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

:root {
  --bg: #000;
  --bg1: #080808;
  --bg2: #0d0d0d;
  --bg3: #111;
  --card: #141414;
  --border: #1e1e1e;
  --border2: #2a2a2a;
  --text1: #f5f5f5;
  --text2: #8a8a8a;
  --text3: #444;
  --accent: #e8e8e8;
  --hl: #fff;
  --font: "Outfit", sans-serif;
  --mono: "JetBrains Mono", monospace;
  --sg: "Space Grotesk", sans-serif;
  --card-hover-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

:root.light {
  --bg: #f8f9fa;
  --bg1: #ffffff;
  --bg2: #f1f3f5;
  --bg3: #e9ecef;
  --card: #ffffff;
  --border: #dee2e6;
  --border2: #ced4da;
  --text1: #212529;
  --text2: #495057;
  --text3: #6c757d;
  --hl: #000000;
  --card-hover-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

body,
body * {
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text1);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
}

::-webkit-scrollbar {
  width: 3px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--border2);
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 36px;
}
@media (max-width: 640px) {
  .wrap {
    padding: 0 20px;
  }
}

/* ===== THEME SWITCH (circle from the centre of the screen) =====
   To light: a circle opens from the centre outwards.
   To dark:  a circle closes from the edges in to the centre. */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}
html[data-vt="to-light"]::view-transition-old(root) { z-index: 1; }
html[data-vt="to-light"]::view-transition-new(root) { z-index: 2; }
html[data-vt="to-dark"]::view-transition-new(root) { z-index: 1; }
html[data-vt="to-dark"]::view-transition-old(root) { z-index: 2; }

/* ===== NAV ===== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 16px 0;
  border-bottom: 1px solid transparent;
  transition: background .35s, border-color .35s, backdrop-filter .35s;
}
nav.scrolled {
  background: rgba(0, 0, 0, .9);
  backdrop-filter: blur(20px);
  border-color: var(--border);
}
.light nav.scrolled {
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(20px);
  border-color: var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--text1);
  text-decoration: none;
  letter-spacing: .05em;
}
.logo span {
  color: var(--text3);
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-menu a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text2);
  text-decoration: none;
  padding: 7px 13px;
  border-radius: 7px;
  transition: color .15s, background .15s;
  letter-spacing: .01em;
}
.nav-menu a:hover {
  color: var(--text1);
  background: rgba(255, 255, 255, .05);
}
.light .nav-menu a:hover {
  background: rgba(0, 0, 0, .04);
}
.nav-cta {
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity .15s, transform .15s;
  letter-spacing: .01em;
  background: var(--hl);
  color: #000;
}
.light .nav-cta {
  background: var(--hl);
  color: #fff;
}
.nav-cta:hover {
  opacity: .85;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--border2);
  border-radius: 8px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--text1);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
  transform-origin: center;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 57px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, .97);
  backdrop-filter: blur(24px);
  z-index: 199;
  flex-direction: column;
  padding: 32px 20px 40px;
  gap: 4px;
  border-top: 1px solid var(--border);
  overflow-y: auto;
}
.light .mobile-drawer {
  background: rgba(255, 255, 255, .97);
}
.mobile-drawer.open {
  display: flex;
}
.mobile-drawer a {
  font-size: 18px;
  font-weight: 600;
  color: var(--text2);
  text-decoration: none;
  padding: 14px 16px;
  border-radius: 10px;
  transition: color .15s, background .15s;
  border: 1px solid transparent;
}
.mobile-drawer a:hover {
  color: var(--text1);
  background: rgba(255, 255, 255, .04);
  border-color: var(--border2);
}
.light .mobile-drawer a:hover {
  background: rgba(0, 0, 0, .04);
}
.mobile-drawer .m-cta {
  margin-top: 16px;
  font-size: 16px;
  font-weight: 700;
  color: #000;
  background: var(--hl);
  padding: 15px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--hl);
}
.light .mobile-drawer .m-cta {
  color: #fff;
  background: var(--hl);
}
.mobile-drawer .m-cta:hover {
  opacity: .85;
}

@media (max-width: 760px) {
  .nav-menu {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
}

