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

/* ===== Google Font Import ===== */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;700&display=swap');

/* ===== Theme Variables ===== */
:root {
  --font-family: 'Syne', sans-serif;
  --transition-speed: 0.3s;
}

/* Palette 1 - Blue */
[data-theme="palette-1"] {
  --color-primary: #003964;
  --color-secondary: #6FB4E8;
  --color-background: #D7EEFF;
  --color-text: #003964;
  --color-text-muted: #4a7a9e;
  --color-accent: #6FB4E8;
  --color-border: rgba(0, 57, 100, 0.15);
  --color-card-bg: rgba(255, 255, 255, 0.5);
}

/* Palette 2 - Green */
[data-theme="palette-2"] {
  --color-primary: #3A4438;
  --color-secondary: #7BA876;
  --color-background: #F4F6F1;
  --color-text: #3A4438;
  --color-text-muted: #6b7a68;
  --color-accent: #7BA876;
  --color-border: rgba(58, 68, 56, 0.15);
  --color-card-bg: rgba(255, 255, 255, 0.5);
}

/* Palette 3 - Pink */
[data-theme="palette-3"] {
  --color-primary: #6B2E3F;
  --color-secondary: #E8998D;
  --color-background: #FFF5F3;
  --color-text: #6B2E3F;
  --color-text-muted: #a05a6a;
  --color-accent: #E8998D;
  --color-border: rgba(107, 46, 63, 0.15);
  --color-card-bg: rgba(255, 255, 255, 0.5);
}

/* Palette 4 - Purple */
[data-theme="palette-4"] {
  --color-primary: #3D2E5C;
  --color-secondary: #9B87C7;
  --color-background: #F7F4FF;
  --color-text: #3D2E5C;
  --color-text-muted: #6b5a8a;
  --color-accent: #9B87C7;
  --color-border: rgba(61, 46, 92, 0.15);
  --color-card-bg: rgba(255, 255, 255, 0.5);
}

/* Palette 5 - Golden */
[data-theme="palette-5"] {
  --color-primary: #5C4A2E;
  --color-secondary: #D4A574;
  --color-background: #FFF9F0;
  --color-text: #5C4A2E;
  --color-text-muted: #8a7a5e;
  --color-accent: #D4A574;
  --color-border: rgba(92, 74, 46, 0.15);
  --color-card-bg: rgba(255, 255, 255, 0.5);
}

/* ===== Base Styles ===== */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-speed), opacity var(--transition-speed);
}

a:hover {
  opacity: 0.8;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

h1 {
  font-size: 3rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  font-weight: 400;
  line-height: 1.7;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.page-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* ===== Columns in Person Page ===== */
.row {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 24px;
}

.column {
  flex: 1;
  min-width: 320px;
  padding-right: 18px;
}

/* ===== Header & Navigation ===== */
.header {
  padding: 40px 0 32px;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

/* Centered header variant for home page */
.header.header-centered .container {
  max-width: 900px;
  justify-content: center;
  gap: 80px;
}

.logo {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
}

.logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.nav {
  display: flex;
  align-items: center;
  padding-top: 16px;
}

.nav-list {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--color-accent);
  position: relative;
  padding-bottom: 6px;
}

.nav-link.active {
  color: var(--color-text);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1.5px;
  background-color: var(--color-text);
}

.nav-link:hover {
  color: var(--color-text);
  opacity: 1;
}

/* Mobile Navigation */
.mobile-nav {
  display: none;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  padding-top: 8px;
}

.mobile-nav .nav-link {
  font-size: 1.0rem;
  padding-bottom: 6px;
}

.mobile-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1.5px;
  background-color: var(--color-text);
}

/* ===== Main Content ===== */
main {
  flex: 1;
  padding: 40px 0 80px;
}

/* ===== Home Page ===== */
.home-content {
  max-width: 520px;
  margin: 40px auto 0;
  padding: 0 24px;
}

.home-content h1 {
  margin-bottom: 28px;
  font-size: 2.75rem;
}

.home-content p {
  margin-bottom: 24px;
  font-size: 1.0625rem;
  line-height: 1.75;
}

/* ===== About/Person Page ===== */
.about-content {
  max-width: 560px;
  margin: 60px auto 0;
}

.about-content h1 {
  margin-bottom: 24px;
}

.about-content p {
  margin-bottom: 20px;
  font-size: 1.125rem;
}

/* ===== Projects Page ===== */
.projects-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 80px;
  padding-top: 40px;
}

.projects-sidebar {
  position: sticky;
  top: 40px;
  align-self: start;
}

.projects-sidebar h1 {
  font-size: 2.75rem;
  margin-bottom: 24px;
}

.projects-sidebar p {
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: 24px;
  line-height: 1.7;
}

