/* ============================================================
   Ismail Khalid — portfolio
   Palette: white, light beige, black, dark grey
   Section accents: red (about), blue (projects), green (achievements)
   ============================================================ */

:root {
  --white: #ffffff;
  --beige: #f4efe4;
  --beige-deep: #ebe3d3;
  --black: #111110;
  --grey: #3c3b38;
  --grey-soft: #6b6962;
  --line: rgba(17, 17, 16, 0.12);

  --red: #b63a2f;
  --blue: #22558f;
  --green: #2c6e4b;

  --accent: var(--grey);
  --accent-tint: rgba(60, 59, 56, 0.08);

  --shell: 1120px;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(17, 17, 16, 0.05), 0 12px 28px -18px rgba(17, 17, 16, 0.35);

  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
}

[data-accent="red"]   { --accent: var(--red);   --accent-tint: rgba(182, 58, 47, 0.09); }
[data-accent="blue"]  { --accent: var(--blue);  --accent-tint: rgba(34, 85, 143, 0.09); }
[data-accent="green"] { --accent: var(--green); --accent-tint: rgba(44, 110, 75, 0.09); }

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--grey);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: inherit; }

img {
  max-width: 100%;
  display: block;
}

.shell {
  width: min(100% - 48px, var(--shell));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--black);
  color: var(--white);
  padding: 12px 18px;
  z-index: 100;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ------------------------------ header ------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-stuck {
  border-bottom-color: var(--line);
  box-shadow: 0 10px 30px -24px rgba(17, 17, 16, 0.6);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--black);
  color: var(--beige);
  font-family: var(--serif);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.brand-name {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 700;
  color: var(--black);
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  gap: 4px;
}

.site-nav a {
  position: relative;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--grey-soft);
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.site-nav a:hover { color: var(--black); background: var(--beige); }

.site-nav a.is-active {
  color: var(--black);
  background: var(--beige-deep);
}

/* ------------------------------ hero ------------------------------ */

.hero {
  position: relative;
  padding: clamp(72px, 12vw, 140px) 0 clamp(64px, 9vw, 110px);
  background:
    radial-gradient(900px 420px at 12% -10%, rgba(182, 58, 47, 0.07), transparent 60%),
    radial-gradient(760px 420px at 88% 0%, rgba(34, 85, 143, 0.08), transparent 62%),
    var(--beige);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.hero-inner { max-width: 820px; }

.hero-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--grey-soft);
  margin-bottom: 18px;
}

.hero-title {
  font-family: var(--serif);
  font-size: clamp(50px, 9.5vw, 104px);
  line-height: 0.96;
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--black);
  margin: 0 0 24px;
}

.hero-lede {
  font-size: clamp(18px, 2.2vw, 21px);
  line-height: 1.6;
  color: var(--grey);
  max-width: 60ch;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 56px;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.18s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-solid {
  background: var(--black);
  color: var(--beige);
  border: 1px solid var(--black);
}
.btn-solid:hover { background: var(--grey); }

.btn-ghost {
  background: transparent;
  color: var(--black);
  border: 1px solid rgba(17, 17, 16, 0.25);
}
.btn-ghost:hover { border-color: var(--black); background: rgba(255, 255, 255, 0.6); }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 8px 32px;
  margin: 0;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.hero-stats div { display: flex; flex-direction: column; gap: 4px; }

.hero-stats dt {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey-soft);
}

.hero-stats dd {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--black);
}

/* ------------------------------ sections ------------------------------ */

.section { padding: clamp(72px, 10vw, 120px) 0; }

.section-about { background: var(--white); }

.section-projects {
  background: var(--beige);
  border-block: 1px solid var(--line);
}

.section-achievements { background: var(--white); }

.section-head {
  max-width: 640px;
  margin-bottom: clamp(40px, 6vw, 64px);
}

.section-index {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  position: relative;
  font-family: var(--serif);
  font-size: clamp(36px, 5.5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--black);
  margin: 0 0 14px;
  padding-bottom: 16px;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 4px;
  border-radius: 2px;
  background: var(--accent);
}

.section-sub {
  font-size: 17px;
  color: var(--grey-soft);
  margin: 0;
}

.subsection-title {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0 0 20px;
}

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

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.card-title {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0 0 18px;
}

.tag {
  align-self: flex-start;
  width: fit-content;
  padding: 4px 11px;
  margin-bottom: 12px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ------------------------------ about ------------------------------ */

.about-grid {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: 28px;
}

.card-bio {
  background: var(--beige);
  border-color: transparent;
  padding: 36px;
}

.card-bio p { color: var(--grey); }

.subsection { grid-column: 1 / -1; }

.card-favorites {
  display: flex;
  flex-direction: column;
}

.fav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.fav-list li {
  flex: 1;
  display: grid;
  grid-template-columns: 20px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line);
}
.fav-list li:last-child { border-bottom: none; padding-bottom: 0; }
.fav-list li:first-child { padding-top: 0; }

.fav-icon {
  color: var(--accent);
  font-size: 13px;
  text-align: center;
}

.fav-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey-soft);
}

.fav-value {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--black);
}

.hobby-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.hobby { display: flex; flex-direction: column; }

