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

/* --- Light theme (default, ronaQC canonical) --- */
:root {
  --gx-bg: #f8fafc;
  --gx-bg-alt: #f1f5f9;
  --gx-surface: #ffffff;
  --gx-surface-hover: #f1f5f9;
  --gx-border: #e2e8f0;
  --gx-text: #0f172a;
  --gx-text-muted: #64748b;
  --gx-text-inverted: #ffffff;
  --gx-accent: #0d9488;
  --gx-accent-hover: #0f766e;
  --gx-accent-dim: rgba(13, 148, 136, 0.08);
  --gx-success: #0d9488;
  --gx-warning: #F59E0B;
  --gx-error: #EF4444;
  --gx-info: #6366F1;
  --gx-indigo: #6366F1;
  --gx-indigo-dim: rgba(99, 102, 241, 0.08);
  --gx-radius: 8px;
  --gx-radius-lg: 12px;
  --gx-transition: 0.2s ease;
  --gx-max-width: 1080px;
  --gx-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --gx-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --gx-nav-bg: rgba(255, 255, 255, 0.9);
  --gx-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  color-scheme: light;
}

/* --- Dark theme --- */
[data-theme="dark"] {
  --gx-bg: #0f172a;
  --gx-bg-alt: #1e293b;
  --gx-surface: #1e293b;
  --gx-surface-hover: #334155;
  --gx-border: #334155;
  --gx-text: #f1f5f9;
  --gx-text-muted: #94a3b8;
  --gx-text-inverted: #0f172a;
  --gx-accent: #2dd4bf;
  --gx-accent-hover: #14b8a6;
  --gx-accent-dim: rgba(45, 212, 191, 0.1);
  --gx-success: #2dd4bf;
  --gx-warning: #F59E0B;
  --gx-error: #EF4444;
  --gx-info: #818CF8;
  --gx-indigo: #818CF8;
  --gx-indigo-dim: rgba(99, 102, 241, 0.15);
  --gx-nav-bg: rgba(15, 23, 42, 0.9);
  --gx-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  color-scheme: dark;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--gx-font-sans);
  background: var(--gx-bg);
  color: var(--gx-text);
  line-height: 1.7;
  font-size: 1rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

a:hover {
  color: var(--gx-accent-hover);
}

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

/* ===== Navigation ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--gx-nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gx-border);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.nav-inner {
  max-width: var(--gx-max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--gx-text);
  letter-spacing: -0.02em;
}

.nav-logo svg {
  width: 24px;
  height: 24px;
}

.nav-logo span {
  color: var(--gx-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--gx-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--gx-transition);
  position: relative;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gx-accent);
  border-radius: 1px;
}

.nav-github {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--gx-text-muted) !important;
  font-size: 0.875rem;
}

.nav-github svg {
  width: 18px;
  height: 18px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--gx-text);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

/* ===== Theme Toggle ===== */
.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--gx-bg-alt);
  border: 1px solid var(--gx-border);
  border-radius: 999px;
  cursor: pointer;
  color: var(--gx-text-muted);
  transition: all var(--gx-transition);
  padding: 0;
}

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

.theme-toggle-btn svg {
  width: 18px;
  height: 18px;
}

/* ===== Hero ===== */
.hero {
  padding: 6rem 2rem 5rem;
  text-align: center;
  max-width: var(--gx-max-width);
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  border: 1px solid var(--gx-border);
  color: var(--gx-text-muted);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 2rem;
  letter-spacing: 0.01em;
}

.hero-badge svg {
  width: 14px;
  height: 14px;
  color: var(--gx-accent);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.035em;
  margin-bottom: 1.5rem;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
  color: var(--gx-text);
}

.hero h1 .accent-text {
  color: var(--gx-accent);
}

.hero > p {
  font-size: 1.15rem;
  color: var(--gx-text-muted);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--gx-transition);
}

a.btn-primary,
.btn-primary {
  background: var(--gx-accent);
  color: var(--gx-text-inverted);
}

a.btn-primary:hover,
.btn-primary:hover {
  background: var(--gx-accent-hover);
  color: var(--gx-text-inverted);
}

