/* 
   EXPERT WEB TOOLS - 2025 STYLE 
   Architecture: Dark Mode / Glassmorphism / Bento Grid
*/

/* --- 1. Font Definitions (Self-Hosted) --- */

/* Inter v20 */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    src: url('/fonts/inter-v20-latin-regular.woff2') format('woff2');
    font-display: swap;
}

/* Montserrat v31 */
@font-face {
    font-family: 'Montserrat';
    font-style: normal;
    font-weight: 700;
    src: url('/fonts/montserrat-v31-latin-700.woff2') format('woff2');
    font-display: swap;
}

/* Orbitron v35 */
@font-face {
    font-family: 'Orbitron';
    font-style: normal;
    font-weight: 700;
    src: url('/fonts/orbitron-v35-latin-700.woff2') format('woff2');
    font-display: swap;
}

/* Roboto Mono v31 */
@font-face {
    font-family: 'Roboto Mono';
    font-style: normal;
    font-weight: 400;
    src: url('/fonts/roboto-mono-v31-latin-regular.woff2') format('woff2');
    font-display: swap;
}

/* Lora v37 & Lato v25 included for specific tool usage, though Homepage relies on the above */
@font-face { font-family: 'Lora'; src: url('/fonts/lora-v37-latin-regular.woff2') format('woff2'); font-display: swap; }
@font-face { font-family: 'Lato'; src: url('/fonts/lato-v25-latin-regular.woff2') format('woff2'); font-display: swap; }


/* --- 2. Variables & Reset --- */
:root {
    --bg-dark: #0a0a0f;
    --card-bg: rgba(25, 25, 35, 0.6);
    --card-border: rgba(255, 255, 255, 0.08);
    --primary-accent: #3b82f6; /* Electric Blue */
    --secondary-accent: #8b5cf6; /* Violet */
    --text-main: #ffffff;
    --text-muted: #94a3b8;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-tech: 'Orbitron', sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Background Ambient Glow */
.background-glow {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.08) 0%, rgba(10, 10, 15, 0) 50%);
    z-index: -1;
    pointer-events: none;
}

/* --- 3. Header --- */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-tech);
    font-size: 1.5rem;
    letter-spacing: 1px;
    color: var(--text-main);
}

.logo span { color: var(--primary-accent); }

.main-header nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.main-header nav a:hover { color: var(--primary-accent); }

/* --- 4. Hero Section --- */
.hero {
    text-align: center;
    padding: 4rem 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero .highlight {
    background: linear-gradient(to right, var(--primary-accent), var(--secondary-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
}

/* Search Bar */
.search-container {
    position: relative;
    max-width: 500px;
    margin: 0 auto 2rem auto;
}

.search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-container input {
    width: 100%;
    padding: 16px 20px 16px 50px;
    border-radius: 50px;
    border: 1px solid var(--card-border);
    background: rgba(255, 255, 255, 0.05);
    color: white;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
    font-family: var(--font-body);
}

.search-container input:focus {
    border-color: var(--primary-accent);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
}

/* Filters */
.tags {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.tag {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.85rem;
}

.tag:hover, .tag.active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: var(--primary-accent);
}

/* --- 5. Tools Grid (Bento Style) --- */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5% 4rem 5%;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2rem;
    text-decoration: none;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    backdrop-filter: blur(10px);
}

.tool-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.icon-box {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: var(--text-main);
    transition: background 0.3s;
}

.ai-glow {
    color: var(--secondary-accent);
    background: rgba(139, 92, 246, 0.1);
}

.tool-card:hover .icon-box {
    background: var(--primary-accent);
    color: white;
}

.tool-card:hover .ai-glow {
    background: var(--secondary-accent);
}

.tool-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.tool-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Hide hidden tools */
.tool-card.hidden { display: none; }

/* --- 6. Footer --- */
footer {
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid var(--card-border);
    margin-top: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

footer a {
    color: var(--text-main);
    text-decoration: none;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .tools-grid { grid-template-columns: 1fr; }
}