/* ========================================
   Oriol Canadés - Personal Website
   Minimal, clean, readable design
   Light/Dark mode with teal accent
   ======================================== */

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

/* --- Light theme (default) --- */
:root {
  --color-dark: #1B263B;
  --color-dark-gray: #3A3A3C;
  --color-blue: #415A77;
  --color-gray: #6B7280;
  --color-light-blue: #778DA9;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-border: #e5e7eb;
  --color-accent: #2A9D8F;
  --color-accent-hover: #238578;
  --color-link: #2A9D8F;
  --color-link-hover: #1B263B;
  --color-text: #3A3A3C;
  --color-heading: #1B263B;
  --color-muted: #6B7280;
  --color-code-bg: #f1f5f9;
  --color-code-block-bg: #1B263B;
  --color-code-block-text: #e2e8f0;
  --color-card-bg: #ffffff;
  --color-card-border: #e5e7eb;
  --color-banner-bg: #1B263B;
  --color-banner-text: #ffffff;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --max-width: 720px;
  --header-height: 64px;
}

/* --- Dark theme --- */
[data-theme="dark"] {
  --color-dark: #e2e8f0;
  --color-dark-gray: #cbd5e1;
  --color-blue: #778DA9;
  --color-gray: #94a3b8;
  --color-light-blue: #94a3b8;
  --color-bg: #0f172a;
  --color-bg-alt: #1e293b;
  --color-border: #334155;
  --color-accent: #2dd4bf;
  --color-accent-hover: #5eead4;
  --color-link: #2dd4bf;
  --color-link-hover: #5eead4;
  --color-text: #cbd5e1;
  --color-heading: #e2e8f0;
  --color-muted: #94a3b8;
  --color-code-bg: #1e293b;
  --color-code-block-bg: #1e293b;
  --color-code-block-text: #e2e8f0;
  --color-card-bg: #1e293b;
  --color-card-border: #334155;
  --color-banner-bg: #1e293b;
  --color-banner-text: #e2e8f0;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background 0.3s ease, color 0.3s ease;
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-link-hover);
}

img {
  max-width: 100%;
  height: auto;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2rem 0;
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
  height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s ease;
}

.site-brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.2;
}

.site-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-heading);
}

.site-brand:hover .site-name {
  color: var(--color-accent);
}

.site-tagline {
  font-size: 0.75rem;
  color: var(--color-muted);
  font-weight: 400;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted);
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-heading);
}

.nav-links a.active {
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 2px;
}

/* Language switcher */
.lang-switcher {
  position: relative;
}

.lang-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.3rem 0.6rem;
  font-size: 0.85rem;
  color: var(--color-muted);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: border-color 0.2s ease;
}

.lang-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-heading);
}

.lang-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  min-width: 100px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  z-index: 10;
}

.lang-dropdown a {
  display: block;
  padding: 0.5rem 0.8rem;
  font-size: 0.85rem;
  color: var(--color-text);
}

.lang-dropdown a:hover {
  background: var(--color-bg-alt);
}

.lang-switcher.open .lang-dropdown {
  display: block;
}

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.35rem 0.45rem;
  cursor: pointer;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.theme-toggle:hover {
  border-color: var(--color-accent);
}

.theme-toggle .icon-sun {
  display: none;
}

.theme-toggle .icon-moon {
  display: block;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-heading);
  transition: transform 0.2s ease;
}

/* --- Main Content --- */
.page-content {
  flex: 1;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* --- Hero (Home) --- */
.hero {
  padding: 3rem 0 2rem;
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.25;
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.hero-cta {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  background: var(--color-accent);
  color: #ffffff;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.2s ease;
}

.hero-cta:hover {
  background: var(--color-accent-hover);
  color: #ffffff;
}

.home-section {
  margin-top: 3rem;
}

.home-section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1rem;
}

.home-section-header h2 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-heading);
}

.home-section-header a {
  font-size: 0.85rem;
  color: var(--color-accent);
}

/* --- Page sections --- */
.page-section h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 1.2rem;
}

.page-section h2 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 0.8rem;
}

.page-section p {
  margin-bottom: 1rem;
}

/* About highlights */
.about-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.about-highlight {
  padding: 1.2rem;
  background: var(--color-bg-alt);
  border-radius: 8px;
  border-left: 3px solid var(--color-accent);
}

.about-highlight strong {
  display: block;
  font-size: 0.9rem;
  color: var(--color-heading);
  margin-bottom: 0.3rem;
}

.about-highlight span {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.contact-list {
  list-style: none;
  display: flex;
  gap: 1rem;
}

