/* ===================================================
   GOWTHAM KUMAR — PORTFOLIO
   Editorial, clean white, case-study magazine style
   =================================================== */

/* ---------- RESET & BASE ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --ink:        #0d0d0d;
  --ink-2:      #3d3d3d;
  --ink-3:      #888888;
  --rule:       #e0e0e0;
  --surface:    #ffffff;
  --surface-2:  #f8f7f5;
  --tag-bg:     #eeecea;

  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;

  --max-w:   1240px;
  --gutter:  clamp(1.5rem, 5vw, 4.5rem);
  --section: clamp(4rem, 8vw, 7rem);
  --nav-h:   64px;

  --text-xs:   0.6875rem;
  --text-sm:   0.8125rem;
  --text-base: 0.9375rem;
  --text-lg:   1.0625rem;

  --ls-caps: 0.12em;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img  { display: block; max-width: 100%; height: auto; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }

/* ────────────────────────────────────────────
   NAV
──────────────────────────────────────────── */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rule);
  transition: box-shadow 0.25s ease;
}
.nav.scrolled { box-shadow: 0 2px 24px rgba(0,0,0,0.06); }

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.nav-cta {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--ink);
  border: 1.5px solid var(--ink);
  padding: 0.5rem 1.25rem;
  border-radius: 2px;
  transition: background 0.2s ease, color 0.2s ease;
}
.nav-cta:hover { background: var(--ink); color: #fff; }

/* ────────────────────────────────────────────
   HERO
──────────────────────────────────────────── */
.hero {
  padding-top: calc(var(--nav-h) + var(--section));
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

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

.hero-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 2.25rem;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5.5vw, 4.25rem);
  font-weight: 900;
  line-height: 1.09;
  letter-spacing: -0.025em;
  color: var(--ink);
  max-width: 840px;
  margin-bottom: 4rem;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, auto);
  justify-content: start;
  padding: 2rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-right: 3.5rem;
}
.hero-meta-item:not(:last-child) {
  border-right: 1px solid var(--rule);
  margin-right: 3.5rem;
}

.hero-meta-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--ink-3);
}
.hero-meta-value {
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--ink);
}

/* ────────────────────────────────────────────
   STACK STRIP
──────────────────────────────────────────── */
.stack-strip { border-bottom: 1px solid var(--rule); }

.stack-strip-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.125rem var(--gutter);
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.stack-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--ink-3);
  white-space: nowrap;
  flex-shrink: 0;
}

.stack-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  align-items: center;
}

/* ────────────────────────────────────────────
   SHARED TAG  (text + optional icon)
──────────────────────────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--ink-2);
  background: var(--tag-bg);
  padding: 0.3rem 0.6rem;
  border-radius: 3px;
  letter-spacing: 0.01em;
  line-height: 1.5;
  white-space: nowrap;
}

.tag.tag-sm {
  font-size: 0.65rem;
  padding: 0.2rem 0.5rem;
}

.tag.tag-sm img {
  width: 11px;
  height: 11px;
}

.tag img,
.tag svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
  display: block;
}

/* ────────────────────────────────────────────
   STATUS BADGES
──────────────────────────────────────────── */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.28rem 0.65rem;
  border-radius: 3px;
  line-height: 1.5;
}

.status-badge::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge-live {
  background: #e8f5e9;
  color: #2e7d32;
}
.badge-live::before { background: #2e7d32; }

.badge-built {
  background: #fff8e1;
  color: #f57f17;
}
.badge-built::before { background: #f57f17; }

.badge-dev {
  background: #e3f2fd;
  color: #1565c0;
}
.badge-dev::before { background: #1565c0; }

.badge-paused {
  background: #f5f5f5;
  color: #616161;
}
.badge-paused::before { background: #9e9e9e; }

/* ────────────────────────────────────────────
   PROJECTS SECTION
──────────────────────────────────────────── */
.projects {
  padding: var(--section) var(--gutter);
}

.projects-header {
  max-width: var(--max-w);
  margin: 0 auto 3.5rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--rule);
}

.projects-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.projects-sub {
  font-size: var(--text-sm);
  color: var(--ink-3);
  max-width: 280px;
  text-align: right;
  line-height: 1.55;
}

/* ────────────────────────────────────────────
   PROJECTS GRID
──────────────────────────────────────────── */
.projects-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--rule);
}

/* ────────────────────────────────────────────
   PROJECT CARD
──────────────────────────────────────────── */
.project-card {
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  cursor: pointer;
  transition: background 0.2s ease;
  outline: none;
}
.project-card:nth-child(2n) { border-right: none; }

.project-card:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: -2px;
}
.project-card:hover { background: var(--surface-2); }

.project-card-inner {
  padding: 2.5rem 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  height: 100%;
  min-height: 440px;
}

/* Media thumbnail */
.project-card-media {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 1.5rem;
  position: relative;
}

.project-card-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.45s ease;
}
.project-card:hover .project-card-media img { transform: scale(1.04); }

/* Slider */
.card-slider {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-slider-track {
  width: 100%;
  height: 100%;
  position: relative;
}

.card-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.card-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.card-slider-dots {
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 5px;
  z-index: 2;
}

.card-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: none;
  background: var(--rule);
  cursor: pointer;
  padding: 0;
  transition: background 0.2s ease, transform 0.2s ease;
}
.card-dot.active {
  background: var(--ink);
  transform: scale(1.25);
}


.project-card-media-placeholder {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
}

