/* ============================================================
   Zohaib Ali Mughal — Portfolio
   Design tokens & components (dark theme, deck-derived)
   ============================================================ */

:root {
  /* Surfaces */
  --bg: #0C0C0F;
  --bg-2: #111118;
  --bg-3: #161620;
  --line: #232328;
  --line-2: #2E2E36;

  /* Text */
  --text: #FFFFFF;
  --text-2: #B7B7BE;
  --text-3: #8A8A92;
  --text-4: #6E6E76;

  /* Project accents */
  --c-hyss: #9D5BFF;
  --c-conek: #16BFD3;
  --c-sportefy: #9F63C9;
  --c-etg: #008BE9;
  --c-plexor: #8DC63F;

  /* Page accent (overridden per case study) */
  --accent: #9D5BFF;
  --accent-soft: color-mix(in srgb, var(--accent) 14%, transparent);

  /* Type */
  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'Manrope', sans-serif;
  --font-mono: 'Space Mono', monospace;

  --container: 1160px;
  --pad: clamp(20px, 5vw, 48px);
}

[data-accent="hyss"]     { --accent: var(--c-hyss); }
[data-accent="conek"]    { --accent: var(--c-conek); }
[data-accent="sportefy"] { --accent: var(--c-sportefy); }
[data-accent="etg"]      { --accent: var(--c-etg); }
[data-accent="plexor"]   { --accent: var(--c-plexor); }

/* ---------- Base ---------- */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0;
}

h1 { font-size: clamp(44px, 7.5vw, 96px); }
h2 { font-size: clamp(32px, 4.5vw, 54px); }
h3 { font-size: clamp(21px, 2.4vw, 27px); letter-spacing: -0.02em; }

p { margin: 0; }

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad);
}

section { padding-block: clamp(72px, 9vw, 130px); }

::selection { background: var(--accent); color: #0C0C0F; }

/* ---------- Shared atoms ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
}

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

.lede {
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.55;
  color: var(--text-2);
  max-width: 46em;
}

.section-head { display: grid; gap: 18px; margin-bottom: clamp(40px, 6vw, 72px); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 16px;
  padding: 14px 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
  cursor: pointer;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary { background: var(--text); color: var(--bg); }
.btn-primary:hover { background: #E8E8EC; }

.btn-ghost { border-color: var(--line-2); color: var(--text); }
.btn-ghost:hover { border-color: var(--text-3); }

.chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: -0.01em;
  background: var(--accent-soft);
  color: color-mix(in srgb, var(--accent) 78%, #ffffff);
  white-space: nowrap;
}

.chips { display: flex; flex-wrap: wrap; gap: 9px; }

.metric { display: flex; flex-direction: column; gap: 8px; }

.metric .num {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(36px, 4.6vw, 54px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.metric .num small { font-size: 0.62em; }

.metric .cap {
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-3);
}

.metrics { display: flex; gap: clamp(28px, 5vw, 64px); flex-wrap: wrap; }

.feat { display: flex; gap: 15px; align-items: flex-start; }

.feat .dot {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 8px;
  background: var(--accent);
  transform: rotate(45deg);
  border-radius: 2px;
}

.feat span:last-child { color: var(--text-2); line-height: 1.5; }

.dot-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-2);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 9px 18px;
}

.dot-badge::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #4ADE80;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5);
  animation: pulse 2.4s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.45); }
  70% { box-shadow: 0 0 0 9px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

/* ---------- Nav ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad);
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.nav-brand .mono { font-family: var(--font-mono); font-size: 12px; color: var(--text-3); letter-spacing: 0.1em; }

.nav-links { display: flex; align-items: center; gap: 30px; }

.nav-links a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  transition: color 0.15s ease;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  color: var(--text);
  padding: 8px 10px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg-2);
    border-bottom: 1px solid var(--line);
    padding: 8px var(--pad) 16px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav-links a:last-child { border-bottom: none; }
}

/* ---------- Hero (home) ---------- */

.hero { padding-top: clamp(150px, 20vh, 220px); padding-bottom: clamp(64px, 8vw, 110px); }

