/**
 * Chum's Coffee - Stylesheet
 * Strictly black and white color theme with CSS variables
 * Responsive design with mobile-first approach
 */

/* CSS Variables for Theme Management */
:root {
  /* Light Mode (Default) */
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-pattern: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(0, 0, 0, 0.03) 10px,
    rgba(0, 0, 0, 0.03) 20px
  );
  --text-primary: #000000;
  --text-secondary: #333333;
  --border-color: #000000;
  --button-bg: #000000;
  --button-text: #ffffff;
  --button-hover-bg: #333333;
  --nav-bg: #ffffff;
  --nav-border: #000000;
  --input-border: #000000;
  --input-focus-border: #000000;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --bg-primary: #000000;
  --bg-secondary: #1a1a1a;
  --bg-pattern: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(255, 255, 255, 0.03) 10px,
    rgba(255, 255, 255, 0.03) 20px
  );
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --border-color: #ffffff;
  --button-bg: #ffffff;
  --button-text: #000000;
  --button-hover-bg: #e0e0e0;
  --nav-bg: #000000;
  --nav-border: #ffffff;
  --input-border: #ffffff;
  --input-focus-border: #ffffff;
  --shadow-sm: 0 2px 8px rgba(255, 255, 255, 0.1);
  --shadow-md: 0 4px 16px rgba(255, 255, 255, 0.15);
  --shadow-lg: 0 8px 32px rgba(255, 255, 255, 0.2);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg-primary);
  background-image: var(--bg-pattern);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(0, 0, 0, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 0, 0, 0.02) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

[data-theme="dark"] body::before {
  background: 
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.02) 0%, transparent 50%);
}

main {
  position: relative;
  z-index: 1;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  background-color: var(--nav-bg);
  border-bottom: 3px solid var(--nav-border);
  padding: 1.25rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.navbar::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background: repeating-linear-gradient(
    to right,
    var(--border-color),
    var(--border-color) 10px,
    transparent 10px,
    transparent 20px
  );
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: nowrap;
  position: relative;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.75rem;
  cursor: pointer;
  font-size: 1.5rem;
  border-radius: 0;
  transition: all 0.3s ease;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}

.mobile-menu-toggle:hover {
  background-color: var(--bg-secondary);
}

.mobile-menu-toggle i {
  display: block;
}

.logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

.logo:hover .logo-img {
  opacity: 0.8;
}

.logo-text {
  font-size: 1.5rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s ease;
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.5px;
  text-transform: uppercase;
  position: relative;
}

.logo-text::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--border-color);
  transition: width 0.3s ease;
}

.logo:hover .logo-text::after {
  width: 100%;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border-bottom: 2px solid transparent;
  padding: 0.5rem 0.75rem;
  position: relative;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 1px;
  display: block;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--border-color);
  transition: width 0.3s ease;
}

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

.nav-link:hover {
  opacity: 0.8;
}

/* Theme Toggle Button */
.theme-toggle {
  background: transparent;
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-size: 1.2rem;
  border-radius: 0;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  min-width: 44px;
  min-height: 44px;
}

.theme-toggle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: var(--border-color);
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.theme-toggle:hover::before {
  width: 300%;
  height: 300%;
}

.theme-toggle:hover {
  background-color: var(--bg-secondary);
}

.theme-icon {
  position: relative;
  z-index: 1;
  transition: transform 0.3s ease;
  display: inline-block;
  font-size: 1.2rem;
}

.theme-toggle:hover .theme-icon {
  transform: rotate(15deg);
}

/* Hero Section */
.hero {
  padding: 6rem 2rem;
  text-align: center;
  background-color: var(--bg-primary);
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle, var(--border-color) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.05;
  animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 3px solid var(--border-color);
  border-style: double;
  margin: 2rem;
  pointer-events: none;
}