.contact-list a {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-text);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.contact-list a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.coming-soon {
  color: var(--color-muted);
  font-style: italic;
  padding: 2rem 0;
}

/* --- Project cards --- */
.project-card {
  padding: 1.5rem;
  margin-bottom: 1rem;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 8px;
  transition: border-color 0.2s ease;
}

.project-card:hover {
  border-color: var(--color-accent);
}

.project-card h2 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 0.4rem;
}

.project-card h2 a {
  color: var(--color-heading);
}

.project-card h2 a:hover {
  color: var(--color-accent);
}

.project-link {
  display: inline-block;
  margin-top: 0.6rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-accent);
}

.project-link:hover {
  color: var(--color-accent-hover);
}

.project-card p {
  color: var(--color-text);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* --- Blog list --- */
.post-list {
  margin-top: 0.5rem;
}

.post-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.post-item:last-child {
  border-bottom: none;
}

.post-item-link {
  text-decoration: none;
}

.post-item-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 0.3rem;
  transition: color 0.2s ease;
}

.post-item-link:hover .post-item-title {
  color: var(--color-accent);
}

.post-item-meta {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 0.4rem;
}

.post-item-meta time {
  margin-right: 0.8rem;
}

.post-item-categories {
  color: var(--color-accent);
  font-weight: 500;
}

.post-item-description {
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* --- Post (single) --- */
.post-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.post-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.3;
  margin-bottom: 0.6rem;
}

.post-meta {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.post-meta time {
  margin-right: 0.5rem;
}

.post-author {
  margin-right: 0.5rem;
}

.post-categories {
  color: var(--color-accent);
  font-weight: 500;
}

.post-translation {
  margin-top: 0.5rem;
}

.post-translation a {
  font-size: 0.9rem;
  color: var(--color-accent);
}

.post-content {
  line-height: 1.8;
}

.post-content h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-heading);
  margin: 2rem 0 1rem;
}

.post-content h2 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-heading);
  margin: 1.8rem 0 0.8rem;
}

.post-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-heading);
  margin: 1.5rem 0 0.6rem;
}

.post-content p {
  margin-bottom: 1.2rem;
}

.post-content ul,
.post-content ol {
  margin-bottom: 1.2rem;
  padding-left: 1.5rem;
}

.post-content li {
  margin-bottom: 0.4rem;
}

.post-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 0.5rem 1rem;
  margin: 1.2rem 0;
  color: var(--color-text);
  background: var(--color-bg-alt);
  border-radius: 0 4px 4px 0;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--color-code-bg);
  padding: 0.15rem 0.35rem;
  border-radius: 3px;
  color: var(--color-heading);
}

.post-content pre {
  background: var(--color-code-block-bg);
  color: var(--color-code-block-text);
  padding: 1.2rem;
  border-radius: 6px;
  overflow-x: auto;
  margin: 1.2rem 0;
  line-height: 1.5;
}

.post-content pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: 0.85rem;
}

.post-content img {
  border-radius: 6px;
  margin: 1.2rem 0;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2rem 0;
}

.post-content th,
.post-content td {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--color-border);
  text-align: left;
}

.post-content th {
  background: var(--color-bg-alt);
  font-weight: 600;
}

.post-content strong {
  font-weight: 600;
  color: var(--color-heading);
}

.post-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.back-link {
  font-size: 0.9rem;
  color: var(--color-accent);
}

.back-link:hover {
  color: var(--color-accent-hover);
}

/* --- Footer --- */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-muted);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.8rem;
}

.footer-links a {
  color: var(--color-muted);
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--color-accent);
}

/* --- Cookie Consent Banner --- */
.cookie-banner {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-banner-bg);
  color: var(--color-banner-text);
  padding: 1rem 2rem;
  z-index: 200;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-size: 0.9rem;
}

.cookie-banner.visible {
  display: flex;
}

.cookie-banner p {
  margin: 0;
  flex: 1;
}

.cookie-buttons {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.btn {
  padding: 0.4rem 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  transition: opacity 0.2s ease;
}

.btn:hover {
  opacity: 0.9;
}

.btn-primary {
  background: var(--color-accent);
  color: #ffffff;
}

.btn-secondary {
  background: transparent;
  color: var(--color-banner-text);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .site-header {
    padding: 0 1rem;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem;
    gap: 0.8rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1rem;
    padding: 0.3rem 0;
  }

  .nav-links a.active {
    border-bottom: none;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .page-section h1 {
    font-size: 1.4rem;
  }

  .post-title {
    font-size: 1.4rem;
  }

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

  .contact-list {
    flex-direction: column;
    gap: 0.5rem;
  }

  .cookie-banner {
    flex-direction: column;
    text-align: center;
  }
}