/* ==========================================================================
   Atharv Joshi — atharvjosh.com
   Static HTML/CSS/JS build (converted from Next.js/Tailwind source)
   ========================================================================== */

/* ---------- Fonts ---------- */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Instrument+Serif:ital@0;1&family=Geist+Mono:wght@400;500&display=swap");

/* ---------- Design tokens ---------- */
:root {
  --color-background: #090909;
  --color-surface: #121212;
  --color-surface-hover: #171717;
  --color-border: rgba(250, 250, 250, 0.08);
  --color-accent: #7dd3fc;
  --color-accent-dim: rgba(125, 211, 252, 0.4);
  --color-text-primary: #fafafa;
  --color-text-secondary: #a3a3a3;
  --color-text-muted: #6b6b6b;

  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-serif: "Instrument Serif", Georgia, serif;
  --font-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --max-content: 1120px;
  --max-prose: 680px;

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

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 28px;

  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px -8px rgba(0, 0, 0, 0.5);
  --shadow-soft-lg: 0 4px 12px rgba(0, 0, 0, 0.4), 0 24px 48px -16px rgba(0, 0, 0, 0.6);
  --shadow-accent-glow: 0 0 0 1px rgba(125, 211, 252, 0.15), 0 8px 32px -8px rgba(125, 211, 252, 0.12);
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  border-color: var(--color-border);
}

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  min-height: 100vh;
  background-color: var(--color-background);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  display: flex;
  flex-direction: column;
}

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

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

ul {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

::selection {
  background-color: var(--color-accent-dim);
  color: var(--color-text-primary);
}

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

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--color-background);
}
::-webkit-scrollbar-thumb {
  background-color: #2a2a2a;
  border-radius: 999px;
  border: 2px solid var(--color-background);
}

.text-balance {
  text-wrap: balance;
}

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--max-content);
  margin-inline: auto;
  padding-inline: 24px;
}

.prose-width {
  max-width: var(--max-prose);
}

main {
  flex: 1;
}

.page-main {
  padding-top: 128px;
  padding-bottom: 96px;
}

/* ---------- Type scale ---------- */
.text-display-1 {
  font-size: clamp(3.5rem, 3rem + 3vw, 7rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.text-display-2 {
  font-size: clamp(2.5rem, 2.1rem + 2vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
}

.text-heading-1 {
  font-size: clamp(1.75rem, 1.5rem + 1.2vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.text-heading-2 {
  font-size: clamp(1.375rem, 1.25rem + 0.6vw, 1.75rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
}

.label-muted {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
}

.text-secondary {
  color: var(--color-text-secondary);
}

/* ---------- Reveal-on-scroll (mirrors the Framer Motion "Reveal" component) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease-smooth), transform 0.6s var(--ease-smooth);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Header / Navbar ---------- */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  background-color: transparent;
  transition: background-color 0.5s var(--ease-smooth),
    backdrop-filter 0.5s var(--ease-smooth), border-color 0.5s var(--ease-smooth);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  background-color: rgba(9, 9, 9, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-content);
  margin-inline: auto;
  padding-inline: 24px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  transition: color 0.3s ease;
}

.nav-logo:hover {
  color: var(--color-accent);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 4px;
}

.nav-link {
  position: relative;
  display: inline-block;
  border-radius: 4px;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--color-text-primary);
}

.nav-link.is-active {
  color: var(--color-text-primary);
}

.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -2px;
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: var(--color-accent);
  transform: translateX(-50%);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border-radius: 4px;
  color: var(--color-text-primary);
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

.icon-close {
  display: none;
}

.nav-toggle.is-open .icon-open {
  display: none;
}
.nav-toggle.is-open .icon-close {
  display: block;
}

.mobile-drawer {
  overflow: hidden;
  max-height: 0;
  border-bottom: 1px solid transparent;
  background-color: rgba(9, 9, 9, 0.95);
  backdrop-filter: blur(20px);
  transition: max-height 0.35s var(--ease-smooth), border-color 0.35s ease;
}

.mobile-drawer.is-open {
  max-height: 400px;
  border-bottom-color: var(--color-border);
}

.mobile-drawer ul {
  display: flex;
  flex-direction: column;
  padding: 8px 24px;
}

