@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@500;700&display=swap');

/* Design System */
:root {
    /* Color Palette - Calm, Neutral, Premium */
    --color-bg-body: #f8f9fa;
    --color-bg-card: #ffffff;
    --color-bg-dark: #2d3436;
    --color-text-primary: #2d3748;
    --color-text-secondary: #4a5568;
    --color-accent: #3182ce;
    /* Calm Blue */
    --color-accent-hover: #2b6cb0;
    --color-danger: #e53e3e;
    /* For critical warnings */
    --color-danger-bg: #fff5f5;
    --color-warning: #dd6b20;
    --color-warning-bg: #fffaf0;
    --color-success: #38a169;
    --color-success-bg: #f0fff4;
    --color-border: #e2e8f0;

    /* Typography */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

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

    /* UI Elements */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --color-bg-body: #1a202c;
    --color-bg-card: #2d3748;
    --color-bg-dark: #f7fafc;
    --color-text-primary: #e2e8f0;
    --color-text-secondary: #a0aec0;
    --color-accent: #63b3ed;
    --color-accent-hover: #4299e1;
    --color-danger: #fc8181;
    --color-danger-bg: #2c0b0e;
    --color-warning: #f6ad55;
    --color-warning-bg: #2c1a0b;
    --color-success: #68d391;
    --color-success-bg: #0e2a15;
    --color-border: #4a5568;
    --header-gradient-start: #2d3748;
    --header-gradient-end: #1a202c;
}

/* Header Gradient fix for dark mode */
header {
    background: linear-gradient(135deg, var(--header-gradient-start, #e0f7fa) 0%, var(--header-gradient-end, #ffffff) 100%);
}

/* Theme Toggle */
.theme-toggle {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

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

/* Search Tool */
.search-container {
    margin-top: 1.5rem;
    position: relative;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

#safe-search {
    width: 100%;
    padding: 1rem;
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-border);
    font-size: 1rem;
    font-family: var(--font-body);
    background-color: var(--color-bg-card);
    color: var(--color-text-primary);
    transition: var(--transition);
}

#safe-search:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.2);
}

.search-result {
    margin-top: 0.5rem;
    padding: 1rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    display: none;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

[data-theme="dark"] {
    --color-bg-body: #1a202c;
    --color-bg-card: #2d3748;
    --color-bg-dark: #f7fafc;
    --color-text-primary: #e2e8f0;
    --color-text-secondary: #a0aec0;
    --color-accent: #63b3ed;
    --color-accent-hover: #4299e1;
    --color-danger: #fc8181;
    --color-danger-bg: #2c0b0e;
    --color-warning: #f6ad55;
    --color-warning-bg: #2c1a0b;
    --color-success: #68d391;
    --color-success-bg: #0e2a15;
    --color-border: #4a5568;
    --header-gradient-start: #2d3748;
    --header-gradient-end: #1a202c;
}

/* Header Gradient fix for dark mode */
header {
    background: linear-gradient(135deg, var(--header-gradient-start, #e0f7fa) 0%, var(--header-gradient-end, #ffffff) 100%);
}

/* Theme Toggle */
.theme-toggle {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

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

/* Search Tool */
.search-container {
    margin-top: 1.5rem;
    position: relative;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

#safe-search {
    width: 100%;
    padding: 1rem;
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-border);
    font-size: 1rem;
    font-family: var(--font-body);
    background-color: var(--color-bg-card);
    color: var(--color-text-primary);
    transition: var(--transition);
}

#safe-search:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.2);
}

.search-result {
    margin-top: 0.5rem;
    padding: 1rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    display: none;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-body);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-bg-dark);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

ul,
ol {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
}

li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-secondary);
}

/* Layout */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* Header */
header {
    text-align: center;
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #e0f7fa 0%, #ffffff 100%);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

header h1 {
    font-size: 2.5rem;
    letter-spacing: -0.05em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

header p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Sections */
section {
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

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

section h2 {
    font-size: 1.5rem;
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-bg-body);
    margin-bottom: var(--spacing-md);
}

/* Warnings */
.warning-box {
    background-color: var(--color-danger-bg);
    border-left: 4px solid var(--color-danger);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
}

.warning-box h3 {
    color: var(--color-danger);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.warning-box ul {
    margin-bottom: 0;
}

.warning-box li {
    color: var(--color-text-primary);
    font-weight: 500;
}

/* Guide Steps */
.step-list {
    list-style: none;
    padding: 0;
    counter-reset: step-counter;
}

.step-list li {
    position: relative;
    padding-left: 3.5rem;
    margin-bottom: var(--spacing-md);
}

.step-list li::before {
    counter-increment: step-counter;
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--color-accent);
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 2.5rem;
    font-weight: bold;
    font-family: var(--font-heading);
    box-shadow: var(--shadow-sm);
}

.step-list h3 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--color-text-primary);
}

/* Checklists */
.checklist {
    list-style: none;
    padding: 0;
}

.checklist li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--color-bg-body);
    border-radius: var(--radius-sm);
}

.checklist li::before {
    content: "✓";
    display: inline-block;
    color: var(--color-success);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Utilities */
.highlight {
    color: var(--color-accent);
    font-weight: 600;
}

.note {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-style: italic;
    margin-top: var(--spacing-xs);
}

/* Footer */
footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }

    header {
        padding: var(--spacing-lg) 0;
    }

    header h1 {
        font-size: 2rem;
    }

    section {
        padding: var(--spacing-md);
    }
}