.hero .container { display: grid; gap: 30px; }

.hero h1 { max-width: 11em; }

.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; margin-top: 8px; }

/* ---------- Proof strip ---------- */

.proof {
  border-block: 1px solid var(--line);
  background: var(--bg-2);
  padding-block: clamp(36px, 5vw, 56px);
}

.proof .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(20px, 4vw, 48px);
}

@media (max-width: 860px) { .proof .container { grid-template-columns: repeat(2, 1fr); } }

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

.work-list { display: grid; gap: clamp(24px, 3.5vw, 40px); }

.work-card {
  --accent-soft: color-mix(in srgb, var(--accent) 14%, transparent);
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: clamp(28px, 4vw, 56px);
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.work-card:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); transform: translateY(-3px); }

.work-card .glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(90% 90% at 85% 10%, var(--accent-soft) 0%, transparent 60%);
  pointer-events: none;
}

.work-info { position: relative; display: grid; gap: 20px; }

.work-index {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
}

.work-index .n { color: var(--accent); }
.work-index .sep { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }

.work-logo { height: 30px; width: auto; align-self: start; }

.work-info p { color: var(--text-2); line-height: 1.55; }

.work-metrics { display: flex; gap: clamp(20px, 3vw, 40px); flex-wrap: wrap; }

.work-metrics .num { font-size: clamp(26px, 3vw, 34px); }

.work-link {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.work-media { position: relative; min-width: 0; }

.work-media img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 30px 60px color-mix(in srgb, var(--accent) 28%, transparent));
}

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

/* ---------- Skills ---------- */

.stackrow {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 18px;
  align-items: baseline;
  padding-block: 22px;
  border-top: 1px solid var(--line);
}

.stackrow:last-child { border-bottom: 1px solid var(--line); }

.stacklabel {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

@media (max-width: 640px) { .stackrow { grid-template-columns: 1fr; gap: 12px; } }

/* ---------- About ---------- */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: clamp(40px, 6vw, 90px);
  align-items: start;
}

@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }

.about-bio { display: grid; gap: 20px; color: var(--text-2); font-size: 18px; line-height: 1.65; }

.timeline { display: grid; }

.timeline-item {
  display: grid;
  gap: 6px;
  padding: 20px 0 20px 26px;
  border-left: 1px solid var(--line-2);
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 28px;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  transform: rotate(45deg);
  background: var(--accent);
}

.timeline-item .when {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.timeline-item .what { font-family: var(--font-head); font-weight: 600; font-size: 18px; letter-spacing: -0.01em; }

.timeline-item .how { color: var(--text-3); font-size: 15px; }

/* ---------- Contact ---------- */

.contact { text-align: left; border-top: 1px solid var(--line); }

.contact h2 { font-size: clamp(44px, 7vw, 92px); letter-spacing: -0.035em; }

.contact-row {
  margin-top: clamp(32px, 5vw, 56px);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.contact-meta {
  margin-top: clamp(36px, 5vw, 60px);
  padding-top: 34px;
  border-top: 1px solid var(--line);
  display: flex;
  gap: clamp(24px, 5vw, 64px);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 14px;
}

.contact-meta a { color: var(--text-2); transition: color 0.15s ease; }
.contact-meta a:hover { color: var(--accent); }

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--line);
  padding-block: 30px;
}

.footer-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-4);
}

.footer-inner a:hover { color: var(--text-2); }

.footer-dots { display: flex; gap: 8px; align-items: center; }
.footer-dots span { width: 10px; height: 10px; border-radius: 50%; }

/* ---------- Case study ---------- */

.cs-hero { padding-top: clamp(140px, 18vh, 200px); padding-bottom: 0; }

.cs-hero .container { display: grid; gap: 26px; }

.cs-hero .work-logo { height: 36px; }

.cs-hero h1 { font-size: clamp(38px, 6vw, 78px); max-width: 13em; }

.cs-meta {
  display: flex;
  gap: clamp(24px, 4vw, 56px);
  flex-wrap: wrap;
  margin-top: 12px;
  padding-block: 26px;
  border-block: 1px solid var(--line);
}

.cs-meta-item { display: grid; gap: 8px; }

.cs-meta-item .k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}

.cs-meta-item .v { font-family: var(--font-head); font-weight: 500; font-size: 16px; }

