/* ===================================
   SOUMITRA THORAT — PORTFOLIO
   Clean, centered, Rachel Fleming-style
   =================================== */

*, *::before, *::after {
  margin: 0; padding: 0; box-sizing: border-box;
}

:root {
  --c-bg: #FFFFFF;
  --c-text: #222222;
  --c-text-mid: #444444;
  --c-text-muted: #777777;
  --c-text-light: #AAAAAA;
  --c-accent: #C0392B;
  --c-border: #E5E5E5;
  --c-surface: #F9F9F9;

  --f-serif: 'Cormorant Garamond', Georgia, serif;
  --f-sans: 'Work Sans', -apple-system, sans-serif;

  --max-w: 820px;
  --page-pad: clamp(1.25rem, 5vw, 2.5rem);
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--f-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
}

/* === SITE HEADER === */
.site-header {
  text-align: center;
  padding: 3rem var(--page-pad) 0.5rem;
}

.site-header__name {
  font-family: var(--f-serif);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 600;
  color: var(--c-text);
  text-decoration: none;
  letter-spacing: 0.01em;
  display: block;
  line-height: 1.2;
}

.site-header__tagline {
  font-family: var(--f-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--c-text-muted);
  margin-top: 0.4rem;
}

/* === NAVIGATION === */
.nav {
  text-align: center;
  padding: 1rem var(--page-pad) 0;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 0;
}

.nav__toggle {
  display: none;
  font-family: var(--f-sans);
  font-size: 0.85rem;
  background: none;
  border: 1px solid var(--c-border);
  padding: 0.5rem 1.25rem;
  cursor: pointer;
  color: var(--c-text);
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1000;
  width: 100%;
  max-width: 150px;
}

.nav__list {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 2rem;
  padding-bottom: 1rem;
}

.nav__link {
  font-family: var(--f-sans);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--c-text-mid);
  text-decoration: none;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav__link:hover {
  color: var(--c-text);
}

.nav__link--active {
  color: var(--c-text);
  border-bottom-color: var(--c-text);
}

/* === MAIN === */
.main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem var(--page-pad) 4rem;
}

/* === ABOUT (Home) === */
.about {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.about__photo {
  width: 100%;
  max-width: 520px;
}

.about__img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 2px;
}

.about__text p {
  font-family: var(--f-sans);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--c-text-mid);
  text-align: center;
  max-width: 620px;
  margin: 0 auto;
}

.home-intro {
  text-align: justify;
}

/* === PORTFOLIO === */
.portfolio {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.portfolio__item {
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--c-border);
}

.portfolio__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.portfolio__title {
  font-family: var(--f-serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--c-text);
  text-decoration: none;
  line-height: 1.35;
  display: inline-block;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.portfolio__title:hover {
  border-bottom-color: var(--c-text);
}

.portfolio__date {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--c-text-light);
  margin-top: 0.25rem;
  margin-bottom: 0.75rem;
}

.portfolio__desc {
  font-size: 0.93rem;
  color: var(--c-text-mid);
  line-height: 1.75;
  max-width: 660px;
}

/* === CONTACT === */
.contact {
  max-width: 600px;
}

.contact__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact__direct-block {
  margin-bottom: 2rem;
}

.contact__eyebrow {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0 0 1rem 0;
}

.contact__link {
  color: var(--c-text);
  text-decoration: underline;
  font-size: 0.95rem;
}

.contact__heading {
  font-family: var(--f-serif);
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.contact__text {
  font-size: 0.95rem;
  color: var(--c-text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.contact__field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.contact__field label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--c-text);
}

.contact__field label span {
  font-weight: 400;
  color: var(--c-text-light);
  font-size: 0.75rem;
}

.contact__field input,
.contact__field textarea {
  font-family: var(--f-sans);
  font-size: 0.95rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--c-border);
  border-radius: 20px;
  outline: none;
  transition: border-color 0.2s;
  color: var(--c-text);
  background: var(--c-bg);
}

.contact__field textarea {
  border-radius: 12px;
  resize: vertical;
}

.contact__field input:focus,
.contact__field textarea:focus {
  border-color: var(--c-text);
}

.contact__submit {
  font-family: var(--f-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--c-accent);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  padding: 0.5rem 0;
  width: fit-content;
  transition: opacity 0.2s;
}

.contact__submit:hover { opacity: 0.65; }

/* === CASE STUDY === */
.case-study {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem var(--page-pad) 4rem;
}

.cs__header { margin-bottom: 2.5rem; }

.cs__label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text-light);
  margin-bottom: 1.25rem;
}

.cs__lede {
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--c-text-mid);
}

.cs__meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 3rem;
}

.cs__meta-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-text-light);
  margin-bottom: 0.25rem;
}

