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

:root {
    --color-bg: #111111;
    --color-bg-secondary: #181818;
    --color-primary: #ff6600;
    --color-accent: #ff9900;
    --color-text: #f5f5f5;
    --color-neon: #ff6600cc;
    --color-btn: #222;
    --color-btn-hover: #ff6600;
    --shadow-neon: 0 0 12px var(--color-neon), 0 0 24px var(--color-primary);
}

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: 'Orbitron', Arial, sans-serif;
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 3vw;
    background: var(--color-bg-secondary);
    box-shadow: 0 2px 12px #000a;
}
.logo {
    height: 48px;
    filter: drop-shadow(0 0 8px var(--color-primary));
}
nav a {
    color: var(--color-text);
    text-decoration: none;
    margin: 0 1.2rem;
    font-weight: 500;
    transition: color 0.2s;
}
nav a.btn-primary {
    background: var(--color-primary);
    color: #fff;
    padding: 0.6em 1.4em;
    border-radius: 2em;
    box-shadow: var(--shadow-neon);
    font-weight: 700;
    margin-left: 1.5em;
    transition: background 0.2s, color 0.2s;
}
nav a.btn-primary:hover {
    background: #fff;
    color: var(--color-primary);
}

.landing {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
}
.hero {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 3vw 5vw 2vw 5vw;
    min-height: 60vh;
}
.hero-content {
    flex: 1 1 350px;
    max-width: 500px;
}
.hero-content h1 {
    font-size: 2.8rem;
    margin-bottom: 0.5em;
    color: var(--color-primary);
    text-shadow: var(--shadow-neon);
}
.hero-content .highlight {
    color: var(--color-accent);
    text-shadow: 0 0 8px var(--color-accent);
}
.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 1.5em;
    color: #ccc;
}
.slogan {
    color: var(--color-primary);
    font-weight: 700;
    text-shadow: 0 0 8px var(--color-neon);
}
.cta-buttons {
    display: flex;
    gap: 1.2em;
}
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 0.7em 2em;
    border-radius: 2em;
    font-size: 1.1em;
    font-weight: 700;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-neon);
    background: var(--color-primary);
    color: #fff;
    text-decoration: none;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}
.btn-secondary {
    background: var(--color-btn);
    color: var(--color-primary);
    box-shadow: 0 0 8px var(--color-primary);
}
.btn-primary:hover, .btn-secondary:hover {
    background: #fff;
    color: var(--color-primary);
    box-shadow: 0 0 16px var(--color-accent);
}
.hero-graphic {
    flex: 1 1 350px;
    min-width: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 320px;
}
#ladder-animation {
    width: 320px;
    height: 320px;
    background: #181818;
    border-radius: 1.5em;
    box-shadow: 0 0 32px var(--color-primary) inset, 0 0 24px #000a;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.intro-section {
    background: var(--color-bg-secondary);
    margin: 2em 0 0 0;
    padding: 2em 5vw;
    border-radius: 1.5em;
    box-shadow: 0 0 24px #000a;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 2em;
}
.intro-section h2 {
    color: var(--color-accent);
    font-size: 2rem;
    margin-bottom: 0.5em;
    text-shadow: 0 0 8px var(--color-accent);
}
.intro-graphic {
    flex: 1 1 300px;
    min-width: 300px;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}
#plc-scanner-diagram {
    width: 260px;
    height: 180px;
    background: #222;
    border-radius: 1em;
    box-shadow: 0 0 16px var(--color-accent) inset;
    display: flex;
    align-items: center;
    justify-content: center;
}
.intro-text {
    flex: 2 1 300px;
    color: #bbb;
    font-size: 1.1rem;
    margin-top: 1em;
}

.main-footer {
    background: #181818;
    color: #888;
    text-align: center;
    padding: 1.2em 0;
    font-size: 1em;
    letter-spacing: 0.05em;
    box-shadow: 0 -2px 12px #000a;
    margin-top: 2em;
}

