/* ============================================
   Bonsai Landing Page — Brand Styles
   Mint: #00ffb4 | BG: #000 | Font: Outfit
   ============================================ */

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

:root {
  --bg: #000000;
  --surface: #0a0a0a;
  --surface-2: #111111;
  --border: rgba(0,255,180,0.08);
  --border-hover: rgba(0,255,180,0.2);
  --border-active: rgba(0,255,180,0.35);
  --text: #e0fff2;
  --text-dim: #3d7a65;
  --text-sub: #6db89e;
  --text-muted: #1a3d30;
  --mint: #00ffb4;
  --mint-glow: rgba(0,255,180,0.08);
  --mint-glow-strong: rgba(0,255,180,0.15);
  --error: #ff5050;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --container: 1100px;
  --transition: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* GLOW */
.glow {
  position: fixed;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0,255,180,0.04) 0%, transparent 70%);
  pointer-events: none;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: glowPulse 8s ease-in-out infinite;
  z-index: 0;
}
@keyframes glowPulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.1); }
}

/* CONTAINER */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* MINT TEXT */
.mint { color: var(--mint); }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--mint);
  color: #000;
  box-shadow: 0 2px 20px var(--mint-glow-strong);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px var(--mint-glow-strong);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--border-hover);
  background: rgba(0,255,180,0.03);
}
.btn-nav {
  padding: 8px 18px;
  font-size: 13px;
  background: var(--mint);
  color: #000;
}
.btn-large { padding: 14px 28px; font-size: 16px; border-radius: var(--radius); }
.btn-full { width: 100%; }
.btn-small { padding: 8px 16px; font-size: 13px; }

/* NAV */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 14px 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.nav.scrolled { border-bottom-color: var(--border); background: rgba(0,0,0,0.92); }
.nav-inner { display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo { flex-shrink: 0; }
.brand-name { font-size: 22px; font-weight: 800; color: var(--mint); letter-spacing: -0.5px; }
.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a {
  font-size: 14px; font-weight: 600; color: var(--text-sub);
  transition: color var(--transition-fast);
}
.nav-links a:hover { color: var(--mint); }
.nav-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; }

/* MOBILE MENU */
.mobile-menu {
  display: none;
  position: fixed; top: 56px; left: 0; right: 0;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px; z-index: 99;
  flex-direction: column; gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 12px 0; font-weight: 600; color: var(--text-sub); border-bottom: 1px solid var(--border); }
.mobile-menu a:last-child { border-bottom: none; margin-top: 8px; }

/* HERO */
.hero {
  padding: 160px 0 100px;
  text-align: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px;
  background: var(--mint-glow);
  border: 1px solid rgba(0,255,180,0.15);
  border-radius: 100px;
  font-size: 13px; font-weight: 700; color: var(--mint);
  margin-bottom: 28px;
}
.hero-title {
  font-size: 64px; font-weight: 800;
  line-height: 1.08; letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 18px; color: var(--text-sub);
  max-width: 600px; margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-ctas { display: flex; gap: 16px; justify-content: center; margin-bottom: 48px; flex-wrap: wrap; }
.hero-trust {
  display: flex; justify-content: center; gap: 28px;
  flex-wrap: wrap;
}
.trust-row {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--text-dim);
}

/* SECTIONS */
.section-header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 56px;
}
.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--mint-glow);
  border: 1px solid rgba(0,255,180,0.12);
  border-radius: 100px;
  font-size: 11px; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--mint);
  margin-bottom: 16px;
}
.section-title {
  font-size: 42px; font-weight: 800;
  line-height: 1.12; letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.section-sub { font-size: 16px; color: var(--text-sub); line-height: 1.7; }

/* DEMO SECTION */
.demo-section { padding: 80px 0; }
.demo-card {
  max-width: 760px; margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: 0 0 80px rgba(0,255,180,0.02);
}
.demo-input-row {
  display: flex; gap: 10px; align-items: stretch; flex-wrap: wrap;
}
.input-wrap {
  flex: 1; min-width: 200px;
  display: flex; align-items: center; gap: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 14px;
  transition: border-color var(--transition-fast);
}
.input-wrap:focus-within { border-color: var(--border-active); }
.input-icon { color: var(--text-dim); flex-shrink: 0; }
.input-wrap input {
  flex: 1;
  background: none; border: none; outline: none;
  color: var(--text); font-size: 14px; font-family: inherit;
  padding: 12px 0;
}
.input-wrap input::placeholder { color: var(--text-muted); }
.format-select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--mint);
  font-size: 13px; font-weight: 700; font-family: inherit;
  padding: 10px 14px;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition-fast);
}
.format-select:hover, .format-select:focus { border-color: var(--border-active); }

