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

:root {
  --bg:          #18181c;
  --bg2:         #1e1e24;
  --surface:     #24242c;
  --border:      #37373f;
  --accent:      #dc503c;
  --accent-hov:  #e8604c;
  --accent-glow: rgba(220, 80, 60, 0.25);
  --green:       #50c878;
  --warn:        #f5c542;
  --text:        #e8e8ed;
  --subtext:     #9090a0;
  --font:        'Inter', system-ui, -apple-system, sans-serif;
  --mono:        'JetBrains Mono', 'Consolas', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Layout helpers ──────────────────────────────────────────────────── */
.section-inner  { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.accent         { color: var(--accent); }

/* ── Nav ─────────────────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(24, 24, 28, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo { font-size: 1.2rem; font-weight: 800; letter-spacing: -0.5px; }
.logo-k   { color: var(--accent); }
.logo-c   { color: var(--text); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.9rem;
  color: var(--subtext);
}
.nav-links a:hover { color: var(--text); }

.nav-github {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text) !important;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 8px;
  font-weight: 500;
  transition: border-color 0.2s, background 0.2s;
}
.nav-github:hover {
  border-color: var(--accent);
  background: rgba(220,80,60,0.08);
  color: var(--text) !important;
}

.nav-kofi {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #fff !important;
  background: #72a4f2;
  border: 1px solid transparent;
  padding: 6px 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.88rem;
  white-space: nowrap;
  transition: background 0.2s, transform 0.15s;
}
.nav-kofi:hover {
  background: #5a8fe0;
  color: #fff !important;
  transform: translateY(-1px);
}

/* ── Buttons ─────────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #fff !important;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 24px var(--accent-glow);
  text-decoration: none;
  flex-direction: row;
  flex-wrap: nowrap;
}
.btn-primary:hover {
  background: var(--accent-hov);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
  color: #fff !important;
}
.btn-meta {
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.8;
  padding-left: 6px;
  border-left: 1px solid rgba(255,255,255,0.3);
}
.btn-large { font-size: 1.1rem; padding: 18px 36px; }
.btn-large .btn-meta { font-size: 0.85rem; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text) !important;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 24px;
  border-radius: 12px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  text-decoration: none;
}
.btn-secondary:hover {
  border-color: var(--accent);
  background: rgba(220,80,60,0.08);
  color: var(--text) !important;
}

/* ── Hero ────────────────────────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 80px 24px 0;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: rgba(220, 80, 60, 0.12);
  border: 1px solid rgba(220, 80, 60, 0.35);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--text);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--subtext);
  line-height: 1.7;
  margin-bottom: 36px;
}
.hero-sub strong { color: var(--text); }

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.hero-note {
  font-size: 0.82rem;
  color: var(--subtext);
  margin-bottom: 60px;
}

/* ── App Preview (mock screenshot) ──────────────────────────────────── */
.app-preview {
  max-width: 720px;
  margin: 0 auto 80px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
  text-align: left;
}

.app-titlebar {
  background: #111114;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}
.titlebar-dots { display: flex; gap: 6px; }
.titlebar-dots span {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--border);
}
.titlebar-title {
  font-size: 0.8rem;
  color: var(--subtext);
  flex: 1;
  text-align: center;
  padding-right: 48px;
}

.app-body {
  background: #18181c;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.app-header-row { display: flex; align-items: center; gap: 12px; }
.app-logo-block { display: flex; align-items: center; gap: 12px; }
.app-logo-icon  { font-size: 2.4rem; line-height: 1; }
.app-title-text { font-size: 1.5rem; font-weight: 800; color: var(--accent); letter-spacing: -0.5px; }
.app-subtitle-text { font-size: 0.78rem; color: var(--subtext); }

.app-warning {
  background: rgba(80, 50, 0, 0.6);
  border: 1px solid rgba(245, 197, 66, 0.25);
  color: var(--warn);
  font-size: 0.78rem;
  padding: 9px 14px;
  border-radius: 6px;
}

.app-disks {
  display: flex;
  align-items: center;
  gap: 12px;
}
.app-disk-col { flex: 1; }
.app-disk-label { font-size: 0.72rem; color: var(--subtext); margin-bottom: 4px; }
.app-disk-select {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 12px;
  font-size: 0.82rem;
  color: var(--text);
}
.app-disk-info { font-size: 0.72rem; color: var(--subtext); margin-top: 3px; }
.app-disk-info.green { color: var(--green); }
.app-disk-arrow { color: var(--subtext); font-size: 1.2rem; line-height: 40px; padding-top: 14px; }

