/* Nii Yartey Gidiglo - Portfolio
   Palette: deep indigo ground, aurora teal and violet, warm amber highlight. */

:root {
  --bg: #f4f3fb;
  --bg-2: #e9e7f7;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #ffffff;
  --text: #1b1736;
  --text-soft: #565080;
  --accent: #0b8674;
  --accent-2: #6b46f0;
  --accent-3: #c9791a;
  --glow: rgba(107, 70, 240, 0.20);
  --border: rgba(27, 23, 54, 0.10);
  --shadow: 0 14px 40px rgba(27, 23, 54, 0.10);
  --radius: 18px;
  --maxw: 1180px;
  --nav-h: 76px;
  --aurora-1: rgba(25, 227, 192, 0.30);
  --aurora-2: rgba(124, 92, 255, 0.30);
  --aurora-3: rgba(255, 180, 87, 0.22);
  --grid-line: rgba(27, 23, 54, 0.045);
  --scene-opacity: .55;
}

:root[data-theme="dark"] {
  --bg: #0d0b1a;
  --bg-2: #14102a;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-solid: #1a1633;
  --text: #edeaff;
  --text-soft: #a8a2ce;
  --accent: #19e3c0;
  --accent-2: #9a7bff;
  --accent-3: #ffb457;
  --glow: rgba(25, 227, 192, 0.22);
  --border: rgba(255, 255, 255, 0.11);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --aurora-1: rgba(25, 227, 192, 0.22);
  --aurora-2: rgba(124, 92, 255, 0.28);
  --aurora-3: rgba(255, 180, 87, 0.14);
  --grid-line: rgba(255, 255, 255, 0.035);
  --scene-opacity: .75;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  position: relative;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Inter, -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
  transition: background .3s ease, color .3s ease;
}

/* ---------- Animated aurora background ---------- */
body::before {
  content: "";
  position: fixed;
  inset: -25%;
  z-index: -2;
  background:
    radial-gradient(38% 42% at 18% 22%, var(--aurora-1) 0%, transparent 62%),
    radial-gradient(42% 46% at 82% 18%, var(--aurora-2) 0%, transparent 64%),
    radial-gradient(46% 44% at 68% 82%, var(--aurora-3) 0%, transparent 66%),
    radial-gradient(40% 40% at 12% 78%, var(--aurora-2) 0%, transparent 62%);
  filter: blur(18px);
  animation: drift 26s ease-in-out infinite alternate;
}

/* Illustrated scene plus a fine grid, so the gradients read as a surface rather than a smear. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: var(--scene-opacity);
  background-image:
    url("../img/bg-scene.svg"),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: cover, 64px 64px, 64px 64px;
  background-position: center, 0 0, 0 0;
  background-repeat: no-repeat, repeat, repeat;
  background-attachment: fixed, fixed, fixed;
  mask-image: radial-gradient(circle at 50% 34%, #000 0%, rgba(0, 0, 0, .45) 62%, transparent 88%);
  -webkit-mask-image: radial-gradient(circle at 50% 34%, #000 0%, rgba(0, 0, 0, .45) 62%, transparent 88%);
}

@keyframes drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(3%, -2.5%, 0) scale(1.08); }
  100% { transform: translate3d(-2.5%, 2%, 0) scale(1.04); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-14px); }
}

img, svg { max-width: 100%; height: auto; }

a { color: var(--accent-2); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--accent); text-decoration: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- Scroll progress ---------- */
.progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  z-index: 100; transition: width .1s linear;
}

/* ---------- Navigation ---------- */
.nav {
  position: sticky; top: 0; z-index: 60;
  height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 22px;
  height: var(--nav-h); display: flex; align-items: center; justify-content: space-between;
}
.brand {
  font-size: 1.12rem; font-weight: 700; color: var(--text);
  letter-spacing: .3px; white-space: nowrap;
}
.brand span {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-weight: 700;
}

