/* styles.css
   Global stylesheet for the personal site.
   Uses custom properties for colours and typography.
*/

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

/* CSS variables for colours and fonts */
:root {
  --carbon-black: #0b0c10;
  --dark-grey: #1a1a1d;
  --light-grey: #c5c6c7;
  --matte-red: #b21e35;
  --header-height: 60px;
  --footer-height: 60px;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Roboto', sans-serif;
}

body {
  font-family: var(--font-body);
  color: var(--light-grey);
  background-color: var(--carbon-black);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

a {
  color: var(--light-grey);
  text-decoration: none;
  transition: color 0.3s ease, background-color 0.3s ease;
}

/*
 * Remove the dashed outline on focused links. The dashed outline was
 * originally used to indicate keyboard focus but resulted in a
 * distracting red box around links after clicking. Setting the
 * outline to none avoids this effect while preserving hover/focus
 * colour changes defined elsewhere.
 */
a:focus {
  outline: none;
  outline-offset: 0;
}

/* Header styles */
.header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  background-color: var(--carbon-black);
  border-bottom: 1px solid var(--dark-grey);
  z-index: 100;
}

.logo a {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.8rem;
  color: var(--matte-red);
}

.nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav a {
  font-family: var(--font-heading);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  color: var(--light-grey);
}

/* Highlight the current page's navigation link in the matte red accent. */
.nav a.active {
  color: var(--matte-red);
}

.nav a:hover,
.nav a:focus {
  color: var(--matte-red);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--light-grey);
  transition: background-color 0.3s ease;
}

.hamburger:hover span {
  background-color: var(--matte-red);
}

/* Footer styles */
/*
 * Footer styles
 * The footer should blend seamlessly with the carbon black background of
 * the pages. Rather than colouring the entire bar red, the text and
 * icons use the matte red accent colour by default. When hovering
 * over the footer the copy and icons fade to the light grey/silver
 * colour but the background remains unchanged. A subtle top border
 * helps delineate the footer from the main content.
 */
.footer {
  height: var(--footer-height);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  background-color: var(--carbon-black);
  color: var(--matte-red);
  font-size: 0.8rem;
  border-top: 1px solid var(--dark-grey);
}

.footer-social {
  display: flex;
  gap: 1rem;
}

/* Footer social icons: default fill is dark when on the red footer.
   The fill swaps to red when hovering the entire footer. */
/*
 * Default footer icon colour uses the matte red accent so the icons
 * stand out against the carbon black footer. When the user hovers over
 * the footer the icons transition to the light grey colour defined
 * globally.
 */
.footer-social a svg {
  width: 20px;
  height: 20px;
  fill: var(--matte-red);
  transition: fill 0.3s ease;
}

/*
 * Individual icon hover: change only the hovered social icon to the
 * light grey/silver colour. Other icons and the copyright text
 * remain in the matte red accent colour.
 */
.footer-social a:hover svg,
.footer-social a:focus svg {
  fill: var(--light-grey);
}

/*
 * Remove the footer-wide hover effect. The copyright text retains
 * the matte red accent at all times and does not react to mouse
 * interaction. Social icons will change colour individually on
 * hover (see rules below).
 */

/* Main container */
main {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  height: calc(100vh - var(--header-height) - var(--footer-height));
  padding: 1rem;
}

/* Home page */
.home-container {
  display: flex;
  align-items: center;
  gap: 3rem;
}

/*
 * Profile image styling for the landing page. On the home page the
 * portrait should simply float on the dark background without any
 * coloured border. Keep a slight rounding on the corners for a
 * softer appearance.
 */
.profile-img {
  max-width: 300px;
  width: 35vw;
  /* remove the matte red border from around the portrait */
  border: none;
  border-radius: 8px;
}

.home-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.home-text .greeting {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--light-grey);
}

.home-text .name {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4rem);
  color: var(--matte-red);
  margin-bottom: 1rem;
}

.social-icons {
  display: flex;
  gap: 1rem;
}

.social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 2px solid var(--matte-red);
  border-radius: 50%;
  color: var(--light-grey);
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

.social-icons a svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.social-icons a:hover,
.social-icons a:focus {
  background-color: var(--matte-red);
  color: var(--carbon-black);
  transform: translateY(-2px);
}

/* About page */
/*
 * Layout container for the about page. Previously this used a dark card
 * panel with a matte red border and shadow. To satisfy the updated
 * requirements, remove the panel styling entirely – the content floats
 * directly on the page background. Maintain spacing and flexible
 * alignment so the image, heading and text still present well on
 * desktop and mobile.
 */
.about-card {
  display: flex;
  align-items: center;
  gap: 2rem;
  /* Remove panel styling */
  background-color: transparent;
  padding: 1.5rem;
  border-radius: 0;
  box-shadow: none;
  max-width: 900px;
  width: 100%;
}

