/* =========================================================
   Aatif Junaid Mulla — personal site
   "Dusty Beige + Sky Glass": warm beige paper, Apple-style
   frosted glass tiles tinted sky blue, Playfair + Inter,
   subtle motion and tiny metric animations.
   ========================================================= */

:root {
  --paper: #EBE3D3;          /* dusty beige */
  --paper-2: #E2D9C6;
  --ink: #2a2723;            /* warm charcoal */
  --ink-soft: #6c655a;

  --blue: #2f7fb3;           /* readable primary blue */
  --blue-deep: #225e86;
  --sky: #8fcdee;            /* sky blue, for glows and highlights */
  --sky-bright: #bfe6fb;

  --line: rgba(42, 39, 35, 0.10);
  --line-strong: rgba(42, 39, 35, 0.18);

  /* glass tiles, faintly sky-tinted */
  --tile-bg: rgba(247, 251, 254, 0.50);
  --tile-bg-hover: rgba(250, 253, 255, 0.68);
  --tile-border: rgba(255, 255, 255, 0.85);
  --tile-shadow: 0 14px 44px rgba(50, 70, 90, 0.10);
  --tile-shadow-hover: 0 26px 64px rgba(45, 110, 160, 0.22);
  --tile-inset: inset 0 1px 0 rgba(255, 255, 255, 0.75), inset 0 0 0 1px rgba(143, 205, 238, 0.12);

  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --maxw: 1080px;
  --maxw-narrow: 760px;
  --gutter: clamp(1.25rem, 5vw, 3.5rem);
  --radius: 22px;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
h1, h2, h3, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* soft drifting color field (beige + sky), so the glass has depth to blur */
body::before {
  content: "";
  position: fixed;
  inset: -25vmax;
  z-index: -1;
  background:
    radial-gradient(38vmax 38vmax at 12% 6%,  rgba(143, 205, 238, 0.45), transparent 60%),
    radial-gradient(34vmax 34vmax at 90% 12%, rgba(206, 174, 134, 0.42), transparent 60%),
    radial-gradient(44vmax 44vmax at 78% 86%, rgba(143, 205, 238, 0.38), transparent 62%),
    radial-gradient(32vmax 32vmax at 18% 92%, rgba(214, 198, 168, 0.40), transparent 62%);
  filter: blur(10px);
  animation: drift 34s ease-in-out infinite alternate;
}
@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(3%, -2.5%, 0) scale(1.07); }
}

/* ---------- frosted glass tile ---------- */
.tile {
  background: var(--tile-bg);
  -webkit-backdrop-filter: blur(22px) saturate(165%);
  backdrop-filter: blur(22px) saturate(165%);
  border: 1px solid var(--tile-border);
  border-radius: var(--radius);
  box-shadow: var(--tile-shadow), var(--tile-inset);
  transition: transform 0.45s cubic-bezier(0.2, 0.7, 0.2, 1),
              box-shadow 0.45s cubic-bezier(0.2, 0.7, 0.2, 1),
              background 0.45s ease, border-color 0.45s ease;
}
.tile:hover {
  transform: translateY(-6px);
  background: var(--tile-bg-hover);
  box-shadow: var(--tile-shadow-hover), var(--tile-inset);
  border-color: #ffffff;
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem var(--gutter);
  background: rgba(235, 227, 211, 0.6);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid var(--line);
}
.wordmark { font-size: 0.98rem; letter-spacing: -0.01em; font-weight: 700; color: var(--ink); }
.wordmark:hover { color: var(--blue); }
.site-nav { display: flex; gap: clamp(0.8rem, 2.4vw, 1.7rem); }
.site-nav a {
  font-size: 0.86rem; font-weight: 500; color: var(--ink-soft);
  padding-bottom: 3px; border-bottom: 1.5px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.site-nav a:hover { color: var(--ink); border-color: var(--sky); }

/* ---------- shared layout ---------- */
.hero, .band, .section, .site-footer { padding-left: var(--gutter); padding-right: var(--gutter); }

/* ---------- hero ---------- */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-top: clamp(3.2rem, 8vw, 6rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}
.kicker {
  font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--blue-deep); font-weight: 600; margin-bottom: 1.1rem;
}
.hero__name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(3rem, 9vw, 6.2rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--blue-deep) 0%, var(--blue) 38%, var(--sky) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.7rem;
}
.hero__tagline {
  font-size: clamp(0.95rem, 2.2vw, 1.15rem);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin-bottom: 1.6rem;
}
.hero__statement {
  font-family: var(--serif);
  font-weight: 500;
  font-style: italic;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  line-height: 1.22;
  color: var(--ink);
  max-width: 24ch;
  margin-bottom: 1.6rem;
}
.hero__lead {
  font-size: clamp(1.02rem, 2.1vw, 1.22rem);
  line-height: 1.62; color: var(--ink-soft);
  max-width: 60ch; margin-bottom: 2.2rem;
}

