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

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

:root {
  --primary: #6C5CE7;
  --primary-glow: rgba(108, 92, 231, 0.15);
  --accent: #A29BFE;
  --bg: #0B0B10;
  --card-bg: #12121C;
  --border: #1E1E32;
  --text: #EEEEF2;
  --text-muted: #7B7B9E;
  --radius: 12px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Background glows */
.bg-glow {
  position: fixed; border-radius: 50%; pointer-events: none; filter: blur(120px); opacity: 0.4; z-index: -1;
}
.bg-glow-1 { width: 500px; height: 500px; background: var(--primary-glow); top: -100px; left: -100px; }
.bg-glow-2 { width: 400px; height: 400px; background: rgba(96,165,250,0.08); bottom: -50px; right: -50px; }

/* Header */
header { padding: 24px 0 40px; }
.header-inner { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; }
.logo-row { display: flex; align-items: center; gap: 10px; }
.logo-img { width: 40px; height: 40px; object-fit: contain; mix-blend-mode: lighten; }
.logo-text { font-size: 1.4rem; font-weight: 700; background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
h1 { font-size: 2.4rem; font-weight: 700; text-align: center; }
.subtitle { text-align: center; color: var(--text-muted); font-size: 1.1rem; margin-top: 8px; }

.btn-upgrade {
  display: flex; align-items: center; gap: 6px; padding: 10px 20px;
  background: linear-gradient(135deg, #FFD93D, #FFB800); color: #1a1a1a;
  border: none; border-radius: 8px; font-weight: 600; font-size: 0.85rem;
  cursor: pointer; font-family: inherit; transition: all 0.25s;
}
.btn-upgrade:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(255,184,0,0.3); }

/* App Layout */
.app-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 32px 0; }

.panel {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; position: relative;
}
.panel-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 20px; }

.input-panel { overflow-y: auto; max-height: 80vh; }

/* Inputs */
.input-group { margin-bottom: 14px; }
.input-group label { display: block; font-size: 0.8rem; font-weight: 500; color: var(--text-muted); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.5px; }
.input-group input, .input-group select, .input-group textarea {
  width: 100%; padding: 10px 14px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 0.95rem; font-family: inherit;
  transition: border-color 0.2s;
}
.input-group input:focus, .input-group textarea:focus { outline: none; border-color: var(--primary); }
.input-hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; display: block; }
.input-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.section-title {
  font-size: 0.9rem; font-weight: 600; margin: 20px 0 12px;
  padding-top: 16px; border-top: 1px solid var(--border);
}

/* Template Grid */
.template-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.template-btn {
  padding: 10px; background: var(--bg); border: 2px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 0.85rem; font-weight: 500;
  cursor: pointer; font-family: inherit; transition: all 0.2s; position: relative;
}
.template-btn:hover { border-color: var(--primary); }
.template-btn.active { border-color: var(--primary); background: var(--primary-glow); }
.pro-template { opacity: 0.6; }

/* Color Picker */
.color-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; position: relative; }
.color-pick { display: flex; align-items: center; gap: 8px; }
.color-pick input[type="color"] { width: 36px; height: 36px; border: 1px solid var(--border); border-radius: 6px; cursor: pointer; background: none; padding: 2px; }
.color-pick span { font-size: 0.85rem; color: var(--text-muted); font-family: monospace; }

/* PRO features */
.pro-feature { position: relative; overflow: hidden; border-radius: var(--radius); padding: 12px; margin-bottom: 14px; }
.pro-overlay {
  position: absolute; inset: 0; background: rgba(11,11,16,0.8);
  backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius); z-index: 2;
}
.btn-unlock {
  padding: 10px 24px; background: linear-gradient(135deg, #FFD93D, #FFB800);
  color: #1a1a1a; border: none; border-radius: 8px; font-weight: 600;
  font-size: 0.85rem; cursor: pointer; font-family: inherit;
}
.pro-input { opacity: 0.4; pointer-events: none; }
.badge { font-size: 0.65rem; background: linear-gradient(135deg, #FFD93D, #FFB800); color: #1a1a1a; padding: 2px 6px; border-radius: 4px; font-weight: 700; text-transform: uppercase; vertical-align: middle; }
.lock-icon { font-size: 0.85rem; vertical-align: middle; }

/* Preview Panel */
.preview-panel { position: sticky; top: 24px; align-self: start; }
.preview-label { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 16px; }
.preview-bg { background: #ffffff; border-radius: 8px; padding: 24px; min-height: 200px; }
.sig-preview { font-family: Arial, sans-serif; font-size: 14px; color: #1F2937; line-height: 1.4; }

