/* Dark theme for portfolio2.html — styles2.css */

:root {
  --bg: #0b0f13;
  --surface: #0f1619;
  --card: #11161a;
  --muted: #98a0a6;
  --text: #e6eef2;
  --accent: #56b6f9; /* blue */
  --accent-2: #7c5cff; /* purple */
  --danger: #ff6b6b;
  --glass: rgba(255, 255, 255, 0.03);
  --border: rgba(255, 255, 255, 0.06);
  --shadow: 0 6px 18px rgba(2, 6, 9, 0.6);
  --radius: 10px;
  font-family: "Segoe UI", Roboto, -apple-system, "Helvetica Neue", Arial;
}

/* Global */
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  /* Unified solid background to prevent perceived shift from dark blue to near-black */
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.45;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem;
}
.page {
  padding: 2rem 1rem;
  max-width: 960px; /* center and constrain main content width */
  margin: 0 auto;
}

/* Topbar/header */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  /* Solid surface color for consistency across pages */
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 30;
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
}
.logo .dot {
  color: var(--accent-2);
}

.menu-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.35rem 0.6rem;
  border-radius: 8px;
  font-size: 1.05rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.menu-toggle:hover {
  background: rgba(86, 182, 249, 0.15);
}
.menu-toggle:focus {
  outline: 2px solid rgba(86, 182, 249, 0.15);
  outline-offset: 2px;
}

.topbar-right .mainnav ul {
  display: flex;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.mainnav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.5rem 0.65rem;
  border-radius: 8px;
  font-weight: 600;
}
.mainnav a:hover {
  color: var(--text);
  background: var(--glass);
}
.mainnav .active a {
  color: var(--text);
  background: linear-gradient(
    90deg,
    rgba(124, 92, 255, 0.12),
    rgba(86, 182, 249, 0.06)
  );
  border: 1px solid rgba(124, 92, 255, 0.08);
}

/* Sidebar */
.sidebar {
  width: 220px;
  padding: 1rem;
  position: fixed;
  left: 1rem;
  top: 72px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  backdrop-filter: blur(6px);
  color: var(--muted);
  display: none;
  z-index: 40;
}
.sidebar.active {
  display: block;
}
.sidebar h3 {
  color: var(--text);
  margin-top: 0;
}
.sidebar ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.sidebar a {
  display: block;
  color: var(--muted);
  padding: 0.45rem;
  border-radius: 6px;
  text-decoration: none;
}
.sidebar a:hover {
  color: var(--text);
  background: var(--glass);
}

/* Main content layout — leave space for sidebar on wider screens (moved into media query)
   The sidebar will be hidden on desktop so the submenu only appears on mobile via the
   hamburger. */

/* Center the main page content and headings for a cleaner layout */
main.container.page {
  display: flex;
  flex-direction: column;
  align-items: center;
}

main.container.page > h1,
main.container.page > p {
  text-align: center;
}

/* Ensure content sections stretch full width inside the centered page */
main.container.page > section {
  width: 100%;
}

/* Page header */
h1 {
  margin-top: 0;
  color: var(--text);
}
p {
  color: var(--muted);
}

/* Projects grid */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.25rem;
}
.project {
  display: block; /* anchor becomes block */
  background: var(--card);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  color: inherit;
  text-decoration: none;
}
.project:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(2, 6, 9, 0.7);
}
.project img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.03);
  display: block;
  margin-bottom: 0.7rem;
}
.project h3 {
  margin: 0 0 0.35rem 0;
  color: var(--text);
}
.project p {
  margin: 0 0 0.85rem 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.project:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(2, 6, 9, 0.7);
}

/* Make titles stand out in card links */
.project h3 {
  margin-top: 0.2rem;
}

/* Desktop: force 2 columns (2x2 for four cards) */
@media (min-width: 700px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border: none;
  font-weight: 700;
}
.btn.small {
  padding: 0.4rem 0.6rem;
  font-size: 0.9rem;
}

.notice {
  margin-top: 1rem;
  padding: 0.8rem;
  border-radius: 10px;
  background: linear-gradient(
    90deg,
    rgba(124, 92, 255, 0.06),
    rgba(86, 182, 249, 0.03)
  );
  border: 1px solid rgba(255, 255, 255, 0.03);
  color: var(--text);
}
.notice .u-upcase {
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

/* Footer */
.footer {
  margin-top: 2.5rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
}

/* Center footer content inside its container */
.footer .container {
  text-align: center;
}

/* Responsive: collapse sidebar below 900px */
@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: 1rem;
    right: 1rem;
    top: 72px;
    width: auto;
    max-width: 280px;
  }
  main.container.page {
    margin-left: 0;
    padding-top: 0;
  }
  .topbar {
    position: sticky;
  }
  .topbar-right .mainnav {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
}

@media (min-width: 901px) {
  /* On large screens hide the mobile sidebar/submenu so the left submenu only
     appears in mobile form (via hamburger). Keep desktop navigation in the topbar. */
  .sidebar {
    display: none;
  }

  /* Remove the left margin when sidebar is hidden */
  main.container.page {
    /* Keep the page centered on desktop */
    margin-left: auto;
    margin-right: auto;
  }

  .menu-toggle {
    display: none;
  }
}

/* Small print: make focus states accessible */
a:focus,
button:focus {
  outline: 2px dashed rgba(86, 182, 249, 0.18);
  outline-offset: 3px;
}

/* Utility classes (used in HTML) */
.u-upcase {
  text-transform: uppercase;
}

/* Project detail page styles */
.project-hero {
  text-align: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}
.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
  color: var(--text);
  border: 1px solid rgba(124, 92, 255, 0.25);
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    rgba(124, 92, 255, 0.15),
    rgba(86, 182, 249, 0.1)
  );
  margin-bottom: 0.35rem;
}
.project-title {
  margin: 0.2rem 0;
}
.project-subtitle {
  color: var(--muted);
  margin-top: 0;
}

.btn.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.project-overview {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}
@media (min-width: 800px) {
  .project-overview {
    grid-template-columns: 1.2fr 0.8fr;
  }
}
.meta-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}
.meta-card h3 {
  margin-top: 0;
}
.meta-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--muted);
}
.meta-card li {
  padding: 0.25rem 0;
}

.section-title {
  margin: 1.25rem 0 0.5rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
}

/* Force 2x2 layout for exactly four features on wider screens */
@media (min-width: 720px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.9rem;
}
.feature h4 {
  margin: 0.4rem 0;
  color: var(--text);
}
.feature p {
  margin: 0;
  color: var(--muted);
}
.feature-icon {
  font-size: 1.25rem;
}

.screenshot {
  width: 100%;
  height: 360px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
}

/* Modifier: show full image without cropping for specific cases */
.screenshot--contain {
  height: auto;
  max-height: 640px; /* prevent runaway height on huge images */
  object-fit: contain;
  background: var(--surface); /* subtle backdrop for any letterboxing */
}

/* Portrait screenshots layout (Project 2) */
.screenshots-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-top: 0.75rem;
}
.screenshot--landscape {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  width: 100%;
  background: var(--surface); /* backdrop for letterboxing */
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 10px;
}
.screenshot--portrait {
  aspect-ratio: 9 / 16; /* portrait ratio */
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 14px;
}
.screenshot-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}
.screenshot-wrapper--landscape {
  aspect-ratio: 16 / 9;
  width: 100%;
  max-width: 700px; /* constrain width for better centering */
  margin: 0 auto; /* center the card */
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
}
.screenshot-wrapper figcaption {
  font-size: 0.7rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--muted);
}