.filter-tabs {
  display: flex;
  gap: 16px;
  align-items: center;
}

.filter-tab {
  background: none;
  border: none;
  font-family: var(--font-family);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 20px;
  transition: all var(--transition-speed);
}

.filter-tab.active {
  background-color: var(--color-card-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.filter-tab:hover {
  color: var(--color-text);
}

.projects-list {
  display: flex;
  flex-direction: column;
}

.project-item {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
}

.project-item:first-child {
  padding-top: 0;
}

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

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.project-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
}

.project-title a {
  color: inherit;
}

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

.project-tags {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-left: 24px;
}

.project-description {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 600px;
}

/* ===== Single Project Page ===== */
.project-single {
  max-width: 900px;
  margin: 0 auto;
}

.project-meta-row {
  display: flex;
  gap: 24px;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.meta-item {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
}

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

.project-single h1 {
  font-size: 3rem;
  margin-bottom: 8px;
}

.project-single h1 span {
  color: var(--color-accent);
  display: block;
}

.project-intro {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: 48px;
  max-width: 500px;
  line-height: 1.6;
}

.project-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.project-detail-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.detail-block h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 4px;
  font-weight: 400;
}

.detail-block p {
  font-size: 1rem;
  color: var(--color-text);
}

.visit-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

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

.project-hero-image {
  width: 100%;
  height: 400px;
  background-color: var(--color-primary);
  border-radius: 16px;
  margin-bottom: 60px;
  overflow: hidden;
}

.project-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Project Body Content */
.project-body {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 60px;
}

.project-toc {
  position: sticky;
  top: 40px;
  align-self: start;
}

.project-toc h5 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  font-weight: 400;
}

.project-toc ul {
  list-style: none;
}

.project-toc li {
  margin-bottom: 8px;
}

.project-toc a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  display: block;
  padding-left: 12px;
  border-left: 2px solid transparent;
}

.project-toc a:hover,
.project-toc a.active {
  color: var(--color-text);
  border-left-color: var(--color-accent);
}

.project-content section {
  margin-bottom: 60px;
}

.project-content h2 {
  font-size: 1.75rem;
  margin-bottom: 20px;
}

.project-content h3 {
  font-size: 1.125rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.project-content p {
  margin-bottom: 16px;
  color: var(--color-text-muted);
}

.problem-list {
  list-style: none;
  margin: 24px 0;
}

.problem-list li {
  padding-left: 24px;
  position: relative;
  margin-bottom: 12px;
  color: var(--color-text-muted);
}

.problem-list li::before {
  content: '×';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.content-image {
  width: 100%;
  border-radius: 12px;
  margin: 32px 0;
  background-color: var(--color-border);
}

.content-image img {
  width: 100%;
  border-radius: 12px;
}

.image-caption {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 12px;
}

.color-tokens {
  display: flex;
  gap: 16px;
  margin: 24px 0;
}

.color-token {
  padding: 20px 24px;
  border-radius: 8px;
  text-align: center;
}

.color-token span {
  display: block;
  font-size: 0.75rem;
  margin-top: 8px;
}

.outcome-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 32px 0;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Next Project */
.next-project {
  background-color: var(--color-primary);
  color: var(--color-background);
  padding: 60px;
  border-radius: 16px;
  margin-top: 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.next-project-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.7;
  margin-bottom: 8px;
}

.next-project h3 {
  font-size: 2rem;
  color: var(--color-background);
}

.next-project-arrow {
  width: 48px;
  height: 48px;
  border: 2px solid var(--color-background);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-background);
  transition: all var(--transition-speed);
}

.next-project:hover .next-project-arrow {
  background-color: var(--color-background);
  color: var(--color-primary);
}

/* ===== Thoughts Page ===== */
.thoughts-header {
  max-width: 600px;
  margin-bottom: 60px;
}

.thoughts-header h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.thoughts-header p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.thoughts-list {
  max-width: 700px;
}

.thought-item {
  margin-bottom: 48px;
}

.thought-date {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.thought-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.thought-title a {
  color: inherit;
}

.thought-title a:hover {
  color: var(--color-accent);
}

.thought-excerpt {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}

.read-more {
  font-size: 1rem;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.read-more:hover {
  gap: 8px;
}

.load-more-btn {
  display: block;
  margin: 48px auto 0;
  padding: 14px 32px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 30px;
  font-family: var(--font-family);
  font-size: 1rem;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-speed);
}

.load-more-btn:hover {
  background-color: var(--color-text);
  color: var(--color-background);
}

/* ===== Footer ===== */
.footer {
  padding: 24px 0 3px;
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
}


.listening-section h4 {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.now-playing {
  display: flex;
  align-items: center;
  gap: 14px;
}