/*
 * Portrait on the about page. Remove the coloured border to keep the
 * image clean against the dark background. Preserve the rounded
 * corners for consistency with the landing page portrait.
 */
.about-card img {
  width: 40%;
  max-width: 280px;
  border: none;
  border-radius: 8px;
}

.bio {
  flex: 1;
}

.bio h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--matte-red);
  margin-bottom: 1rem;
}

.bio p {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  line-height: 1.5;
  color: var(--light-grey);
}

/* Gallery page */
/*
 * Container for the gallery page. Align children centrally and
 * allow them to take up only as much space as needed. The width is
 * kept to 100% to ensure the heading spans the available space.
 */
.main-gallery {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.main-gallery h2 {
  font-family: var(--font-heading);
  color: var(--matte-red);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.gallery-grid {
  /*
   * The gallery grid normally filled the entire width of the page. To
   * create a more compact, centred gallery the grid is constrained
   * horizontally and given an aspect ratio. This ensures the six
   * thumbnails fit neatly without stretching edge‑to‑edge. The
   * aspect-ratio of 3/2 maintains two rows across three columns. On
   * smaller screens the media queries below adjust the column count
   * while still respecting the max-width and aspect ratio.
   */
  flex-grow: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  /* With nine images the grid now has three rows and three columns.
     The aspect ratio is set to 1:1 so the grid forms a square. */
  grid-template-rows: repeat(3, 1fr);
  gap: 1rem;
  width: 60%;
  max-width: 600px;
  /* Square aspect ratio for a 3×3 grid */
  aspect-ratio: 1 / 1;
  margin: 0 auto;
}

.gallery-grid a {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 6px;
  /* Enable a 3D perspective for a subtle tilt/parallax effect on hover */
  perspective: 600px;
}

.gallery-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 2px solid var(--dark-grey);
  border-radius: 6px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.gallery-grid img:hover,
.gallery-grid img:focus {
  border-color: var(--matte-red);
  transform: scale(1.05);
}

/* Music page */
.music-section {
  text-align: center;
}

.music-section h2 {
  font-family: var(--font-heading);
  color: var(--matte-red);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 0.5rem;
}

.music-section p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--light-grey);
}

/* Contact page */
.contact-section {
  text-align: center;
  max-width: 600px;
}

.contact-section h2 {
  font-family: var(--font-heading);
  color: var(--matte-red);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 0.5rem;
}

.contact-section p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  margin-bottom: 1rem;
  color: var(--light-grey);
}

/* Divider used to separate headings from body text on About and Contact pages */
/*
 * Horizontal dividing line used in the About and Contact pages. The line
 * spans the full width of its parent container so that it aligns with
 * the width of the text block. It scales responsively with the page
 * size. A small vertical margin separates it from adjacent headings
 * and paragraphs.
 */
.divider {
  width: 100%;
  height: 2px;
  background-color: var(--matte-red);
  margin: 0.75rem 0;
  border-radius: 1px;
}

.contact-social {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.contact-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 2px solid var(--matte-red);
  border-radius: 50%;
  color: var(--light-grey);
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

.contact-social a svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.contact-social a:hover,
.contact-social a:focus {
  background-color: var(--matte-red);
  color: var(--carbon-black);
  transform: translateY(-2px);
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .about-card {
    flex-direction: column;
    text-align: center;
  }
  .about-card img {
    width: 60%;
    margin-bottom: 1rem;
  }
  .home-container {
    flex-direction: column;
    text-align: center;
  }
  .home-text {
    align-items: center;
  }
}

@media (max-width: 768px) {
  .nav ul {
    flex-direction: column;
    gap: 1rem;
  }
  .nav {
    position: absolute;
    top: var(--header-height);
    right: 0;
    background-color: var(--dark-grey);
    width: 200px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    padding: 1rem;
  }
  .nav.active {
    transform: translateX(0);
  }
  .hamburger {
    display: flex;
  }
  .nav a {
    display: block;
    padding: 0.5rem 0;
  }
  /* Gallery layout on smaller screens */
  .gallery-grid {
    /* Maintain a 3×3 layout for nine images on smaller screens
       while scaling the overall size down */
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    width: 80%;
    max-width: 500px;
    aspect-ratio: 1 / 1;
  }
}

@media (max-width: 480px) {
  /* Extra small screens still keep a 3×3 grid but shrink width further */
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    width: 90%;
    max-width: 400px;
    aspect-ratio: 1 / 1;
  }
}

