/* ============================================
   FREELANCE NEXUS — Design System Premium
   Dark Mode · Glassmorphism · Animations
   ============================================ */

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

:root {
  --bg-primary: #0a0f1e;
  --bg-secondary: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.7);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(16, 185, 129, 0.4);
  --green: #10b981;
  --green-light: #34d399;
  --green-glow: rgba(16, 185, 129, 0.25);
  --white: #f8fafc;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #475569;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Outfit', 'Inter', sans-serif;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-green: 0 0 40px rgba(16, 185, 129, 0.15);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  background: rgba(10, 15, 30, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.navbar.scrolled {
  padding: 12px 0;
  background: rgba(10, 15, 30, 0.95);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--green);
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  letter-spacing: 0.5px;
}

.nav-links a:hover { color: var(--white); }

.btn-nav-secondary {
  border: 1px solid var(--border) !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-sm) !important;
  color: var(--text-secondary) !important;
}

.btn-nav-secondary:hover {
  border-color: var(--border-hover) !important;
  color: var(--white) !important;
  background: var(--bg-card) !important;
}

.btn-nav-primary {
  background: var(--green) !important;
  color: #000 !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 700 !important;
  font-size: 13px !important;
  letter-spacing: 0.5px;
  transition: var(--transition) !important;
}

.btn-nav-primary:hover {
  background: var(--green-light) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px var(--green-glow) !important;
}

/* Mobile menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

/* Animated gradient background */
.hero::before {
  content: '';
  position: absolute;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.12) 0%, transparent 70%);
  top: -200px;
  right: -200px;
  border-radius: 50%;
  animation: pulse-glow 6s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
  border-radius: 50%;
  animation: pulse-glow 8s ease-in-out infinite reverse;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.hero-content {
  max-width: 760px;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--green);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  letter-spacing: 0.5px;
  animation: fade-up 0.6s ease forwards;
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -2px;
  color: var(--white);
  margin-bottom: 24px;
  animation: fade-up 0.7s ease 0.1s forwards;
  opacity: 0;
}

.gradient-text {
  background: linear-gradient(135deg, var(--green) 0%, #34d399 50%, #6ee7b7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 40px;
  animation: fade-up 0.7s ease 0.2s forwards;
  opacity: 0;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  animation: fade-up 0.7s ease 0.3s forwards;
  opacity: 0;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn-primary-large {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--green);
  color: #000;
  text-decoration: none;
  padding: 18px 36px;
  border-radius: var(--radius);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 1px;
  transition: var(--transition);
  box-shadow: 0 4px 30px var(--green-glow);
  white-space: nowrap;
}

.btn-primary-large::after {
  content: '→';
  transition: transform 0.3s ease;
}

.btn-primary-large:hover {
  background: var(--green-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(16, 185, 129, 0.4);
}

.btn-primary-large:hover::after { transform: translateX(4px); }

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}

.stat-item { text-align: center; }
.stat-value {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* ============================================
   SOCIAL PROOF / TESTIMONIALS
   ============================================ */
.social-proof {
  padding: 80px 0;
  position: relative;
}

.social-proof::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(16, 185, 129, 0.03) 50%, transparent 100%);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: -10px;
  right: 20px;
  font-size: 120px;
  color: rgba(16, 185, 129, 0.06);
  font-family: serif;
  line-height: 1;
}

.testimonial-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-green);
}

.stars {
  color: var(--green);
  font-size: 14px;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  font-size: 13px;
  color: var(--text-muted);
}

.testimonial-author strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ============================================
   FEATURES
   ============================================ */
.features {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.03) 0%, transparent 60%);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-green);
}

.feature-card:hover::after { opacity: 1; }

.feature-icon {
  font-size: 32px;
  margin-bottom: 20px;
  display: block;
}

.feature-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.feature-description {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   HOW IT WORKS
   ============================================ */
.how-it-works {
  padding: 100px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(16, 185, 129, 0.03) 50%, transparent 100%);
}

.steps-grid {
  display: flex;
  align-items: center;
  gap: 16px;
}

.step-card {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  position: relative;
}

.step-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-green);
}

.step-number {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 800;
  color: rgba(16, 185, 129, 0.15);
  line-height: 1;
  margin-bottom: 20px;
  transition: var(--transition);
}

.step-card:hover .step-number { color: rgba(16, 185, 129, 0.4); }

.step-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.step-description {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-arrow {
  font-size: 28px;
  color: var(--green);
  flex-shrink: 0;
  opacity: 0.6;
  animation: arrow-pulse 2s ease-in-out infinite;
}