.album-art {
  width: 52px;
  height: 52px;
  border-radius: 6px;
  background-color: var(--color-border);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.album-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.track-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.track-name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 2px;
  text-decoration: underline;
}

.track-artist {
  font-size: 0.8125rem;
  color: var(--color-accent);
}

.footer-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 28px;
}

.social-links {
  display: flex;
  gap: 28px;
  padding-top: 32px;
}

.social-link {
  font-size: 1.0rem;
  color: var(--color-accent);
}

.social-link:hover {
  color: var(--color-text);
}

/* Palette Switcher */
.palette-switcher {
  display: flex;
  gap: 16px;
  padding-top: 32px;
}

.palette-dot {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 0;
  cursor: pointer;
  position: relative;
  transition: transform var(--transition-speed), border-color var(--transition-speed);
}

.palette-dot:hover {
  transform: scale(1.1);
}

.palette-dot.active::after {
  content: "";
  position: absolute;
  inset: -4px;                 /* makes it 2px bigger all around */
  border-radius: 50%;
  border: 1px solid var(--color-text);  /* ring color */
  pointer-events: none;
}

.palette-dot[data-palette="1"] { background-color: #003964; }
.palette-dot[data-palette="2"] { background-color: #3A4438; }
.palette-dot[data-palette="3"] { background-color: #6B2E3F; }
.palette-dot[data-palette="4"] { background-color: #3D2E5C; }
.palette-dot[data-palette="5"] { background-color: #5C4A2E; }

.copyright {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Offline Status */
.offline-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.offline-icon {
  width: 24px;
  height: 24px;
}

/* ===== Mobile Styles ===== */
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .header {
    padding: 28px 0;
  }

  .header .container {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }

  .header.header-centered .container {
    justify-content: space-between;
    gap: 0;
  }

  .logo {
    width: 64px;
    height: 64px;
  }

  .nav {
    display: none;
  }

  .mobile-nav {
    display: flex;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  main {
    padding: 24px 0 60px;
  }

  /* Home Mobile */
  .home-content {
    margin: 48px 0 0;
    padding: 0;
  }

  .home-content h1 {
    font-size: 2.5rem;
    margin-bottom: 24px;
  }

  .home-content p {
    font-size: 1rem;
    margin-bottom: 20px;
  }

  /* About Mobile */
  .about-content {
    margin: 48px 0 0;
  }

  /* Rows in Person Page */
.column {
  flex: 1;
  min-width: 320px;
  padding-bottom: 24px;
}

.row {
    border: none;
    margin-bottom: 2px;
}

  /* Projects Mobile */
  .projects-layout {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-top: 24px;
  }

  .projects-sidebar {
    position: static;
  }

  .projects-sidebar h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
  }

  .project-item {
    padding: 32px 0;
  }

  .project-header {
    flex-direction: column;
    gap: 8px;
  }

  .project-title {
    font-size: 1.5rem;
  }

  .project-tags {
    margin-left: 0;
    font-size: 0.6875rem;
  }

  /* Single Project Mobile */
  .project-single h1 {
    font-size: 2.25rem;
  }

  .project-intro {
    font-size: 1.125rem;
  }

  .project-details {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .project-detail-col {
    gap: 16px;
  }

  .project-hero-image {
    height: 280px;
    margin-bottom: 40px;
  }

  .project-body {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .project-toc {
    position: static;
    display: none;
  }

  .project-content h2 {
    font-size: 1.5rem;
  }

  .color-tokens {
    flex-wrap: wrap;
    gap: 12px;
  }

  .color-token {
    padding: 16px 18px;
    font-size: 0.75rem;
  }

  .outcome-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .stat-number {
    font-size: 1.75rem;
  }

  .next-project {
    flex-direction: column;
    gap: 24px;
    padding: 40px 24px;
    text-align: center;
  }

  /* Thoughts Mobile */
  .thoughts-header h1 {
    font-size: 2.5rem;
  }

  .thought-title {
    font-size: 1.375rem;
  }

  .load-more-btn {
    width: 100%;
    max-width: 300px;
  }

  /* Footer Mobile */
  .footer {
    padding: 40px 0 24px;
  }

  .footer-content {
    flex-direction: column;
    gap: 40px;
  }

  .listening-section {
    width: 100%;
  }

  .footer-right {
    align-items: flex-start;
    width: 100%;
    gap: 32px;
  }

  /* Show social links in footer-right on mobile */
  .footer-right .social-links {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .social-links {
    flex-direction: column;
    gap: 14px;
  }

  .footer-bottom {
    flex-direction: column-reverse;
    gap: 20px;
    align-items: flex-start;
  }

  /* Hide social links in footer-bottom on mobile */
  .footer-bottom .social-links {
    display: none;
  }

  .palette-switcher {
    margin-top: 8px;
  }
}

/* ===== Utility Classes ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== Animations ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}