/* Web Tools Hub - Homepage styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Outfit:wght@400;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* Theme Variables */
:root {
    --bg-color: #0f172a; /* Slate 900 */
    --card-bg: #1e293b; /* Slate 800 */
    --text-primary: #f1f5f9; /* Slate 100 */
    --text-secondary: #94a3b8; /* Slate 400 */
    --accent: #7dd3fc; /* Sky 300 - lightblue */
    --accent-hover: #38bdf8; /* Sky 400 */
    --border: #334155; /* Slate 700 */
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme */
[data-theme="light"] {
    --bg-color: #f8fafc; /* Slate 50 */
    --card-bg: #ffffff;
    --text-primary: #0f172a; /* Slate 900 */
    --text-secondary: #475569; /* Slate 600 */
    --accent: #0284c7; /* Sky 600 */
    --accent-hover: #0369a1; /* Sky 700 */
    --border: #e2e8f0; /* Slate 200 */
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
}

/* Auto-detect system preference */
@media (prefers-color-scheme: light) {
    :root:not([data-theme]) {
        --bg-color: #f8fafc;
        --card-bg: #ffffff;
        --text-primary: #0f172a;
        --text-secondary: #475569;
        --accent: #0284c7;
        --accent-hover: #0369a1;
        --border: #e2e8f0;
        --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
    }
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 4rem 2rem;
    line-height: 1.5;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
}

h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(to right, #7dd3fc, #38bdf8);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

[data-theme="light"] h1 {
    background: linear-gradient(to right, #0284c7, #0369a1);
    background-clip: text;
    -webkit-background-clip: text;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme]) h1 {
        background: linear-gradient(to right, #0284c7, #0369a1);
        background-clip: text;
        -webkit-background-clip: text;
    }
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1100px;
}

.tool-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2.5rem;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, transparent, var(--accent), transparent);
    transform: scaleX(0);
    transition: var(--transition);
}

.tool-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] .tool-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
}

.tool-card:hover::before {
    transform: scaleX(1);
}

.tool-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(125, 211, 252, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

[data-theme="light"] .tool-icon {
    background-color: rgba(3, 105, 161, 0.1);
}

.tool-card:hover .tool-icon {
    background-color: var(--accent);
    color: var(--bg-color);
    transform: rotate(-5deg) scale(1.1);
}

h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.card-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-footer svg {
    transition: var(--transition);
}

.tool-card:hover .card-footer svg {
    transform: translateX(4px);
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.5rem;
    cursor: pointer;
    z-index: 1000;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: scale(1.05);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

@media (max-width: 640px) {
    body {
        padding: 2rem 1rem;
    }
    h1 {
        font-size: 2.5rem;
    }
    .tools-grid {
        grid-template-columns: 1fr;
    }
    .theme-toggle {
        top: 0.5rem;
        right: 0.5rem;
    }
}