/* RESET & VARIABLES */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;600;700;800&display=swap');

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

:root {
  --bg-color: #ffffff;
  --content-bg: #181818;
  --card-bg: #222222;
  --panel-bg: #242424;
  
  /* Text colors for main content area */
  --text-main: #e0e0e0;
  --text-bright: #ffffff;
  --text-muted: #a0a0a0;
  
  /* Text colors for white header & footer */
  --header-text-main: #111111;
  --header-text-muted: #666666;
  
  --accent-color: #ffffff;
  --border-color: #e5e5e5;
  --content-border-color: #333333;
  --header-height: 80px;
  --footer-height: 60px;
  --font-family: 'Manrope', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Base App Layout */
.app-viewport {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
}

/* Header Layout (White Background) */
header {
  height: 5.5rem;
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 5%;
  flex-shrink: 0;
  z-index: 100;
}

.brand-logo {
  font-size:3rem;
  font-weight:200;
  letter-spacing:2px;
  line-height:1;
  text-transform: uppercase;
  color: var(--header-text-main);
  text-decoration: none;
}

.brand-container{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  text-decoration:none;
  color:inherit;
  gap:2px;
}

.brand-title {
  font-size:.72rem;
  letter-spacing:2px;
  color:#595959;
  text-transform: uppercase;
  line-height: 1;
  margin-top: 2px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 3rem;
}

nav a {
  position: relative;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--header-text-muted);
  text-decoration: none;
  padding-bottom: 4px;
  transition:.25s;
}

/* Navigation Underline (Active & Hover) */
nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--header-text-main);
  transform: scaleX(0);
  transform-origin: bottom right;
  transition: transform 0.25s ease-out;
}

nav a:hover,
nav a.active {
  color: var(--header-text-main);
}

nav a:hover::after,
nav a.active::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

/* Main Viewport & Scrollable Feed (Grey Background) */
main.scrollable-feed {
  animation: fadeIn 0.45s ease-in both;
  flex: 1;
  overflow-y: auto;
  width: 100%;
  margin: 0 auto;
  padding: 3rem 2rem;
  display: flex;
  justify-content: center;
  background-color: var(--content-bg);
  scrollbar-width: thin;
  scrollbar-color: #444444 var(--content-bg);
}

main.scrollable-feed:has(.portfolio-grid:not([hidden])) {
  display: block;
  padding: 0;
}

main.scrollable-feed::-webkit-scrollbar {
  width: 8px;
}

main.scrollable-feed::-webkit-scrollbar-track {
  background: var(--content-bg);
}

main.scrollable-feed::-webkit-scrollbar-thumb {
  background-color: #444444;
  border-radius: 4px;
}

.content-container {
  width: 100%;
  max-width: 1100px;
}

/* Index Page Portfolio Grid & Cards */
.portfolio-grid {
  column-count: 3;
  column-gap: 0;
  width: 100%;
  background-color: var(--content-bg);
}

.project-card {
  position: relative;
  background-color: var(--card-bg);
  overflow: hidden;
  cursor: pointer;
  break-inside: avoid;
  margin-bottom: 0;
  display: block;
  width: 100%;
  text-decoration: none;
}

.card-thumbnail {
  width: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.4s ease, filter 0.3s ease;
}
/* Placeholder (no image yet) — a bare div has no intrinsic size, so it
   needs a forced ratio just to be visible at all */
div.card-thumbnail {
  aspect-ratio: 4 / 5; /* fallback/default */
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.04) 0px, rgba(255,255,255,0.04) 2px, transparent 2px, transparent 14px),
    linear-gradient(160deg, #2a2a2a, #141414);
}
/* Real image — use its own natural proportions, which is what makes the
   masonry grid genuinely asymmetric based on actual photo content. */
img.card-thumbnail {
  height: auto;
}

/* Varied ratios per card position — only for placeholder cards (no
   image yet). Real images use their own natural shape instead. */
.project-card:nth-child(6n+1) div.card-thumbnail{ aspect-ratio: 3 / 4; }
.project-card:nth-child(6n+2) div.card-thumbnail{ aspect-ratio: 1 / 1; }
.project-card:nth-child(6n+3) div.card-thumbnail{ aspect-ratio: 4 / 5; }
.project-card:nth-child(6n+4) div.card-thumbnail{ aspect-ratio: 2 / 3; }
.project-card:nth-child(6n+5) div.card-thumbnail{ aspect-ratio: 5 / 4; }
.project-card:nth-child(6n+6) div.card-thumbnail{ aspect-ratio: 3 / 5; }

.project-card:hover .card-thumbnail {
  transform: scale(1.08);
  filter: brightness(0.85);
}
.project-card:active .card-thumbnail {
  transform: scale(1.03);
  filter: brightness(0.75);
}

/* Bottom-anchored overlay — always visible so titles read correctly on
   touch devices (hover-only text was invisible on mobile, which has no
   reliable hover state) */
.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.88) 0%, rgba(0,0,0,0.35) 45%, transparent 75%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  text-align: left;
  padding: 1.25rem;
}

.project-title {
  font-size:1.25rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.2rem;
}

.project-category {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.project-roles {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Typography for Subpages */
.page-header {
  margin-bottom: 2.5rem;
}

.page-header h1 {
  color: var(--text-bright);
  font-size: 2.25rem;
  font-weight: 600;
  letter-spacing: -0.5px;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 560px;
}

/* Project detail page */
.back-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  display: inline-block;
  margin-bottom: 2rem;
  transition: color 0.2s ease;
}
.back-link:hover{ color: var(--text-bright); }