.hobby-name {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 700;
  color: var(--black);
  margin: 0 0 10px;
}

.hobby-feature {
  grid-column: 1 / -1;
  background: var(--black);
  border-color: var(--black);
  color: rgba(244, 239, 228, 0.82);
}

.hobby-feature .hobby-name { color: var(--white); }
.hobby-feature .tag { background: var(--accent); color: var(--white); }

.timeline {
  list-style: none;
  counter-reset: step;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.timeline li {
  position: relative;
  padding-top: 18px;
  border-top: 2px solid rgba(244, 239, 228, 0.18);
}

.timeline li::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.timeline-when {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 6px;
}

.timeline-what {
  display: block;
  font-size: 15px;
  line-height: 1.5;
  color: rgba(244, 239, 228, 0.72);
}

.skill-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill {
  background: var(--beige);
  border-radius: var(--radius);
  padding: 24px 26px;
}

.skill-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.skill-name {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--black);
}

.skill-level {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.skill-bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(17, 17, 16, 0.1);
  overflow: hidden;
}

.skill-bar span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--accent);
  transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

.skill.is-filled .skill-bar span { width: var(--level); }

/* ------------------------------ projects ------------------------------ */

.project-list {
  display: grid;
  gap: 28px;
  margin-bottom: clamp(64px, 9vw, 96px);
}

.project {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.project:hover {
  transform: translateY(-3px);
  box-shadow: 0 1px 2px rgba(17, 17, 16, 0.05), 0 26px 48px -26px rgba(17, 17, 16, 0.45);
}

.project-media {
  display: grid;
  place-items: center;
  padding: 32px;
  background: var(--beige-deep);
  border-right: 1px solid var(--line);
}

.project-media img {
  width: 100%;
  max-width: 220px;
  height: auto;
  border-radius: 10px;
  transition: transform 0.3s ease;
}

.project-media:hover img { transform: scale(1.03); }

.project-body { padding: 32px 34px; }

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.chip {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent-tint);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.chip-role {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--grey-soft);
}

.project-title {
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0 0 14px;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, gap 0.2s ease;
}

.project-link:hover {
  border-bottom-color: currentColor;
  gap: 11px;
}

.wip-block {
  padding-top: clamp(40px, 6vw, 56px);
  border-top: 1px solid var(--line);
}

.wip-head {
  max-width: 560px;
  margin-bottom: 30px;
}

.wip-note {
  font-size: 15px;
  color: var(--grey-soft);
  margin: 0;
}

.wip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.wip {
  position: relative;
  display: flex;
  flex-direction: column;
  border-style: dashed;
  border-color: rgba(34, 85, 143, 0.3);
  box-shadow: none;
}

.tag-wip {
  align-self: flex-start;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}

.wip-title {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--black);
  margin: 0 0 4px;
}

.wip-role {
  font-size: 13px;
  font-weight: 600;
  color: var(--grey-soft);
  margin-bottom: 14px;
}

/* ------------------------------ achievements ------------------------------ */

.achievement-list {
  list-style: none;
  counter-reset: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.achievement {
  display: grid;
  grid-template-columns: 108px 1fr;
  align-items: center;
  gap: 28px;
  padding: 26px 30px;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  transition: background-color 0.22s ease, transform 0.22s ease;
}

.achievement:hover {
  background: var(--beige);
  transform: translateX(4px);
}

.achievement-figure {
  display: grid;
  place-items: center;
  height: 68px;
  border-radius: 12px;
  background: var(--accent-tint);
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.achievement-title {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--black);
  margin: 0 0 2px;
}

.achievement-kind {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.achievement-body p:last-child {
  font-size: 15px;
  color: var(--grey-soft);
}

/* ------------------------------ footer ------------------------------ */

.site-footer {
  padding: 56px 0;
  background: var(--black);
  color: rgba(244, 239, 228, 0.66);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
}

.footer-name {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--beige);
  margin: 0;
}

.footer-note {
  margin: 0;
  font-size: 15px;
}

.footer-top {
  margin-left: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--beige);
  text-decoration: none;
  border-bottom: 1px solid rgba(244, 239, 228, 0.3);
  padding-bottom: 2px;
}
.footer-top:hover { border-bottom-color: var(--beige); }

/* ------------------------------ reveal ------------------------------ */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ------------------------------ responsive ------------------------------ */

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .skill-list { grid-template-columns: 1fr; }
  .wip-grid { grid-template-columns: 1fr; }
  .project { grid-template-columns: 1fr; }
  .project-media {
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding: 28px;
  }
  .project-media img { max-width: 260px; }
  .timeline { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .shell { width: calc(100% - 36px); }
  .brand-name { display: none; }
  .site-nav a { padding: 8px 11px; font-size: 14px; }
  .hobby-grid { grid-template-columns: 1fr; }
  .card, .card-bio { padding: 24px; }
  .project-body { padding: 26px 24px; }
  .achievement {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .achievement-figure {
    width: 92px;
    height: 56px;
    font-size: 21px;
  }
  .achievement:hover { transform: none; }
  .footer-top { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}