/* buttons */
.hero__actions, .contact__actions, .samples__cta { display: flex; flex-wrap: wrap; gap: 0.8rem; }
.btn {
  font-family: var(--sans); font-size: 0.92rem; font-weight: 500; color: var(--ink);
  padding: 0.72rem 1.4rem; border: 1px solid var(--line-strong); border-radius: 999px;
  background: rgba(255, 255, 255, 0.45);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(45, 110, 160, 0.20); }
.btn--primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn--primary:hover { background: var(--blue-deep); border-color: var(--blue-deep); }
.btn:not(.btn--primary):hover { border-color: var(--blue); color: var(--blue-deep); }

/* ---------- anchor band ---------- */
.band { max-width: var(--maxw-narrow); margin: 0 auto; padding: clamp(2.5rem, 6vw, 4.5rem) var(--gutter); text-align: center; }
.band__text {
  font-family: var(--serif); font-weight: 500; font-style: italic;
  font-size: clamp(1.45rem, 3.4vw, 2.2rem); line-height: 1.36; color: var(--blue-deep);
}

/* ---------- section scaffold ---------- */
.section { max-width: var(--maxw); margin: 0 auto; padding-top: clamp(3rem, 7vw, 5.5rem); padding-bottom: clamp(3rem, 7vw, 5.5rem); }
.section-head { margin-bottom: clamp(1.8rem, 4vw, 2.8rem); }
.eyebrow {
  display: block; font-size: 0.76rem; letter-spacing: 0.18em; text-transform: uppercase;
  font-weight: 600; color: var(--blue-deep); margin-bottom: 0.7rem;
}
.section-title {
  font-family: var(--serif); font-weight: 600; font-size: clamp(1.9rem, 4.4vw, 3rem);
  line-height: 1.1; letter-spacing: -0.01em; max-width: 22ch;
}

/* ---------- experience timeline ---------- */
.timeline { position: relative; padding-left: 2px; }
.timeline::before {
  content: ""; position: absolute; left: 9px; top: 12px; bottom: 12px; width: 2px;
  background: linear-gradient(to bottom, transparent, var(--sky) 8%, var(--blue) 50%, var(--sky) 92%, transparent);
  opacity: 0.55;
}
.tl-item { position: relative; padding-left: 48px; margin-bottom: 1.4rem; }
.tl-item:last-child { margin-bottom: 0; }
.tl-dot {
  position: absolute; left: 1px; top: 28px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--paper); border: 2px solid var(--blue);
  transition: background 0.5s ease, box-shadow 0.5s ease, transform 0.5s ease;
}
.tl-item.is-visible .tl-dot {
  background: var(--blue); box-shadow: 0 0 0 6px rgba(143, 205, 238, 0.35); transform: scale(1.05);
}
.tl-card { padding: clamp(1.4rem, 3vw, 2rem); }

/* timeline head: logo + title block */
.tl-head { display: flex; align-items: flex-start; gap: 0.9rem; margin-bottom: 0.9rem; }
.tl-logo {
  flex: 0 0 auto; width: 46px; height: 46px; border-radius: 12px; position: relative;
  background: #fff; border: 1px solid var(--line); overflow: hidden;
  display: grid; place-items: center; box-shadow: 0 4px 12px rgba(50, 70, 90, 0.10);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.tl-logo::before {
  content: attr(data-mono); position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--serif); font-weight: 600; font-size: 1.3rem; color: var(--blue-deep);
}
.tl-logo img { position: relative; width: 28px; height: 28px; object-fit: contain; }
a.tl-logo:hover { transform: translateY(-2px) scale(1.04); box-shadow: 0 8px 20px rgba(45, 110, 160, 0.25); }
.tl-headtext { min-width: 0; }
.tl-date {
  font-size: 0.76rem; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 600;
  color: var(--blue-deep); margin-bottom: 0.3rem;
}
.tl-role { font-family: var(--serif); font-weight: 600; font-size: clamp(1.35rem, 3vw, 1.85rem); line-height: 1.12; }
.tl-org { font-size: 0.92rem; color: var(--ink-soft); margin-top: 0.25rem; }
.tl-link { color: var(--blue); border-bottom: 1.5px solid var(--sky); transition: color 0.2s ease; }
.tl-link:hover { color: var(--blue-deep); }
.tl-desc {
  font-size: 0.92rem; color: var(--ink-soft); font-style: italic;
  padding: 0.7rem 0.9rem; margin-bottom: 1.1rem; max-width: 70ch;
  background: rgba(143, 205, 238, 0.10); border-left: 2px solid var(--sky); border-radius: 0 10px 10px 0;
}
.tl-lead { font-size: 1.05rem; line-height: 1.6; margin-bottom: 1.1rem; max-width: 64ch; }
.tl-points { display: grid; gap: 0.7rem; margin-bottom: 1.4rem; }
.tl-points li { position: relative; padding-left: 1.1rem; color: var(--ink-soft); max-width: 66ch; }
.tl-points li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 6px; height: 6px; border-radius: 50%; background: var(--sky); box-shadow: 0 0 0 2px rgba(47,127,179,0.25); }
.tl-points strong { color: var(--ink); font-weight: 600; }