.project-detail-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.project-hero-placeholder {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--content-border-color);
  overflow: hidden;
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.04) 0px, rgba(255,255,255,0.04) 2px, transparent 2px, transparent 14px),
    linear-gradient(160deg, #2a2a2a, #141414);
}
/* No real image yet (renderDetail leaves this empty) — only THEN force
   a box shape, since an empty div otherwise has no height at all */
.project-hero-placeholder:empty {
  aspect-ratio: 4 / 5;
}
.project-hero-placeholder img {
  width: 100%;
  height: auto;
  display: block;
}

.project-detail-link {
  display: inline-flex;
  margin-top: 2rem;
}

.project-detail-header{ margin-bottom: 1.5rem; }
.project-detail-category {
  color: var(--accent-color);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  display: block;
}
.project-detail-header h1{ margin-top: 0.25rem; }

.project-detail-description {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 3rem;
}
.project-detail-description p {
  margin-bottom: 1.2rem;
}
.project-detail-description p:last-child {
  margin-bottom: 0;
}
.project-detail-list {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.project-detail-list:last-child {
  margin-bottom: 0;
}
.project-detail-list li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.5;
}
.project-detail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--text-bright);
}

.project-detail-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}
.project-detail-meta > div > span:first-child {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
}
.project-detail-meta .meta-value{ font-weight: 600; overflow-wrap: break-word; }

@media (max-width: 900px) {
  .project-detail-split { grid-template-columns: 1fr; gap: 2rem; }
  .project-hero-placeholder { aspect-ratio: 16 / 9; }
}

/* About Section Layout */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
  color: var(--text-main);
  font-size: 1.05rem;
}

.about-text strong {
  color: var(--text-bright);
}

.about-photo {
  width: 100%;
  height: 380px;
  background-color: var(--panel-bg);
  border: 1px solid var(--content-border-color);
  border-radius: 4px;
  object-fit: cover;
}

.doc-links {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.doc-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background-color: var(--panel-bg);
  border: 1px solid var(--content-border-color);
  border-radius: 4px;
  color: var(--text-bright);
  text-decoration: none;
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.doc-link:hover {
  border-color: var(--text-bright);
  background-color: #2e2e2e;
}
.doc-link:active {
  background-color: #1a1a1a;
}

.doc-link svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

/* Contact Form Layout */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 600px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  background-color: var(--panel-bg);
  border: 1px solid var(--content-border-color);
  border-radius: 4px;
  padding: 0.85rem 1rem;
  color: var(--text-bright);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--text-bright);
}

.submit-btn {
  align-self: flex-start;
  padding: 0.85rem 1.75rem;
  background-color: var(--text-bright);
  border: 1px solid var(--text-bright);
  color: #111111;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: background-color 0.2s ease, opacity 0.2s ease;
}

.submit-btn:hover {
  opacity: 0.9;
}
.submit-btn:active {
  opacity: 0.75;
}

.form-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.5;
}

.form-feedback {
  font-size: 0.9rem;
  padding: 0.85rem 1rem;
  border-radius: 4px;
  margin-bottom: 1.5rem;
  max-width: 600px;
  display: none;
}
.form-feedback:empty { display: none; }
.form-feedback:not(:empty) { display: block; }
.form-feedback--success {
  background-color: rgba(255,255,255,0.06);
  border: 1px solid var(--text-bright);
  color: var(--text-bright);
}
.form-feedback--error {
  background-color: rgba(255,80,80,0.08);
  border: 1px solid #ff5050;
  color: #ff8888;
}

.form-field-error {
  display: block;
  font-size: 0.78rem;
  color: #ff8888;
  margin-top: 0.35rem;
}
.form-field-error:empty { display: none; }

/* Footer Layout (White Background) */
footer {
  height: var(--footer-height);
  background-color: var(--bg-color);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 5%;
  color: var(--header-text-muted);
  font-size: 0.85rem;
  flex-shrink: 0;
  z-index: 100;
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.social-link {
  color: #222222;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease, transform 0.2s ease;
}

.social-link:hover {
  color: var(--header-text-main);
  transform: translateY(-2px);
}
.social-link:active {
  transform: translateY(0);
}

.social-link svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* Responsive Breakpoints */
@media (max-width: 1200px) {
  .portfolio-grid { column-count: 2; }
}

@media (max-width: 768px) {
  .portfolio-grid { column-count: 1; }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-photo {
    height: 250px;
  }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Reusable fade the router retriggers on every grid<->detail swap, so
   navigating within the SPA feels consistent with the fade real page
   loads (About, Message Me) already get — previously this only ever
   played once, on first paint. */
.route-fade {
  animation: fadeIn 0.4s ease-in;
}

header,
footer,
.page-header,
.content-container,
.portfolio-grid,
.contact-form,
.about-grid {
    animation: fadeIn 0.5s ease-in;
}

/* ---------- KEYBOARD FOCUS ----------
   Previously only form inputs had a visible focus state; everything else
   (nav links, cards, back-link, doc-links, socials, submit button) fell
   back to the browser default, which is easy to lose against this dark/
   light-header combination. */
nav a:focus-visible,
.project-card:focus-visible,
.back-link:focus-visible,
.doc-link:focus-visible,
.social-link:focus-visible,
.submit-btn:focus-visible,
.brand-container:focus-visible {
  outline: 2px solid var(--text-bright);
  outline-offset: 3px;
  border-radius: 2px;
}
header .brand-container:focus-visible,
header nav a:focus-visible {
  outline-color: var(--header-text-main);
}