/* css/landing.css */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f8fafc; /* Gris clar fluid com la resta de l'app */
    color: #0f172a;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.landing-wrapper {
    max-width: 1100px;
    width: 100%;
}

/* --- Capçalera --- */
.landing-header {
    text-align: center;
    margin-bottom: 50px;
}

.landing-header h1 {
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 12px;
    font-weight: 800;
}

.landing-header p {
    color: #64748b;
    font-size: 1.1rem;
}

/* --- Graella de Targetes --- */
.landing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.landing-card {
    background: white;
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    border: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s, box-shadow 0.2s;
}

.landing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.card-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.landing-card h2 {
    font-size: 1.5rem;
    color: #1e293b;
    margin-bottom: 15px;
}

.landing-card p {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 30px;
    flex-grow: 1; /* Estira el text perquè els botons quedin alineats */
}

/* --- Botons Dinàmics --- */
.landing-btn {
    display: block;
    width: 100%;
    padding: 14px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1rem;
    transition: background-color 0.2s, transform 0.1s;
}

.landing-btn:active {
    transform: scale(0.98);
}

/* Colors de botons per perfils */
.btn-alumno {
    background-color: #2563eb; /* Blau corporatiu d'alumnes */
    color: white;
}
.btn-alumno:hover { background-color: #1d4ed8; }

.btn-profesor {
    background-color: #059669; /* Verd esmeralda per al panell actiu */
    color: white;
}
.btn-profesor:hover { background-color: #047857; }

.btn-projector {
    background-color: #475569; /* Gris projector neutre */
    color: white;
}
.btn-projector:hover { background-color: #334155; }

/* --- Footer --- */
.landing-footer {
    text-align: center;
    color: #94a3b8;
    font-size: 0.85rem;
    border-top: 1px solid #e2e8f0;
    padding-top: 25px;
}

/* Responsive */
@media (max-width: 640px) {
    .landing-header h1 { font-size: 2rem; }
    .landing-grid { gap: 20px; }
}