/* metrics with tiny animated icons */
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; margin-bottom: 0.4rem; }
.metric {
  position: relative; background: rgba(255, 255, 255, 0.5); border: 1px solid var(--line);
  border-radius: 16px; padding: 1rem 1rem 0.95rem; overflow: hidden;
  transition: transform 0.3s ease, background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.metric:hover { transform: translateY(-4px); background: rgba(255, 255, 255, 0.82); box-shadow: 0 12px 26px rgba(45, 110, 160, 0.18); border-color: var(--sky); }
.metric .mi {
  position: absolute; top: 0.7rem; right: 0.7rem; width: 20px; height: 20px; color: var(--blue);
  opacity: 0.92;
}
.metric .mi svg { width: 20px; height: 20px; display: block; }
.metric__num {
  display: block; font-family: var(--serif); font-size: clamp(1.5rem, 3vw, 2rem); line-height: 1;
  font-weight: 600; color: var(--blue-deep); margin-bottom: 0.35rem; padding-right: 1.6rem;
}
.metric__label { font-size: 0.7rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-soft); line-height: 1.3; }

/* social-proof quote */
.quote { margin: 1.6rem 0 0; padding: 1.3rem 1.5rem; background: rgba(47, 127, 179, 0.09); border-left: 3px solid var(--blue); border-radius: 0 14px 14px 0; }
.quote__text { font-family: var(--serif); font-style: italic; font-size: clamp(1.15rem, 2.4vw, 1.45rem); line-height: 1.34; margin-bottom: 0.8rem; }
.quote__cite { display: flex; flex-direction: column; gap: 0.1rem; }
.quote__name { font-weight: 600; font-size: 0.95rem; }
.quote__role { font-size: 0.78rem; color: var(--ink-soft); }

/* ---------- education ---------- */
.edu-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; margin-bottom: 1.2rem; }
.edu-card { padding: 1.6rem 1.6rem; }
.edu-card__deg { font-family: var(--serif); font-weight: 600; font-size: 1.3rem; line-height: 1.15; }
.edu-card__school { font-size: 0.86rem; color: var(--blue-deep); font-weight: 600; margin: 0.4rem 0 0.8rem; }
.edu-card__note { color: var(--ink-soft); font-size: 0.96rem; }

.tools-tile { padding: 1.8rem; }
.tools-tile .eyebrow { margin-bottom: 1.4rem; }
.tool-groups { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem; }
.tool-group__name { display: block; font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); font-weight: 600; margin-bottom: 0.8rem; }
.tools { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tools li {
  font-size: 0.8rem; font-weight: 500; color: var(--ink);
  background: rgba(255, 255, 255, 0.55); border: 1px solid var(--line); border-radius: 999px; padding: 0.35rem 0.75rem;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}
.tools li:hover { border-color: var(--blue); color: var(--blue-deep); background: rgba(143,205,238,0.18); transform: translateY(-1px); }

/* ---------- work samples ---------- */
.sample-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; margin-bottom: 1.8rem; }
.sample { padding: 1.7rem 1.7rem; }
.sample__meta { font-size: 0.72rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--blue-deep); font-weight: 600; margin-bottom: 0.7rem; }
.sample__title { font-family: var(--serif); font-weight: 600; font-size: 1.5rem; line-height: 1.12; margin-bottom: 0.7rem; }
.sample__body { color: var(--ink-soft); font-size: 0.96rem; }
.samples__cta { justify-content: center; }

