/* CANOPY — Student-led, process-first, calm, precise */

:root {
  --color-bg: #faf9f6;
  --color-bg-subtle: #f3f1eb;
  --color-text: #1a1a18;
  --color-text-muted: #5c5c58;
  --color-accent: #2d5a3d;
  --color-accent-hover: #3d6f4d;
  --color-border: #e5e3dc;
  --font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: "Fraunces", "Georgia", serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --radius: 6px;
  --nav-height: 4rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  position: relative;
  min-height: 100%;
}

/* ----- Lively animated background ----- */
.site-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
}

.site-bg-gradient {
  position: absolute;
  inset: -50%;
  background:
    radial-gradient(ellipse 80% 60% at 20% 20%, rgba(45, 90, 61, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 70% 50% at 80% 80%, rgba(61, 111, 77, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 50% 50%, rgba(243, 241, 235, 0.9) 0%, transparent 60%);
  animation: bg-drift 20s ease-in-out infinite alternate;
}

.site-bg-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(45, 90, 61, 0.06) 1px, transparent 0);
  background-size: 32px 32px;
  animation: bg-dots-shift 30s linear infinite;
}

@keyframes bg-drift {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-3%, -2%) scale(1.05); }
}

@keyframes bg-dots-shift {
  0% { background-position: 0 0; }
  100% { background-position: 32px 32px; }
}

/* Content sits above background */
main,
.site-footer {
  position: relative;
  z-index: 0;
}

/* ----- Tubes hero on homepage ----- */
.tubes-home {
  touch-action: none;
}

.tubes-canvas {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
  z-index: -1;
}

.hero-tubes-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 40rem;
  gap: var(--space-md);
}

.tubes-home .hero h1,
.tubes-home .hero h2,
.tubes-home .hero p,
.tubes-home .hero .hero-micro,
.tubes-home .hero .hero-stats span {
  color: #fff;
  text-shadow: 0 0 20px rgba(0, 0, 0, 1);
}

.tubes-home .hero-subhead {
  color: rgba(255, 255, 255, 0.9);
}

.tubes-home .hero-support,
.tubes-home .hero-micro,
.tubes-home .hero-stats span {
  color: rgba(255, 255, 255, 0.9);
}

.tubes-home .btn-secondary {
  color: #fff;
  background: rgba(0, 0, 0, 0.35);
  border-color: rgba(255, 255, 255, 0.25);
}

/* Make nav readable on dark Tubes background */
.tubes-home .site-nav {
  background: rgba(0, 0, 0, 0.5);
  border-bottom-color: rgba(255, 255, 255, 0.2);
}

.tubes-home .nav-brand,
.tubes-home .nav-brand-full,
.tubes-home .nav-links a {
  color: #ffffff;
}

.tubes-home .nav-links a:hover {
  color: #e4f3e8;
}

.tubes-home .nav-cta {
  background: rgba(45, 90, 61, 0.95);
}

/* Newsletter block text inside dark hero */
.tubes-home .hero .newsletter-block {
  background: rgba(0, 0, 0, 0.45);
  border-color: rgba(255, 255, 255, 0.25);
}

.tubes-home .hero .newsletter-block h3,
.tubes-home .hero .newsletter-block p {
  color: #ffffff;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ----- Navigation (sticky) ----- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  padding: 0 var(--space-xl);
  background: rgba(250, 249, 246, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.nav-brand {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--color-text);
  text-decoration: none;
}

.nav-brand:hover {
  text-decoration: none;
  color: var(--color-accent);
}

.nav-brand-full {
  display: none;
}

@media (min-width: 768px) {
  .nav-brand-full {
    display: inline;
  }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--color-text);
  text-decoration: none;
}

.nav-cta {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9rem;
  font-weight: 500;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s;
}

.nav-cta:hover {
  background: var(--color-accent-hover);
  text-decoration: none;
  color: #fff;
}

/* Mobile nav toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
}

@media (max-width: 767px) {
  .nav-links {
    display: none;
  }
  .nav-links.is-open {
    display: flex;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: var(--space-lg);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
  }
}

/* ----- Sections (shared) ----- */
section {
  padding: var(--space-3xl) var(--space-xl);
  max-width: 72rem;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
}

.section-intro {
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xl);
  max-width: 42rem;
}

/* ----- Hero ----- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-3xl);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 600;
  margin: 0 0 var(--space-md);
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.hero-subhead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 36rem;
  margin: 0 0 var(--space-lg);
  line-height: 1.65;
}