.app-options { display: flex; flex-direction: column; gap: 5px; }
.app-check {
  font-size: 0.82rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}
.app-check.checked { color: var(--text); }

.app-progress-bar {
  height: 10px;
  background: var(--surface);
  border-radius: 100px;
  overflow: hidden;
}
.app-progress-fill {
  height: 100%;
  width: 65%;
  background: linear-gradient(90deg, var(--accent), #ff7a5c);
  border-radius: 100px;
}
.app-progress-label { font-size: 0.78rem; color: var(--subtext); }

/* ── Comparison ─────────────────────────────────────────────────────── */
.comparison {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
  text-align: center;
}
.comparison h2 { font-size: 2rem; font-weight: 800; margin-bottom: 10px; }
.section-sub { color: var(--subtext); font-size: 1rem; margin-bottom: 48px; }

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  text-align: left;
}

.comparison-card {
  border-radius: 14px;
  padding: 28px;
  border: 1px solid var(--border);
}
.comparison-card.bad  { background: var(--surface); }
.comparison-card.good {
  background: rgba(220, 80, 60, 0.07);
  border-color: rgba(220, 80, 60, 0.4);
  box-shadow: 0 0 40px rgba(220,80,60,0.12);
}

.card-name {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--subtext);
}
.card-name.accent { color: var(--accent); font-size: 1.1rem; }

.comparison-card ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.comparison-card li { font-size: 0.9rem; }

/* ── Features ────────────────────────────────────────────────────────── */
.features { padding: 90px 0; }
.features h2 { font-size: 2rem; font-weight: 800; text-align: center; margin-bottom: 56px; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
  border-color: rgba(220,80,60,0.4);
  box-shadow: 0 4px 24px rgba(220,80,60,0.08);
}
.feature-icon { font-size: 2rem; margin-bottom: 14px; }
.feature-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p  { font-size: 0.9rem; color: var(--subtext); line-height: 1.6; }

/* ── How it works ────────────────────────────────────────────────────── */
.how-it-works {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 90px 0;
}
.how-it-works h2 { font-size: 2rem; font-weight: 800; text-align: center; margin-bottom: 56px; }

.steps { display: flex; flex-direction: column; gap: 0; max-width: 640px; margin: 0 auto; }

.step {
  display: flex;
  align-items: flex-start;
  gap: 24px;
}
.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 16px var(--accent-glow);
}
.step-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; padding-top: 8px; }
.step-body p  { font-size: 0.9rem; color: var(--subtext); line-height: 1.65; }
.step-body code {
  font-family: var(--mono);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.85em;
  color: var(--text);
}

.step-line {
  width: 2px;
  height: 40px;
  background: var(--border);
  margin-left: 21px;
}

/* ── CTA ─────────────────────────────────────────────────────────────── */
.cta { padding: 100px 0; text-align: center; }
.cta-inner { display: flex; flex-direction: column; align-items: center; gap: 20px; }
.cta h2 { font-size: 2.2rem; font-weight: 900; letter-spacing: -0.5px; }
.cta p  { font-size: 1rem; color: var(--subtext); margin-top: -8px; }

/* ── Footer ──────────────────────────────────────────────────────────── */
footer {
  background: #111114;
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 800;
}
.footer-copy { font-size: 0.82rem; font-weight: 400; color: var(--subtext); }
.footer-copy a { color: var(--subtext); text-decoration: underline; }

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-links a { font-size: 0.85rem; color: var(--subtext); transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }

.footer-note { font-size: 0.75rem; color: #555565; max-width: 560px; }

/* ── Support (Ko-fi) ─────────────────────────────────────────────────── */
.support {
  padding: 90px 0;
  text-align: center;
}
.support h2 { font-size: 2rem; font-weight: 800; margin-bottom: 10px; }

.btn-kofi {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #29abe0;
  color: #fff !important;
  font-weight: 700;
  font-size: 1rem;
  padding: 13px 28px;
  border-radius: 12px;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
  box-shadow: 0 4px 20px rgba(41,171,224,0.3);
}
.btn-kofi:hover {
  background: #1a9acc;
  transform: translateY(-2px);
  color: #fff !important;
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .hero h1 { font-size: 2.2rem; letter-spacing: -1px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-secondary { justify-content: center; }
  .app-disks { flex-direction: column; gap: 8px; }
  .app-disk-arrow { transform: rotate(90deg); align-self: center; padding-top: 0; line-height: 1; }
  .nav-links a:not(.nav-github) { display: none; }
  .comparison-grid { grid-template-columns: 1fr; }
  .steps { gap: 0; }
}