@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

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

:root {
  --bg: #080b12;
  --bg2: #0d1117;
  --card: rgba(255,255,255,0.04);
  --border: rgba(255,255,255,0.08);
  --blue: #3b82f6;
  --purple: #8b5cf6;
  --cyan: #06b6d4;
  --gold: #f59e0b;
  --text: #e2e8f0;
  --muted: #64748b;
  --radius: 16px;
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); overflow-x: hidden; }

/* ===== NAV ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 24px;
  background: rgba(8, 11, 18, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s;
}
.nav.scrolled { background: rgba(8, 11, 18, 0.95); }
.nav-container { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; height: 68px; gap: 32px; }
.nav-logo { display: flex; align-items: center; gap: 8px; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 18px; color: white; text-decoration: none; }
.logo-icon { font-size: 22px; }
.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: white; }
.nav-cta { margin-left: 16px; }
.btn-nav {
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: white; border: none; border-radius: 8px;
  padding: 8px 18px; font-size: 13px; font-weight: 600;
  text-decoration: none; transition: all 0.2s; display: inline-block;
}
.btn-nav:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(59,130,246,0.4); }
.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; transition: all 0.3s; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 120px 24px 80px; position: relative; overflow: hidden;
}
.orb {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.15; pointer-events: none;
  animation: float 8s ease-in-out infinite;
}
.orb-1 { width: 600px; height: 600px; background: var(--blue); top: -200px; left: -200px; animation-delay: 0s; }
.orb-2 { width: 500px; height: 500px; background: var(--purple); top: 100px; right: -150px; animation-delay: 3s; }
.orb-3 { width: 400px; height: 400px; background: var(--cyan); bottom: -100px; left: 40%; animation-delay: 5s; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-30px)} }

.hero-container { max-width: 1200px; margin: 0 auto; width: 100%; display: flex; flex-direction: column; align-items: center; text-align: center; position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.3);
  border-radius: 50px; padding: 6px 16px; font-size: 13px; font-weight: 500; color: #93c5fd;
  margin-bottom: 32px;
}
.badge-dot { width: 7px; height: 7px; background: #3b82f6; border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{box-shadow:0 0 4px #3b82f6} 50%{box-shadow:0 0 12px #3b82f6} }

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(48px, 8vw, 88px); font-weight: 800; line-height: 1.05;
  letter-spacing: -0.03em; color: white; margin-bottom: 24px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--blue) 0%, var(--purple) 50%, var(--cyan) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  animation: gradient-shift 4s ease infinite; background-size: 200%;
}
@keyframes gradient-shift { 0%,100%{background-position:0%} 50%{background-position:100%} }

.hero-sub { font-size: clamp(16px, 2vw, 20px); color: var(--muted); max-width: 600px; line-height: 1.7; margin-bottom: 40px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; margin-bottom: 48px; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: white; border: none; border-radius: 12px;
  padding: 14px 28px; font-size: 15px; font-weight: 600;
  cursor: pointer; text-decoration: none; transition: all 0.3s;
  position: relative; overflow: hidden;
}
.btn-primary::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  opacity: 0; transition: opacity 0.3s;
}
.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(59,130,246,0.5); }
.btn-primary span, .btn-primary svg { position: relative; }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--text); border: 1px solid var(--border);
  border-radius: 12px; padding: 14px 28px; font-size: 15px; font-weight: 500;
  cursor: pointer; text-decoration: none; transition: all 0.3s;
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.3); background: rgba(255,255,255,0.05); }

.hero-stats { display: flex; align-items: center; gap: 32px; margin-bottom: 64px; }
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num { font-family: 'Space Grotesk', sans-serif; font-size: 28px; font-weight: 700; color: white; }
.stat-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