@media (max-width: 768px) {
  .hero::after {
    margin: 1rem;
  }
}

@media (max-width: 480px) {
  .hero::after {
    margin: 0.5rem;
    border-width: 2px;
  }
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 4rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-weight: 900;
  letter-spacing: -2px;
  text-transform: uppercase;
  position: relative;
  display: block;
  padding: 0 2rem;
  line-height: 1.2;
}

.hero-title::before,
.hero-title::after {
  content: '◆';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  opacity: 0.5;
}

.hero-title::before {
  left: 0;
}

.hero-title::after {
  right: 0;
}

.hero-tagline {
  font-size: 1.75rem;
  margin-bottom: 2rem;
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 3px;
  text-transform: uppercase;
  position: relative;
  display: block;
  padding-bottom: 1rem;
  line-height: 1.4;
}

.hero-tagline::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 2px;
  background: var(--border-color);
}

.hero-description {
  font-size: 1.15rem;
  margin-bottom: 3rem;
  color: var(--text-secondary);
  line-height: 1.9;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 1rem;
  position: relative;
}

.hero-description::before,
.hero-description::after {
  content: '"';
  font-size: 3rem;
  position: absolute;
  opacity: 0.2;
  font-family: serif;
}

.hero-description::before {
  top: -1rem;
  left: -0.5rem;
}

.hero-description::after {
  bottom: -2rem;
  right: -0.5rem;
}

.hero-image {
  margin: 3rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  padding: 2rem;
}

.hero-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 200px;
  border: 2px dashed var(--border-color);
  border-radius: 50%;
  opacity: 0.3;
}

.hero-logo {
  max-width: 350px;
  width: 100%;
  height: auto;
  object-fit: contain;
  filter: invert(0);
  transition: all 0.4s ease;
  position: relative;
  z-index: 1;
  transform: scale(1);
}

.hero-logo:hover {
  transform: scale(1.05);
  filter: invert(0) drop-shadow(0 0 10px rgba(0, 0, 0, 0.3));
}

[data-theme="dark"] .hero-logo:hover {
  filter: invert(1) drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
}

/* Invert logo in dark mode to maintain visibility */
[data-theme="dark"] .hero-logo {
  filter: invert(1);
}

[data-theme="dark"] .logo-img {
  filter: invert(1);
}

/* Buttons */
.cta-button,
.submit-button {
  background-color: var(--button-bg);
  color: var(--button-text);
  padding: 1rem 3rem;
  border: 3px solid var(--border-color);
  text-decoration: none;
  display: inline-block;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 0;
  text-transform: uppercase;
  letter-spacing: 2px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  min-height: 48px;
  min-width: 120px;
  text-align: center;
  -webkit-tap-highlight-color: transparent;
}

.cta-button::before,
.submit-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--button-text);
  transition: left 0.3s ease;
  z-index: 0;
}

.cta-button span,
.submit-button span {
  position: relative;
  z-index: 1;
}

.cta-button:hover,
.submit-button:hover {
  background-color: var(--button-hover-bg);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.cta-button:hover::before,
.submit-button:hover::before {
  left: 0;
}

.cta-button:hover span,
.submit-button:hover span {
  color: var(--button-bg);
}

.submit-button {
  width: 100%;
  margin-top: 1rem;
}

/* Features Section */
.features {
  padding: 6rem 2rem;
  background-color: var(--bg-secondary);
  transition: background-color 0.3s ease;
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: repeating-linear-gradient(
    to right,
    var(--border-color),
    var(--border-color) 20px,
    transparent 20px,
    transparent 40px
  );
}

.section-title {
  text-align: center;
  font-size: 3rem;
  margin-bottom: 4rem;
  color: var(--text-primary);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  position: relative;
  display: block;
  width: 100%;
  padding-bottom: 1.5rem;
  line-height: 1.3;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 150px;
  height: 4px;
  background: var(--border-color);
  box-shadow: 0 0 10px var(--border-color);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.feature-card {
  background-color: var(--bg-primary);
  padding: 3rem 2rem;
  border: 3px solid var(--border-color);
  text-align: center;
  transition: all 0.4s ease;
  border-radius: 0;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  -webkit-tap-highlight-color: transparent;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    var(--border-color) 10px,
    var(--border-color) 11px
  );
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover::before {
  opacity: 0.05;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 2px solid var(--border-color);
  border-style: double;
  margin: 0.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover::after {
  opacity: 0.3;
}