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

.btn-secondary:hover {
  border-color: var(--gx-accent);
  color: var(--gx-accent);
}

.btn svg {
  width: 16px;
  height: 16px;
}

/* ===== Sections ===== */
.section {
  max-width: var(--gx-max-width);
  margin: 0 auto;
  padding: 5rem 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
  color: var(--gx-text);
}

.section-header p {
  color: var(--gx-text-muted);
  font-size: 1.05rem;
}

/* ===== Divider ===== */
.section-divider {
  max-width: var(--gx-max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section-divider hr {
  border: none;
  border-top: 1px solid var(--gx-border);
}

/* ===== Feature Banner ===== */
.features-banner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  max-width: var(--gx-max-width);
  margin: 0 auto;
  padding: 0 2rem;
  background: var(--gx-border);
  border-radius: var(--gx-radius-lg);
  overflow: hidden;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 2rem;
  background: var(--gx-surface);
  transition: background-color 0.3s ease;
}

.feature-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gx-accent-dim);
  color: var(--gx-accent);
}

.feature-icon svg {
  width: 18px;
  height: 18px;
}

.feature-item h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--gx-text);
  letter-spacing: -0.01em;
}

.feature-item p {
  font-size: 0.85rem;
  color: var(--gx-text-muted);
  line-height: 1.55;
}

/* ===== Mission ===== */
.mission-section {
  padding-top: 5rem;
}

.mission-card {
  max-width: 720px;
  margin: 0 auto;
  text-align: left;
}

.mission-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 1.5rem;
  color: var(--gx-accent);
}

.mission-card p {
  color: var(--gx-text-muted);
  line-height: 1.8;
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.mission-card .btn {
  margin-top: 0.75rem;
}

/* ===== App Cards ===== */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.app-card {
  background: var(--gx-surface);
  border-radius: var(--gx-radius-lg);
  border: 1px solid var(--gx-border);
  overflow: hidden;
  transition: border-color var(--gx-transition), background-color 0.3s ease;
  display: flex;
  flex-direction: column;
}

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

.app-card-header {
  padding: 1.5rem 1.5rem 0;
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
}

.app-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.app-icon svg {
  width: 20px;
  height: 20px;
  color: #fff;
}

.app-card-header .app-meta h3 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--gx-text);
}

.app-card-header .app-meta .tagline {
  font-size: 0.8rem;
  color: var(--gx-text-muted);
  font-weight: 500;
}

.app-card-body {
  padding: 0.875rem 1.5rem 0;
  flex: 1;
}

.app-card-body p {
  font-size: 0.875rem;
  color: var(--gx-text-muted);
  line-height: 1.65;
}

.app-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.875rem 1.5rem 0;
}

.tech-tag {
  padding: 0.15rem 0.5rem;
  background: var(--gx-bg);
  border: 1px solid var(--gx-border);
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--gx-text-muted);
  font-family: var(--gx-font-mono);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.app-features {
  padding: 0.875rem 1.5rem 0;
  list-style: none;
}

.app-features li {
  font-size: 0.8rem;
  color: var(--gx-text-muted);
  padding: 0.15rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.app-features li::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gx-accent);
  flex-shrink: 0;
}

.app-card-footer {
  padding: 1.25rem 1.5rem 1.5rem;
  display: flex;
  gap: 0.625rem;
  margin-top: auto;
}

.app-card-footer .btn {
  flex: 1;
  justify-content: center;
  padding: 0.55rem 0.875rem;
  font-size: 0.8rem;
}

/* ===== Roadmap (inline cards on homepage) ===== */
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.roadmap-item {
  background: var(--gx-surface);
  border: 1px solid var(--gx-border);
  border-radius: var(--gx-radius);
  padding: 1.5rem;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.roadmap-item h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--gx-text);
  letter-spacing: -0.01em;
}

