:root {
  /* Light mode colors (default) */
  --color-body-bg: #f8fafc;
  --color-card-bg: #ffffff;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-border: #e2e8f0;
  --color-shadow: rgba(0, 0, 0, 0.1);
  --color-card-shadow: rgba(0, 0, 0, 0.05);
}

/* Theme overrides for manual selection */
[data-theme="light"] {
  /* Light mode colors (forced) */
  --color-body-bg: #f8fafc;
  --color-card-bg: #ffffff;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-border: #e2e8f0;
  --color-shadow: rgba(0, 0, 0, 0.1);
  --color-card-shadow: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
  /* Dark mode colors (forced) */
  --color-body-bg: #0f172a;
  --color-card-bg: #1e293b;
  --color-text: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-primary: #60a5fa;
  --color-primary-hover: #3b82f6;
  --color-border: #334155;
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-card-shadow: rgba(0, 0, 0, 0.2);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    /* Dark mode colors (system preference only) */
    --color-body-bg: #0f172a;
    --color-card-bg: #1e293b;
    --color-text: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-primary: #60a5fa;
    --color-primary-hover: #3b82f6;
    --color-border: #334155;
    --color-shadow: rgba(0, 0, 0, 0.3);
    --color-card-shadow: rgba(0, 0, 0, 0.2);
  }
}

* {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

html {
  color: var(--color-text);
  background-color: var(--color-body-bg);
  font-size: 1rem;
  font-family: "Quicksand", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

body {
  margin: 0;
  padding: 0;
}

h1 {
  margin: 0 0 1rem 0;
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  white-space: nowrap;
}

h1::before,
h1::after {
  content: "•";
  margin: 0 12px;
  color: var(--color-primary);
}

h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
}

p {
  margin: 0 0 1rem 0;
  color: var(--color-text-secondary);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

::-moz-selection {
  background: var(--color-primary);
  color: white;
  text-shadow: none;
}

::selection {
  background: var(--color-primary);
  color: white;
  text-shadow: none;
}

.hero-card {
  margin: 1rem;
  padding: 2rem 1.5rem;
  max-width: 800px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: 0 4px 6px var(--color-card-shadow), 0 1px 3px var(--color-shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-tagline {
  font-size: 1.125rem;
  max-width: 600px;
  margin-bottom: 2.5rem;
  color: var(--color-text-secondary);
  font-weight: 400;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  width: 100%;
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.service-item {
  text-align: center;
  padding: 1rem;
}

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

.service-item p {
  font-size: 0.875rem;
  margin: 0;
}

.contact-section {
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.contact-link {
  font-size: 1.125rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--color-primary);
  border-radius: 8px;
  display: inline-block;
  transition: all 0.2s ease;
}

.contact-link:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-1px);
}

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

@media (min-width: 480px) {
  h1 {
    font-size: 2.5rem;
  }
}

@media (min-width: 768px) {
  .hero-card {
    margin: 4rem auto;
    padding: 4rem 3rem;
  }
  
  h1 {
    font-size: 3rem;
  }
  
  .hero-tagline {
    font-size: 1.25rem;
  }
}

@media (min-width: 1024px) {
  .hero-card {
    margin: 6rem auto;
  }
}

/* Theme Toggle Component */
.theme-toggle {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 22px;
  padding: 6px;
  box-shadow: 0 1px 3px var(--color-card-shadow);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: transform 0.3s ease;
}

.theme-toggle.hidden {
  transform: translateX(-50%) translateY(calc(100% + 1rem));
}

.theme-toggle-option {
  width: 36px;
  height: 36px;
  border-radius: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.2s ease;
  position: relative;
}

.theme-toggle-option:hover {
  background: var(--color-border);
}

.theme-toggle-option.active {
  background: var(--color-primary);
  color: white;
  transform: scale(1.05);
}

.theme-toggle-option.active:hover {
  background: var(--color-primary-hover);
}

/* Toggle responsive adjustments */
@media (max-width: 767px) {
  .theme-toggle {
    bottom: 0.5rem;
  }
  
  .theme-toggle.hidden {
    transform: translateX(-50%) translateY(calc(100% + 1.2rem));
  }
  
  .theme-toggle-option {
    width: 32px;
    height: 32px;
    border-radius: 16px;
    font-size: 14px;
  }
}