.feature-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: var(--shadow-lg);
  border-width: 4px;
}

.feature-icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  display: inline-block;
  transition: transform 0.3s ease;
  position: relative;
  z-index: 1;
  color: var(--text-primary);
}

.feature-icon i {
  display: inline-block;
}

.feature-card:hover .feature-icon {
  transform: scale(1.2) rotate(5deg);
}

.feature-card h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  z-index: 1;
  line-height: 1.3;
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

/* Page Content */
.page-content {
  padding: 5rem 2rem;
  min-height: 60vh;
  position: relative;
}

.page-title {
  font-size: 3.5rem;
  margin-bottom: 3rem;
  color: var(--text-primary);
  text-align: center;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 3px;
  position: relative;
  padding-bottom: 2rem;
  line-height: 1.3;
}

.page-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 4px;
  background: var(--border-color);
  box-shadow: 0 0 15px var(--border-color);
}

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

.about-text {
  color: var(--text-secondary);
}

.about-text h2 {
  font-size: 2rem;
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  padding-left: 1.5rem;
}

.about-text h2::before {
  content: '▌';
  position: absolute;
  left: 0;
  color: var(--border-color);
  font-size: 1.5rem;
}

.about-text p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.lead {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-primary);
}

.values-list {
  list-style: none;
  padding-left: 0;
}

.values-list li {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  position: relative;
}

.values-list li::before {
  content: "◆";
  position: absolute;
  left: 0;
  font-size: 1rem;
  color: var(--border-color);
  font-weight: bold;
}

.about-visual {
  text-align: center;
  padding: 2rem;
}

.van-icon {
  font-size: 5rem;
  color: var(--text-primary);
}

.van-icon i {
  display: inline-block;
}

/* Contact Page */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  padding-bottom: 1rem;
}

.contact-info h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 3px;
  background: var(--border-color);
}

.contact-info p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.contact-details {
  margin-top: 2rem;
  padding: 2rem;
  background-color: var(--bg-secondary);
  border: 3px solid var(--border-color);
  border-radius: 0;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.contact-details::before {
  content: '';
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  right: 0.5rem;
  bottom: 0.5rem;
  border: 1px solid var(--border-color);
  border-style: double;
  pointer-events: none;
}

.contact-details p {
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

/* Contact Form */
.contact-form {
  background-color: var(--bg-secondary);
  padding: 3rem;
  border: 3px solid var(--border-color);
  border-radius: 0;
  position: relative;
  box-shadow: var(--shadow-md);
}

.contact-form::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  border: 1px solid var(--border-color);
  border-style: dashed;
  pointer-events: none;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--input-border);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  font-family: inherit;
  border-radius: 0;
  transition: all 0.3s ease;
  position: relative;
  -webkit-appearance: none;
  -webkit-tap-highlight-color: transparent;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-width: 3px;
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group textarea:focus {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

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

.error-message {
  display: block;
  color: var(--text-primary);
  font-size: 0.875rem;
  margin-top: 0.25rem;
  min-height: 1.25rem;
}

.success-message {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  margin-bottom: 1.5rem;
  text-align: center;
  font-weight: 600;
}

/* Error Page */
.error-content {
  text-align: center;
  padding: 4rem 2rem;
}

.error-code {
  font-size: 8rem;
  font-weight: 900;
  margin-bottom: 1rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: -5px;
  position: relative;
  display: inline-block;
  text-shadow: 
    3px 3px 0 var(--border-color),
    6px 6px 0 var(--bg-secondary);
}

.error-code::before,
.error-code::after {
  content: '◆';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2rem;
  opacity: 0.3;
}