.roadmap-item p {
  font-size: 0.85rem;
  color: var(--gx-text-muted);
  line-height: 1.6;
}

.roadmap-status {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.675rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

.roadmap-status.done {
  background: rgba(13, 148, 136, 0.12);
  color: var(--gx-accent);
}

.roadmap-status.active {
  background: var(--gx-indigo-dim);
  color: var(--gx-indigo);
}

.roadmap-status.planned {
  background: rgba(100, 116, 139, 0.1);
  color: var(--gx-text-muted);
}

/* ===== Roadmap Table (roadmap.html) ===== */
.roadmap-hero {
  padding: 5rem 2rem 3.5rem;
  text-align: center;
  max-width: var(--gx-max-width);
  margin: 0 auto;
}

.roadmap-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  margin-bottom: 1rem;
  color: var(--gx-text);
}

.roadmap-hero h1 .accent-text {
  color: var(--gx-accent);
}

.roadmap-hero p {
  color: var(--gx-text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.75;
}

.roadmap-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--gx-border);
  border-radius: var(--gx-radius-lg);
  background: var(--gx-surface);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.roadmap-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.roadmap-table th {
  text-align: left;
  padding: 0.75rem 1rem;
  background: var(--gx-bg-alt);
  border-bottom: 1px solid var(--gx-border);
  color: var(--gx-text);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  transition: background-color 0.3s ease;
}

.roadmap-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--gx-border);
  color: var(--gx-text-muted);
  white-space: nowrap;
}

.roadmap-table tbody tr:last-child td {
  border-bottom: none;
}

.roadmap-table tbody tr:hover td {
  background: var(--gx-surface-hover);
}

.roadmap-table .tool-name {
  font-weight: 600;
  color: var(--gx-text);
}

.roadmap-table a {
  font-size: 0.8rem;
}

/* Status badges */
.status-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-badge.done {
  background: rgba(13, 148, 136, 0.12);
  color: var(--gx-accent);
}

.status-badge.in-progress {
  background: var(--gx-indigo-dim);
  color: var(--gx-indigo);
}

.status-badge.pending {
  background: rgba(100, 116, 139, 0.1);
  color: var(--gx-text-muted);
}

.status-badge.not-started {
  background: rgba(100, 116, 139, 0.06);
  color: var(--gx-text-muted);
  opacity: 0.7;
}

/* ===== Contribute Grid ===== */
.contribute-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.contribute-card {
  background: var(--gx-surface);
  border: 1px solid var(--gx-border);
  border-radius: var(--gx-radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: border-color var(--gx-transition), background-color 0.3s ease;
}

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

.contribute-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gx-accent-dim);
  color: var(--gx-accent);
  margin-bottom: 1rem;
}

.contribute-icon svg {
  width: 20px;
  height: 20px;
}

.contribute-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--gx-text);
}

.contribute-card p {
  font-size: 0.875rem;
  color: var(--gx-text-muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  flex: 1;
}

.contribute-card .btn {
  align-self: flex-start;
}

/* ===== About Page ===== */
.about-hero {
  padding: 5rem 2rem 3.5rem;
  text-align: center;
  max-width: var(--gx-max-width);
  margin: 0 auto;
}

.about-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  margin-bottom: 1rem;
  color: var(--gx-text);
}

.about-hero h1 .accent-text {
  color: var(--gx-accent);
}

.about-hero p {
  color: var(--gx-text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.75;
}

.about-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 2rem 5rem;
}

.about-card {
  border-bottom: 1px solid var(--gx-border);
  padding: 2.5rem 0;
}

.about-card:last-child {
  border-bottom: none;
}

.about-card h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  letter-spacing: -0.015em;
  color: var(--gx-text);
}

.about-card p {
  color: var(--gx-text-muted);
  line-height: 1.8;
  margin-bottom: 1rem;
  font-size: 1rem;
}

