/* public/css/style.css */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 0 20px;
}

header {
    background: #333;
    color: #fff;
    padding: 1rem 0;
    border-bottom: #0779e4 3px solid;
}

header a {
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 16px;
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header .nav-logo a {
    font-size: 24px;
    font-weight: bold;
}

header .nav-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
}

header .nav-links li {
    padding: 0 15px;
}

header .nav-links li a:hover {
    color: #0779e4;
}

.language-selector select {
    padding: 5px;
    background-color: #444;
    color: white;
    border: 1px solid #555;
    border-radius: 3px;
}

main {
    flex-grow: 1;
    padding: 20px;
    max-width: 1200px;
    width: 100%;
    margin: 20px auto;
    box-sizing: border-box;
}

footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    margin-top: auto;
}

/* Form Styles */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-sizing: border-box;
}

.btn {
    display: inline-block;
    background: #0779e4;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

.btn:hover {
    background: #0056b3;
}

.btn-secondary {
    background: #6c757d;
}
.btn-secondary:hover {
    background: #5a6268;
}

.alert {
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
}
.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}
.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.flash-message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    text-align: center;
}
.flash-message.info {
    background-color: #e7f3fe;
    border: 1px solid #d0e3f0;
    color: #31708f;
}
.flash-message.success {
    background-color: #dff0d8;
    border: 1px solid #d6e9c6;
    color: #3c763d;
}
.flash-message.error {
    background-color: #f2dede;
    border: 1px solid #ebccd1;
    color: #a94442;
}


/* Calendar specific styles (placeholder, to be expanded with JS interaction) */
.calendar-container {
    background: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr); /* 7 days a week */
    gap: 5px;
    border: 1px solid #eee;
}
.calendar-day-header, .calendar-slot {
    padding: 10px;
    text-align: center;
    border: 1px solid #f0f0f0;
    min-height: 80px; /* For dropping */
}
.calendar-day-header {
    background-color: #f9f9f9;
    font-weight: bold;
}
.calendar-slot.available {
    background-color: #e6ffe6;
    cursor: pointer;
}
.calendar-slot.available:hover {
    background-color: #ccffcc;
}
.calendar-slot.booked {
    background-color: #ffe6e6;
    cursor: not-allowed;
}
.calendar-slot.past {
    background-color: #efefef;
    color: #aaa;
}
.calendar-slot.tutor-slot { /* Slot creato dal tutor */
    background-color: #d6eaff;
    border: 1px dashed #007bff;
    position: relative; /* Per l'icona di resize/delete */
}

/* Flexbox/Grid examples for UI components */
.tutor-card-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.tutor-card {
    background: #fff;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
}
.tutor-card h3 { margin-top: 0; }
.tutor-card .subjects { font-style: italic; color: #555; margin-bottom: 10px;}
.tutor-card .actions { margin-top: auto; } /* Pushes button to bottom */