.hero-support {
  font-size: 1rem;
  color: var(--color-text);
  margin: 0 0 var(--space-xl);
  max-width: 32rem;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  border: none;
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  text-decoration: none;
  color: #fff;
}

.btn-secondary {
  color: var(--color-text);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-border);
  text-decoration: none;
  color: var(--color-text);
}

.hero-micro {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0;
}

.hero-stats {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ----- What we publish (4-card grid) ----- */
.publish-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .publish-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .publish-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.card {
  padding: var(--space-lg);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.mini-cta {
  margin-top: var(--space-xl);
  font-size: 0.95rem;
}

.mini-cta a {
  font-weight: 500;
}

/* Images under publish section */
.publish-images {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-xl);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.publish-images figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.publish-images img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}

/* ----- How it works (3 steps) ----- */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  counter-reset: step;
}

@media (min-width: 640px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step {
  position: relative;
  padding-left: var(--space-xl);
  counter-increment: step;
}

.step::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-bg-subtle);
  border-radius: 50%;
}

.step h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
}

.step p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.steps-micro {
  margin-top: var(--space-xl);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ----- Featured (launching / preview cards) ----- */
.featured-section .section-intro {
  margin-bottom: var(--space-lg);
}

.featured-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .featured-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.preview-card {
  padding: var(--space-lg);
  background: var(--color-bg-subtle);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
}

.preview-card .badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.preview-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.preview-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.preview-card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
}

.tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border-radius: 4px;
}

.featured-cta {
  margin-top: var(--space-xl);
}

/* ----- Get involved (3 entry cards) ----- */
.involved-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .involved-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.involved-card {
  padding: var(--space-xl);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
}

.involved-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.involved-card p {
  margin: 0 0 var(--space-lg);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  flex: 1;
}

/* ----- Contact ----- */
.contact-section p {
  margin: 0 0 var(--space-md);
  color: var(--color-text-muted);
}

.contact-email {
  font-weight: 500;
  color: var(--color-accent);
}

.contact-social {
  margin-top: var(--space-md);
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.contact-social a {
  margin-right: var(--space-md);
}

/* ----- Newsletter block (reusable) ----- */
.newsletter-block {
  padding: var(--space-xl);
  background: var(--color-bg-subtle);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.newsletter-block h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.newsletter-block p {
  margin: 0 0 var(--space-md);
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.newsletter-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  max-width: 28rem;
}

.newsletter-form input[type="email"] {
  flex: 1;
  min-width: 200px;
  padding: var(--space-md);
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.newsletter-form button {
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
}

.newsletter-form button:hover {
  background: var(--color-accent-hover);
}

/* ----- Footer ----- */
.site-footer {
  padding: var(--space-xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.site-footer p {
  margin: 0;
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.site-footer p + p {
  margin-top: var(--space-xs);
}

/* ========== SUBMIT PAGE ========== */
.submit-page .site-nav {
  border-bottom: 1px solid var(--color-border);
}

.submit-hero {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-xl);
}

.submit-hero h1 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.submit-hero .subhead {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-sm);
}

.submit-hero .micro {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Tabs */
.submit-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-xl);
  overflow-x: auto;
}

.submit-tabs a {
  padding: var(--space-md) var(--space-lg);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
}

.submit-tabs a:hover {
  color: var(--color-text);
  text-decoration: none;
}

.submit-tabs a.is-active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.submit-panel {
  display: none;
  max-width: 36rem;
  padding-bottom: var(--space-3xl);
}

.submit-panel.is-active {
  display: block;
}

.form-intro {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-lg);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="url"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-group .optional {
  font-weight: normal;
  color: var(--color-text-muted);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.checkbox-group input {
  margin-top: 0.25rem;
}

.checkbox-group label {
  margin-bottom: 0;
  font-weight: normal;
}

.form-success {
  display: none;
  padding: var(--space-md);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-top: var(--space-md);
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.form-success.is-visible {
  display: block;
}

.submit-panel .btn-primary {
  margin-top: var(--space-sm);
}

/* Newsletter on submit page */
.submit-newsletter {
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
  max-width: 36rem;
}

.submit-newsletter .newsletter-block {
  margin: 0;
}

/* Responsive */
@media (max-width: 767px) {
  .submit-tabs {
    flex-direction: column;
  }
  .submit-tabs a {
    border-bottom: none;
    border-left: 3px solid transparent;
    margin-bottom: 0;
  }
  .submit-tabs a.is-active {
    border-left-color: var(--color-accent);
    border-bottom: none;
  }
}

/* ========== SCROLL REVEAL ========== */
.reveal {
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ========== EXPLORE PAGE (dynamic grid) ========== */
.explore-hero {
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
}

