/* =============================================
   RedactIA – Dark Theme CSS
   ============================================= */

/* Variables */
:root {
  --primary: #7C3AED;
  --primary-light: #9D6FF7;
  --primary-dark: #5B21B6;
  --secondary: #A78BFA;
  --accent: #F59E0B;
  --bg-dark: #0A0A0F;
  --bg-card: #12121A;
  --bg-card2: #1A1A28;
  --bg-glass: rgba(124, 58, 237, 0.08);
  --border: rgba(167, 139, 250, 0.15);
  --border-strong: rgba(167, 139, 250, 0.3);
  --text-primary: #F8F8FF;
  --text-secondary: #A0A0C0;
  --text-muted: #6060A0;
  --gradient-main: linear-gradient(135deg, #7C3AED 0%, #A855F7 50%, #EC4899 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(124,58,237,0.15) 0%, rgba(168,85,247,0.05) 100%);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --shadow: 0 4px 24px rgba(124, 58, 237, 0.15);
  --shadow-lg: 0 8px 48px rgba(124, 58, 237, 0.25);
  --transition: 0.25s ease;
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Sora', sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

p { color: var(--text-secondary); }

a { color: var(--secondary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-light); }

img { max-width: 100%; height: auto; display: block; }

ul { list-style: none; }

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section { padding: var(--space-2xl) 0; }
.section-sm { padding: var(--space-xl) 0; }

/* Reveal on scroll */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.6);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--secondary);
  border: 1.5px solid var(--border-strong);
}
.btn-outline:hover {
  background: var(--bg-glass);
  border-color: var(--primary-light);
  color: var(--primary-light);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.55rem 1.2rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 1.1rem 2.4rem;
  font-size: 1.05rem;
}

/* =============================================
   NAVIGATION
   ============================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: all var(--transition);
}

.site-header.scrolled {
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.7rem 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-icon {
  font-size: 1.4rem;
  color: var(--primary-light);
  filter: drop-shadow(0 0 8px var(--primary));
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.logo-accent { color: var(--primary-light); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition);
  text-decoration: none;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-md);
    border-bottom: 1px solid var(--border);
    gap: 0.5rem;
  }
  .nav-links.open { display: flex; }
  .nav-link { width: 100%; padding: 0.75rem 1rem; }
}

/* =============================================
   HERO
   ============================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 8rem 0 4rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.08;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(124,58,237,0.3) 0%, transparent 70%);
  z-index: 1;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float 8s ease-in-out infinite;
}

.hero-orb-1 {
  width: 500px; height: 500px;
  background: rgba(124, 58, 237, 0.25);
  top: -100px; right: -100px;
}

.hero-orb-2 {
  width: 300px; height: 300px;
  background: rgba(236, 72, 153, 0.15);
  bottom: 100px; left: -50px;
  animation-delay: -4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(124, 58, 237, 0.2);
  border: 1px solid rgba(124, 58, 237, 0.4);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero h1 {
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.hero h1 .gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p.lead {
  font-size: 1.2rem;
  max-width: 620px;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat .stat-value {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.hero-stat .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* =============================================
   SECTION HEADERS
   ============================================= */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary-light);
  background: rgba(124,58,237,0.1);
  border: 1px solid rgba(124,58,237,0.2);
  padding: 0.3rem 0.9rem;
  border-radius: 50px;
  margin-bottom: 1rem;
}

.section-header h2 { margin-bottom: 1rem; }
.section-header p { font-size: 1.1rem; }

/* =============================================
   CARDS / GLASS
   ============================================= */
.glass-card {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  backdrop-filter: blur(10px);
  transition: all var(--transition);
}

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .card-grid-3 { grid-template-columns: 1fr; }
}

.service-icon {
  width: 52px; height: 52px;
  background: var(--gradient-main);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.4rem;
}

/* =============================================
   GRADIENT TEXT
   ============================================= */
.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =============================================
   STATS BAND
   ============================================= */
.stats-band {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--space-xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

.stat-item .stat-value {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-item .stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* =============================================
   HOW IT WORKS
   ============================================= */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 30px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

@media (max-width: 900px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid::before { display: none; }
}
@media (max-width: 500px) {
  .steps-grid { grid-template-columns: 1fr; }
}

.step-card {
  text-align: center;
  padding: var(--space-md);
  position: relative;
}

.step-number {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.2rem;
  margin: 0 auto 1.25rem;
  box-shadow: 0 0 30px rgba(124,58,237,0.5);
}

/* =============================================
   TESTIMONIALS
   ============================================= */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .testimonials-grid { grid-template-columns: 1fr; }
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition);
}

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

.testimonial-stars {
  color: var(--accent);
  font-size: 1rem;
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
}

.author-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.author-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* =============================================
   PRICING
   ============================================= */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .pricing-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  transition: all var(--transition);
  position: relative;
}

.pricing-card.featured {
  background: var(--bg-card2);
  border-color: var(--primary);
  box-shadow: 0 0 40px rgba(124,58,237,0.2);
  transform: scale(1.03);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-main);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 1rem;
  border-radius: 50px;
  white-space: nowrap;
}