/* Action Buttons */
.action-buttons { display: flex; gap: 10px; margin-top: 16px; }
.btn-copy, .btn-copy-html {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px; border: none; border-radius: 8px; font-size: 0.9rem;
  font-weight: 600; cursor: pointer; font-family: inherit; transition: all 0.25s;
}
.btn-copy { background: var(--primary); color: white; }
.btn-copy:hover { background: #1d4ed8; transform: translateY(-1px); }
.btn-copy-html { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-copy-html:hover { border-color: var(--primary); }
.copy-hint { text-align: center; color: var(--text-muted); font-size: 0.8rem; margin-top: 10px; }

/* Ad Slots */
.ad-slot { min-height: 90px; margin: 24px 0; border-radius: var(--radius); overflow: hidden; }

/* Pricing */
.pricing { margin-top: 60px; text-align: center; }
.pricing h2 { font-size: 1.8rem; margin-bottom: 8px; }
.pricing-subtitle { color: var(--text-muted); margin-bottom: 32px; }
.pricing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 700px; margin: 0 auto; }
.pricing-card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px 24px; text-align: center;
}
.pricing-card-pro { border-color: var(--primary); position: relative; }
.pricing-popular {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: white; font-size: 0.75rem; font-weight: 600;
  padding: 4px 16px; border-radius: 20px;
}
.pricing-name { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; }
.pricing-price { font-size: 2.5rem; font-weight: 700; }
.pricing-period { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 20px; }
.pricing-features { list-style: none; text-align: left; margin-bottom: 24px; }
.pricing-features li { padding: 6px 0; font-size: 0.9rem; }
.pricing-features li.included::before { content: '\2714'; color: #00C9A7; margin-right: 8px; }
.pricing-features li.excluded::before { content: '\2718'; color: #4a4a6a; margin-right: 8px; }
.pricing-features li.excluded { color: var(--text-muted); }
.pricing-current { color: var(--text-muted); font-size: 0.9rem; font-weight: 500; }
.btn-buy {
  width: 100%; padding: 14px; background: linear-gradient(135deg, #FFD93D, #FFB800);
  color: #1a1a1a; border: none; border-radius: 10px; font-size: 1rem;
  font-weight: 700; cursor: pointer; font-family: inherit; transition: all 0.25s;
}
.btn-buy:hover { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(255,184,0,0.3); }

/* How To */
.how-to { margin-top: 60px; }
.how-to h2 { text-align: center; font-size: 1.8rem; margin-bottom: 32px; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step-card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; text-align: center;
}
.step-num {
  width: 40px; height: 40px; background: var(--primary); color: white;
  border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.1rem; margin-bottom: 12px;
}
.step-card h3 { margin-bottom: 8px; }
.step-card p { color: var(--text-muted); font-size: 0.9rem; }

/* FAQ */
.faq { margin-top: 60px; }
.faq h2 { text-align: center; font-size: 1.8rem; margin-bottom: 32px; }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.faq-item {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; cursor: pointer; transition: border-color 0.25s;
}
.faq-item:hover { border-color: var(--primary); }
.faq-item summary { font-weight: 600; font-size: 0.95rem; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::after { content: '+'; font-size: 1.2rem; color: var(--text-muted); }
.faq-item[open] summary::after { content: '-'; }
.faq-item p { margin-top: 12px; color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 16px;
  padding: 40px; max-width: 420px; width: 90%; text-align: center; position: relative;
}
.modal-close {
  position: absolute; top: 12px; right: 16px; background: none; border: none;
  color: var(--text-muted); font-size: 1.5rem; cursor: pointer;
}
.modal-icon { margin-bottom: 16px; color: #FFB800; }
.modal h2 { margin-bottom: 8px; }
.modal p { color: var(--text-muted); font-size: 0.9rem; }
.modal-price { margin: 20px 0; }
.modal-amount { font-size: 2.5rem; font-weight: 700; }
.modal-once { display: block; color: var(--text-muted); font-size: 0.85rem; }
.modal-perks { list-style: none; text-align: left; margin: 20px 0; }
.modal-perks li { padding: 6px 0; font-size: 0.9rem; }
.modal-perks li::before { content: '\2714'; color: #00C9A7; margin-right: 8px; }
.btn-buy-modal {
  width: 100%; padding: 14px; background: linear-gradient(135deg, #FFD93D, #FFB800);
  color: #1a1a1a; border: none; border-radius: 10px; font-size: 1rem;
  font-weight: 700; cursor: pointer; font-family: inherit; transition: all 0.25s;
}
.btn-buy-modal:hover { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(255,184,0,0.3); }
.modal-footer { margin-top: 12px; font-size: 0.8rem; color: var(--text-muted); }

/* Footer */
footer { padding: 32px 0; text-align: center; color: var(--text-muted); font-size: 0.85rem; border-top: 1px solid var(--border); margin-top: 60px; }

/* Responsive */
@media (max-width: 768px) {
  .app-layout { grid-template-columns: 1fr; }
  .input-row { grid-template-columns: 1fr; }
  .template-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  h1 { font-size: 1.8rem; }
  .preview-panel { position: static; }
  .input-panel { max-height: none; }
}