@keyframes arrow-pulse {
  0%, 100% { transform: translateX(0); opacity: 0.6; }
  50% { transform: translateX(4px); opacity: 1; }
}

/* ============================================
   PRICING
   ============================================ */
.pricing {
  padding: 100px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
  margin-bottom: 40px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.pricing-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.pricing-card.recommended {
  border-color: var(--green);
  background: rgba(16, 185, 129, 0.05);
  box-shadow: 0 0 60px rgba(16, 185, 129, 0.12), inset 0 1px 0 rgba(255,255,255,0.05);
  transform: scale(1.02);
}

.pricing-card.recommended:hover {
  transform: scale(1.02) translateY(-4px);
  box-shadow: 0 0 80px rgba(16, 185, 129, 0.2), var(--shadow-card);
}

.recommended-badge {
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--green);
  color: #000;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 6px 20px;
  border-radius: 0 0 12px 12px;
  white-space: nowrap;
}

.pricing-header { margin-bottom: 24px; }

.plan-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.plan-description {
  font-size: 13px;
  color: var(--text-muted);
}

.plan-price {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.price-amount {
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}

.price-period {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.plan-features {
  list-style: none;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.plan-features li.disabled { opacity: 0.4; }

.check-icon {
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
  font-size: 16px;
}

.cross-icon {
  color: var(--text-muted);
  flex-shrink: 0;
  font-size: 16px;
}

.btn-plan {
  display: block;
  text-align: center;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1px;
  text-decoration: none;
  transition: var(--transition);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  background: transparent;
  cursor: pointer;
}

.btn-plan:hover {
  border-color: var(--green);
  color: var(--green);
}

.btn-plan.primary {
  background: var(--green);
  border-color: var(--green);
  color: #000;
  box-shadow: 0 4px 20px var(--green-glow);
}

.btn-plan.primary:hover {
  background: var(--green-light);
  box-shadow: 0 6px 30px rgba(16, 185, 129, 0.4);
  transform: translateY(-2px);
  color: #000;
}

.pricing-guarantee {
  text-align: center;
  padding: 20px;
  font-size: 14px;
  color: var(--text-secondary);
}

.pricing-guarantee strong { color: var(--green); }

/* ============================================
   SIGNUP / CTA SECTION
   ============================================ */
.signup {
  padding: 100px 0;
  position: relative;
}

.signup::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(16, 185, 129, 0.04) 50%, transparent 100%);
}

.signup-container {
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 80px rgba(16, 185, 129, 0.1);
}

.signup-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.signup-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.signup-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.signup-form {
  display: flex;
  max-width: 500px;
  margin: 0 auto 16px;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-hover);
  background: rgba(15, 23, 42, 0.8);
}

.signup-form input[type="email"] {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 18px 24px;
  font-size: 15px;
  color: var(--white);
  font-family: var(--font-body);
}

.signup-form input::placeholder { color: var(--text-muted); }

.btn-signup {
  background: var(--green);
  color: #000;
  border: none;
  padding: 18px 28px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  font-family: var(--font-body);
}

.btn-signup:hover {
  background: var(--green-light);
}

.signup-note {
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--green);
  margin-bottom: 16px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

.footer-col ul li a:hover { color: var(--green); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 28px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   MODAL (Success)
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 48px;
  max-width: 480px;
  width: 90%;
  text-align: center;
  transform: scale(0.9);
  transition: var(--transition);
  box-shadow: 0 0 80px rgba(16, 185, 129, 0.2);
}

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

.modal-icon {
  font-size: 56px;
  margin-bottom: 20px;
  display: block;
}

.modal h3 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}

.modal p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.btn-modal-close {
  background: var(--green);
  color: #000;
  border: none;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.btn-modal-close:hover { background: var(--green-light); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: rgba(10, 15, 30, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }

  .hero { padding: 100px 0 60px; }
  .hero-cta { flex-direction: column; align-items: flex-start; gap: 24px; }

  .testimonial-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }

  .steps-grid {
    flex-direction: column;
    align-items: stretch;
  }

  .step-arrow { transform: rotate(90deg); text-align: center; }

  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card.recommended { transform: none; }
  .pricing-card.recommended:hover { transform: translateY(-4px); }

  .signup-container { padding: 40px 24px; }
  .signup-form { flex-direction: column; border-radius: var(--radius-sm); }
  .btn-signup { border-radius: var(--radius-sm); }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col:first-child { grid-column: span 2; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 42px; }
  .features-grid, .footer-grid { grid-template-columns: 1fr; }
  .footer-col:first-child { grid-column: 1; }
}