/* CharitaNet Landing Page — Custom Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-accent: #10b981;
  --color-accent-dark: #059669;
  --color-surface: #f8fafc;
  --color-surface-dark: #0f172a;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--color-text);
  background: var(--color-surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s;
}
.nav.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.08); }
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 72px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.25rem; color: var(--color-primary);
  text-decoration: none;
}
.nav-logo-icon {
  width: 36px; height: 36px; background: var(--color-primary);
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
}
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a {
  color: var(--color-text-muted); text-decoration: none;
  font-size: 0.875rem; font-weight: 600; transition: color 0.2s;
}
.nav-links a:hover { color: var(--color-primary); }
.nav-cta {
  background: var(--color-primary); color: white !important;
  padding: 10px 24px; border-radius: 12px; font-weight: 700;
  transition: background 0.2s, transform 0.15s;
}
.nav-cta:hover { background: var(--color-primary-dark); transform: translateY(-1px); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle svg { width: 28px; height: 28px; color: var(--color-text); }

/* HERO */
.hero {
  padding: 160px 24px 100px;
  text-align: center;
  background: linear-gradient(180deg, #eff6ff 0%, var(--color-surface) 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -200px; right: -200px;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.08) 0%, transparent 70%);
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-primary-light); color: var(--color-primary);
  padding: 8px 20px; border-radius: 100px;
  font-size: 0.8rem; font-weight: 700; margin-bottom: 28px;
  letter-spacing: 0.05em; text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900; line-height: 1.15;
  max-width: 800px; margin: 0 auto 20px;
  color: var(--color-surface-dark);
}
.hero h1 span { color: var(--color-primary); }
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-muted); max-width: 640px;
  margin: 0 auto 40px; line-height: 1.7;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  background: var(--color-primary); color: white;
  padding: 16px 36px; border-radius: 14px; border: none;
  font-size: 1.05rem; font-weight: 700; cursor: pointer;
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(37,99,235,0.25);
}
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,0.3); }
.btn-secondary {
  background: white; color: var(--color-text);
  padding: 16px 36px; border-radius: 14px;
  border: 2px solid var(--color-border);
  font-size: 1.05rem; font-weight: 600; cursor: pointer;
  text-decoration: none; transition: border-color 0.2s, transform 0.15s;
}
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-2px); }
.hero-note {
  margin-top: 20px; font-size: 0.8rem;
  color: var(--color-text-muted); font-weight: 500;
}

/* SECTIONS */
.section {
  padding: 100px 24px; max-width: 1200px; margin: 0 auto;
}
.section-alt { background: white; }
.section-header {
  text-align: center; max-width: 700px; margin: 0 auto 64px;
}
.section-label {
  font-size: 0.75rem; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--color-primary); margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800; line-height: 1.25; margin-bottom: 16px;
}
.section-desc {
  font-size: 1.05rem; color: var(--color-text-muted); line-height: 1.7;
}

/* PROBLEM */
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 48px; }
.problem-card {
  background: white; border-radius: 20px; padding: 36px;
  border: 1px solid var(--color-border);
  transition: transform 0.2s, box-shadow 0.2s;
}
.problem-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.06); }
.problem-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 1.5rem;
}
.problem-icon.red { background: #fef2f2; }
.problem-icon.amber { background: #fffbeb; }
.problem-card h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 12px; }
.problem-card p { color: var(--color-text-muted); font-size: 0.95rem; line-height: 1.7; }
.solution-box {
  background: linear-gradient(135deg, #eff6ff, #f0fdf4);
  border-radius: 20px; padding: 40px; text-align: center;
  border: 2px solid #bfdbfe;
}
.solution-box h3 { font-size: 1.25rem; font-weight: 800; margin-bottom: 12px; color: var(--color-primary); }
.solution-box p { color: var(--color-text-muted); max-width: 600px; margin: 0 auto; line-height: 1.7; }

/* FEATURES */
.features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.feature-card {
  background: white; border-radius: 20px; padding: 36px;
  border: 1px solid var(--color-border);
  transition: transform 0.25s, box-shadow 0.25s;
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--color-primary); opacity: 0; transition: opacity 0.3s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: 0 20px 48px rgba(0,0,0,0.08); }
.feature-card:hover::before { opacity: 1; }
.feature-num {
  font-size: 0.7rem; font-weight: 800; color: var(--color-primary);
  background: var(--color-primary-light); display: inline-block;
  padding: 4px 12px; border-radius: 8px; margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.feature-card h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 14px; }
.feature-list { list-style: none; }
.feature-list li {
  padding: 6px 0; padding-left: 24px; position: relative;
  color: var(--color-text-muted); font-size: 0.9rem; line-height: 1.6;
}
.feature-list li::before {
  content: '✓'; position: absolute; left: 0; color: var(--color-accent); font-weight: 800;
}
.feature-screenshot {
  margin-top: 20px; background: #f1f5f9; border-radius: 12px;
  padding: 32px; text-align: center; color: var(--color-text-muted);
  font-size: 0.8rem; font-weight: 600; border: 2px dashed var(--color-border);
}

/* AUDIENCE */
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.audience-card {
  border-radius: 20px; padding: 40px;
  border: 2px solid var(--color-border);
}
.audience-card.yes { background: #f0fdf4; border-color: #86efac; }
.audience-card.no { background: #fef2f2; border-color: #fecaca; }
.audience-card h3 {
  font-size: 1.15rem; font-weight: 800; margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.audience-list { list-style: none; }
.audience-list li {
  padding: 8px 0; color: var(--color-text-muted); font-size: 0.95rem;
  padding-left: 28px; position: relative;
}
.audience-list.yes li::before { content: '✓'; position: absolute; left: 0; color: var(--color-accent); font-weight: 800; }
.audience-list.no li::before { content: '✕'; position: absolute; left: 0; color: var(--color-danger); font-weight: 800; }

