowly */
@keyframes bgShine {
  0% {
    transform: translateX(-70%) translateY(0);
    opacity: 0;
  }
  10% {
    opacity: 0.9;
  }
  80% {
    transform: translateX(70%) translateY(0);
    opacity: 0.9;
  }
  90% {
    opacity: 0;
  }
  100% {
    transform: translateX(70%) translateY(0);
    opacity: 0;
  }
}

/* Make sure your content stays above the overlay */
.site-header,
main,
footer {
  position: relative;
  z-index: 1;
}

/* Projects search controls */
.projects-controls {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 14px 0 10px;
  flex-wrap: wrap;
}
.project-search {
  flex: 1 1 280px;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 11px 12px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  outline: none;
}
.project-search:focus {
  border-color: rgba(71, 152, 251, 0.65);
  box-shadow: 0 0 0 4px rgba(71, 152, 251, 0.18);
}

.empty-state {
  color: var(--muted);
  margin: 8px 0 0;
}

/* API card */
.api-card .api-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.api-status {
  margin: 10px 0 0;
  color: var(--muted);
}
.api-quote {
  margin: 12px 0 0;
  padding-left: 14px;
  border-left: 3px solid rgba(71, 152, 251, 0.55);
  color: var(--text);
  white-space: pre-line; /* allows line break in quote */
}
.api-author {
  margin: 10px 0 0;
  color: var(--muted);
  font-weight: 650;
}

/* Small animated loading shimmer for the status text */
.api-status.loading {
  position: relative;
  overflow: hidden;
}
.api-status.loading::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-60%);
  background: linear-gradient(
    120deg,
    transparent 0%,
    rgba(255, 255, 255, 0.08) 45%,
    transparent 90%
  );
  animation: statusShine 1.2s ease-in-out infinite;
}
@keyframes statusShine {
  0% {
    transform: translateX(-60%);
  }
  100% {
    transform: translateX(60%);
  }
}