/* MOCKUP */
.hero-mockup { width: 100%; max-width: 560px; }
.mockup-browser {
  background: #161b22; border: 1px solid var(--border); border-radius: 12px;
  overflow: hidden; box-shadow: 0 40px 80px rgba(0,0,0,0.6);
}
.browser-bar {
  background: #0d1117; padding: 12px 16px; display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid var(--border);
}
.browser-dots { display: flex; gap: 6px; }
.browser-dots span { width: 12px; height: 12px; border-radius: 50%; }
.browser-dots span:nth-child(1) { background: #ff5f57; }
.browser-dots span:nth-child(2) { background: #febc2e; }
.browser-dots span:nth-child(3) { background: #28c840; }
.browser-url { flex: 1; background: rgba(255,255,255,0.05); border-radius: 6px; padding: 4px 12px; font-size: 12px; color: var(--muted); }

.mockup-popup { padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.popup-header { display: flex; justify-content: space-between; align-items: center; }
.popup-logo { display: flex; align-items: center; gap: 6px; font-weight: 700; font-size: 14px; color: white; }
.popup-plan { font-size: 10px; font-weight: 700; padding: 3px 10px; border-radius: 20px; text-transform: uppercase; }
.popup-plan.pro { background: rgba(59,130,246,0.2); color: #93c5fd; border: 1px solid rgba(59,130,246,0.3); }
.popup-user { background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: 10px; padding: 10px; }
.popup-email { font-size: 12px; color: var(--muted); display: block; margin-bottom: 8px; }
.popup-quota { font-size: 11px; color: #64748b; }
.popup-bar { height: 4px; background: #1e293b; border-radius: 4px; margin-top: 5px; overflow: hidden; }
.popup-fill { height: 100%; background: linear-gradient(90deg, var(--blue), var(--purple)); border-radius: 4px; }
.popup-status { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--muted); }
.status-pulse { width: 7px; height: 7px; background: #22c55e; border-radius: 50%; flex-shrink: 0; animation: pulse 2s infinite; }

.popup-solve-btn {
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: white; border: none; border-radius: 8px;
  padding: 12px; font-size: 14px; font-weight: 700; text-align: center;
  cursor: pointer; position: relative; overflow: hidden;
  animation: glow-btn 2s ease-in-out infinite;
}
@keyframes glow-btn { 0%,100%{box-shadow:0 0 10px rgba(59,130,246,0.3)} 50%{box-shadow:0 0 25px rgba(139,92,246,0.6)} }

/* ===== SECTIONS SHARED ===== */
.section-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-badge {
  display: inline-block; background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.3);
  color: #93c5fd; border-radius: 50px; padding: 4px 14px;
  font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.section-title { font-family: 'Space Grotesk', sans-serif; font-size: clamp(28px, 4vw, 48px); font-weight: 700; color: white; margin-bottom: 16px; letter-spacing: -0.02em; }
.section-sub { font-size: 17px; color: var(--muted); max-width: 580px; line-height: 1.7; margin-bottom: 56px; }

/* ===== FEATURES ===== */
.features { padding: 100px 24px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.feature-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; transition: all 0.3s;
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.05), transparent);
  opacity: 0; transition: opacity 0.3s;
}
.feature-card:hover { border-color: rgba(59,130,246,0.3); transform: translateY(-4px); }
.feature-card:hover::before { opacity: 1; }
.feature-card.featured {
  grid-column: span 2; background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(139,92,246,0.05));
  border-color: rgba(59,130,246,0.3);
}
.feature-icon { font-size: 32px; margin-bottom: 16px; }
.feature-card h3 { font-size: 18px; font-weight: 600; color: white; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--muted); line-height: 1.7; }
.feature-tag { display: inline-block; margin-top: 16px; font-size: 11px; font-weight: 600; padding: 3px 10px; background: rgba(59,130,246,0.15); color: #93c5fd; border-radius: 20px; }
.feature-card.disabled { color: var(--muted); opacity: 0.4; }

