/* ==========================================================================
   Aysha Khatune — portfolio site
   Design tokens
   ========================================================================== */

:root {
  --bg: #ffffff;
  --bg-alt: #f7f7f5;
  --text: #1c1e1d;
  --text-muted: #737873;
  --accent: #2f6f5e;      /* deep teal */
  --accent-soft: #e8f0ed; /* teal tint for subtle backgrounds */
  --border: #e8e7e2;
  --card-bg: #ffffff;
  --shadow-sm: 0 1px 2px rgba(20, 20, 20, 0.05);
  --shadow-md: 0 4px 16px rgba(20, 20, 20, 0.06);

  --font-display: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  --max-width: 700px;
  --radius: 10px;
  --radius-sm: 6px;
}

html[data-theme='dark'] {
  --bg: #14181a;
  --bg-alt: #1b2022;
  --text: #eceeec;
  --text-muted: #98a19c;
  --accent: #63c1a2;
  --accent-soft: #1c2b27;
  --border: #262c2d;
  --card-bg: #191f21;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
}

/* ==========================================================================
   Base
   ========================================================================== */

* { box-sizing: border-box; }

html { color-scheme: light; }
html[data-theme='dark'] { color-scheme: dark; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  color: var(--text);
}

h1 { font-size: 2.25rem; letter-spacing: -0.02em; }
h2 {
  font-size: 1.3rem;
  margin-top: 3rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}
h3 { font-size: 1.05rem; margin-top: 0; }

p { margin: 0 0 1em; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}
a:hover { border-bottom-color: currentColor; }

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

.mono {
  font-family: var(--font-mono);
  font-size: 0.82em;
  letter-spacing: 0;
}


/* ==========================================================================
   Layout shell
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.15rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
  border-bottom: none;
  white-space: nowrap;
}
.logo:hover { border-bottom: none; opacity: 0.75; }

nav.site-nav {
  display: flex;
  gap: 1.4rem;
  flex-wrap: wrap;
  font-size: 0.92rem;
}

nav.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: none;
  padding: 0.15rem 0;
}
nav.site-nav a:hover { color: var(--text); }
nav.site-nav a[aria-current='page'] {
  color: var(--accent);
  font-weight: 500;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

#theme-toggle {
  font-family: var(--font-body);
  font-size: 0.85rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-muted);
  padding: 0.4rem 0.85rem;
  cursor: pointer;
}
#theme-toggle:hover { color: var(--text); border-color: var(--text-muted); }

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}
.site-footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.75rem 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding-bottom: 2.25rem;
  margin-bottom: 0.5rem;
}
.hero .tagline {
  color: var(--accent);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 1.1rem;
}
.hero .location {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.hero-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 1.6rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.88rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover { opacity: 0.9; color: #fff; }

/* ==========================================================================
   Timeline (Experience)
   ========================================================================== */

.timeline-item {
  border-left: 2px solid var(--border);
  padding-left: 1.25rem;
  margin-bottom: 2rem;
  position: relative;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 0.4rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.timeline-item .role { font-weight: 600; font-size: 1.02rem; }
.timeline-item .org { color: var(--accent); }
.timeline-item .dates {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  margin-top: 0.1rem;
}
.timeline-item ul { margin: 0.5rem 0 0; padding-left: 1.2rem; }
.timeline-item li { margin-bottom: 0.4rem; color: var(--text); }

/* ==========================================================================
   Cards / grid
   ========================================================================== */

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem 1.35rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 600px) {
  .grid-2 { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Tags
   ========================================================================== */

.tag-group { margin-bottom: 1.4rem; }
.tag-group .label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.tags { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tag {
  font-size: 0.82rem;
  background: var(--bg-alt);
  border-radius: 20px;
  padding: 0.28rem 0.7rem;
  color: var(--text);
}

/* ==========================================================================
   Gallery
   ========================================================================== */

/* ==========================================================================
   Gallery (Masonry Style - Maintains Aspect Ratios)
   ========================================================================== */

.gallery-grid {
  column-count: 3;
  column-gap: 0.85rem;
  width: 100%;
}

@media (max-width: 640px) {
  .gallery-grid { 
    column-count: 2; 
  }
}

.gallery-item {
  display: block;
  width: 100%;
  margin-bottom: 0.85rem; /* Replaces row gap */
  break-inside: avoid;    /* Prevents image breaking across columns */
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-alt);
  padding: 0;
}

.gallery-item img { 
  width: 100%; 
  height: auto;          /* Overrides fixed aspect-ratios */
  object-fit: contain;   /* Displays the entire image completely uncropped */
  display: block; 
}

.gallery-item .placeholder {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  padding: 0.6rem;
}

#lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 12, 12, 0.9);
  z-index: 50;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
#lightbox.open { display: flex; }
#lightbox img { max-width: 100%; max-height: 85vh; border-radius: var(--radius); }
#lightbox .close-btn {
  position: absolute;
  top: 1.4rem;
  right: 1.6rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: #fff;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 20px;
  padding: 0.4rem 0.85rem;
  cursor: pointer;
}

/* ==========================================================================
   Links page
   ========================================================================== */

.link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  background: var(--card-bg);
  box-shadow: var(--shadow-sm);
}
.link-card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); }
.link-card .platform {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.2rem;
}
.link-card .handle { font-weight: 600; }
.link-card .arrow { color: var(--accent); font-size: 1.1rem; }

/* ==========================================================================
   Journal
   ========================================================================== */

.search-box {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-alt);
  color: var(--text);
  margin-bottom: 2.2rem;
}
.search-box:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg);
}

.entry {
  border-bottom: 1px solid var(--border);
  padding: 1.6rem 0;
}
.entry:first-of-type { padding-top: 0; }
.entry .entry-date {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.entry h3 {
  margin: 0.35rem 0 0.5rem;
  cursor: pointer;
}
.entry h3:hover { color: var(--accent); }
.entry .excerpt { color: var(--text-muted); margin-bottom: 0; }
.entry .full-content { display: none; margin-top: 0.9rem; }
.entry.expanded .full-content { display: block; }
.entry.expanded .excerpt { display: none; }
.entry .full-content p { margin-bottom: 1em; }

#no-results {
  display: none;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* ==========================================================================
   Utility
   ========================================================================== */

.copy-feedback {
  font-size: 0.82rem;
  color: var(--accent);
  margin-left: 0.3rem;
}

/* ==========================================================================
   Print (CV)
   ========================================================================== */

@media print {
  .site-header, .site-footer, .hero-actions, #theme-toggle { display: none !important; }
  body { background: #fff; color: #000; font-size: 12pt; }
  main { max-width: 100%; padding: 0; }
  a { color: #000; text-decoration: none; }
  .timeline-item::before { background: #000; }
  h2 { border-bottom: 1px solid #ccc; }
}


/* Desktop nav */
nav.site-nav {
  display: flex;
  gap: 1.4rem;
  flex-wrap: wrap;
  font-size: 0.92rem;
}
#menu-toggle {
  display: none;
}

/* Mobile nav (must come last) */
@media (max-width: 768px) {
  nav.site-nav {
    display: none; /* hide by default */
    flex-direction: column;
    gap: 1rem;
    background: var(--bg-alt);
    padding: 1rem;
    border-radius: 8px;
    position: absolute;
    top: 60px;
    right: 1rem;
    width: 200px;
  }

  nav.site-nav.active {
    display: flex; /* show when toggled */
  }

  #menu-toggle {
    display: block;
  }
}