/* ================================
   DESIGN TOKENS (Dark Mode Only)
================================ */
:root {
  --bg: #0f0f10;
  --fg: #f5f5f5;
  --muted: #b5b5b5;
  --line: #232325;
  --accent: #9fd3ff;
  --max: 1100px;
  --pad: 24px;
  --radius: 16px;
  --speed: 180ms;
}

/* ================================
   BASE RESET
================================ */
* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  height: 100%;
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Inter, sans-serif;
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

/* ================================
   WRAPPER
================================ */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: calc(var(--pad) * 2) var(--pad);
}

/* ================================
   HEADER
================================ */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(15,15,16,0.85);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 700;
  letter-spacing: .3px;
}

.links {
  display: flex;
  gap: 20px;
}

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

/* ================================
   HERO
================================ */
.hero {
  padding: 72px var(--pad) 40px;
  border-bottom: 1px solid var(--line);
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 5vw, 48px);
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 60ch;
}

/* ================================
   GRID OF PROJECTS
================================ */
.grid {
  display: grid;
  gap: 18px;
  margin-top: 32px;
  grid-template-columns: repeat(12, 1fr);
}

.card {
  grid-column: span 6;
  background: rgba(30,30,32,0.95);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  cursor: pointer;
  transition: transform var(--speed), border-color var(--speed);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.thumb {
  aspect-ratio: 4 / 4;
  width: 100%;
  overflow: hidden;
  position: relative;
}

.thumb-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}


/* Project text meta */
.meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.title {
  font-weight: 600;
  font-size: clamp(16px, 2.6vw, 18px);
}

.tags {
  color: var(--muted);
  font-size: 14px;
}

/* ================================
   RESPONSIVE GRID
================================ */
@media (max-width: 900px) {
  .card {
    grid-column: span 12;
  }
}

/* phone scaling emphasis */
@media (max-width: 600px) {
  .thumb {
    border-radius: 18px;
  }

  .card {
    gap: 12px;
    padding: 10px;
  }

  .title {
    font-size: 18px;
  }
}

/* ================================
   SECTION LAYOUT
================================ */
section {
  padding: 56px var(--pad);
  border-bottom: 1px solid var(--line);
}

section h2 {
  font-size: clamp(22px, 3.4vw, 28px);
  margin-bottom: 12px;
}

.cols {
  display: grid;
  gap: 28px;
  grid-template-columns: 1.2fr 0.8fr;
}

@media (max-width: 900px) {
  .cols {
    grid-template-columns: 1fr;
  }
}

/* ================================
   FOOTER
================================ */
footer {
  padding: 48px var(--pad);
  color: var(--muted);
}

/* ================================
   MODAL
================================ */
dialog {
  width: min(1000px, 92vw);
  max-height: 95vh;
  border: none;
  padding: 0;
  border-radius: 20px;
  overflow: hidden;
  background: var(--bg);
  color: var(--fg);
  box-shadow: 0 12px 60px rgba(0,0,0,.35);
}

dialog::backdrop {
  background: rgba(0,0,0,.5);
}

/* Modal Header */
.modal-head {
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

/* Modal Body Scrollable */
.modal-body {
  padding: 18px;
  max-height: 80vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* Modal paragraph fixes */
.modal-body p {
  margin: 0;
}

/* Modal Images  */
.modal-media img {
  display: block;
  width: 100%;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid var(--line);
}

/* Close Button */
.close {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--fg);
  padding: 8px 10px;
  border-radius: 12px;
  cursor: pointer;
}

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

/* Button utility */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--fg);
  transition: background var(--speed), transform var(--speed);
  cursor: pointer;
}

.btn:hover {
  background-color: rgba(255,255,255,0.05);
  transform: translateY(-1px);
}

/* Mobile input focus contrast */
.close:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--accent);
}