/* ===== HOW IT WORKS ===== */
.how-it-works { padding: 100px 24px; background: linear-gradient(180deg, transparent, rgba(59,130,246,0.03), transparent); }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; position: relative; }
.step {
  display: flex; flex-direction: column; align-items: flex-start;
  padding: 40px 32px; position: relative;
  border: 1px solid var(--border); border-radius: 0;
  background: var(--card);
}
.step:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.step:last-child { border-radius: 0 var(--radius) var(--radius) 0; }
.step-number {
  font-family: 'Space Grotesk', sans-serif; font-size: 52px; font-weight: 800;
  background: linear-gradient(135deg, rgba(59,130,246,0.3), rgba(139,92,246,0.3));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 20px; line-height: 1;
}
.step h3 { font-size: 20px; font-weight: 600; color: white; margin-bottom: 12px; }
.step p { font-size: 14px; color: var(--muted); line-height: 1.7; }
.step-arrow {
  position: absolute; right: -18px; top: 50%; transform: translateY(-50%);
  width: 36px; height: 36px; background: var(--bg2); border: 1px solid var(--border);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 14px; z-index: 2; color: var(--blue); font-weight: 700;
}
.step-arrow.last { color: #22c55e; }

/* ===== PRICING ===== */
.pricing { padding: 100px 24px; position: relative; overflow: hidden; }
.orb-pricing { width: 700px; height: 700px; background: var(--purple); top: 50%; left: 50%; transform: translate(-50%,-50%); opacity: 0.06; }
.billing-toggle { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 48px; }
.toggle-label { font-size: 14px; font-weight: 500; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.toggle-label.active { color: white; }
.save-badge { background: rgba(34,197,94,0.15); color: #86efac; border-radius: 20px; padding: 2px 8px; font-size: 11px; font-weight: 600; border: 1px solid rgba(34,197,94,0.2); }
.billing-switch { position: relative; display: inline-block; width: 48px; height: 26px; }
.billing-switch input { opacity: 0; width: 0; height: 0; }
.billing-slider { position: absolute; inset: 0; background: #1e293b; border-radius: 26px; cursor: pointer; border: 1px solid var(--border); transition: 0.3s; }
.billing-slider::before { content: ''; position: absolute; width: 18px; height: 18px; background: var(--muted); border-radius: 50%; left: 3px; top: 3px; transition: 0.3s; }
.billing-switch input:checked + .billing-slider { background: rgba(59,130,246,0.3); border-color: var(--blue); }
.billing-switch input:checked + .billing-slider::before { transform: translateX(22px); background: var(--blue); }

.plans-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 960px; margin: 0 auto 32px; position: relative; z-index: 1; }
.plan-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px; display: flex; flex-direction: column; position: relative; transition: all 0.3s;
}
.plan-card:hover { transform: translateY(-4px); }
.plan-card.pro { border-color: rgba(59,130,246,0.5); background: linear-gradient(135deg, rgba(59,130,246,0.08), rgba(139,92,246,0.05)); }
.plan-card.elite { border-color: rgba(245,158,11,0.4); background: linear-gradient(135deg, rgba(245,158,11,0.06), rgba(239,68,68,0.03)); }
.popular-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: white; font-size: 11px; font-weight: 700; padding: 4px 16px; border-radius: 20px;
  white-space: nowrap;
}
.plan-header { margin-bottom: 28px; }
.plan-name { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 12px; }
.plan-price-wrap { display: flex; align-items: flex-end; gap: 6px; }
.plan-price { font-family: 'Space Grotesk', sans-serif; font-size: 44px; font-weight: 700; color: white; line-height: 1; }
.plan-period { font-size: 14px; color: var(--muted); margin-bottom: 6px; }
.plan-features { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; flex: 1; }
.plan-features li { font-size: 14px; color: var(--muted); display: flex; gap: 8px; }
.plan-features li strong { color: white; }
.plan-features li.disabled { opacity: 0.4; }
.plan-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; padding: 13px; border-radius: 10px;
  font-size: 14px; font-weight: 600; cursor: pointer; text-decoration: none;
  border: none; transition: all 0.3s;
}
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: rgba(255,255,255,0.3); background: rgba(255,255,255,0.05); }
.btn-elite {
  background: linear-gradient(135deg, var(--gold), #ef4444);
  color: white;
}
.btn-elite:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(245,158,11,0.4); }
.pricing-note { text-align: center; font-size: 13px; color: var(--muted); }