/* ---------- frameworks ---------- */
.framework-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
.framework { padding: 1.8rem 1.8rem; }
.framework__title { font-family: var(--serif); font-weight: 600; font-size: 1.35rem; line-height: 1.15; margin-bottom: 0.6rem; }
.framework p { color: var(--ink-soft); font-size: 0.98rem; }

/* ---------- contact ---------- */
.contact-tile { padding: clamp(1.8rem, 4vw, 2.8rem); }
.contact__lead { font-family: var(--serif); font-weight: 500; font-size: clamp(1.3rem, 2.8vw, 1.85rem); line-height: 1.35; max-width: 32ch; margin-bottom: 2rem; }
.contact-list { display: grid; gap: 0; margin-bottom: 2rem; max-width: 44rem; }
.contact-list li { display: grid; grid-template-columns: 120px 1fr; gap: 1rem; padding: 0.95rem 0; border-top: 1px solid var(--line); align-items: baseline; }
.contact-list li:last-child { border-bottom: 1px solid var(--line); }
.contact__key { font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); font-weight: 600; }
.contact-list a { color: var(--blue); border-bottom: 1.5px solid var(--sky); padding-bottom: 1px; transition: color 0.2s ease; }
.contact-list a:hover { color: var(--blue-deep); }

/* ---------- footer ---------- */
.site-footer {
  max-width: var(--maxw); margin: 0 auto; display: flex; justify-content: space-between; gap: 1rem;
  padding-top: 2.5rem; padding-bottom: 2.5rem; border-top: 1px solid var(--line);
  font-size: 0.82rem; color: var(--ink-soft);
}

/* ---------- reveal / fade-in-up + light stagger ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.75s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.75s cubic-bezier(0.2, 0.7, 0.2, 1); }
.reveal.is-visible { opacity: 1; transform: none; }
.edu-grid .reveal:nth-child(2), .sample-grid .reveal:nth-child(2), .framework-grid .reveal:nth-child(2) { transition-delay: 0.08s; }
.edu-grid .reveal:nth-child(3), .sample-grid .reveal:nth-child(3), .framework-grid .reveal:nth-child(3) { transition-delay: 0.16s; }
.framework-grid .reveal:nth-child(4) { transition-delay: 0.24s; }

/* ---------- tiny metric icon animations (one-shot on reveal) ---------- */
.metric .mi { opacity: 0; }
.is-visible .metric .mi { animation: miPop 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) 0.25s forwards; }
.is-visible .metric--rocket .mi { animation: miRocket 0.85s cubic-bezier(0.2, 0.7, 0.2, 1) 0.25s forwards; }
.is-visible .metric--up .mi { animation: miUp 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) 0.25s forwards; }
.is-visible .metric--down .mi { animation: miDown 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) 0.25s forwards; }
.is-visible .metric--bolt .mi { animation: miBolt 0.8s ease 0.25s forwards; }
.metric:hover .mi { transform: scale(1.15); transition: transform 0.2s ease; }

@keyframes miPop { 0% { opacity: 0; transform: scale(0.5); } 70% { transform: scale(1.15); } 100% { opacity: 0.92; transform: scale(1); } }
@keyframes miRocket { 0% { opacity: 0; transform: translateY(7px) rotate(-8deg); } 60% { opacity: 1; } 100% { opacity: 0.92; transform: translateY(0) rotate(0); } }
@keyframes miUp { 0% { opacity: 0; transform: translate(-5px, 5px); } 100% { opacity: 0.92; transform: translate(0, 0); } }
@keyframes miDown { 0% { opacity: 0; transform: translate(-5px, -5px); } 100% { opacity: 0.92; transform: translate(0, 0); } }
@keyframes miBolt { 0% { opacity: 0; transform: scale(0.6); } 35% { opacity: 1; transform: scale(1.25); } 55% { opacity: 0.5; } 75% { opacity: 1; } 100% { opacity: 0.92; transform: scale(1); } }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .edu-grid, .sample-grid { grid-template-columns: 1fr 1fr; }
  .framework-grid { grid-template-columns: 1fr; }
  .tool-groups { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .site-nav { gap: 0.85rem; flex-wrap: wrap; justify-content: flex-end; }
  .edu-grid, .sample-grid { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .tool-groups { grid-template-columns: 1fr; }
  .contact-list li { grid-template-columns: 1fr; gap: 0.2rem; }
}
@media (max-width: 400px) { .metrics { grid-template-columns: 1fr; } }

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  body::before { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .tile:hover, .btn:hover, .metric:hover, .tools li:hover, a.tl-logo:hover { transform: none; }
  .metric .mi { opacity: 0.92; animation: none !important; }
}