:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #f8fafc;
  --bg-card-hover: #f1f5f9;

  --text-primary: #0f172a;
  --text-secondary: #52525b;

  --accent-primary: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.25);
  --accent-secondary: #8b5cf6;

  --border-color: rgba(15, 23, 42, 0.1);
  --border-hover: rgba(15, 23, 42, 0.2);

  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  --shadow-glow: 0 0 20px var(--accent-glow);
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--text-primary);
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.text-center { text-align: center; }
.hidden { display: none !important; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-content {
  display: flex;
  justify-content: center;
  padding: 1rem 0;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--text-primary);
  border: 2px solid var(--text-primary);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.9rem;
}

.brand-logo:hover {
  color: var(--text-primary);
}

.brand-mark {
  position: relative;
  display: block;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: linear-gradient(135deg, #ff7a1a, #ff4f1f);
  box-shadow: 8px -8px 0 #ff6a1f;
}

.brand-text {
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1;
}

/* Hero Section */
.hero {
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(139, 92, 246, 0.1) 40%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

.text-gradient {
  background: linear-gradient(135deg, #60a5fa, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 2.5rem;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  background: rgba(15, 23, 42, 0.04);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  border: 1px solid var(--border-color);
}

.badge svg {
  width: 16px;
  height: 16px;
  color: #10b981;
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: rgba(15, 23, 42, 0.04);
  border-color: var(--border-hover);
}

/* Sections */
.section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-color);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

/* Grid Layouts */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

/* Features Cards */
.feature-card {
  text-align: center;
  padding: 2rem;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-primary);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 1.5rem;
  border: 1px solid var(--border-color);
}

.feature-card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Plan Cards */
.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.plan-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.plan-icon {
  font-size: 1.5rem;
  background: rgba(59, 130, 246, 0.1);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.plan-content {
  flex: 1;
}

.plan-month {
  color: var(--accent-primary);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.plan-content h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.plan-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Tags */
.tags-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
}

.tag {
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid var(--border-color);
  padding: 0.4rem 1rem;
  border-radius: 2rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* About Section */
.about-content {
  display: flex;
  gap: 3rem;
  align-items: center;
  background: var(--bg-card);
  padding: 3rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
}

.about-image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-primary);
  box-shadow: var(--shadow-glow);
}

.about-text {
  flex: 1;
}

.about-text p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.about-experience {
  background: rgba(15, 23, 42, 0.04);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin-top: 1.5rem;
  border: 1px solid var(--border-color);
}

.about-experience ul {
  list-style: none;
  color: var(--text-secondary);
}

.about-experience li {
  margin-bottom: 0.5rem;
}

/* CTA Section */
.cta-section {
  text-align: center;
  padding: 6rem 0;
  background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(29, 78, 216, 0.15) 100%);
}

.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.cta-section p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* Footer */
.site-footer {
  background: var(--bg-secondary);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
}

.footer-brand .brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 7px;
  box-shadow: 6px -6px 0 #ff6a1f;
}

.footer-brand .brand-text {
  font-size: 1.75rem;
}

.footer-copy {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-secondary);
  width: 100%;
  max-width: 500px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  position: relative;
  transform: translateY(20px) scale(0.95);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.modal-overlay.active .modal-content {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-title {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.modal-desc {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.form-checkbox input {
  margin-top: 0.25rem;
}

.form-checkbox label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.modal-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.modal-actions button {
  flex: 1;
}

.success-state {
  text-align: center;
  padding: 2rem 0;
}

.success-icon {
  width: 64px;
  height: 64px;
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.success-icon svg {
  width: 32px;
  height: 32px;
}

/* Animations */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-spin {
  animation: spin 1s linear infinite;
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .hero-cta { flex-direction: column; }
  .about-content { flex-direction: column; text-align: center; }
  .footer-content { flex-direction: column; gap: 2rem; }
}