/* Loading / Error / Output */
.demo-loading {
  display: none; align-items: center; gap: 12px;
  padding: 20px 0; color: var(--text-sub); font-size: 14px;
}
.demo-loading.visible { display: flex; }
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--mint);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.demo-error {
  display: none; align-items: center; gap: 10px;
  padding: 14px 16px;
  background: rgba(255,80,80,0.06);
  border: 1px solid rgba(255,80,80,0.15);
  border-radius: var(--radius);
  color: var(--error); font-size: 13px;
  margin-top: 14px;
}
.demo-error.visible { display: flex; }

.manual-entry {
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.manual-entry summary {
  padding: 12px 16px;
  font-size: 13px; font-weight: 600; color: var(--text-dim);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition-fast);
}
.manual-entry summary::-webkit-details-marker { display: none; }
.manual-entry summary:hover { color: var(--text-sub); }
.manual-fields { padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.manual-row { display: flex; gap: 12px; flex-wrap: wrap; }
.field-group { flex: 1; min-width: 140px; display: flex; flex-direction: column; gap: 6px; }
.field-group.flex-2 { flex: 2; }
.field-group label { font-size: 12px; font-weight: 700; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; }
.field-group input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text); font-size: 14px; font-family: inherit;
  padding: 10px 12px;
  outline: none;
  transition: border-color var(--transition-fast);
}
.field-group input:focus { border-color: var(--border-active); }
.field-group input::placeholder { color: var(--text-muted); }

.demo-output { display: none; flex-direction: column; gap: 16px; margin-top: 20px; }
.demo-output.visible { display: flex; }
.output-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.output-label {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 12px; font-weight: 700; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.copy-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  background: var(--mint-glow);
  border: 1px solid rgba(0,255,180,0.15);
  border-radius: 6px;
  color: var(--mint); font-size: 11px; font-weight: 700; font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.copy-btn:hover { background: rgba(0,255,180,0.15); }
.copy-btn.copied { background: var(--mint); color: #000; }
.output-text {
  padding: 14px;
  font-family: 'Times New Roman', serif;
  font-size: 15px; line-height: 1.7;
  color: var(--text-sub);
}
.output-text em { font-style: italic; color: var(--text); }
.output-inline { font-family: inherit; font-size: 14px; color: var(--mint); font-weight: 600; }

.demo-cta {
  display: none; text-align: center; margin-top: 24px; padding-top: 24px;
  border-top: 1px solid var(--border);
}
.demo-cta.visible { display: block; }
.demo-cta p { font-size: 14px; color: var(--text-dim); margin-bottom: 14px; }

/* HOW IT WORKS */
.how-section { padding: 80px 0; border-top: 1px solid var(--border); }
.steps {
  display: flex; align-items: flex-start; justify-content: center;
}
.step { text-align: center; max-width: 260px; padding: 0 20px; }
.step-num {
  font-size: 12px; font-weight: 800; color: var(--mint);
  letter-spacing: 0.1em; margin-bottom: 16px;
}
.step h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }
.step-line {
  flex: 1; max-width: 60px; height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
  margin-top: 8px; position: relative;
}
.step-line::before {
  content: ''; position: absolute;
  right: 0; top: -3px;
  width: 7px; height: 7px;
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  transform: rotate(45deg);
}

/* FEATURES */
.features-section { padding: 80px 0; background: var(--surface); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}
.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.feature-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--mint-glow);
  border-radius: 10px;
  color: var(--mint);
  margin-bottom: 16px;
}
.feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.feature-card p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

/* BIBLIOGRAPHY BUILDER DEMO */
.bib-demo-section { padding: 80px 0; }
.bib-demo-card {
  max-width: 640px; margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
}
.bib-demo-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.bib-demo-header h3 { font-size: 18px; font-weight: 800; }
.bib-format-pick select {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--mint);
  font-size: 12px; font-weight: 700; font-family: inherit;
  cursor: pointer; outline: none;
}

.bib-mode-toggle {
  display: flex;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px;
  margin-bottom: 14px;
}
.bib-mode-btn {
  flex: 1;
  padding: 8px;
  border: none; background: none;
  color: var(--text-sub);
  font-size: 12px; font-weight: 700; font-family: inherit;
  cursor: pointer; border-radius: 7px;
  transition: all var(--transition-fast);
}
.bib-mode-btn:hover { color: var(--mint); }
.bib-mode-btn.active { background: var(--mint-glow); color: var(--mint); }

