/* ═══════════════════════════════════════════════════════════════
   NANO BANANA PROMPT BUILDER — Landing Page
   Dark theme · Yellow accents · Space Mono + Inter
   ═══════════════════════════════════════════════════════════════ */

:root {
  --yellow: #FFD600;
  --yellow-dim: rgba(255, 214, 0, 0.15);
  --yellow-glow: rgba(255, 214, 0, 0.08);
  --bg: #0e0e0e;
  --bg-card: #161616;
  --bg-card2: #1c1c1c;
  --border: rgba(255,255,255,0.08);
  --border-yellow: rgba(255, 214, 0, 0.35);
  --text: #f0f0f0;
  --text-muted: #888;
  --text-dim: #555;
  --mono: 'Space Mono', 'Courier New', monospace;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── BUTTONS ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 100px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--yellow);
  color: #0e0e0e;
}
.btn-primary:hover {
  background: #ffe033;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255,214,0,0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--yellow);
  color: var(--yellow);
}

.btn-ghost-sm {
  background: transparent;
  color: rgba(255,255,255,0.5);
  border: 1.5px solid rgba(255,255,255,0.12);
  padding: 7px 14px;
  font-size: 12px;
}
.btn-ghost-sm:hover {
  border-color: rgba(255,255,255,0.3);
  color: var(--text);
}
.btn-nav {
  background: var(--yellow);
  color: #0e0e0e;
  padding: 8px 18px;
  font-size: 12px;
}
.btn-nav:hover {
  background: #ffe033;
}

.btn-large {
  padding: 14px 28px;
  font-size: 14px;
}

/* ─── NAV ──────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(14,14,14,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-icon {
  width: 28px;
  height: 28px;
}

.nav-name {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--yellow);
  letter-spacing: -0.3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a:not(.btn) {
  font-size: 14px;
  color: var(--text-muted);
  transition: color var(--transition);
  font-family: var(--mono);
}
.nav-links a:not(.btn):hover { color: var(--text); }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border);
  padding: 16px 24px;
}
.nav-mobile a {
  padding: 12px 0;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile.open { display: flex; }

@media (max-width: 700px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
}

/* ─── HERO ─────────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 140px 0 80px;
  overflow: hidden;
  text-align: center;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,214,0,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,214,0,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,214,0,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--yellow-dim);
  border: 1px solid var(--border-yellow);
  border-radius: 100px;
  padding: 6px 14px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--yellow);
  margin-bottom: 28px;
  letter-spacing: 0.5px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--yellow);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-family: var(--sans);
  font-size: clamp(40px, 7vw, 76px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 24px;
  color: var(--text);
}

.highlight {
  color: var(--yellow);
  position: relative;
}

.hero-subtitle {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--mono);
}

/* ─── MOCKUP ───────────────────────────────────────────────────── */
.hero-mockup-wrap {
  margin-top: 64px;
  display: flex;
  justify-content: center;
}

.mockup-browser {
  width: 100%;
  max-width: 680px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 40px 120px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,214,0,0.08);
}

.mockup-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #1a1a1a;
  border-bottom: 1px solid var(--border);
}

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

.mockup-url {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.05);
  border-radius: 6px;
  padding: 4px 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  margin: 0 8px;
}

.mockup-ext-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--yellow-dim);
  border: 1px solid var(--border-yellow);
  border-radius: 6px;
  padding: 3px 6px;
}

.mockup-screen {
  padding: 0;
}

/* Plugin Preview inside mockup */
.plugin-preview {
  background: #111;
  padding: 20px;
  font-family: var(--mono);
}

.pp-header {
  margin-bottom: 12px;
}

.pp-logo {
  font-size: 16px;
  color: var(--yellow);
  font-weight: 700;
}

.pp-sub {
  font-size: 9px;
  color: var(--text-dim);
  letter-spacing: 2px;
  margin-top: 2px;
}

.pp-steps {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.pp-step {
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 10px;
  background: var(--bg-card2);
  color: var(--text-dim);
  border: 1px solid var(--border);
}

.pp-step.active {
  background: var(--yellow);
  color: #111;
  border-color: var(--yellow);
}

.pp-step.done {
  background: rgba(255,214,0,0.12);
  color: var(--yellow);
  border-color: var(--border-yellow);
}

.pp-step.faded {
  opacity: 0.4;
}

.pp-content {
  margin-bottom: 16px;
}

.pp-question {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}

.pp-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.pp-card {
  background: var(--bg-card2);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 11px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.pp-card.selected {
  border-color: var(--yellow);
  background: var(--yellow-dim);
  color: var(--yellow);
}

.pp-footer {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 12px;
}

.pp-prompt-label {
  font-size: 9px;
  color: var(--text-dim);
  letter-spacing: 1.5px;
  margin-bottom: 4px;
}

.pp-prompt-text {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.5;
}

.cursor {
  animation: blink 1s infinite;
  color: var(--yellow);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.pp-nav {
  display: flex;
  gap: 8px;
}