/* Meta row */
.project-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-card-index {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--ink-3);
}

.project-card-industry {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: var(--tag-bg);
  padding: 0.25rem 0.65rem;
  border-radius: 3px;
}

/* Title */
.project-card-title {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2.25vw, 1.6rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
}

/* Summary */
.project-card-summary {
  font-size: var(--text-sm);
  color: var(--ink-2);
  line-height: 1.65;
  flex: 1;
}

/* Footer row */
.project-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  margin-top: auto;
}

.project-card-stack {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  align-items: center;
}

.project-card-stack .tag {
  font-size: 0.65rem;
  padding: 0.2rem 0.5rem;
}

.project-card-stack .tag img {
  width: 11px;
  height: 11px;
}

.project-card-arrow {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border: 1.5px solid var(--rule);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.project-card:hover .project-card-arrow {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

/* ────────────────────────────────────────────
   MODAL OVERLAY
──────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(13, 13, 13, 0.5);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2.5rem 1.5rem 4rem;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

/* ────────────────────────────────────────────
   MODAL PANEL
──────────────────────────────────────────── */
.modal {
  background: var(--surface);
  width: 100%;
  max-width: 820px;
  flex-shrink: 0;
  position: relative;
  transform: translateY(28px);
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}
.modal-overlay.open .modal { transform: translateY(0); }

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 38px;
  height: 38px;
  background: var(--surface);
  border: 1.5px solid var(--rule);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  transition: background 0.2s ease, color 0.2s ease;
  z-index: 10;
}
.modal-close:hover {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.modal-content { padding: 3.5rem 3.5rem 4.5rem; }

/* ─── Case study internals ─── */

.cs-media {
  width: 100%;
  margin-bottom: 3rem;
  border: 1px solid var(--rule);
  overflow: hidden;
  background: #ffffff;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
}
.cs-media img {
  max-width: 100%;
  max-height: 260px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.cs-media-placeholder {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  padding: 4rem;
}

.cs-industry {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.75rem;
}

.cs-title-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.cs-title {
  font-family: var(--font-serif);
  font-size: clamp(1.65rem, 4vw, 2.75rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.cs-url-link {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
  margin-bottom: 1.75rem;
  transition: color 0.2s, border-color 0.2s;
}
.cs-url-link:hover { color: var(--ink); border-bottom-color: var(--ink); }

.cs-rule {
  border: none;
  border-top: 1px solid var(--rule);
  margin-bottom: 2rem;
}

/* Meta grid */
.cs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 4rem;
  margin-bottom: 3rem;
}

.cs-grid-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.4rem;
}

.cs-grid-value {
  font-size: var(--text-base);
  color: var(--ink-2);
}

/* Sections */
.cs-section { margin-bottom: 2.5rem; }

.cs-section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--rule);
}

.cs-section-body {
  font-size: var(--text-base);
  color: var(--ink-2);
  line-height: 1.75;
}

/* Impact list */
.cs-impact-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cs-impact-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: var(--text-base);
  color: var(--ink-2);
  line-height: 1.6;
}

.cs-impact-list li::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--ink-3);
  flex-shrink: 0;
  margin-top: 0.8rem;
}

/* Tag rows — larger in modal */
.cs-tags-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.cs-tags-row .tag {
  font-size: var(--text-sm);
  padding: 0.35rem 0.7rem;
}

.cs-tags-row .tag img {
  width: 14px;
  height: 14px;
}

/* Note */
.cs-note {
  font-size: var(--text-xs);
  color: var(--ink-3);
  font-style: italic;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  line-height: 1.6;
}

/* Screenshots */
.cs-screenshots {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}
.cs-screenshot { border: 1px solid var(--rule); overflow: hidden; }

/* ────────────────────────────────────────────
   FOOTER
──────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--rule);
  padding: 3.5rem var(--gutter);
  background: var(--surface);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto 2.5rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-name {
  font-family: var(--font-serif);
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
}
.footer-role {
  font-size: var(--text-sm);
  color: var(--ink-3);
  margin-top: 0.3rem;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.footer-link {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--ink-2);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.footer-link:hover { color: var(--ink); border-bottom-color: var(--ink); }

.footer-copy {
  max-width: var(--max-w);
  margin: 0 auto;
  font-size: var(--text-xs);
  color: var(--ink-3);
}

/* ────────────────────────────────────────────
   RESPONSIVE
──────────────────────────────────────────── */
@media (max-width: 900px) {
  .projects-grid { grid-template-columns: 1fr; }
  .project-card { border-right: none; }
  .project-card-inner { min-height: unset; }

  .hero-meta { grid-template-columns: 1fr; }
  .hero-meta-item {
    padding-right: 0;
    padding: 1.25rem 0;
    border-right: none !important;
    margin-right: 0 !important;
    border-bottom: 1px solid var(--rule);
  }
  .hero-meta-item:last-child { border-bottom: none; }
  .projects-sub { text-align: left; max-width: 100%; }
}

@media (max-width: 680px) {
  .modal-content { padding: 2rem 1.75rem 3.5rem; }
  .cs-grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .footer-inner { align-items: flex-start; }
  .footer-right { gap: 1.5rem; }
  .cs-title-row { flex-direction: column; gap: 0.5rem; }
}

@media (max-width: 440px) {
  .project-card-inner { padding: 2rem 1.25rem; }
  .modal-content { padding: 1.75rem 1.25rem 3rem; }
}