/**
 * Společné styly pro všechny stránky ChainBreak
 * Design inspirovaný Adiktio.cz
 */

/* CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Root proměnné - barevná paleta Adiktio.cz */
:root {
    /* Primární barvy */
    --color-primary: #1c264a;
    --color-secondary: #f7931e;
    --color-accent: #0074db;

    /* Neutrální barvy */
    --color-white: #ffffff;
    --color-gray-light: #f2f2f2;
    --color-gray-medium: #eeeeee;
    --color-gray: #666666;
    --color-gray-dark: #444444;
    --color-text: #333333;
    --color-black: #000000;

    /* Stavové barvy */
    --color-success: #28a745;
    --color-error: #dc3545;
    --color-warning: #ffc107;
    --color-info: #17a2b8;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 10px 40px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Typografie */
body {
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 32px;
}

h2 {
    font-size: 24px;
}

h3 {
    font-size: 20px;
}

h4 {
    font-size: 18px;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-gray);
    line-height: 1.8;
}

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

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

/* Zprávy (success/error) */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-lg);
    font-size: 15px;
    line-height: 1.5;
    border: 1px solid transparent;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-color: #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border-color: #f5c6cb;
}

/* Tlačítka */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all var(--transition-fast);
    font-family: inherit;
    line-height: 1.5;
}

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

.btn:active {
    transform: translateY(0);
}

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

.btn-primary:hover {
    background-color: #e68a1a;
    color: var(--color-white);
}

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

.btn-secondary:hover {
    background-color: #2a3558;
    color: var(--color-white);
}

/* Utility classes */
.text-center {
    text-align: center;
}