/* Ko-fi activation steps */
.kofi-note { margin: 24px auto 16px; max-width: 800px; position: relative; z-index: 1; }
.kofi-steps { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; }
.kofi-step {
  display: flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 16px; font-size: 13px; color: var(--text);
}
.kofi-step span {
  width: 22px; height: 22px;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: white; flex-shrink: 0;
}
.kofi-arrow { color: var(--muted); font-size: 18px; }

/* ===== FAQ ===== */
.faq { padding: 80px 24px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 48px; }
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.faq-item h4 { font-size: 16px; font-weight: 600; color: white; margin-bottom: 10px; }
.faq-item p { font-size: 14px; color: var(--muted); line-height: 1.7; }

/* ===== FINAL CTA ===== */
.final-cta { padding: 100px 24px; text-align: center; position: relative; overflow: hidden; }
.orb-cta { width: 600px; height: 600px; background: var(--blue); top: 50%; left: 50%; transform: translate(-50%,-50%); opacity: 0.08; }
.final-cta h2 { font-family: 'Space Grotesk', sans-serif; font-size: clamp(28px, 4vw, 52px); font-weight: 700; color: white; margin-bottom: 16px; position: relative; z-index: 1; }
.final-cta p { font-size: 17px; color: var(--muted); margin-bottom: 36px; position: relative; z-index: 1; }
.btn-large { padding: 18px 36px; font-size: 17px; position: relative; z-index: 1; }

/* ===== FOOTER ===== */
.footer { border-top: 1px solid var(--border); padding: 60px 24px 24px; }
.footer-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 2fr; gap: 48px; margin-bottom: 40px; }
.footer-brand p { font-size: 14px; color: var(--muted); margin-top: 12px; max-width: 240px; line-height: 1.6; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-col h5 { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: white; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14px; color: var(--muted); text-decoration: none; margin-bottom: 10px; transition: color 0.2s; }
.footer-col a:hover { color: white; }
.footer-bottom { max-width: 1200px; margin: 0 auto; border-top: 1px solid var(--border); padding-top: 24px; text-align: center; }
.footer-bottom p { font-size: 12px; color: var(--muted); }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.8); backdrop-filter: blur(8px);
  z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 24px;
}
.modal {
  background: #0d1117; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 40px; max-width: 400px; width: 100%; position: relative;
  animation: modal-in 0.3s ease;
}
@keyframes modal-in { from{transform:scale(0.9);opacity:0} to{transform:scale(1);opacity:1} }
.modal-close { position: absolute; top: 16px; right: 16px; background: none; border: none; color: var(--muted); font-size: 18px; cursor: pointer; }
.modal-icon { font-size: 40px; text-align: center; margin-bottom: 16px; }
.modal h3 { font-size: 22px; font-weight: 700; color: white; text-align: center; margin-bottom: 8px; }
.modal p { font-size: 14px; color: var(--muted); text-align: center; margin-bottom: 24px; }
.modal-form { display: flex; flex-direction: column; gap: 12px; }
.modal-form input {
  background: rgba(255,255,255,0.05); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 16px; color: white; font-size: 14px; outline: none; transition: border-color 0.2s; font-family: inherit;
}
.modal-form input:focus { border-color: var(--blue); }
.modal-form input::placeholder { color: var(--muted); }
.modal-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; border-radius: 8px; padding: 10px; font-size: 13px; }
.modal-form .btn-primary { justify-content: center; }

/* ===== UTILS ===== */
.hidden { display: none !important; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; margin-left: auto; }
  .feature-card.featured { grid-column: span 1; }
  .steps-grid { grid-template-columns: 1fr; }
  .step:first-child { border-radius: var(--radius) var(--radius) 0 0; }
  .step:last-child { border-radius: 0 0 var(--radius) var(--radius); }
  .step-arrow { display: none; }
  .plans-grid { grid-template-columns: 1fr; max-width: 380px; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: 16px; }
}