.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-links { display: flex; align-items: center; gap: 24px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  position: relative; color: var(--text-soft); font-weight: 500; font-size: .95rem; padding: 8px 2px;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 2px;
  border-radius: 2px; transform: scaleX(0); transform-origin: left;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: transform .28s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }

.theme-toggle {
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  width: 40px; height: 40px; border-radius: 50%; cursor: pointer; font-size: 1rem;
  display: inline-flex; align-items: center; justify-content: center;
  backdrop-filter: blur(10px); transition: all .25s ease;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); transform: rotate(20deg); }

.nav-toggle {
  display: none; background: none; border: 0; color: var(--text);
  font-size: 1.55rem; cursor: pointer; line-height: 1; padding: 4px 8px;
}

/* ---------- Buttons ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #fff; padding: 13px 26px; border-radius: 10px;
  font-weight: 600; font-size: .95rem; border: 0;
  box-shadow: 0 8px 24px var(--glow);
  transition: transform .22s ease, box-shadow .22s ease, filter .22s ease;
}
.btn:hover { transform: translateY(-3px); box-shadow: 0 14px 34px var(--glow); filter: brightness(1.08); color: #fff; }
.btn-outline {
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); box-shadow: none;
  backdrop-filter: blur(10px);
}
.btn-outline:hover { color: var(--text); border-color: var(--accent); box-shadow: 0 10px 26px var(--glow); }

/* ---------- Hero ---------- */
.hero { padding: 76px 0 62px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: center; }
.hero h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.6rem); line-height: 1.1; margin: 0 0 12px;
  background: linear-gradient(120deg, var(--text) 30%, var(--accent-2) 70%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .tagline {
  font-size: 1.18rem; margin: 0 0 18px; font-weight: 600; letter-spacing: .4px;
  color: var(--accent);
}
.hero p.lede { font-size: 1.05rem; color: var(--text-soft); max-width: 34em; margin: 0 0 28px; }
.skill-art img { animation: float 7s ease-in-out infinite; }

.socials { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.socials a {
  width: 46px; height: 46px; border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
  backdrop-filter: blur(10px);
  transition: transform .22s ease, border-color .22s ease, color .22s ease, box-shadow .22s ease;
}
.socials a:hover {
  transform: translateY(-5px); color: var(--accent);
  border-color: var(--accent); box-shadow: 0 12px 26px var(--glow);
}
.socials a svg { width: 20px; height: 20px; fill: currentColor; }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 66px 0; }
.section.alt { background: color-mix(in srgb, var(--bg-2) 62%, transparent); border-block: 1px solid var(--border); }
.section-head { text-align: center; margin-bottom: 46px; }
.section-head h2 {
  font-size: clamp(1.85rem, 3.6vw, 2.5rem); margin: 0 0 12px;
  background: linear-gradient(100deg, var(--text) 40%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-head p { color: var(--text-soft); max-width: 62ch; margin: 0 auto; }

.page-head { padding: 60px 0 6px; text-align: center; }
.page-head h1 {
  font-size: clamp(2rem, 4.4vw, 2.9rem); margin: 0 0 14px;
  background: linear-gradient(120deg, var(--text) 30%, var(--accent-2) 75%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.page-head p { color: var(--text-soft); max-width: 70ch; margin: 0 auto; }

/* ---------- What I Do ---------- */
.skill-row { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; align-items: center; margin-bottom: 72px; }
.skill-row:last-child { margin-bottom: 0; }
.skill-row.flip .skill-art { order: 2; }
.skill-row h3 { font-size: 1.65rem; margin: 0 0 14px; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.tag {
  background: var(--surface); color: var(--text-soft); font-size: .78rem; font-weight: 600;
  padding: 5px 12px; border-radius: 999px; border: 1px solid var(--border);
  backdrop-filter: blur(8px); transition: color .2s ease, border-color .2s ease;
}
.tag:hover { color: var(--accent); border-color: var(--accent); }
.bullets { list-style: none; padding: 0; margin: 0; }
.bullets li { position: relative; padding-left: 26px; margin-bottom: 11px; color: var(--text-soft); }
.bullets li::before {
  content: ""; position: absolute; left: 2px; top: 11px;
  width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
}

