/* ============================================
   PIXELGUARD - MAIN STYLES
   Main stylesheet for global styles and layout
   ============================================ */

/* CSS Variables */
:root {
  /* Colors */
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-primary-light: #818cf8;
  --color-secondary: #8b5cf6;
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-dark: linear-gradient(135deg, #1f2937 0%, #111827 100%);

  /* Neutral Colors */
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Typography */
  --font-family:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

[data-theme="dark"] {
  --color-primary: #8b9bff;
  --color-primary-dark: #6b7bf0;
  --color-primary-light: #a6b4ff;
  --color-secondary: #c084fc;
  --color-success: #34d399;
  --color-error: #f87171;
  --color-warning: #fbbf24;

  --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #8b5cf6 100%);
  --gradient-success: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  --gradient-dark: linear-gradient(135deg, #0b1220 0%, #0a0f1a 100%);

  --color-white: #0f172a;
  --color-gray-50: #0b1220;
  --color-gray-100: #111827;
  --color-gray-200: #1f2937;
  --color-gray-300: #273449;
  --color-gray-400: #475569;
  --color-gray-500: #64748b;
  --color-gray-600: #94a3b8;
  --color-gray-700: #cbd5e1;
  --color-gray-800: #e2e8f0;
  --color-gray-900: #f8fafc;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 30px -6px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 24px 40px -10px rgba(0, 0, 0, 0.45);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background: var(--color-gray-50);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

[data-theme="dark"] body {
  color: var(--color-gray-800);
  background: var(--color-gray-50);
}

/* Main Content Layout */
.main-content {
  flex: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-lg);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gray-900);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-600);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* Footer */
.main-footer {
  background: var(--gradient-dark);
  color: var(--color-gray-300);
  padding: var(--spacing-2xl) var(--spacing-lg);
  margin-top: auto;
}

[data-theme="dark"] .main-footer {
  color: var(--color-gray-800);
  border-top: 1px solid var(--color-gray-300);
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
}

.footer-text {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

[data-theme="dark"] .footer-text {
  color: var(--color-gray-900);
}

.footer-subtext {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
}

[data-theme="dark"] .footer-subtext {
  color: var(--color-gray-700);
}

/* Flash Messages */
.flash-messages-container {
  position: fixed;
  top: 80px;
  right: var(--spacing-lg);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: 400px;
}

.flash-message {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  background: var(--color-white);
  border-left: 4px solid;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.flash-success {
  border-left-color: var(--color-success);
}

.flash-error {
  border-left-color: var(--color-error);
}

.flash-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: var(--font-size-lg);
}

.flash-success .flash-icon {
  background: var(--color-success);
  color: var(--color-white);
}

.flash-error .flash-icon {
  background: var(--color-error);
  color: var(--color-white);
}

.flash-text {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
}

.flash-close {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--color-gray-400);
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: color var(--transition-fast);
}

.flash-close:hover {
  color: var(--color-gray-600);
}

/* Utility Classes */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Responsive Design */
@media (max-width: 768px) {
  .main-content {
    padding: var(--spacing-xl) var(--spacing-md);
  }

  h1 {
    font-size: var(--font-size-3xl);
  }
  h2 {
    font-size: var(--font-size-2xl);
  }

  .flash-messages-container {
    right: var(--spacing-md);
    left: var(--spacing-md);
    max-width: none;
  }

  .feature-card {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .feature-card * {
    text-align: center;
  }
}