.bib-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.bib-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--mint);
  border-radius: var(--radius);
  padding: 12px 14px;
  transition: all var(--transition-fast);
  display: flex; flex-direction: column; gap: 8px;
}
.bib-item:hover { border-color: var(--border-hover); }
.bib-item-row { display: flex; align-items: flex-start; gap: 10px; }
.bib-item-text {
  flex: 1;
  font-size: 13px; font-family: 'Times New Roman', serif;
  color: var(--text-dim); line-height: 1.6;
}
.bib-item-text em { font-style: italic; color: var(--text-sub); }
.bib-item-remove {
  background: none; border: none;
  color: var(--text-muted); cursor: pointer;
  font-size: 16px; padding: 0 2px; flex-shrink: 0;
  transition: color var(--transition-fast);
}
.bib-item-remove:hover { color: var(--error); }
.bib-annotation {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12px; color: var(--text);
  font-family: 'Outfit', sans-serif;
  min-height: 56px; resize: vertical;
  outline: none;
  transition: all var(--transition-fast);
  line-height: 1.5;
}
.bib-annotation:focus { border-color: var(--mint); box-shadow: 0 0 0 3px rgba(0,255,180,0.06); }
.bib-annotation::placeholder { color: var(--text-muted); }

.bib-add-row { display: flex; gap: 8px; margin-bottom: 14px; }
.bib-add-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text); font-size: 13px; font-family: inherit;
  padding: 10px 14px;
  outline: none;
  transition: border-color var(--transition-fast);
}
.bib-add-input:focus { border-color: var(--border-active); }
.bib-add-input::placeholder { color: var(--text-muted); }

.bib-actions { display: flex; flex-direction: column; gap: 8px; }

/* PRICING */
.pricing-section { padding: 80px 0; background: var(--surface); }
.pricing-card {
  max-width: 480px; margin: 0 auto;
  background: var(--bg);
  border: 2px solid var(--mint);
  border-radius: var(--radius-xl);
  padding: 44px;
  text-align: center;
  position: relative;
  box-shadow: 0 0 80px rgba(0,255,180,0.05);
}
.pricing-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  padding: 4px 18px;
  background: var(--mint); color: #000;
  font-size: 11px; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.08em;
  border-radius: 100px;
}
.pricing-price { margin: 20px 0 8px; }
.currency { font-size: 22px; font-weight: 700; vertical-align: top; color: var(--text-sub); }
.amount { font-size: 72px; font-weight: 800; line-height: 1; letter-spacing: -0.04em; }
.period { font-size: 15px; color: var(--text-dim); }
.pricing-features { list-style: none; text-align: left; margin: 28px 0; }
.pricing-features li {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 0;
  font-size: 14px; color: var(--text-sub);
  border-bottom: 1px solid var(--border);
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features svg { flex-shrink: 0; }

/* FAQ */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 680px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item[open] { border-color: var(--border-active); }
.faq-item summary {
  padding: 18px 22px;
  font-size: 15px; font-weight: 700;
  cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between;
  transition: color var(--transition-fast);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; font-size: 20px; font-weight: 400;
  color: var(--text-dim); transition: transform var(--transition);
  flex-shrink: 0; margin-left: 16px;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--mint); }
.faq-item p {
  padding: 0 22px 18px;
  font-size: 14px; color: var(--text-sub); line-height: 1.7;
}

/* INSTALL CTA */
.install-section { padding: 100px 0; }
.install-card {
  text-align: center;
  max-width: 600px; margin: 0 auto;
}
.install-title {
  font-size: 44px; font-weight: 800;
  line-height: 1.12; letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.install-sub {
  font-size: 17px; color: var(--text-sub);
  margin-bottom: 32px; line-height: 1.7;
}
.install-note { margin-top: 14px; font-size: 13px; color: var(--text-dim); }

/* FOOTER */
.footer { padding: 32px 0; border-top: 1px solid var(--border); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-copy { font-size: 13px; color: var(--text-dim); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 13px; color: var(--text-dim); transition: color var(--transition-fast); }
.footer-links a:hover { color: var(--text-sub); }

/* TOAST */
.toast {
  position: fixed; bottom: 30px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--mint); color: #000;
  padding: 10px 22px; border-radius: var(--radius);
  font-weight: 700; font-size: 13px;
  opacity: 0;
  transition: all var(--transition);
  z-index: 200; pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 48px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav .btn-nav { display: none; }
  .nav-toggle { display: flex; margin-left: auto; }
  .hero { padding: 120px 0 60px; }
  .hero-title { font-size: 38px; }
  .hero-sub { font-size: 16px; }
  .section-title { font-size: 32px; }
  .steps { flex-direction: column; align-items: center; gap: 32px; }
  .step-line { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .install-title { font-size: 34px; }
  .amount { font-size: 56px; }
  .demo-card { padding: 24px; }
  .demo-input-row { flex-direction: column; }
  .format-select { width: 100%; }
  .footer-inner { flex-direction: column; text-align: center; }
  .hero-trust { gap: 14px; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 32px; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .btn-large { width: 100%; }
  .section-title { font-size: 28px; }
  .install-title { font-size: 28px; }
  .pricing-card { padding: 28px 20px; }
}