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

:root {
    --primary-color: #4a90e2;
    --secondary-color: #1c1c1e;
    --text-color: #ffffff;
    --text-light: #cccccc;
    --cta-bg: #4a90e2;
    --cta-hover: #357ABD;
    --border-radius: 12px;
}

/* ==============================================
Landing Page
============================================== */

body.landing {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text-color);

    /* Centrado total */
    display: flex;
    flex-direction: column;
    min-height: 100vh;

    /* Fondo arco gradiente */
    background: #0d0d0d;
    background: radial-gradient(circle, rgba(13, 13, 13, 1) 38%, rgba(0, 157, 255, 1) 44%, rgba(3, 177, 200, 1) 51%, rgba(6, 121, 136, 1) 60%, rgba(13, 13, 13, 1) 65%);
    background-size: cover;
}

.navbar {
    display: flex;
    align-items: center;
    padding: 20px 40px;
}

.navbar .logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.hero {
    margin: auto;          /* centra vertical y horizontal */
    text-align: center;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.cta-btn {
    display: inline-block;
    padding: 14px 32px;
    background-color: var(--cta-bg);
    color: var(--text-color);
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    border-radius: var(--border-radius);
}

.secondary-btn {
    background-color: #6fc1ff;
    color: #1c1c1e;
}


/* ==============================================
Manual
============================================== */
body.manual {
    font-family: 'Inter', sans-serif;
    background-color: #1c1c1e;
    color: var(--text-color);
    margin: 0;
}

body.manual .navbar {
    background-color: #252529;
    padding: 20px 40px;
}

body.manual .navbar .logo a {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
}

main {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}

.section {
    margin-bottom: 50px;
}

.section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section p, .section li {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 15px;
}

.section ul {
    margin-left: 20px;
}

.image-container {
    text-align: center;
    margin: 20px 0;
}

.image-container img {
    max-width: 100%;
    border-radius: var(--border-radius);
    border: 2px solid var(--primary-color);
}

footer {
    text-align: center;
    padding: 25px 10px;
    color: var(--text-light);
    font-size: 0.9rem;
    background-color: #252529;
    margin-top: 50px;
}