/* Import Component Styles */
@import './components/header.css';
@import './components/footer.css';
@import './components/lang-switcher.css';
@import './components/tool-card.css';

/* Import Layout Styles */
@import './layouts/home.css';
@import './layouts/tool.css';

/* CSS Reset and Normalization */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* CSS Variables */
:root {
  /* Color System */
  --color-primary: #3498db;
  --color-primary-dark: #2980b9;
  --color-primary-light: #5dade2;
  --color-secondary: #2c3e50;
  --color-secondary-dark: #1a252f;
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --color-danger: #e74c3c;
  --color-info: #3498db;
  
  --color-text: #333333;
  --color-text-light: #7f8c8d;
  --color-text-dark: #2c3e50;
  --color-bg: #ffffff;
  --color-bg-light: #f8f9fa;
  --color-bg-dark: #ecf0f1;
  --color-border: #dddddd;
  --color-border-light: #e8e8e8;
  
  /* Typography System */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-mono: 'Courier New', Courier, monospace;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 30px;
  --font-size-4xl: 36px;
  --line-height-tight: 1.2;
  --line-height-base: 1.6;
  --line-height-relaxed: 1.8;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing System */
  --spacing-xs: 5px;
  --spacing-sm: 10px;
  --spacing-md: 15px;
  --spacing-lg: 20px;
  --spacing-xl: 30px;
  --spacing-2xl: 40px;
  --spacing-3xl: 60px;
  
  /* Border Radius */
  --border-radius-sm: 4px;
  --border-radius-md: 6px;
  --border-radius-lg: 8px;
  --border-radius-xl: 12px;
  --border-radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 6px 15px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 10px 25px rgba(0, 0, 0, 0.2);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* Container */
  --container-max-width: 1200px;
  --container-padding: var(--spacing-lg);
}

/* Base Styles */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

main {
  flex: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-md);
}

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);
}

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

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

a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Lists */
ul, ol {
  list-style: none;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Buttons */
button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}

button:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Form Elements */
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  transition: border-color var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-light);
}

/* Utility Classes */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Responsive Typography */
@media (max-width: 768px) {
  :root {
    --font-size-4xl: 28px;
    --font-size-3xl: 24px;
    --font-size-2xl: 20px;
    --font-size-xl: 18px;
  }
}

/* Print Styles */
@media print {
  body {
    background: white;
    color: black;
  }
  
  a {
    text-decoration: underline;
  }
  
  .header,
  .footer,
  .lang-switcher {
    display: none;
  }
}

/* MD5 Decrypt Iframe Styles */
.md5-decrypt-iframe-container {
  position: relative;
  width: 100% !important;
  min-height: 800px !important;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  background: var(--color-bg-light);
  margin-top: var(--spacing-md);
}

#md5-decrypt-iframe {
  width: 100% !important;
  height: 800px !important;
  border: none;
  display: block;
}

.iframe-fallback {
  padding: var(--spacing-2xl);
  text-align: center;
  background: #fff3cd;
  border-radius: var(--border-radius-lg);
}

.iframe-fallback p {
  color: #856404;
  margin-bottom: var(--spacing-md);
}

.iframe-fallback a {
  color: #856404;
  text-decoration: underline;
  font-weight: var(--font-weight-semibold);
}

.iframe-fallback a:hover {
  color: #533f03;
}

@media (max-width: 768px) {
  .md5-decrypt-iframe-container {
    min-height: 600px !important;
  }
  
  #md5-decrypt-iframe {
    height: 600px !important;
  }
}