.mobile-drawer .nav-link {
  display: block;
  padding: 12px 0;
  font-size: 16px;
  border-radius: 0;
}

.mobile-drawer .nav-link.is-active::after {
  display: none;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
  .nav-toggle {
    display: none;
  }
  .mobile-drawer {
    display: none;
  }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s var(--ease-smooth);
}

.btn:active {
  transform: scale(0.98);
}

.btn svg {
  width: 14px;
  height: 14px;
}

.btn-primary {
  background: var(--color-text-primary);
  color: var(--color-background);
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  background: rgba(250, 250, 250, 0.9);
}

.btn-secondary {
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.btn-secondary:hover {
  border-color: rgba(250, 250, 250, 0.3);
  background: var(--color-surface);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-inline: 24px;
}

.hero-gradient {
  pointer-events: none;
  position: absolute;
  left: 50%;
  top: 50%;
  width: 70vw;
  height: 70vw;
  max-width: 900px;
  max-height: 900px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  transition: transform 0.6s var(--ease-smooth);
}

.hero-gradient-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  opacity: 0.12;
  filter: blur(64px);
  background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 10;
  display: flex;
  max-width: var(--max-content);
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-title {
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--color-text-primary);
}

.hero-title span {
  display: block;
}

.hero-tagline {
  margin-top: 24px;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-text-secondary);
}

.hero-description {
  margin-top: 24px;
  max-width: var(--max-prose);
  font-size: 16px;
  color: var(--color-text-secondary);
}

@media (min-width: 640px) {
  .hero-description {
    font-size: 18px;
  }
}

.hero-actions {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
  }
}

/* Staggered entrance animation, mirrors Framer Motion container/item variants */
.hero-anim {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease-smooth), transform 0.7s var(--ease-smooth);
}

.hero-anim.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-anim:nth-child(1) { transition-delay: 0.15s; }
.hero-anim:nth-child(2) { transition-delay: 0.27s; }
.hero-anim:nth-child(3) { transition-delay: 0.39s; }
.hero-anim:nth-child(4) { transition-delay: 0.51s; }

/* ---------- Page header ---------- */
.page-header {
  margin-bottom: 64px;
}

.page-header .eyebrow {
  margin-bottom: 16px;
}

.page-header p.description {
  margin-top: 16px;
  max-width: var(--max-prose);
  color: var(--color-text-secondary);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  max-width: var(--max-content);
  margin-inline: auto;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 40px 24px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-socials a {
  display: inline-flex;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

.footer-socials a:hover {
  color: var(--color-accent);
}

.footer-socials svg {
  width: 16px;
  height: 16px;
}

/* ---------- Featured project card ---------- */
.featured-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: transform 0.5s var(--ease-smooth), border-color 0.5s var(--ease-smooth),
    box-shadow 0.5s var(--ease-smooth);
}

.featured-card:hover {
  transform: translateY(-4px);
  border-color: rgba(250, 250, 250, 0.15);
  box-shadow: var(--shadow-accent-glow);
}

.featured-card-link {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.featured-card-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .featured-card-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.featured-card-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px;
}

@media (min-width: 768px) {
  .featured-card-content {
    padding: 40px;
  }
}

.status-dot-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--color-accent);
}

.status-label {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-secondary);
}

.featured-card h3 {
  font-weight: 600;
  color: var(--color-text-primary);
}

.featured-card p.desc {
  margin-top: 16px;
  color: var(--color-text-secondary);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.tag-pill {
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-secondary);
}

.tag-pill-muted {
  border-color: rgba(255, 255, 255, 0.06);
  font-size: 11px;
  padding: 2px 10px;
  color: var(--color-text-muted);
}

.card-actions {
  position: relative;
  z-index: 2;
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.featured-card-visual {
  position: relative;
  display: flex;
  min-height: 260px;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--color-border);
  background: rgba(9, 9, 9, 0.4);
  padding: 32px;
}

@media (min-width: 768px) {
  .featured-card-visual {
    border-top: none;
    border-left: 1px solid var(--color-border);
  }
}

/* Browser-window style mockup used as a visual placeholder for screenshots */
.browser-mockup {
  width: 100%;
  max-width: 384px;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.browser-mockup-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--color-border);
  padding: 10px 12px;
}