/* On very wide screens, allow the gallery to grow larger so it doesn't look sparse.
   The width is reduced to 40% of the viewport but capped at 900px. */
@media (min-width: 1200px) {
  .gallery-grid {
    width: 40%;
    max-width: 900px;
  }
}

/* ------------------------------------------------------------------
   Error page styles

   These classes are used on the 404.html and 500.html pages. They
   centre the content vertically and horizontally and provide a
   consistent appearance that matches the rest of the site. The button
   inherits the accent colour and inverts on hover for an inviting
   call‑to‑action.  */

.error-page {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.error-container {
  max-width: 600px;
  width: 80%;
}

.error-code {
  font-family: var(--font-heading);
  font-size: clamp(4rem, 10vw, 8rem);
  color: var(--matte-red);
  margin-bottom: 0.5rem;
}

.error-message {
  font-size: clamp(1rem, 3vw, 1.5rem);
  color: var(--light-grey);
  margin-bottom: 2rem;
}

.button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--matte-red);
  border-radius: 4px;
  color: var(--light-grey);
  text-decoration: none;
  transition: background-color 0.3s ease, color 0.3s ease;
  font-family: var(--font-heading);
  font-weight: 600;
}

.button:hover,
.button:focus {
  background-color: var(--matte-red);
  color: var(--carbon-black);
}

/*
 * Error page split layout
 *
 * The error pages (404 and 500) display an illustration on the left and the error
 * message on the right with a vertical divider. On smaller screens the
 * layout stacks vertically and hides the divider for better readability.
 */

.error-layout {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80%;
  max-width: 900px;
  margin: 0 auto;
  gap: 0;
}

.error-img {
  flex: 0 0 40%;
  max-width: 40%;
}

.error-img img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

.error-divider {
  width: 2px;
  background-color: var(--matte-red);
  /* Stretch divider to match the height of the layout */
  align-self: stretch;
  margin: 0 2rem;
}

.error-content {
  flex: 1;
  text-align: left;
}

@media (max-width: 768px) {
  .error-layout {
    flex-direction: column;
  }
  .error-img {
    max-width: 60%;
    margin-bottom: 1.5rem;
  }
  .error-divider {
    display: none;
  }
  .error-content {
    text-align: center;
  }
}

.bio p {
  margin-bottom: 1.2rem;
  line-height: 1.7;
}

.bio-intro {
  font-size: 1.05rem;
}

.bio-music {
  opacity: 0.95;
}

.about-signoff {
  margin-top: 1.8rem;
  font-style: italic;
  opacity: 0.85;
}

.bio a {
  color: var(--accent-red);
  font-style: italic;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease, text-shadow 0.2s ease;
}

.bio a:hover,
.bio a:focus {
  color: #ff4a4a;
  opacity: 0.9;
  text-shadow: 0 0 6px rgba(255, 74, 74, 0.35);
}

/* === Music page styles ===
 * These rules style the music page without affecting other pages. They control
 * the layout of the now playing section and the top lists.
 */
.music .music-container {
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: left;
}

.music .now-playing-block {
  width: 100%;
  margin-bottom: 2rem;
}

.music .now-playing-content {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.music .now-playing-content img {
  width: 200px;
  height: 200px;
  object-fit: cover;
  border-radius: 6px;
  border: 2px solid var(--matte-red);
}

.music .now-playing-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.music .now-playing-info .song-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--matte-red);
  line-height: 1.2;
  margin-bottom: 0.2rem;
}

.music .now-playing-info .artist-name {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--light-grey);
  margin-bottom: 0.2rem;
}

.music .now-playing-info .play-count {
  font-size: 0.8rem;
  color: var(--light-grey);
}

.music .top-artists-blocks {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
}

.music .top-artists-block {
  flex: 1;
  min-width: 250px;
}

.music .top-artists-block h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--matte-red);
  margin-bottom: 1rem;
  text-align: left;
}

.music .top-artists-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.music .top-artists-block li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.music .top-artists-block li img {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: 4px;
  border: 2px solid var(--dark-grey);
}

.music .top-artists-block li span {
  font-size: 1rem;
  color: var(--light-grey);
}

.music .lastfm-link-wrapper {
  width: 100%;
  margin-top: 2rem;
  text-align: center;
}

.music .lastfm-button {
  display: inline-block;
  background-color: var(--matte-red);
  color: var(--light-grey);
  padding: 0.6rem 1.6rem;
  font-family: var(--font-heading);
  font-weight: 600;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

.music .lastfm-button:hover,
.music .lastfm-button:focus {
  background-color: #d82745;
}