/* ============================================
   GlowForges - Premium Email Identity Site
   Dual Theme: Light & Dark with Color Variations
   ============================================ */

:root {
  /* Light Theme - Warm Cream & Indigo */
  --bg-primary: #faf8f5;
  --bg-secondary: #f0ebe3;
  --bg-card: #ffffff;
  --text-primary: #1a1d2e;
  --text-secondary: #4a4f6b;
  --text-muted: #7a7f99;
  --accent-primary: #5b4cf7;
  --accent-secondary: #7c6cf9;
  --accent-glow: #a78bfa;
  --accent-warm: #f59e0b;
  --accent-success: #10b981;
  --border-color: #e5e2dc;
  --gradient-hero: linear-gradient(135deg, #faf8f5 0%, #f0ebe3 50%, #e8e4dc 100%);
  --gradient-dark: linear-gradient(135deg, #1a1d2e 0%, #2d2a47 50%, #1f2235 100%);
  --gradient-accent: linear-gradient(135deg, #5b4cf7 0%, #7c6cf9 50%, #a78bfa 100%);
  --shadow-card: 0 4px 24px rgba(26, 29, 46, 0.06);
  --shadow-elevated: 0 12px 40px rgba(26, 29, 46, 0.1);
  --glow-accent: 0 0 60px rgba(91, 76, 247, 0.15);
  --logo-fill: #1a1d2e;
  --logo-accent: #5b4cf7;
}

[data-theme="dark"] {
  --bg-primary: #0f1117;
  --bg-secondary: #1a1d2e;
  --bg-card: #23263a;
  --text-primary: #f4f3f8;
  --text-secondary: #c4c1d4;
  --text-muted: #8b87a3;
  --accent-primary: #8b7cfd;
  --accent-secondary: #a78bfa;
  --accent-glow: #c4b5fd;
  --accent-warm: #fbbf24;
  --accent-success: #34d399;
  --border-color: #2d2a47;
  --gradient-hero: linear-gradient(135deg, #0f1117 0%, #1a1d2e 50%, #23263a 100%);
  --gradient-dark: linear-gradient(135deg, #0a0c10 0%, #1a1d2e 100%);
  --gradient-accent: linear-gradient(135deg, #7c6cf9 0%, #a78bfa 50%, #c4b5fd 100%);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-elevated: 0 12px 40px rgba(0, 0, 0, 0.4);
  --glow-accent: 0 0 60px rgba(139, 124, 253, 0.25);
  --logo-fill: #f4f3f8;
  --logo-accent: #a78bfa;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; }

p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s, opacity 0.2s;
}

a:hover {
  opacity: 0.85;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: background 0.3s, box-shadow 0.3s;
}

.nav.scrolled {
  background: rgba(var(--nav-bg, 250, 248, 245), 0.9);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
}

[data-theme="dark"] .nav.scrolled {
  --nav-bg: 15, 17, 23;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.375rem;
  letter-spacing: -0.03em;
}

.logo svg,
.logo .logo-svg {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-text { color: var(--logo-fill); }
.logo-text .accent { color: var(--logo-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-primary);
}

.theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-primary);
  transition: all 0.2s;
}

.theme-toggle:hover {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
}

/* Mobile Menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all 0.3s;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(91, 76, 247, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(245, 158, 11, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 8rem 0 4rem;
}

.hero h1 {
  max-width: 800px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  max-width: 600px;
  margin: 0 auto 2.5rem;
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary,
.nav-links a.btn-primary,
a.btn-primary {
  background: var(--gradient-accent);
  color: #ffffff !important;
  box-shadow: var(--shadow-card), var(--glow-accent);
}

.btn-primary:hover,
.nav-links a.btn-primary:hover {
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated), 0 0 80px rgba(91, 76, 247, 0.3);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--accent-primary);
}

.btn-ghost:hover {
  background: rgba(91, 76, 247, 0.1);
}

/* Section Styling */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

/* Brand Statement */
.brand-statement {
  background: var(--bg-secondary);
}

.brand-statement .section-header p {
  font-size: 1.125rem;
}

/* Icon Grid - Differentiators */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.diff-item {
  text-align: center;
  padding: 1.5rem;
}

.diff-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  background: var(--gradient-accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
}

.diff-item h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

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

/* Use Cases */
.use-cases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

@media (max-width: 768px) {
  .use-cases {
    grid-template-columns: 1fr;
  }
}

.use-case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s;
  box-shadow: var(--shadow-card);
}

.use-case-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-elevated), var(--glow-accent);
}

.use-case-card h3 {
  margin-bottom: 0.5rem;
}

/* Dark CTA Band */
.cta-band {
  background: var(--gradient-dark);
  color: white;
  text-align: center;
  padding: 4rem 0;
}

.cta-band h2 {
  color: white;
  margin-bottom: 1rem;
}

.cta-band p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 2rem;
}

.cta-band .btn-primary {
  background: white;
  color: var(--text-primary);
}

.cta-band .btn-primary:hover {
  background: var(--accent-glow);
  color: var(--text-primary);
}

/* Service Cards */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s;
  box-shadow: var(--shadow-card);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevated);
  border-color: var(--accent-primary);
}

.service-card .icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.service-card h3 {
  margin-bottom: 0.5rem;
}

/* Service Flow */
.flow-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 3rem;
  padding: 2rem;
}

.flow-step {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.flow-step:not(:last-child)::after {
  content: '→';
  margin-left: 0.5rem;
  color: var(--accent-primary);
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  margin-top: 2rem;
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

.about-block h3 {
  margin-bottom: 0.75rem;
  color: var(--accent-primary);
}

.about-block ul {
  list-style: none;
  margin-top: 1rem;
}

.about-block li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-secondary);
}

.about-block li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-success);
  font-weight: 700;
}

/* Pricing */
.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.toggle-switch {
  position: relative;
  width: 56px;
  height: 28px;
  background: var(--border-color);
  border-radius: 14px;
  cursor: pointer;
  transition: background 0.3s;
}

.toggle-switch.active {
  background: var(--accent-primary);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 4px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s;
}

.toggle-switch.active::after {
  transform: translateX(28px);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

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

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem;
  transition: all 0.3s;
  position: relative;
  box-shadow: var(--shadow-card);
}

.pricing-card.featured {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-elevated), var(--glow-accent);
  transform: scale(1.02);
}

.pricing-card.featured::before {
  content: 'Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-accent);
  color: white;
  padding: 0.25rem 1rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.pricing-card h3 {
  margin-bottom: 0.5rem;
}

.pricing-card .price {
  font-size: 2rem;
  font-weight: 700;
  margin: 1rem 0;
  color: var(--accent-primary);
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-muted);
}

.pricing-card ul {
  list-style: none;
  margin: 1.5rem 0;
}

.pricing-card li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.pricing-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-success);
  font-weight: 700;
}

.pricing-card .btn {
  width: 100%;
  margin-top: 1rem;
}

/* Billing Transparency */
.billing-note {
  text-align: center;
  margin-top: 3rem;
  padding: 2rem;
  background: var(--bg-secondary);
  border-radius: 16px;
}

.billing-note p {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

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

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--text-primary);
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(91, 76, 247, 0.15);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* Multi-step Form */
.step-form {
  max-width: 640px;
  margin: 0 auto;
}

.step-indicator {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.step-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border-color);
  transition: all 0.3s;
}

.step-dot.active {
  background: var(--accent-primary);
  transform: scale(1.2);
}

.step-dot.completed {
  background: var(--accent-success);
}

.step-panel {
  display: none;
}

.step-panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.form-actions {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-top: 2rem;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.checkbox-group input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--accent-primary);
}

/* Legal Pages */
.legal-page {
  padding: 8rem 0 4rem;
  max-width: 720px;
  margin: 0 auto;
}

.legal-page h1 {
  margin-bottom: 1rem;
}

.legal-page h2 {
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.legal-page p, .legal-page li {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.legal-page ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-page a {
  color: var(--accent-primary);
  text-decoration: underline;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}

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

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand p {
  font-size: 0.9375rem;
  margin-top: 1rem;
  max-width: 280px;
}

.footer h4 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer ul {
  list-style: none;
}

.footer li {
  margin-bottom: 0.5rem;
}

.footer a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.footer a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Page Header (for inner pages) */
.page-hero {
  padding: 8rem 0 4rem;
  text-align: center;
  background: var(--gradient-hero);
}

.page-hero h1 {
  margin-bottom: 0.75rem;
}

.page-hero p {
  max-width: 600px;
  margin: 0 auto;
}

/* Contact Form Layout */
.contact-form-wrapper {
  max-width: 560px;
  margin: 0 auto;
}

.support-note {
  text-align: center;
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: 12px;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

/* Responsive Nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--bg-card);
    flex-direction: column;
    padding: 5rem 2rem 2rem;
    box-shadow: -4px 0 24px rgba(0,0,0,0.1);
    transition: right 0.3s;
  }

  .nav-links.open {
    right: 0;
  }

  .theme-toggle {
    margin-left: auto;
  }
}