/* DASHBOARD */
.dashboard {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2em 2vw 3em 2vw;
    display: flex;
    flex-direction: column;
    gap: 2.5em;
}
.dashboard-welcome {
    text-align: center;
    margin-bottom: 1em;
}
.dashboard-welcome h1 {
    font-size: 2.2rem;
    color: var(--color-primary);
    text-shadow: var(--shadow-neon);
}
.dashboard-welcome p {
    color: #bbb;
    font-size: 1.2rem;
}
.dashboard-progress {
    background: var(--color-bg-secondary);
    border-radius: 1.2em;
    box-shadow: 0 0 16px #000a;
    padding: 2em 2vw;
    margin-bottom: 1em;
}
.progress-bar {
    width: 100%;
    height: 22px;
    background: #222;
    border-radius: 1em;
    overflow: hidden;
    box-shadow: 0 0 8px var(--color-primary) inset;
    margin-bottom: 0.7em;
}
.progress-bar-inner {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    box-shadow: 0 0 16px var(--color-neon);
    border-radius: 1em 0 0 1em;
    transition: width 0.5s;
}
.progress-label {
    color: var(--color-accent);
    font-weight: 700;
    margin-bottom: 1em;
}
.dashboard-achievements {
    display: flex;
    gap: 2em;
    margin-top: 1em;
}
.achievement {
    background: #181818;
    border-radius: 1em;
    padding: 1em 1.5em;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 0 8px var(--color-accent) inset;
    min-width: 120px;
}
.achievement-icon {
    font-size: 2.2em;
    margin-bottom: 0.3em;
    text-shadow: 0 0 8px var(--color-accent);
}
.achievement-label {
    color: var(--color-accent);
    font-weight: 600;
    font-size: 1.1em;
}
.dashboard-modules {
    display: flex;
    flex-wrap: wrap;
    gap: 2em;
    justify-content: center;
    margin-bottom: 1em;
}
.module-card {
    background: var(--color-bg-secondary);
    border-radius: 1.2em;
    box-shadow: 0 0 16px #000a;
    padding: 2em 1.5em 1.5em 1.5em;
    min-width: 240px;
    max-width: 270px;
    flex: 1 1 240px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
}
.module-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 0 32px var(--color-primary);
    z-index: 2;
}
.module-icon {
    font-size: 2.5em;
    margin-bottom: 0.7em;
    color: var(--color-primary);
    text-shadow: 0 0 12px var(--color-neon);
}
.module-card h3 {
    color: var(--color-accent);
    margin-bottom: 0.5em;
    font-size: 1.3em;
    text-align: center;
}
.module-card p {
    color: #bbb;
    font-size: 1em;
    text-align: center;
    margin-bottom: 1.2em;
}
.module-card .btn-primary {
    width: 100%;
    margin: 0 auto;
}
.dashboard-summary {
    background: var(--color-bg-secondary);
    border-radius: 1.2em;
    box-shadow: 0 0 16px #000a;
    padding: 2em 2vw;
    margin-bottom: 1em;
}
.dashboard-summary h2 {
    color: var(--color-accent);
    margin-bottom: 0.7em;
    text-shadow: 0 0 8px var(--color-accent);
}
.dashboard-summary ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.dashboard-summary li {
    color: #ccc;
    font-size: 1.1em;
    margin-bottom: 0.5em;
    padding-left: 1.2em;
    position: relative;
}
.dashboard-summary li:before {
    content: '•';
    color: var(--color-primary);
    position: absolute;
    left: 0;
    font-size: 1.2em;
    top: 0.1em;
}
@media (max-width: 900px) {
    .dashboard-modules {
        flex-direction: column;
        align-items: stretch;
    }
    .dashboard {
        padding: 1em 0.5em 2em 0.5em;
    }
}

@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        align-items: stretch;
        padding: 2vw 2vw 1vw 2vw;
    }
    .hero-content, .hero-graphic {
        max-width: 100%;
        min-width: 0;
    }
    .intro-section {
        flex-direction: column;
        gap: 1em;
        padding: 1.2em 2vw;
    }
}

/* LECCIONES INTERACTIVAS */
.lessons-list {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2em 2vw 3em 2vw;
    display: flex;
    flex-direction: column;
    gap: 2.5em;
}
.lessons-header {
    text-align: center;
    margin-bottom: 1em;
}
.lessons-header h1 {
    font-size: 2.2rem;
    color: var(--color-primary);
    text-shadow: var(--shadow-neon);
}
.lessons-header p {
    color: #bbb;
    font-size: 1.2rem;
}
.lessons-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 2em;
    justify-content: center;
}
.lesson-card {
    background: var(--color-bg-secondary);
    border-radius: 1.2em;
    box-shadow: 0 0 16px #000a;
    padding: 2em 1.5em 1.5em 1.5em;
    min-width: 220px;
    max-width: 250px;
    flex: 1 1 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
}
.lesson-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 0 32px var(--color-primary);
    z-index: 2;
}
.lesson-icon {
    font-size: 2.2em;
    margin-bottom: 0.7em;
    color: var(--color-primary);
    text-shadow: 0 0 12px var(--color-neon);
}
.lesson-card h3 {
    color: var(--color-accent);
    margin-bottom: 0.5em;
    font-size: 1.2em;
    text-align: center;
}
.lesson-card p {
    color: #bbb;
    font-size: 1em;
    text-align: center;
    margin-bottom: 1.2em;
}
.lesson-card .btn-primary {
    width: 100%;
    margin: 0 auto;
}
@media (max-width: 900px) {
    .lessons-grid {
        flex-direction: column;
        align-items: stretch;
    }
    .lessons-list {
        padding: 1em 0.5em 2em 0.5em;
    }
}