.cs-hero-media { margin-top: clamp(36px, 5vw, 64px); }

.cs-hero-media img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 40px 80px color-mix(in srgb, var(--accent) 26%, transparent));
}

/* Architecture flow */

.flow {
  display: flex;
  align-items: stretch;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: clamp(36px, 5vw, 56px);
}

.fnode {
  flex: 1 1 150px;
  min-width: 150px;
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: 14px;
  padding: 18px 18px 20px;
  display: grid;
  gap: 8px;
  align-content: start;
}

.fnode.hot { border-color: color-mix(in srgb, var(--accent) 60%, var(--line-2)); box-shadow: 0 14px 34px var(--accent-soft); }

.fnode .t { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 600; font-size: 16px; }

.fnode .t::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: var(--accent);
  flex: none;
}

.fnode .s { font-family: var(--font-mono); font-size: 12px; color: var(--text-3); }

.farrow {
  flex: none;
  align-self: center;
  font-family: var(--font-head);
  font-size: 22px;
  color: var(--accent);
}

@media (max-width: 900px) {
  .flow { flex-direction: column; }
  .farrow { transform: rotate(90deg); align-self: flex-start; margin-left: 24px; }
}

.arch-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(36px, 5vw, 72px);
}

@media (max-width: 860px) { .arch-cols { grid-template-columns: 1fr; } }

.arch-col-label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 22px;
}

.decision { display: flex; gap: 16px; padding-block: 14px; }

.decision .n { font-family: var(--font-mono); font-size: 14px; color: var(--accent); flex: none; padding-top: 2px; }

.decision span:last-child { color: var(--text-2); line-height: 1.5; }

/* Screenshot frames */

.frame {
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
}

.frame-bar {
  height: 34px;
  background: var(--bg-2);
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
}

.frame-bar i { width: 10px; height: 10px; border-radius: 50%; }
.frame-bar i:nth-child(1) { background: #FF5F57; }
.frame-bar i:nth-child(2) { background: #FEBC2E; }
.frame-bar i:nth-child(3) { background: #28C840; }

.phone {
  border-radius: 34px;
  background: #050507;
  padding: 10px;
  border: 1px solid var(--line-2);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
}

.phone img { border-radius: 24px; }

.shot-cap {
  margin-top: 14px;
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 15px;
  color: var(--text-2);
}

.shot-cap::before { content: "—"; color: var(--accent); flex: none; }

/* Walkthrough groups */

.walk-group { margin-top: clamp(40px, 6vw, 64px); }

.walk-group-label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.walk-group-label::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.shots { display: grid; gap: clamp(24px, 3.5vw, 40px); grid-template-columns: repeat(2, 1fr); align-items: start; }
.shots.cols-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 820px) {
  .shots, .shots.cols-3 { grid-template-columns: 1fr; }
  .shots.phones { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) { .shots.phones { grid-template-columns: 1fr; justify-items: center; } .shots.phones .shot { max-width: 320px; } }

/* Impact band */

.impact {
  background: var(--bg-2);
  border-block: 1px solid var(--line);
}

.impact-grid {
  display: grid;
  grid-template-columns: minmax(0, 11fr) minmax(0, 9fr);
  gap: clamp(36px, 6vw, 80px);
  align-items: center;
}

.impact .metrics { gap: clamp(22px, 3vw, 40px); }

@media (max-width: 860px) { .impact-grid { grid-template-columns: 1fr; } }

.impact p { color: var(--text-2); font-size: 18px; line-height: 1.65; }

/* Next project */

.next-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: clamp(28px, 4vw, 44px);
  background: var(--bg-2);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.next-card:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); transform: translateY(-3px); }

.next-card .k { font-family: var(--font-mono); font-size: 12.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-3); margin-bottom: 10px; }

.next-card .arrow { font-family: var(--font-head); font-size: 34px; color: var(--accent); }

/* ---------- Lenis smooth scroll ---------- */

html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

/* ---------- Social icon buttons ---------- */

.socials { display: flex; gap: 12px; align-items: center; }

.icon-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  display: grid;
  place-items: center;
  color: var(--text-2);
  transition: transform 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.icon-btn:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.icon-btn svg { width: 20px; height: 20px; fill: currentColor; display: block; }

/* ---------- Reveal on scroll ---------- */

.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .dot-badge::before { animation: none; }
}