.cs__meta-value {
  font-size: 0.88rem;
  color: var(--c-text-mid);
  line-height: 1.5;
}

.cs__section { margin-bottom: 3rem; }

.cs__heading {
  font-family: var(--f-serif);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cs__section p {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--c-text-mid);
  margin-bottom: 0.85rem;
}

.cs__section em { font-weight: 600; }

.cs__question {
  font-family: var(--f-serif);
  font-size: 1.25rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--c-text);
  border: none;
  padding: 2rem 0;
  margin: 1.5rem auto;
  max-width: 620px;
  text-align: center;
}

.cs__approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1rem;
}

.cs__approach-item {
  padding: 1.25rem;
  background: var(--c-surface);
  border-radius: 3px;
}

.cs__approach-item h3 {
  font-family: var(--f-sans);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.cs__approach-item p {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  line-height: 1.65;
  margin-bottom: 0;
}

/* Task list */
.cs__task-list {
  list-style: none;
  padding: 0;
  margin-top: 0.5rem;
}

.cs__task-list li {
  font-size: 0.92rem;
  color: var(--c-text-mid);
  padding: 0.35rem 0 0.35rem 1.1rem;
  position: relative;
  line-height: 1.7;
}

.cs__task-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--c-text);
  font-weight: 700;
}

/* Subheadings within sections */
.cs__subheading {
  font-family: var(--f-sans);
  font-size: 1rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.6rem;
}

.cs__findings { display: flex; flex-direction: column; gap: 2.25rem; }

.cs__finding h3 {
  font-family: var(--f-sans);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  line-height: 1.45;
}

.cs__finding p { font-size: 0.92rem; }

.cs__finding ul { list-style: none; padding: 0; margin-top: 0.6rem; }

.cs__finding li {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  padding: 0.3rem 0 0.3rem 1.1rem;
  position: relative;
  line-height: 1.65;
}

.cs__finding li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--c-text);
  font-weight: 700;
}

.cs__recs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.cs__rec {
  padding: 1.25rem;
  background: var(--c-surface);
  border-radius: 3px;
}

.cs__rec h3 {
  font-family: var(--f-sans);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  line-height: 1.4;
}

.cs__rec p {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  line-height: 1.65;
  margin-bottom: 0;
}

/* Figures */
.cs__figure {
  margin: 2rem 0;
}

.cs__img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 3px;
}

.cs__caption {
  font-size: 0.8rem;
  color: var(--c-text-light);
  margin-top: 0.5rem;
  line-height: 1.5;
  font-style: italic;
}

/* Persona grid */
.cs__persona-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 1rem;
}

.cs__persona {
  padding: 1.25rem;
  background: var(--c-surface);
  border-radius: 3px;
  border-left: 3px solid var(--c-border);
}

.cs__persona h3 {
  font-family: var(--f-serif);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.cs__persona-role {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-text-light);
  margin-bottom: 0.5rem !important;
}

.cs__persona p {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

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

.cs__placeholder-note {
  font-style: italic;
  color: var(--c-text-light);
  padding: 3rem 0;
}

.cs__nav {
  display: flex;
  justify-content: space-between;
  padding: 1.5rem 0;
  border-top: 1px solid var(--c-border);
  margin-top: 2rem;
}

.cs__nav-link {
  font-size: 0.88rem;
  color: var(--c-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.cs__nav-link:hover { color: var(--c-text-muted); }

/* === FOOTER === */
.footer {
  border-top: 1px solid var(--c-border);
  padding: 2.5rem var(--page-pad);
}

.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 2rem;
}

.footer__name {
  font-family: var(--f-sans);
  font-size: 0.95rem;
  color: var(--c-text);
}

.footer__info {
  display: flex;
  gap: 2.5rem;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.footer__label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--c-text);
}

.footer__value {
  font-size: 0.82rem;
  color: var(--c-text-muted);
}

.footer__link {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer__link:hover { color: var(--c-text); }

/* === RESPONSIVE === */
@media (max-width: 640px) {
  .nav__toggle { display: block; margin: 0 auto 0.75rem; }

  .nav__list {
    display: none;
    flex-direction: column;
    gap: 0.75rem;
    padding-bottom: 1rem;
  }

  .nav__list--open { display: flex; }

  .cs__meta { grid-template-columns: 1fr 1fr; }
  .cs__approach-grid { grid-template-columns: 1fr; }
  .cs__recs { grid-template-columns: 1fr; }
  .contact__row { grid-template-columns: 1fr; }
  .cs__nav { flex-direction: column; gap: 0.75rem; }
  .contact__layout { grid-template-columns: 1fr; }

  .footer__inner { flex-direction: column; gap: 1.5rem; }
  .footer__info { flex-direction: column; gap: 1rem; }
}