.pricing-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--secondary);
  margin-bottom: 1rem;
}

.pricing-price {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.pricing-price span { font-size: 1.2rem; }
.pricing-period { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.5rem; }

.pricing-features {
  margin-bottom: 2rem;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.pricing-features li:last-child { border-bottom: none; }

.pricing-features .check {
  color: var(--primary-light);
  flex-shrink: 0;
  font-size: 1rem;
}

/* =============================================
   BLOG
   ============================================= */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .blog-grid { grid-template-columns: 1fr; }
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

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

.blog-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.blog-card-body {
  padding: 1.5rem;
}

.blog-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-light);
  background: rgba(124,58,237,0.1);
  border: 1px solid rgba(124,58,237,0.2);
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
  margin-bottom: 0.75rem;
}

.blog-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.blog-card h3 a {
  color: var(--text-primary);
  text-decoration: none;
}

.blog-card h3 a:hover { color: var(--secondary); }

.blog-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* =============================================
   CONTACT FORM
   ============================================= */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 600px) {
  .form-grid { grid-template-columns: 1fr; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group.full { grid-column: 1 / -1; }

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-body);
  transition: all var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
}

.form-group textarea { min-height: 140px; resize: vertical; }

/* =============================================
   CTA SECTION
   ============================================= */
.cta-section {
  background: linear-gradient(135deg, rgba(124,58,237,0.15) 0%, rgba(168,85,247,0.08) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -60px; left: 50%;
  transform: translateX(-50%);
  width: 400px; height: 200px;
  background: radial-gradient(ellipse, rgba(124,58,237,0.3) 0%, transparent 70%);
}

.cta-section h2 { margin-bottom: 1rem; position: relative; }
.cta-section p { margin-bottom: 2rem; position: relative; font-size: 1.1rem; }

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  margin-top: var(--space-2xl);
}

.footer-top { padding: var(--space-xl) 0; }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
}

.footer-tagline {
  margin: 1rem 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.75rem;
  padding: 0.3rem 0.7rem;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 50px;
  color: var(--text-secondary);
}

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }

.footer-col ul li a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.footer-contact { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--secondary); }

/* =============================================
   SPLIT SECTION
   ============================================= */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.split-section.reverse { direction: rtl; }
.split-section.reverse > * { direction: ltr; }

@media (max-width: 768px) {
  .split-section { grid-template-columns: 1fr; gap: 2rem; }
  .split-section.reverse { direction: ltr; }
}

.split-img {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
}

.split-img img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.split-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.2) 0%, transparent 60%);
  pointer-events: none;
}

/* =============================================
   FAQ
   ============================================= */
.faq-list { max-width: 800px; margin: 0 auto; }

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  text-align: left;
  padding: 1.25rem 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color var(--transition);
}

.faq-question:hover { color: var(--secondary); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer.open { max-height: 300px; }
.faq-answer p {
  padding-bottom: 1.25rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.faq-icon { transition: transform var(--transition); flex-shrink: 0; }
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }

/* =============================================
   CALCULATOR WIDGET
   ============================================= */
.calculator-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  max-width: 750px;
  margin: 0 auto;
}

.calc-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 600px) {
  .calc-row { grid-template-columns: 1fr; }
}

.calc-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.calc-group input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
  height: 6px;
  cursor: pointer;
}

.calc-group .range-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-light);
  margin-top: 0.25rem;
}

.calc-result {
  background: var(--gradient-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  text-align: center;
  margin-top: 1rem;
}

@media (max-width: 600px) {
  .calc-result { grid-template-columns: 1fr; }
}

.calc-result-item .val {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.calc-result-item .lbl {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* =============================================
   PAGE HERO (inner pages)
   ============================================= */
.page-hero {
  padding: 9rem 0 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 100%;
  background: radial-gradient(ellipse 70% 50% at 50% 30%, rgba(124,58,237,0.2) 0%, transparent 70%);
}

.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { margin-bottom: 1rem; }
.page-hero p.lead {
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto;
}

/* =============================================
   BREADCRUMB
   ============================================= */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  justify-content: center;
}

.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb .sep { opacity: 0.4; }

/* =============================================
   FEATURE LIST
   ============================================= */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.feature-item:hover {
  border-color: var(--border-strong);
  background: rgba(124,58,237,0.1);
}

.feature-item-icon {
  width: 40px; height: 40px;
  background: var(--gradient-main);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.feature-item-text h4 { font-size: 0.95rem; margin-bottom: 0.25rem; }
.feature-item-text p { font-size: 0.85rem; color: var(--text-muted); }

/* =============================================
   ALERT / SUCCESS
   ============================================= */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6EE7B7;
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #FCA5A5;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .hero { padding: 7rem 0 3rem; }
  .hero-stats { gap: 1.5rem; }
  .section { padding: 4rem 0; }
  .space-2xl { padding: 4rem 0; }
}