.theme-toggle {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border2);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text2);
  transition: all 0.2s ease;
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: var(--text1);
  border-color: var(--border2);
  background: rgba(255, 255, 255, 0.1);
}
.light .theme-toggle {
  background: rgba(0, 0, 0, 0.04);
}
.light .theme-toggle:hover {
  background: rgba(0, 0, 0, 0.08);
}

/* ===== PAGE HEADER ===== */
.page-header {
  padding-top: 110px;
  padding-bottom: 40px;
}
.page-header .sec-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 6px;
}
.page-header .sec-title {
  font-family: var(--sg);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -.025em;
  color: var(--hl);
  line-height: 1.1;
}
.page-header .sec-desc {
  font-size: 15px;
  color: var(--text2);
  max-width: 500px;
  margin-top: 6px;
}

/* ===== PROJECTS GRID ===== */
#projects-page {
  background: var(--bg1);
  padding: 20px 0 80px;
}
.proj-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.proj-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 28px;
  align-items: start;
  transition: all 0.25s ease;
}
.proj-card:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
  box-shadow: var(--card-hover-shadow);
}
@media (max-width: 760px) {
  .proj-card {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.proj-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.proj-badge {
  display: inline-flex;
  align-items: center;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--hl);
  color: #000;
  margin-bottom: 4px;
  width: fit-content;
}
.light .proj-badge {
  background: var(--hl);
  color: #fff;
}
.proj-type {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 4px;
}
.proj-title {
  font-family: var(--sg);
  font-size: 20px;
  font-weight: 700;
  color: var(--hl);
  letter-spacing: -.02em;
  margin-bottom: 6px;
}
.proj-desc {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.75;
  margin-bottom: 12px;
}
.proj-demo-note {
  font-size: 12px;
  color: var(--text2);
  line-height: 1.7;
  padding: 10px 14px;
  margin-bottom: 12px;
  border-left: 2px solid var(--border2);
}
.proj-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 12px;
}
.pstack {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border);
  color: var(--text3);
}
.proj-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.plink {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, .03);
  font-size: 11px;
  font-weight: 600;
  color: var(--text2);
  text-decoration: none;
  transition: border-color .15s, color .15s, background .15s;
}
.plink:hover {
  border-color: var(--border2);
  color: var(--text1);
  background: rgba(255, 255, 255, .06);
}
.light .plink:hover {
  background: rgba(0, 0, 0, .04);
}

/* ===== PHOTO AREA ===== */
.proj-photo-area {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.photo-container {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
  padding: 6px;
}
.photo-container img {
  max-width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 8px;
  display: block;
  width: 100%;
  height: auto;
}
.photo-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--text3);
  font-size: 13px;
  text-align: center;
  padding: 20px;
  width: 100%;
}
.photo-placeholder svg {
  width: 32px;
  height: 32px;
  stroke: var(--text3);
  stroke-width: 1.5;
  fill: none;
}

/* ===== FOOTER ===== */
footer {
  background: var(--bg1);
  border-top: 1px solid var(--border);
  padding: 28px 0;
}
.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-name {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--text2);
}
.footer-copy {
  font-size: 11px;
  color: var(--text3);
  margin-top: 3px;
}
.footer-links {
  display: flex;
  gap: 14px;
  align-items: center;
}
.footer-links a {
  font-size: 12px;
  color: var(--text3);
  text-decoration: none;
  transition: color .15s;
}
.footer-links a:hover {
  color: var(--text1);
}
.footer-socials {
  display: flex;
  gap: 8px;
}
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  border: 1px solid var(--border2);
  background: rgba(255, 255, 255, .03);
  color: var(--text2);
  text-decoration: none;
  transition: color .15s, border-color .15s, background .15s;
}
.social-link:hover {
  color: var(--text1);
  border-color: var(--text2);
  background: rgba(255, 255, 255, .07);
}
.light .social-link:hover {
  background: rgba(0, 0, 0, .07);
}
.social-link svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
}

/* ===== FADE ===== */
.fade {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .5s ease;
}
.fade.show {
  opacity: 1;
  transform: none;
}

@media (max-width: 480px) {
  .proj-card {
    padding: 18px;
  }
  .photo-container {
    min-height: 100px;
  }
}