/* ============================================================
   Jahnavi Sachdeva — Portfolio
   Editorial, typography-led aesthetic. Slate paper + navy + bronze.
   ============================================================ */

:root {
  --paper: #f6f5f1;
  --paper-deep: #eae8e1;
  --ink: #1b2431;
  --ink-soft: #48525f;
  --ink-faint: #8992a0;
  --accent: #2b4c6f;
  --accent-deep: #1d3550;
  --sage: #8c6a3f;
  --line: rgba(27, 36, 49, 0.13);
  --line-strong: rgba(27, 36, 49, 0.27);
  --paper-rgb: 246, 245, 241;

  --font-display: "Fraunces", "Iowan Old Style", serif;
  --font-body: "Archivo", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --container: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 1rem;
  z-index: 999;
}

/* Grain overlay — fixed, non-interactive, cheap */
.grain-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.045;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%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");
}

/* ---------- Layout helpers ---------- */
.section-inner,
.header-inner,
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: clamp(4rem, 9vw, 7.5rem) 0;
  position: relative;
}

.section-alt {
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.section-index {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 2.9rem);
  margin: 0;
  letter-spacing: -0.01em;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(var(--paper-rgb), 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  text-decoration: none;
}

.logo-mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  border: 1.5px solid var(--ink);
  padding: 0.15rem 0.55rem;
  border-radius: 3px;
  display: inline-block;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2vw, 2rem);
  font-size: 0.95rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  position: relative;
  padding: 0.25rem 0;
  transition: color 0.2s var(--ease);
}

.main-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}

.main-nav a:not(.nav-cta):hover {
  color: var(--ink);
}
.main-nav a:not(.nav-cta):hover::after {
  transform: scaleX(1);
}

.nav-cta {
  text-decoration: none;
  border: 1.5px solid var(--ink);
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  font-size: 0.88rem;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}
.nav-cta:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  display: block;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(2.5rem, 6vw, 4rem);
  overflow: hidden;
}

.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1.35fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-transform: uppercase;
  margin: 0 0 1.4rem;
}
.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sage);
  box-shadow: 0 0 0 3px rgba(140, 106, 63, 0.18);
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(3rem, 7.5vw, 5.4rem);
  line-height: 0.98;
  margin: 0 0 0.9rem;
  letter-spacing: -0.015em;
}

.hero-title-accent {
  color: var(--accent);
  font-style: italic;
  font-weight: 400;
}

.hero-role {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--ink-soft);
  margin: 0 0 1.6rem;
}

.hero-lede {
  max-width: 46ch;
  font-size: 1.08rem;
  color: var(--ink-soft);
  margin: 0 0 2.2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.65rem;
  border-radius: 999px;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), background 0.18s var(--ease), color 0.18s var(--ease);
}
.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--accent);
  color: var(--paper);
}
.btn-primary:hover {
  background: var(--accent-deep);
  box-shadow: 0 6px 18px rgba(43, 76, 111, 0.28);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}
.btn-ghost:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-2px);
}

/* Hero figure */
.hero-figure {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 280px;
}

.hero-ring {
  position: absolute;
  width: 240px;
  height: 240px;
  border: 1.5px dashed var(--line-strong);
  border-radius: 50%;
  animation: spin 40s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.stat-card {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  border-radius: 20px;
  padding: 2.2rem 1.8rem;
  width: 200px;
  text-align: left;
  transform: rotate(-4deg);
  box-shadow: 0 20px 40px rgba(30, 26, 21, 0.22);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 3.4rem;
  line-height: 1;
  display: block;
  color: var(--accent);
}
.stat-plus {
  font-size: 1.6rem;
  vertical-align: super;
}

.stat-label {
  display: block;
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(244, 239, 228, 0.75);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-badge {
  position: absolute;
  bottom: -6px;
  right: 6%;
  background: var(--sage);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  transform: rotate(3deg);
  box-shadow: 0 10px 22px rgba(140, 106, 63, 0.3);
}

/* Ticker */
.hero-ticker {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 0.85rem 0;
  background: var(--paper-deep);
}

.hero-ticker-track {
  display: flex;
  gap: 0.9rem;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
  animation: ticker 28s linear infinite;
  width: max-content;
}

@keyframes ticker {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}

.about-lede p {
  font-size: 1.12rem;
  color: var(--ink-soft);
  margin: 0 0 1.2rem;
}
.about-lede strong {
  color: var(--ink);
}

.about-facts {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  border-left: 1px solid var(--line);
  padding-left: clamp(1.25rem, 3vw, 2rem);
}

.fact {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.fact-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
}

.fact-value {
  font-size: 0.98rem;
  color: var(--ink-soft);
}

/* ---------- Timeline ---------- */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--line-strong);
}

.timeline-item {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  padding-bottom: clamp(2.5rem, 5vw, 3.5rem);
  position: relative;
}
.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  display: flex;
  justify-content: center;
  padding-top: 0.4rem;
}

.timeline-dot {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--accent);
  display: block;
  position: relative;
  z-index: 1;
}

.timeline-meta {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.timeline-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--sage);
  color: var(--paper);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}

.timeline-role {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 500;
  margin: 0 0 0.15rem;
}

.timeline-org {
  font-size: 0.95rem;
  color: var(--accent-deep);
  font-weight: 600;
  margin: 0 0 0.9rem;
}

.timeline-points {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--ink-soft);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.timeline-points li::marker {
  color: var(--accent);
}

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
}

.skill-card {
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.6rem 1.5rem;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease);
}
.skill-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(30, 26, 21, 0.1);
  border-color: var(--line-strong);
}

.skill-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  margin: 0 0 1rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.skill-tags span {
  font-size: 0.82rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
  background: var(--paper);
}

/* ---------- Achievements ---------- */
.achieve-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.achieve-card {
  padding: 1.8rem;
  border-radius: 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.achieve-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(30, 26, 21, 0.1);
}

.achieve-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.6rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.achieve-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
}

.contact-lede {
  font-size: 1.2rem;
  font-family: var(--font-display);
  font-weight: 400;
  max-width: 30ch;
  margin: 0 0 2rem;
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.contact-list li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.9rem;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.contact-list a {
  text-decoration: none;
  font-size: 1rem;
  transition: color 0.2s var(--ease);
}
.contact-list a:hover {
  color: var(--accent-deep);
}

.contact-form {
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.hp-field {
  position: absolute;
  left: -9999px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
}

.field input,
.field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 0.9rem;
  border: 1.5px solid var(--line-strong);
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  resize: vertical;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(43, 76, 111, 0.14);
}

.contact-form .btn {
  margin-top: 0.3rem;
}

.form-status {
  margin: 0;
  font-size: 0.9rem;
  min-height: 1.2em;
}
.form-status.success {
  color: var(--sage);
}
.form-status.error {
  color: var(--accent-deep);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--ink-faint);
  font-family: var(--font-mono);
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-ring,
  .hero-ticker-track {
    animation: none;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-figure {
    order: -1;
    min-height: 200px;
    margin-bottom: 1rem;
  }
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .about-facts {
    border-left: none;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 1.5rem;
  }
}

@media (max-width: 720px) {
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.5rem var(--gutter) 1.25rem;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  }
  .main-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .main-nav a {
    padding: 0.7rem 0;
    width: 100%;
  }
  .nav-cta {
    margin-top: 0.5rem;
  }
  .nav-toggle {
    display: flex;
  }
}

@media (max-width: 520px) {
  .stat-card {
    width: 170px;
    padding: 1.6rem 1.4rem;
  }
  .stat-number {
    font-size: 2.6rem;
  }
  .hero-badge {
    right: 0;
  }
}