.error-code::before {
  left: -3rem;
}

.error-code::after {
  right: -3rem;
}

.error-title {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.error-message {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

/* Footer */
.footer {
  background-color: var(--bg-secondary);
  border-top: 3px solid var(--border-color);
  padding: 3rem 2rem;
  text-align: center;
  margin-top: 6rem;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: repeating-linear-gradient(
    to right,
    var(--border-color),
    var(--border-color) 15px,
    transparent 15px,
    transparent 30px
  );
}

.footer-container p {
  margin: 0.5rem 0;
  color: var(--text-secondary);
}

/* Desktop-specific fixes */
@media (min-width: 769px) {
  .nav-wrapper {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    flex-direction: row;
    background-color: transparent;
    border: none;
    padding: 0;
    box-shadow: none;
  }
}

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

  .nav-wrapper {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--nav-bg);
    border-top: 2px solid var(--nav-border);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    z-index: 999;
  }

  .nav-wrapper.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu {
    flex-direction: column;
    gap: 0;
    width: 100%;
    margin: 0;
    padding: 0;
  }

  .nav-menu li {
    width: 100%;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-menu li:last-child {
    border-bottom: none;
  }

  .nav-link {
    width: 100%;
    padding: 1rem;
    text-align: left;
    justify-content: flex-start;
  }

  .theme-toggle {
    width: 100%;
    margin-top: 1rem;
    justify-content: center;
  }

  .logo-img {
    height: 32px;
  }

  .logo-text {
    font-size: 1.25rem;
  }

  .hero {
    padding: 3rem 1rem;
    min-height: 50vh;
  }

  .hero-logo {
    max-width: 220px;
  }

  .hero-title {
    font-size: 2rem;
    padding: 0;
  }

  .hero-title::before,
  .hero-title::after {
    display: none;
  }

  .hero-tagline {
    font-size: 1.1rem;
    letter-spacing: 1.5px;
  }

  .hero-description {
    font-size: 0.95rem;
    padding: 0;
  }

  .hero-description::before,
  .hero-description::after {
    display: none;
  }

  .hero-image {
    padding: 1rem;
    margin: 1.5rem 0;
  }

  .hero-image::before {
    width: 150px;
    height: 150px;
  }

  .section-title {
    font-size: 1.75rem;
    letter-spacing: 1px;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
  }

  .page-title {
    font-size: 1.75rem;
    letter-spacing: 1.5px;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
  }

  .features {
    padding: 2.5rem 1rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .feature-card {
    padding: 1.5rem 1.25rem;
  }

  .feature-icon {
    font-size: 2.5rem;
  }

  .feature-card h3 {
    font-size: 1.25rem;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-text h2 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
  }

  .van-icon {
    font-size: 4rem;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-info h2 {
    font-size: 1.5rem;
  }

  .contact-form {
    padding: 1.5rem 1.25rem;
  }

  .error-code {
    font-size: 5rem;
    letter-spacing: -2px;
  }

  .error-title {
    font-size: 1.5rem;
  }

  .footer {
    padding: 2rem 1rem;
    margin-top: 3rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 2rem 1rem;
  }

  .hero-title {
    font-size: 2rem;
    letter-spacing: -1px;
  }

  .hero-title::before,
  .hero-title::after {
    display: none;
  }

  .hero-tagline {
    font-size: 1rem;
    letter-spacing: 1px;
  }

  .hero-logo {
    max-width: 200px;
  }

  .page-title {
    font-size: 2rem;
    letter-spacing: 1px;
  }

  .error-code {
    font-size: 5rem;
    letter-spacing: -3px;
  }

  .error-code::before,
  .error-code::after {
    display: none;
  }

  .logo-img {
    height: 28px;
  }

  .logo-text {
    font-size: 1.1rem;
  }

  .page-content {
    padding: 2rem 1rem;
  }

  .contact-form {
    padding: 1.5rem;
  }
}