/* ---------- Cards ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  position: relative; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  transform: scaleX(0); transform-origin: left; transition: transform .35s ease;
}
.card:hover { transform: translateY(-7px); border-color: color-mix(in srgb, var(--accent) 45%, transparent); box-shadow: 0 22px 50px var(--glow); }
.card:hover::before { transform: scaleX(1); }
.card h3 { margin: 0 0 10px; font-size: 1.1rem; }
.card p { margin: 0 0 12px; color: var(--text-soft); font-size: .94rem; }
.card p:last-child { margin-bottom: 0; }
.card .meta { font-size: .81rem; color: var(--text-soft); }

/* ---------- Repository cards ---------- */
.repo {
  display: flex; flex-direction: column; gap: 10px;
  color: inherit;
}
.repo:hover { color: inherit; }
.repo-name { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 1.04rem; }
.repo-name svg { width: 18px; height: 18px; fill: var(--accent); flex: 0 0 18px; }
.repo p { flex: 1; }
.repo-foot { display: flex; align-items: center; gap: 14px; font-size: .8rem; color: var(--text-soft); }
.lang { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent-2); }
.repo-link { margin-left: auto; color: var(--accent); font-weight: 600; }
.repo:hover .repo-link { text-decoration: underline; }

/* ---------- Timeline ---------- */
.timeline { position: relative; margin: 0; padding: 0 0 0 34px; list-style: none; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(var(--accent), var(--accent-2), transparent);
}
.timeline > li { position: relative; margin-bottom: 26px; }
.timeline > li::before {
  content: ""; position: absolute; left: -32px; top: 26px;
  width: 14px; height: 14px; border-radius: 50%;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
}
.job {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 24px; box-shadow: var(--shadow);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  transition: transform .25s ease, border-color .25s ease;
}
.job:hover { transform: translateX(5px); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.job-top { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 8px; }
.job h3 { margin: 0; font-size: 1.13rem; }
.job .org { color: var(--accent); font-weight: 600; font-size: .93rem; }
.job .when {
  color: var(--text-soft); font-size: .82rem; text-align: right; white-space: nowrap;
  border: 1px solid var(--border); border-radius: 999px; padding: 2px 12px; height: fit-content;
}

/* ---------- Accordion ---------- */
.acc {
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  margin-bottom: 20px; background: var(--surface); backdrop-filter: blur(12px);
}
.acc-btn {
  width: 100%; text-align: left; color: #fff;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  border: 0; padding: 16px 22px; font-size: 1rem; font-weight: 600; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; font-family: inherit;
  transition: filter .2s ease;
}
.acc-btn:hover { filter: brightness(1.08); }
.acc-btn .chev { transition: transform .28s ease; }
.acc-btn[aria-expanded="true"] .chev { transform: rotate(180deg); }
.acc-body { padding: 26px 22px; }
.acc-body[hidden] { display: none; }

/* ---------- Education ---------- */
.edu {
  display: flex; gap: 22px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow); margin-bottom: 22px;
  backdrop-filter: blur(14px); transition: transform .25s ease, border-color .25s ease;
}
.edu:hover { transform: translateY(-5px); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.edu-badge {
  flex: 0 0 66px; height: 66px; border-radius: 20px; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.05rem;
  box-shadow: 0 10px 24px var(--glow);
}