.pp-btn-back {
  flex: 1;
  padding: 8px;
  background: transparent;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
}

.pp-btn-next {
  flex: 2;
  padding: 8px;
  background: var(--yellow);
  border: none;
  border-radius: 100px;
  color: #111;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
}

/* ─── SECTION COMMON ───────────────────────────────────────────── */
.section-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--yellow);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.7;
}

/* ─── FEATURES ─────────────────────────────────────────────────── */
.features {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 56px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--border-yellow);
  background: var(--bg-card2);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.feature-card--large {
  grid-column: span 2;
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  font-family: var(--mono);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

@media (max-width: 800px) {
  .features-grid { grid-template-columns: 1fr; }
  .feature-card--large { grid-column: span 1; }
}

/* ─── HOW IT WORKS ─────────────────────────────────────────────── */
.how-it-works {
  padding: 100px 0;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent 0%, rgba(255,214,0,0.02) 50%, transparent 100%);
}

.steps-flow {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-top: 56px;
  flex-wrap: wrap;
}

.flow-step {
  flex: 1;
  min-width: 180px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.flow-step:hover {
  border-color: var(--border-yellow);
  background: var(--bg-card2);
}

.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  font-size: 20px;
  color: var(--yellow);
  padding-top: 32px;
  flex-shrink: 0;
}

.flow-num {
  font-family: var(--mono);
  font-size: 32px;
  font-weight: 700;
  color: var(--yellow);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 12px;
}

.flow-body h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
  font-family: var(--mono);
}

.flow-body p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

@media (max-width: 700px) {
  .steps-flow { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); padding: 0; align-self: center; }
}

/* ─── STEPS SECTION ────────────────────────────────────────────── */
.steps-section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  margin-top: 56px;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all var(--transition);
}

.step-item:hover {
  border-color: var(--border-yellow);
  background: var(--bg-card2);
}

.step-num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--yellow);
  background: var(--yellow-dim);
  border: 1px solid var(--border-yellow);
  border-radius: 8px;
  padding: 4px 8px;
  flex-shrink: 0;
  line-height: 1;
}

.step-name {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 4px;
}

.step-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ─── INSTALL ──────────────────────────────────────────────────── */
.install {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.install-card {
  background: var(--bg-card);
  border: 1px solid var(--border-yellow);
  border-radius: var(--radius-lg);
  padding: 56px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
  box-shadow: 0 0 80px rgba(255,214,0,0.05);
}

.install-left h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 12px;
  line-height: 1.15;
}

.install-left > p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 28px;
}

.install-steps {
  list-style: none;
  counter-reset: install;
  margin-bottom: 32px;
}

.install-steps li {
  counter-increment: install;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.install-steps li::before {
  content: counter(install, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--yellow);
  background: var(--yellow-dim);
  border: 1px solid var(--border-yellow);
  border-radius: 6px;
  padding: 2px 6px;
  flex-shrink: 0;
  margin-top: 2px;
}

.install-steps li strong { color: var(--text); }

.install-steps li code {
  font-family: var(--mono);
  font-size: 12px;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--yellow);
}

.install-note {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 12px;
}

/* Code block */
.code-block {
  background: #0a0a0a;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-family: var(--mono);
}

.code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #141414;
  border-bottom: 1px solid var(--border);
}

.code-dot { width: 10px; height: 10px; border-radius: 50%; }
.code-dot.red    { background: #ff5f57; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green  { background: #28c840; }

.code-title {
  font-size: 11px;
  color: var(--text-dim);
  margin-left: 4px;
}

.code-body {
  padding: 20px;
}

.code-line {
  font-size: 12px;
  line-height: 1.9;
}

.code-comment { color: #555; }
.code-key { color: #ccc; }
.code-val { color: var(--text-muted); }
.toggle-on { color: #28c840; }
.code-btn {
  display: inline-block;
  background: var(--yellow);
  color: #111;
  border-radius: 4px;
  padding: 2px 8px;
  font-weight: 700;
  font-size: 11px;
}
.code-path { color: #888; }
.code-success { color: #28c840; }

@media (max-width: 800px) {
  .install-card {
    grid-template-columns: 1fr;
    padding: 32px 24px;
    gap: 32px;
  }
}

/* ─── FOOTER ───────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-name {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--yellow);
}

.footer-version {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--yellow); }

.footer-support {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 14px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-support-text {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
}

.bmc-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--yellow);
  color: #111;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 13px;
  padding: 10px 22px;
  border-radius: 100px;
  text-decoration: none;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(255, 214, 0, 0.2);
}

.bmc-btn:hover {
  background: #ffe033;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255, 214, 0, 0.35);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--mono);
}

.footer-bottom a {
  color: var(--yellow);
  opacity: 0.7;
}
.footer-bottom a:hover { opacity: 1; }

/* ─── SCROLL ANIMATIONS ────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── RESPONSIVE ───────────────────────────────────────────────── */
@media (max-width: 600px) {
  .hero { padding: 120px 0 60px; }
  .hero-meta { gap: 12px; font-size: 11px; }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}