/* ============================================================
   SAURABH MOHAN — Design System
   ============================================================ */

/* Google Fonts loaded in HTML head via preconnect */

:root {
  --bg:          #F8F6F2;
  --bg-white:    #FFFFFF;
  --text:        #1C1C1C;
  --text-mid:    #4A4A4A;
  --text-muted:  #6B6B6B;
  --accent:      #8B7355;
  --accent-dark: #6B5840;
  --border:      #E8E4DC;
  --border-mid:  #D4CFC5;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  8rem;

  --nav-h: 72px;
  --max-w: 1280px;
  --max-w-text: 720px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font: inherit; border: none; background: none; }

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: 0.02em;
}
h1 { font-size: clamp(2.8rem, 6vw, 5.5rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.8rem); }
h4 { font-size: 1.1rem; font-weight: 400; }

.label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.container--narrow {
  max-width: var(--max-w-text);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  transition: background 0.3s ease, backdrop-filter 0.3s ease,
              border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(248, 246, 242, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--space-md);
  max-width: var(--max-w);
  margin: 0 auto;
}
.nav__logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.nav__links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}
.nav__links a {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-mid);
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--text); }
.nav__links a.active { color: var(--accent); }

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}
.nav__toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 680px) {
  .nav__toggle { display: flex; }
  .nav__links {
    display: none;
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    background: var(--bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
  }
  .nav__links.open { display: flex; }
  .nav__links a { font-size: 1rem; letter-spacing: 0.2em; }
}

/* ---- Hero (index) ---- */
.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding-top: var(--nav-h);
}
.hero__image {
  height: 100svh;
  overflow: hidden;
  position: relative;
}
.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero__text {
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.hero__name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5.5vw, 6rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  line-height: 1.05;
}
.hero__tagline {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.8vw, 1.4rem);
  font-weight: 300;
  font-style: italic;
  color: var(--text-mid);
  max-width: 380px;
  line-height: 1.6;
}
.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: var(--space-sm);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  width: fit-content;
  transition: color 0.2s, border-color 0.2s;
}
.hero__cta:hover { color: var(--accent-dark); border-color: var(--accent-dark); }

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: unset;
  }
  .hero__image { height: 60svh; }
  .hero__text { padding: var(--space-lg) var(--space-md); }
}

/* ---- Section chrome ---- */
.section {
  padding: var(--space-xl) 0;
}
.section--border-top {
  border-top: 1px solid var(--border);
}
.section__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}
.section__header--center { text-align: center; align-items: center; }

/* ---- Featured works grid ---- */
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.work-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: var(--border);
}
.work-item::after {
  content: '';
  display: block;
  padding-top: 100%;
}
.work-item img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.1, 0.25, 1),
              filter 0.4s ease;
}
.work-item:hover img { transform: scale(1.04); filter: brightness(0.88); }
.work-item__caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--space-sm) var(--space-md);
  background: linear-gradient(transparent, rgba(28,28,28,0.7));
  color: #fff;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s, transform 0.3s;
}
.work-item:hover .work-item__caption { opacity: 1; transform: none; }

@media (max-width: 680px) {
  .works-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---- Recognition strip ---- */
.recognition {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.recognition__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  align-items: center;
}
.recognition__item {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}
.recognition__sep {
  width: 1px;
  height: 14px;
  background: var(--border-mid);
}

/* ---- Gallery page ---- */
.gallery-grid {
  columns: 3 300px;
  column-gap: 6px;
}
.gallery-item {
  display: block;
  break-inside: avoid;
  margin-bottom: 6px;
  overflow: hidden;
  cursor: pointer;
  position: relative;
}
.gallery-item img {
  width: 100%;
  display: block;
  transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1),
              filter 0.3s ease;
}
.gslide-image { position: relative; }
.gallery-item::after,
.gslide-image::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
}
.gallery-item:hover img { transform: scale(1.03); filter: brightness(1.08); }
.gallery-item__title {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--space-sm);
  background: linear-gradient(transparent, rgba(28,28,28,0.35));
  color: #fff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.4);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  font-style: italic;
  opacity: 0;
  transition: opacity 0.3s;
}
.gallery-item:hover .gallery-item__title { opacity: 1; }
.gallery-item__dims {
  display: block;
  font-size: 0.8rem;
  font-style: normal;
  font-weight: 300;
  opacity: 0.7;
  margin-top: 2px;
}

/* ---- About page ---- */
.about-hero {
  padding-top: calc(var(--nav-h) + var(--space-xl));
  padding-bottom: var(--space-xl);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  align-items: start;
}
.about-grid__portrait img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  object-position: top;
}
.about-content { padding-top: var(--space-sm); }

/* Rendered markdown */
.md-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 300;
  margin: var(--space-lg) 0 var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.04em;
}
.md-content h2:first-child { margin-top: 0; }
.md-content h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  margin: var(--space-md) 0 var(--space-xs);
}
.md-content p {
  color: var(--text-mid);
  margin-bottom: var(--space-sm);
  font-size: 1rem;
  line-height: 1.8;
}
.md-content ul, .md-content ol {
  padding-left: var(--space-md);
  margin-bottom: var(--space-sm);
}
.md-content li {
  list-style: disc;
  color: var(--text-mid);
  margin-bottom: 0.25rem;
  line-height: 1.7;
}
.md-content strong { font-weight: 400; color: var(--text); }
.md-content em { font-style: italic; }
.md-content a { color: var(--accent); border-bottom: 1px solid currentColor; }
.md-content a:hover { color: var(--accent-dark); }
.md-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-lg) 0;
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .about-grid__portrait img { aspect-ratio: 4/3; }
}

/* ---- Contact page ---- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  padding-top: calc(var(--nav-h) + var(--space-xl));
  padding-bottom: var(--space-xl);
}
.contact-info h1 { margin-bottom: var(--space-md); }
.contact-form { padding-top: var(--space-sm); }
.contact-form h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 300;
  margin-bottom: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: var(--space-sm);
}
.form-group label {
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.form-group input,
.form-group textarea,
.form-group select {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-mid);
  padding: 0.5rem 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--text);
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: var(--text);
  color: var(--bg);
  transition: background 0.2s, color 0.2s;
  margin-top: var(--space-sm);
  border: 1px solid var(--text);
}
.btn:hover { background: transparent; color: var(--text); }
.btn--outline {
  background: transparent;
  color: var(--text);
}
.btn--outline:hover { background: var(--text); color: var(--bg); }

.form-status {
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  color: var(--text-muted);
  min-height: 1.5rem;
}
.form-status.success { color: #3a7a3a; }
.form-status.error   { color: #a33; }

@media (max-width: 900px) {
  .contact-layout { grid-template-columns: 1fr; }
}

/* ---- Footer ---- */
.footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: 0 var(--space-md);
  max-width: var(--max-w);
  margin: 0 auto;
}
.footer__name {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.1em;
}
.footer__links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}
.footer__links a {
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer__links a:hover { color: var(--text); }
.footer__copy {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* ---- Scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }

/* ---- Page header (gallery, contact) ---- */
.page-header {
  padding-top: calc(var(--nav-h) + var(--space-xl));
  padding-bottom: var(--space-lg);
  text-align: center;
}
.page-header .label { margin-bottom: var(--space-sm); }

/* ---- Loading skeleton ---- */
.skeleton {
  background: linear-gradient(90deg,
    var(--border) 25%, var(--bg-white) 50%, var(--border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: 0;
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---- Utility ---- */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}
.visually-hidden { visibility: hidden; }