/* ---------- Certifications ---------- */
.cert { display: flex; gap: 14px; align-items: flex-start; }
.cert-code {
  flex: 0 0 auto; color: #fff; font-size: .72rem; font-weight: 700;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  padding: 5px 10px; border-radius: 7px; letter-spacing: .5px;
}
.cert strong { display: block; font-size: .96rem; }
.cert span { font-size: .83rem; color: var(--text-soft); }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat {
  text-align: center; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 16px; box-shadow: var(--shadow);
  backdrop-filter: blur(14px); transition: transform .25s ease, border-color .25s ease;
}
.stat:hover { transform: translateY(-6px); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.stat b {
  display: block; font-size: 2.3rem; line-height: 1.1;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat span { font-size: .86rem; color: var(--text-soft); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: center; }
.contact-list { list-style: none; padding: 0; margin: 0 0 26px; }
.contact-list li { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.contact-list svg { width: 20px; height: 20px; fill: var(--accent); flex: 0 0 20px; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border); padding: 30px 0; text-align: center;
  color: var(--text-soft); font-size: .88rem;
}

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid, .skill-row, .contact-grid { grid-template-columns: 1fr; }
  .skill-row.flip .skill-art { order: 0; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border);
    padding: 10px 22px; display: none; box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; width: 100%; padding: 13px 0; border-bottom: 1px solid var(--border); }
}
@media (max-width: 560px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .job .when { text-align: left; }
  .hero { padding: 48px 0 40px; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  body::before, .skill-art img { animation: none; }
  html { scroll-behavior: auto; }
  .card:hover, .job:hover, .stat:hover, .edu:hover, .btn:hover, .socials a:hover { transform: none; }
}

/* ---------- Certificate links ---------- */
.cert-links { display: flex; gap: 14px; margin-top: 6px; }
.cert-links a { font-size: .82rem; font-weight: 600; color: var(--accent); }
.cert-links a:hover { text-decoration: underline; }

/* ---------- Contact panel ---------- */
.contact-card {
  padding: 34px 32px;
  border-radius: calc(var(--radius) + 4px);
}
.contact-card::before { transform: scaleX(1); }
.contact-card h1 {
  font-size: clamp(1.9rem, 4vw, 2.6rem); margin: 0 0 14px;
  background: linear-gradient(120deg, var(--text) 30%, var(--accent-2) 75%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.contact-card .lede { color: var(--text-soft); font-size: 1.03rem; margin: 0 0 26px; }
.contact-list li { color: var(--text); }
.contact-list a { color: var(--text); font-weight: 500; }
.contact-list a:hover { color: var(--accent); }

/* ---------- Admin ---------- */
.admin-wrap { max-width: 860px; }
.admin-wrap .card { margin-bottom: 24px; }
.admin-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.admin-head h3 { margin: 0; }
.admin-form { display: flex; flex-direction: column; gap: 18px; margin-top: 18px; }
.admin-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.admin-form label {
  display: flex; flex-direction: column; gap: 7px;
  font-size: .86rem; font-weight: 600; color: var(--text-soft);
}
.admin-form .req { display: none; }
.admin-form input, .admin-form select {
  font-family: inherit; font-size: .95rem; font-weight: 400;
  padding: 11px 14px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--surface-solid); color: var(--text);
}
.admin-form input:focus, .admin-form select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--glow);
}
.admin-form input[type="file"] { padding: 9px; }
.admin-form button { align-self: flex-start; }

.admin-list { list-style: none; padding: 0; margin: 18px 0 0; }
.admin-list li {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 14px 0; border-bottom: 1px solid var(--border);
}
.admin-list li:last-child { border-bottom: 0; }
.admin-list li > div { flex: 1; min-width: 240px; display: flex; flex-direction: column; }
.admin-list strong { font-size: .97rem; }
.admin-list span { font-size: .82rem; color: var(--text-soft); }
.admin-list a { font-size: .8rem; }
.admin-list .btn { padding: 8px 16px; font-size: .84rem; }
.danger:hover { border-color: #e2557a; color: #e2557a; box-shadow: 0 8px 22px rgba(226, 85, 122, .22); }

.admin-msg { margin: 0; font-size: .92rem; min-height: 1.4em; }
.admin-msg.ok { color: var(--accent); }
.admin-msg.error { color: #e2557a; }

@media (max-width: 620px) {
  .admin-grid { grid-template-columns: 1fr; }
}