/* ===== Base ===== */
:root { color-scheme: light dark; }
body { margin: 0; font-family: 'Segoe UI', system-ui, sans-serif; }
*, *::before, *::after { box-sizing: border-box; }

.page-content { padding-top: 64px; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Top Bar ===== */
#topbar { --mdui-comp-top-app-bar-color: var(--mdui-color-surface); }

.brand {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.25rem; font-weight: 700;
  text-decoration: none;
  color: var(--mdui-color-on-surface);
}
.brand mdui-icon { font-size: 1.5rem; color: var(--mdui-color-primary); }

.nav-links { display: flex; align-items: center; gap: 0.5rem; }
.nav-link {
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  text-decoration: none;
  font-size: 0.9rem;
  color: var(--mdui-color-on-surface-variant);
  transition: background 0.2s, color 0.2s;
}
.nav-link:hover, .nav-link.active {
  background: var(--mdui-color-secondary-container);
  color: var(--mdui-color-on-secondary-container);
}

@media (max-width: 600px) {
  .nav-links { gap: 0; }
  .nav-link { padding: 0.3rem 0.5rem; font-size: 0.82rem; }
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--mdui-color-primary-container) 60%, transparent),
    color-mix(in srgb, var(--mdui-color-surface-variant) 80%, transparent));
  padding: 5rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
}

.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--mdui-color-primary-container);
  color: var(--mdui-color-on-primary-container);
  margin-bottom: 1.2rem;
}

.hero-text h1 {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 1.2rem;
  color: var(--mdui-color-on-surface);
}

.hero-text p {
  font-size: 1rem;
  color: var(--mdui-color-on-surface-variant);
  margin: 0 0 0.8rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.8rem;
}

/* ===== Terminal Widget ===== */
.terminal-window {
  background: #1a1b1e;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
  font-family: 'Courier New', monospace;
}

.terminal-bar {
  background: #2d2e32;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red    { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green  { background: #28c840; }

.terminal-title {
  margin-left: 10px;
  font-size: 0.8rem;
  color: #8b8c8e;
}

.terminal-body {
  padding: 1.2rem 1.4rem;
  font-size: 0.85rem;
  line-height: 1.8;
  color: #d4d4d4;
}

.t-prompt { color: #4ec9b0; }
.t-cmd    { color: #ce9178; }
.t-info   { color: #9cdcfe; }
.t-output { color: #dcdcaa; }
.t-cursor { animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ===== Sections ===== */
.section { padding: 4.5rem 0; }

.section-tonal {
  background: var(--mdui-color-surface-container);
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}
.section-header h2 {
  font-size: 2rem; font-weight: 700; margin: 0 0 0.5rem;
  color: var(--mdui-color-on-surface);
}
.section-header p {
  color: var(--mdui-color-on-surface-variant);
  font-size: 1rem; margin: 0;
}

/* ===== Grids ===== */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

/* ===== Feature Cards ===== */
.feat-card {
  padding: 1.5rem;
  border-radius: 12px;
}
.feat-card h3 { margin: 0.6rem 0 0.4rem; font-size: 1rem; font-weight: 600; color: var(--mdui-color-on-surface); }
.feat-card p  { margin: 0; font-size: 0.9rem; color: var(--mdui-color-on-surface-variant); line-height: 1.6; }
.feat-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--mdui-color-primary-container);
  display: flex; align-items: center; justify-content: center;
}
.feat-icon mdui-icon { color: var(--mdui-color-on-primary-container); font-size: 1.3rem; }

/* ===== Download Cards ===== */
.dl-card { padding: 1.2rem; }
.dl-top  { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.dl-icon {
  font-size: 2rem;
  color: var(--mdui-color-primary);
}
.dl-icon-dim { color: var(--mdui-color-on-surface-variant) !important; }
.dl-platform { font-weight: 600; color: var(--mdui-color-on-surface); }
.dl-status   { font-size: 0.8rem; margin-top: 2px; }
.status-active { color: var(--mdui-color-primary); }
.status-eol    { color: var(--mdui-color-on-surface-variant); }
.dl-btn-row mdui-button { width: 100%; }

/* ===== CTA Cards ===== */
.cta-card { padding: 2rem; }
.cta-card h2 { margin: 0 0 0.6rem; font-size: 1.4rem; }
.cta-card p  { margin: 0 0 1.2rem; color: var(--mdui-color-on-surface-variant); line-height: 1.6; }

/* ===== Footer ===== */
.footer {
  background: var(--mdui-color-surface-container-high);
  border-top: 1px solid var(--mdui-color-outline-variant);
  padding: 1.5rem 0;
  margin-top: 1rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.87rem;
  color: var(--mdui-color-on-surface-variant);
}
.footer-links a {
  color: var(--mdui-color-primary);
  text-decoration: none;
}
.footer-links a:hover { text-decoration: underline; }

/* ===== Support Page ===== */
.support-hero {
  background: var(--mdui-color-surface-container);
  padding: 3rem 0 2rem;
  text-align: center;
}
.support-hero h1 { font-size: 2rem; font-weight: 700; margin: 0 0 0.5rem; }
.support-hero p  { color: var(--mdui-color-on-surface-variant); margin: 0; }

.support-tabs-wrap { padding: 2rem 0 4rem; }

.guide-step {
  display: flex; gap: 1rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--mdui-color-outline-variant);
}
.guide-step:last-child { border-bottom: none; }
.step-num {
  min-width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--mdui-color-primary);
  color: var(--mdui-color-on-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.9rem;
  flex-shrink: 0;
}
.step-body h4 { margin: 0 0 0.3rem; font-size: 1rem; }
.step-body p  { margin: 0; font-size: 0.92rem; color: var(--mdui-color-on-surface-variant); line-height: 1.6; }

.faq-item {
  border-bottom: 1px solid var(--mdui-color-outline-variant);
  padding: 1rem 0;
}
.faq-item:last-child { border-bottom: none; }
.faq-q { font-weight: 600; margin-bottom: 0.4rem; }
.faq-a { color: var(--mdui-color-on-surface-variant); font-size: 0.93rem; line-height: 1.6; }

.feedback-form { max-width: 600px; margin: 0 auto; }
.feedback-form mdui-text-field { margin-bottom: 1rem; }

/* ===== Privacy Page ===== */
.privacy-hero {
  background: var(--mdui-color-surface-container);
  padding: 3rem 0 2rem;
  text-align: center;
}
.privacy-hero h1 { font-size: 2rem; font-weight: 700; margin: 0 0 0.5rem; }
.privacy-hero p  { color: var(--mdui-color-on-surface-variant); margin: 0; }

.privacy-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}
.privacy-content h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 2rem 0 0.6rem;
  color: var(--mdui-color-primary);
}
.privacy-content p, .privacy-content ul {
  color: var(--mdui-color-on-surface-variant);
  line-height: 1.8;
  margin: 0 0 0.6rem;
}
.privacy-content ul { padding-left: 1.4rem; }
.privacy-content li { margin-bottom: 0.3rem; }