/* SECURITY */
.security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.security-item {
  background: white; border-radius: 16px; padding: 28px;
  border: 1px solid var(--color-border); text-align: center;
}
.security-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--color-primary-light); display: flex;
  align-items: center; justify-content: center;
  margin: 0 auto 16px; font-size: 1.25rem;
}
.security-item h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; }
.security-item p { color: var(--color-text-muted); font-size: 0.85rem; line-height: 1.6; }

/* PRICING */
.pricing-card {
  max-width: 560px; margin: 0 auto;
  background: white; border-radius: 24px; padding: 48px;
  border: 2px solid var(--color-primary);
  text-align: center; position: relative;
  box-shadow: 0 20px 48px rgba(37,99,235,0.1);
}
.pricing-badge {
  position: absolute; top: -16px; left: 50%; transform: translateX(-50%);
  background: var(--color-primary); color: white;
  padding: 8px 24px; border-radius: 100px;
  font-size: 0.8rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.05em;
}
.pricing-price { font-size: 4rem; font-weight: 900; color: var(--color-primary); margin: 24px 0 8px; }
.pricing-desc { color: var(--color-text-muted); margin-bottom: 32px; line-height: 1.7; }
.pricing-list { list-style: none; text-align: left; margin-bottom: 32px; }
.pricing-list li {
  padding: 10px 0; padding-left: 28px; position: relative;
  color: var(--color-text-muted); font-size: 0.9rem;
  border-bottom: 1px solid #f1f5f9;
}
.pricing-list li::before { content: '•'; position: absolute; left: 8px; color: var(--color-primary); font-weight: 800; }
.pricing-contact { font-size: 0.9rem; color: var(--color-text-muted); }
.pricing-contact a { color: var(--color-primary); font-weight: 700; text-decoration: none; }
.pricing-contact a:hover { text-decoration: underline; }

/* REGISTRATION */
.reg-wrapper {
  background: linear-gradient(135deg, var(--color-surface-dark) 0%, #1e3a5f 100%);
  border-radius: 28px; padding: 64px; color: white;
}
.reg-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.reg-steps h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 32px; }
.step {
  display: flex; gap: 16px; margin-bottom: 28px;
}
.step-num {
  width: 36px; height: 36px; min-width: 36px;
  background: rgba(255,255,255,0.15); border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.85rem;
}
.step-text h4 { font-weight: 700; margin-bottom: 4px; }
.step-text p { font-size: 0.85rem; color: rgba(255,255,255,0.65); line-height: 1.6; }

.reg-form { background: white; border-radius: 20px; padding: 36px; color: var(--color-text); }
.reg-form h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 24px; text-align: center; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block; font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--color-text-muted); margin-bottom: 6px;
}
.form-group input, .form-group select {
  width: 100%; padding: 12px 16px; border: 2px solid var(--color-border);
  border-radius: 12px; font-size: 0.95rem; font-family: inherit;
  transition: border-color 0.2s; outline: none;
}
.form-group input:focus, .form-group select:focus { border-color: var(--color-primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-check { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 12px; }
.form-check input[type="checkbox"] { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--color-primary); }
.form-check label { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; text-transform: none; letter-spacing: 0; }
.btn-submit {
  width: 100%; padding: 16px; background: var(--color-primary);
  color: white; border: none; border-radius: 14px;
  font-size: 1rem; font-weight: 700; cursor: pointer;
  transition: background 0.2s; margin-top: 8px;
}
.btn-submit:hover { background: var(--color-primary-dark); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.form-success {
  text-align: center; padding: 40px 20px;
}
.form-success .check { font-size: 3rem; margin-bottom: 16px; }
.form-success h4 { font-size: 1.15rem; font-weight: 800; margin-bottom: 8px; color: var(--color-accent-dark); }
.form-success p { color: var(--color-text-muted); font-size: 0.9rem; }
.form-error { background: #fef2f2; color: var(--color-danger); padding: 12px; border-radius: 10px; font-size: 0.85rem; margin-bottom: 16px; text-align: center; font-weight: 600; }

/* FOOTER */
.footer {
  background: var(--color-surface-dark); color: rgba(255,255,255,0.7);
  padding: 64px 24px 32px;
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand h3 { color: white; font-size: 1.25rem; font-weight: 800; margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer-col h4 { color: white; font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px; }
.footer-col a { display: block; color: rgba(255,255,255,0.6); text-decoration: none; font-size: 0.9rem; padding: 4px 0; transition: color 0.2s; }
.footer-col a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; }

/* MOBILE */
@media (max-width: 768px) {
  .nav-links { display: none; position: fixed; top: 72px; left: 0; right: 0; background: white; flex-direction: column; padding: 24px; gap: 16px; border-bottom: 1px solid var(--color-border); box-shadow: 0 8px 24px rgba(0,0,0,0.1); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero { padding: 120px 20px 60px; }
  .problem-grid, .features-grid, .audience-grid, .security-grid { grid-template-columns: 1fr; }
  .reg-grid { grid-template-columns: 1fr; gap: 40px; }
  .reg-wrapper { padding: 32px 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.6s ease-out forwards; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }