/* BOQQU Premium Dark Design System - Static CSS */

/* ============================================
   CSS Variables & Design Tokens
   ============================================ */
:root {
  /* Colors */
  --background: hsl(220, 20%, 4%);
  --foreground: hsl(0, 0%, 98%);
  --card: hsl(220, 18%, 8%);
  --card-foreground: hsl(0, 0%, 98%);
  --primary: hsl(217, 91%, 60%);
  --primary-foreground: hsl(0, 0%, 100%);
  --secondary: hsl(220, 16%, 12%);
  --secondary-foreground: hsl(0, 0%, 98%);
  --muted: hsl(220, 14%, 16%);
  --muted-foreground: hsl(220, 10%, 55%);
  --accent: hsl(217, 91%, 60%);
  --border: hsl(220, 14%, 16%);
  --ring: hsl(217, 91%, 60%);
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Spacing */
  --radius: 0.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* ============================================
   Layout Utilities
   ============================================ */
.container-narrow {
  max-width: 1024px;
  margin: 0 auto;
  padding: 0 1rem;
}

.container-wide {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container-narrow,
  .container-wide {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container-narrow,
  .container-wide {
    padding: 0 2rem;
  }
}

.section-padding {
  padding: 5rem 0;
}

@media (min-width: 768px) {
  .section-padding {
    padding: 8rem 0;
  }
}

/* ============================================
   Typography
   ============================================ */
.heading-xl {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.heading-lg {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.heading-md {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.body-lg {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--muted-foreground);
  line-height: 1.7;
}

.body-md {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--muted-foreground);
  line-height: 1.7;
}

.text-gradient {
  background: linear-gradient(to right, var(--primary), hsl(217, 91%, 70%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.text-muted {
  color: var(--muted-foreground);
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(10, 10, 12, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

@media (min-width: 768px) {
  .navbar-inner {
    height: 5rem;
  }
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-foreground);
  transition: color 0.2s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--primary);
  transition: width 0.3s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--foreground);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  display: none;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 768px) {
  .nav-cta {
    display: flex;
  }
}

.mobile-menu-btn {
  display: block;
  padding: 0.5rem;
  background: none;
  border: none;
  color: var(--foreground);
  cursor: pointer;
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu {
  display: none;
  background: var(--background);
  border-bottom: 1px solid var(--border);
  padding: 1rem;
}

.mobile-menu.open {
  display: block;
}

@media (min-width: 768px) {
  .mobile-menu {
    display: none !important;
  }
}

.mobile-nav-link {
  display: block;
  padding: 0.75rem 0;
  font-weight: 500;
  color: var(--muted-foreground);
}

.mobile-nav-link:hover {
  color: var(--foreground);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-primary {
  background: var(--primary);
  color: var(--primary-foreground);
}

.btn-primary:hover {
  background: hsl(217, 91%, 55%);
}

.btn-outline {
  background: transparent;
  color: var(--foreground);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  background: var(--secondary);
  border-color: var(--muted-foreground);
}

.btn-ghost {
  background: transparent;
  color: var(--muted-foreground);
}

.btn-ghost:hover {
  background: var(--secondary);
  color: var(--foreground);
}

.glow-box {
  box-shadow: 0 0 40px -10px hsla(217, 91%, 60%, 0.3);
}

.glow-box:hover {
  box-shadow: 0 0 50px -10px hsla(217, 91%, 60%, 0.5);
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
}

.glass-card {
  background: rgba(20, 20, 24, 0.5);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 0.75rem;
}

.glass-card-hover {
  background: rgba(20, 20, 24, 0.5);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 0.75rem;
  transition: all 0.3s;
}

.glass-card-hover:hover {
  background: rgba(20, 20, 24, 0.7);
  border-color: hsla(217, 91%, 60%, 0.3);
  box-shadow: 0 0 40px -10px hsla(217, 91%, 60%, 0.3);
}

/* ============================================
   Section Heading
   ============================================ */
.section-heading {
  text-align: center;
  max-width: 768px;
  margin: 0 auto;
}

.section-heading .eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-heading .title {
  margin-bottom: 1rem;
}

.section-heading .description {
  font-size: 1.125rem;
  color: var(--muted-foreground);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 5rem;
}

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

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 10, 12, 0.92) 0%,
    rgba(10, 10, 12, 0.85) 50%,
    rgba(10, 10, 12, 0.8) 100%
  );
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, transparent, hsla(217, 91%, 60%, 0.05));
  z-index: 1;
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: hsla(217, 91%, 60%, 0.15);
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.6;
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: hsla(217, 91%, 60%, 0.1);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.hero-title {
  margin-bottom: 1.5rem;
}

.hero-description {
  max-width: 640px;
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
  }
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 5rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-stat {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hero-stat-icon {
  width: 20px;
  height: 20px;
  color: var(--primary);
}

.hero-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
}

.hero-stat-label {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* ============================================
   Services Overview
   ============================================ */
.bg-card-30 {
  background: hsla(220, 18%, 8%, 0.3);
}

.services-grid {
  display: grid;
  gap: 2rem;
  margin-top: 4rem;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  padding: 2rem;
}

.service-icon {
  width: 3rem;
  height: 3rem;
  background: hsla(217, 91%, 60%, 0.1);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--primary);
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--muted-foreground);
}

/* ============================================
   Why BOQQU
   ============================================ */
.why-grid {
  display: grid;
  gap: 4rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .why-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.features-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-card {
  padding: 1.5rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: hsla(217, 91%, 60%, 0.3);
}

.feature-card svg {
  width: 2rem;
  height: 2rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* ============================================
   Traffic & Verticals
   ============================================ */
.bg-gradient-card {
  background: linear-gradient(180deg, hsla(220, 18%, 8%, 0.3), var(--background));
}

.verticals-grid {
  display: grid;
  gap: 3rem;
  margin-top: 4rem;
}

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

.verticals-grid h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tag {
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.tag-secondary {
  background: var(--secondary);
}

.tag-primary {
  background: hsla(217, 91%, 60%, 0.1);
  color: var(--primary);
}

/* ============================================
   How It Works
   ============================================ */
.steps-grid {
  display: grid;
  gap: 2rem;
  margin-top: 4rem;
}

@media (min-width: 768px) {
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step {
  position: relative;
}

.step-number {
  font-size: 4rem;
  font-weight: 700;
  background: linear-gradient(to right, var(--primary), hsl(217, 91%, 70%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.2;
}

.step h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 1rem;
  margin-bottom: 0.75rem;
}

.step p {
  color: var(--muted-foreground);
}

/* ============================================
   Testimonials
   ============================================ */
.testimonials-grid {
  display: grid;
  gap: 2rem;
  margin-top: 4rem;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  transition: border-color 0.3s;
}

.testimonial-card:hover {
  border-color: hsla(217, 91%, 60%, 0.5);
}

.metric-badge {
  position: absolute;
  top: -1rem;
  left: 2rem;
  background: var(--primary);
  color: var(--primary-foreground);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
}

.quote-icon {
  width: 2.5rem;
  height: 2.5rem;
  color: hsla(217, 91%, 60%, 0.2);
  margin-bottom: 1.5rem;
  margin-top: 0.5rem;
}

.testimonial-card blockquote {
  color: var(--muted-foreground);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.testimonial-author {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.testimonial-author .name {
  font-weight: 600;
}

.testimonial-author .role {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
  position: relative;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, hsla(217, 91%, 60%, 0.1), var(--background), hsla(217, 91%, 60%, 0.05));
}

.cta-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 600px;
  height: 600px;
  background: hsla(217, 91%, 60%, 0.2);
  border-radius: 50%;
  filter: blur(150px);
  opacity: 0.3;
}

.cta-content {
  position: relative;
  z-index: 10;
  text-align: center;
}

.cta-content .heading-lg {
  margin-bottom: 1.5rem;
}

.cta-content .body-lg {
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
}

@media (min-width: 640px) {
  .cta-buttons {
    flex-direction: row;
  }
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 4rem 0;
}

.footer-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
  line-height: 1.7;
}

.footer-social {
  margin-top: 1.25rem;
  display: flex;
  gap: 0.75rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 0.5rem;
  background: hsla(217, 91%, 60%, 0.1);
  color: var(--primary);
  transition: all 0.2s;
}

.social-link:hover {
  background: var(--primary);
  color: var(--background);
  transform: translateY(-2px);
}

.footer-links h4 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--foreground);
}

.footer-bottom {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

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

/* ============================================
   Forms
   ============================================ */
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
}

.form-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.form-card > p {
  color: var(--muted-foreground);
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--foreground);
  font-size: 0.875rem;
  transition: border-color 0.2s;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px hsla(217, 91%, 60%, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--muted-foreground);
}

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

.form-row {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   Stats
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  background: linear-gradient(to right, var(--primary), hsl(217, 91%, 70%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* ============================================
   Benefits Grid
   ============================================ */
.benefits-grid {
  display: grid;
  gap: 2rem;
  margin-top: 4rem;
}

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

@media (min-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.benefit-card {
  text-align: center;
}

.benefit-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: hsla(217, 91%, 60%, 0.1);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.benefit-icon svg {
  width: 1.75rem;
  height: 1.75rem;
  color: var(--primary);
}

.benefit-card h3 {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.benefit-card p {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* ============================================
   Check List
   ============================================ */
.check-list {
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.check-list svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.check-list span {
  color: var(--muted-foreground);
}

/* ============================================
   Page Headers
   ============================================ */
.page-header {
  padding-top: 8rem;
}

/* ============================================
   Contact Info
   ============================================ */
.contact-info {
  margin-top: 3rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-icon {
  width: 3rem;
  height: 3rem;
  background: hsla(217, 91%, 60%, 0.1);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary);
}

.contact-item h3 {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.contact-item p {
  color: var(--muted-foreground);
}

.response-box {
  margin-top: 3rem;
  padding: 1.5rem;
  background: rgba(20, 20, 24, 0.5);
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.response-box h4 {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.response-box p {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* ============================================
   Legal Pages
   ============================================ */
.legal-content {
  margin-top: 3rem;
}

.legal-content section {
  margin-bottom: 2rem;
}

.legal-content h2 {
  margin-bottom: 1rem;
}

.legal-content p {
  color: var(--muted-foreground);
  line-height: 1.8;
}

/* ============================================
   Services Detail
   ============================================ */
.service-detail {
  display: grid;
  gap: 3rem;
  align-items: center;
  margin-bottom: 6rem;
}

@media (min-width: 1024px) {
  .service-detail {
    grid-template-columns: 1fr 1fr;
  }
}

.service-detail:nth-child(even) .service-detail-content {
  order: 2;
}

.service-detail:nth-child(even) .service-detail-features {
  order: 1;
}

.service-detail-icon {
  width: 4rem;
  height: 4rem;
  background: hsla(217, 91%, 60%, 0.1);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-detail-icon svg {
  width: 2rem;
  height: 2rem;
  color: var(--primary);
}

.service-detail-features {
  padding: 2rem;
}

.service-detail-features h4 {
  font-weight: 600;
  margin-bottom: 1.5rem;
}

/* ============================================
   Utilities
   ============================================ */
.text-center {
  text-align: center;
}

.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.pt-0 { padding-top: 0; }

.grid-2 {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   Icons (SVG inline)
   ============================================ */
.icon {
  width: 1em;
  height: 1em;
  display: inline-block;
  vertical-align: middle;
}

/* Responsive visibility */
.hide-mobile {
  display: none;
}

@media (min-width: 768px) {
  .hide-mobile {
    display: block;
  }
  
  .hide-desktop {
    display: none;
  }
}