.about-card p:last-child {
  margin-bottom: 0;
}

.about-card a:not(.btn) {
  color: var(--gx-accent);
}

.about-card a:not(.btn):hover {
  color: var(--gx-accent-hover);
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 1.5rem;
}

.about-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.875rem;
  border: 1px solid var(--gx-border);
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--gx-text-muted);
  transition: all var(--gx-transition);
}

.about-link:hover {
  border-color: var(--gx-accent);
  color: var(--gx-accent);
}

.about-link svg {
  width: 16px;
  height: 16px;
}

/* ===== Principles ===== */
.principles-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 0.5rem;
}

.principle-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--gx-surface);
  border-radius: var(--gx-radius);
  border: 1px solid var(--gx-border);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.principle-number {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--gx-accent);
  color: var(--gx-text-inverted);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.principle-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--gx-text);
}

.principle-item p {
  font-size: 0.85rem;
  margin-bottom: 0;
  line-height: 1.6;
}

/* ===== Audience Grid ===== */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.audience-item {
  padding: 1.25rem;
  background: var(--gx-surface);
  border-radius: var(--gx-radius);
  border: 1px solid var(--gx-border);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.audience-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--gx-accent);
}

.audience-item p {
  font-size: 0.85rem;
  margin-bottom: 0;
  line-height: 1.6;
}

/* ===== Contribute Steps ===== */
.contribute-list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-top: 1rem;
}

.contribute-step {
  padding: 0.875rem 1rem;
  background: var(--gx-surface);
  border: 1px solid var(--gx-border);
  border-radius: 6px;
  font-size: 0.875rem;
  color: var(--gx-text-muted);
  line-height: 1.6;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.contribute-step strong {
  color: var(--gx-text);
}

/* ===== Newsletter ===== */
.newsletter-card {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.newsletter-card h2 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
  color: var(--gx-text);
}

.newsletter-card p {
  color: var(--gx-text-muted);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
  line-height: 1.75;
}

/* ===== Footer ===== */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--gx-border);
  padding: 2rem;
  font-size: 0.8rem;
  color: var(--gx-text-muted);
  transition: border-color 0.3s ease;
}

.footer-inner {
  max-width: var(--gx-max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  color: var(--gx-text-muted);
  font-size: 0.8rem;
}

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

/* ===== Animations ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-in {
  animation: fadeIn 0.4s ease forwards;
  opacity: 0;
}

.animate-in:nth-child(1) { animation-delay: 0.05s; }
.animate-in:nth-child(2) { animation-delay: 0.1s; }
.animate-in:nth-child(3) { animation-delay: 0.15s; }
.animate-in:nth-child(4) { animation-delay: 0.2s; }
.animate-in:nth-child(5) { animation-delay: 0.25s; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--gx-surface);
    border-bottom: 1px solid var(--gx-border);
    flex-direction: column;
    padding: 1rem 2rem;
    gap: 0.75rem;
  }

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

  .nav-toggle {
    display: block;
  }

  .hero {
    padding: 4rem 1.5rem 3rem;
  }

  .section {
    padding: 3rem 1.5rem;
  }

  .features-banner {
    grid-template-columns: 1fr;
    padding: 0 1.5rem;
  }

  .apps-grid {
    grid-template-columns: 1fr;
  }

  .roadmap-grid {
    grid-template-columns: 1fr;
  }

  .contribute-grid {
    grid-template-columns: 1fr;
  }

  .audience-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    gap: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .about-hero {
    padding: 3.5rem 1.5rem 2.5rem;
  }

  .about-content {
    padding: 0 1.5rem 3rem;
  }

  .roadmap-hero {
    padding: 3.5rem 1.5rem 2.5rem;
  }
}

@media (max-width: 480px) {
  .app-card-header,
  .app-card-body,
  .app-tech,
  .app-features,
  .app-card-footer {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .about-card {
    padding: 1.5rem 0;
  }
}