.explore-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
}

.explore-hero p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
}

.explore-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.explore-filters button {
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color 0.2s, background 0.2s, border-color 0.2s, transform 0.2s;
}

.explore-filters button:hover,
.explore-filters button.is-active {
  color: var(--color-accent);
  background: rgba(45, 90, 61, 0.08);
  border-color: rgba(45, 90, 61, 0.3);
}

.explore-filters button:hover {
  transform: translateY(-1px);
}

.explore-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-xl);
  padding: 0 var(--space-xl) var(--space-3xl);
  max-width: 72rem;
  margin: 0 auto;
}

.explore-card {
  background: rgba(250, 249, 246, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-xl);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.3s;
}

.explore-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(45, 90, 61, 0.12);
  border-color: rgba(45, 90, 61, 0.25);
}

.explore-card .badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.explore-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
  line-height: 1.4;
}

.explore-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.explore-card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.explore-card .tag {
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-subtle);
  border-radius: 4px;
}

/* ========== ABOUT / PROCESS PAGE ========== */
.about-hero {
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
}

.about-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
}

.about-hero p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.about-timeline {
  max-width: 40rem;
  margin: 0 auto;
  padding: 0 var(--space-xl) var(--space-3xl);
}

.about-step {
  display: flex;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
  padding: var(--space-lg);
  background: rgba(250, 249, 246, 0.7);
  backdrop-filter: blur(6px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.about-step:hover {
  transform: translateX(8px);
  box-shadow: 0 8px 24px rgba(45, 90, 61, 0.08);
}

.about-step-num {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--color-accent);
  background: rgba(45, 90, 61, 0.1);
  border-radius: 50%;
}

.about-step h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
}

.about-step p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.about-values {
  padding: var(--space-3xl) var(--space-xl);
  max-width: 72rem;
  margin: 0 auto;
}

.about-values h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 var(--space-xl);
  text-align: center;
  color: var(--color-text);
}

.about-values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.about-value {
  text-align: center;
  padding: var(--space-xl);
  background: rgba(250, 249, 246, 0.6);
  backdrop-filter: blur(4px);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: transform 0.3s ease, border-color 0.3s;
}

.about-value:hover {
  transform: scale(1.02);
  border-color: rgba(45, 90, 61, 0.2);
}

.about-value .icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
  opacity: 0.9;
}

.about-value h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
}

.about-value p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ----- Simple gallery (image slots) ----- */
.about-gallery {
  padding: var(--space-3xl) var(--space-xl);
  max-width: 72rem;
  margin: 0 auto;
}

.about-gallery h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 var(--space-xl);
  text-align: center;
  color: var(--color-text);
}

.about-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-lg);
}

.about-gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
}

.about-gallery-item img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}

/* ----- Adjust colors for publish section on dark background (homepage) ----- */
.tubes-home #publish {
  color: #ffffff;
}

.tubes-home #publish .section-title,
.tubes-home #publish .section-intro,
.tubes-home #publish .mini-cta,
.tubes-home #publish .mini-cta a,
.tubes-home #publish a {
  color: #ffffff;
}

/* 保持白框(card)内文字为深色，避免反色 */
.tubes-home #publish .card h3 {
  color: var(--color-text);
}

.tubes-home #publish .card p {
  color: var(--color-text-muted);
}

/* Adjust colors for How it works section on dark background (homepage) */
.tubes-home #how {
  color: #ffffff;
}

.tubes-home #how .section-title,
.tubes-home #how .section-intro,
.tubes-home #how .steps-micro,
.tubes-home #how .step h3,
.tubes-home #how .step p {
  color: #ffffff;
}

/* Adjust colors for Featured + Get involved on dark background (homepage) */
.tubes-home #featured {
  color: #ffffff;
}

.tubes-home #featured .section-title,
.tubes-home #featured .section-intro {
  color: #ffffff;
}

.tubes-home #involved {
  color: #ffffff;
}

.tubes-home #involved .section-title,
.tubes-home #involved .involved-card h3,
.tubes-home #involved .involved-card p {
  color: #ffffff;
}

/* Adjust colors for Contact section text on dark background (homepage) */
.tubes-home #contact .section-title,
.tubes-home #contact p,
.tubes-home #contact .contact-email,
.tubes-home #contact .contact-social a {
  color: #f97316; /* orange-500 */
}

/* Footer text colors on dark homepage background */
.tubes-home .site-footer,
.tubes-home .site-footer p,
.tubes-home .site-footer a {
  color: #ffffff;
}