/* =========================================================
   HASSAN ALI — PORTFOLIO
   Design system: "clean signal from noisy data"
   ========================================================= */

:root {
  --paper:      #FAFAF7;
  --paper-alt:  #F1EFE6;
  --ink:        #1A1D1E;
  --ink-soft:   #4A4F52;
  --signal:     #2B4570;
  --signal-dim: #2B457022;
  --accent:     #E8A33D;
  --sage:       #7A8B7F;
  --line:       #1A1D1E1A;

  --mono: 'JetBrains Mono', monospace;
  --sans: 'Source Sans 3', sans-serif;

  --max: 920px;
  --pad: clamp(24px, 6vw, 64px);
}

* { box-sizing: border-box; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

::selection { background: var(--accent); color: var(--ink); }

/* subtle paper grain so the off-white doesn't look flat/digital */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============ NAV ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--pad);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(4px);
}

.nav__logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.nav__logo-dot { color: var(--accent); }

.nav__links {
  display: flex;
  gap: 28px;
  font-family: var(--mono);
  font-size: 13px;
}

.nav__links a {
  color: var(--ink-soft);
  transition: color 0.15s ease;
}

.nav__links a:hover, .nav__links a:focus-visible { color: var(--signal); }

.nav__cta {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
  border: 1px solid var(--ink);
  border-radius: 3px;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav__cta:hover, .nav__cta:focus-visible {
  background: var(--ink);
  color: var(--paper);
}

@media (max-width: 640px) {
  .nav__links { display: none; }
}

/* ============ HERO ============ */
.hero {
  padding: clamp(64px, 14vw, 140px) var(--pad) clamp(56px, 10vw, 96px);
  max-width: var(--max);
  margin: 0 auto;
}

.hero__terminal {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--sage);
  margin: 0 0 28px;
  white-space: pre-wrap;
  word-break: break-word;
}

.hero__prompt { color: var(--accent); margin-right: 6px; }

.hero__title {
  font-family: var(--mono);
  font-weight: 800;
  font-size: clamp(40px, 7vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0 0 28px;
}

.hero__highlight {
  color: var(--signal);
  position: relative;
}

.hero__sub {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--ink-soft);
  max-width: 560px;
  margin: 0 0 36px;
}

.hero__row {
  display: flex;
  gap: 14px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  padding: 13px 24px;
  border-radius: 3px;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
  display: inline-block;
}

.btn--primary {
  background: var(--ink);
  color: var(--paper);
}
.btn--primary:hover, .btn--primary:focus-visible {
  background: var(--signal);
  transform: translateY(-1px);
}

.btn--ghost {
  border: 1px solid var(--ink);
}
.btn--ghost:hover, .btn--ghost:focus-visible {
  background: var(--ink);
  color: var(--paper);
}

.hero__meta {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--sage);
}
.hero__meta .dot { margin: 0 8px; }

/* ============ SECTIONS (shared) ============ */
.section {
  padding: clamp(56px, 10vw, 96px) var(--pad);
  max-width: var(--max);
  margin: 0 auto;
}

.section--alt {
  background: var(--paper-alt);
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}
.section--alt > * {
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin: 0 0 20px;
  text-transform: lowercase;
}

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

.section__title {
  font-family: var(--mono);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 44px;
}

/* ============ ABOUT ============ */
.about__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
}

.about__text p {
  margin: 0 0 18px;
  color: var(--ink-soft);
  font-size: 17px;
}
.about__text strong { color: var(--ink); }

.about__card {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 28px;
  background: var(--paper);
  align-self: start;
}

.about__card-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.about__card-row:last-child { border-bottom: none; padding-bottom: 0; }
.about__card-row:first-child { padding-top: 0; }

.about__card-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--sage);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.about__card-value {
  font-size: 15px;
  font-weight: 600;
}

@media (max-width: 720px) {
  .about__grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ============ EXPERIENCE ============ */
.exp {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 40px;
}

.exp__when {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.exp__year {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 800;
  color: var(--signal);
}
.exp__remote {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--sage);
}

.exp__role {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 4px;
}
.exp__org {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--sage);
  margin: 0 0 18px;
}

.exp__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.exp__list li {
  position: relative;
  padding-left: 22px;
  color: var(--ink-soft);
}
.exp__list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--mono);
}

@media (max-width: 640px) {
  .exp { grid-template-columns: 1fr; gap: 10px; }
}

/* ============ PROJECTS ============ */
.project {
  display: grid;
  grid-template-columns: 70px 1fr 130px;
  gap: 24px;
  align-items: start;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}
.project:last-of-type { border-bottom: 1px solid var(--line); }

.project__index {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--sage);
  padding-top: 4px;
}

.project__title {
  font-size: 21px;
  font-weight: 700;
  margin: 0 0 10px;
}

.project__desc {
  color: var(--ink-soft);
  margin: 0 0 16px;
  max-width: 560px;
}

.project__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--signal);
  background: var(--signal-dim);
  padding: 4px 10px;
  border-radius: 20px;
}

.project__link {
  text-align: right;
  padding-top: 4px;
}
.project__link a {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
  white-space: nowrap;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.project__link a:hover, .project__link a:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.project__note {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--sage);
  margin-top: 20px;
}

@media (max-width: 720px) {
  .project {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .project__link { text-align: left; }
}

/* ============ STACK ============ */
.stack {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.stack__heading {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--signal);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
}

.stack__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.stack__list li {
  font-size: 15px;
  color: var(--ink-soft);
}

@media (max-width: 720px) {
  .stack { grid-template-columns: 1fr; gap: 32px; }
}

/* ============ EDUCATION ============ */
.edu {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.edu__degree {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 6px;
}
.edu__school {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--sage);
  margin: 0 0 16px;
}
.edu__courses {
  color: var(--ink-soft);
}

.edu__certs {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 4px;
}
.edu__cert {
  font-size: 15px;
  color: var(--ink-soft);
  padding-left: 18px;
  border-left: 2px solid var(--accent);
  margin: 0;
}

@media (max-width: 720px) {
  .edu { grid-template-columns: 1fr; gap: 28px; }
}

/* ============ CONTACT / FOOTER ============ */
.contact {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(64px, 12vw, 110px) var(--pad) 40px;
  text-align: left;
}

.contact__title {
  font-family: var(--mono);
  font-size: clamp(32px, 6vw, 52px);
  font-weight: 800;
  margin: 0 0 16px;
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
}

.contact__sub {
  color: #B9BDB9;
  max-width: var(--max);
  margin: 0 auto 40px;
  font-size: 17px;
}

.contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  max-width: var(--max);
  margin: 0 auto 56px;
}

.contact__link {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  border-bottom: 1px solid #ffffff44;
  padding-bottom: 4px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.contact__link:hover, .contact__link:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
}

.contact__foot {
  font-family: var(--mono);
  font-size: 12px;
  color: #80847F;
  max-width: var(--max);
  margin: 0 auto;
  padding-top: 28px;
  border-top: 1px solid #ffffff1a;
}

/* ============ FOCUS STATES (a11y) ============ */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}