:root {
    --bg-dark: #09090b;
    --bg-card: #18181b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #06b6d4; /* LumaX Cyan */
    --accent-glow: rgba(6, 182, 212, 0.4);
    --border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: rgba(9, 9, 11, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: 0.3s;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.nav-links a:hover {
    color: var(--text-main);
    text-shadow: 0 0 10px var(--accent-glow);
}

.page-content {
    flex: 1;
    padding: 3rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.title-section {
    text-align: center;
    margin-bottom: 3rem;
}

.title-section h1 {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.title-section p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Grid de Tarjetas (Cards) */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 1.5rem;
    padding: 2rem;
    text-align: center;
    text-decoration: none;
    color: var(--text-main);
    transition: 0.3s cubic-bezier(0.19, 1, 0.22, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.tool-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5), 0 0 20px var(--accent-glow);
}

.tool-icon {
    font-size: 3rem;
    color: var(--accent);
    background: rgba(6, 182, 212, 0.1);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    margin-bottom: 0.5rem;
}

.tool-card h3 {
    font-size: 1.25rem;
    font-weight: 800;
}

.tool-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Formularios y Botones en Generadores */
.generator-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 1.5rem;
    padding: 3rem;
    max-width: 600px;
    margin: 0 auto;
}

.g-input {
    width: 100%;
    padding: 1rem;
    background: #000;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: #fff;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    transition: 0.3s;
}

.g-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

.g-btn {
    width: 100%;
    padding: 1rem;
    background: var(--accent);
    color: #000;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 800;
    text-transform: uppercase;
    cursor: pointer;
    transition: 0.3s;
}

.g-btn:hover {
    transform: scale(1.02);
    box-shadow: 0 5px 15px var(--accent-glow);
}