.browser-mockup-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(107, 107, 107, 0.4);
}

.browser-mockup-body {
  display: flex;
  aspect-ratio: 16 / 9;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px;
}

.browser-mockup-body.tall {
  aspect-ratio: 16 / 8;
}

.mockup-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(125, 211, 252, 0.4);
  background: rgba(125, 211, 252, 0.1);
}

.mockup-line {
  height: 8px;
  border-radius: 999px;
  background: rgba(107, 107, 107, 0.2);
}

.mockup-line.w-1 { width: 96px; }
.mockup-line.w-2 { width: 64px; }
.mockup-line.w-3 { width: 128px; }

/* ---------- Upcoming project cards ---------- */
.upcoming-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .upcoming-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .upcoming-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.upcoming-card {
  border-radius: var(--radius-xl);
  border: 1px dashed var(--color-border);
  padding: 24px;
  transition: border-color 0.3s ease;
}

.upcoming-card:hover {
  border-color: rgba(250, 250, 250, 0.15);
}

.upcoming-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.upcoming-card h3 {
  font-weight: 500;
  color: var(--color-text-primary);
}

.badge-soon {
  border-radius: 999px;
  background: var(--color-surface);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.upcoming-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.upcoming-card .tag-list {
  margin-top: 20px;
}

/* ---------- About page ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 64px;
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }
}

.about-text {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.about-text p + p {
  margin-top: 20px;
}

.about-side {
  min-width: 0;
}

@media (min-width: 1024px) {
  .about-side {
    border-left: 1px solid var(--color-border);
    padding-left: 48px;
  }
}

.info-block + .info-block {
  margin-top: 32px;
}

.info-block dt {
  margin-bottom: 8px;
}

.info-block dd.title {
  color: var(--color-text-primary);
}

.info-block dd.subtitle {
  margin-top: 2px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.interests-block {
  margin-top: 40px;
}

.interests-block p {
  margin-bottom: 12px;
}

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

.interests-list li {
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ---------- Project detail / case study ---------- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 40px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

.back-link:hover {
  color: var(--color-text-primary);
}

.back-link svg {
  width: 14px;
  height: 14px;
}

.case-title {
  font-weight: 600;
  color: var(--color-text-primary);
}

.case-tagline {
  margin-top: 16px;
  max-width: var(--max-prose);
  font-size: 18px;
  color: var(--color-text-secondary);
}

.case-links {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.gallery {
  margin-top: 64px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.gallery-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--color-border);
  padding: 12px 16px;
}

.gallery-body {
  display: flex;
  aspect-ratio: 16 / 8;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 32px;
}

.case-grid {
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 64px;
}

@media (min-width: 1024px) {
  .case-grid {
    grid-template-columns: 1fr 280px;
    gap: 48px;
  }
}

.case-sections > * + * {
  margin-top: 48px;
}

.case-sections h2 {
  margin-bottom: 12px;
}

.case-sections p {
  max-width: var(--max-prose);
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.tech-stack-group + .tech-stack-group {
  margin-top: 24px;
}

.tech-stack h2 {
  margin-bottom: 16px;
}

.tech-stack-group p {
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--color-text-primary);
}

.tech-stack-group ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-stack-group li {
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 2px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-secondary);
}

/* ---------- Simple / stub pages (Writing, Resume, Contact) ---------- */
.stub-panel {
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px 32px;
  text-align: center;
  color: var(--color-text-secondary);
}

.stub-panel p {
  max-width: var(--max-prose);
  margin-inline: auto;
}

.stub-panel .btn {
  margin-top: 24px;
}

/* ---------- Contact page ---------- */
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: var(--max-prose);
}

.contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.contact-row:hover {
  border-color: rgba(250, 250, 250, 0.15);
  background: var(--color-surface);
}

.contact-row-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.contact-row-left svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
}

.contact-row-label {
  font-size: 14px;
  color: var(--color-text-muted);
}

.contact-row-value {
  color: var(--color-text-primary);
}

/* ---------- 404 ---------- */
.notfound {
  display: flex;
  min-height: 70vh;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
}

.notfound .code {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-size: 14px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}