@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap');

:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --secondary-color: #1abc9c;
    --background-color: #f4f6f8;
    --text-color: #555;
    --heading-color: #2c3e50;
    --container-bg: #ffffff;
    --border-color: #bdc3c7;
    --shadow-color: rgba(52, 152, 219, 0.2);
    --error-color: #e74c3c;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    line-height: 1.6;
}

/* --- Stile per la schermata di Login --- */
#login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(44, 62, 80, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    transition: opacity 0.3s ease;
}

.login-box {
    background-color: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    text-align: center;
    width: 90%;
    max-width: 400px;
}

.login-box h2 {
    color: var(--heading-color);
    margin-top: 0;
}

.login-box p {
    color: #7f8c8d;
    margin-bottom: 20px;
}

#password-input {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    box-sizing: border-box;
}

#login-button {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

#login-button:hover {
    background-color: var(--primary-dark);
}

#error-message {
    color: var(--error-color);
    margin-top: 15px;
    font-size: 0.9em;
}
/* ------------------------------------------- */


.container {
    max-width: 850px;
    margin: 25px auto;
    padding: 30px;
    background-color: var(--container-bg);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

header {
    text-align: center;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 20px;
    margin-bottom: 30px;
}

.header-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
}

.header-icon {
    width: 36px;
    height: 36px;
    color: var(--primary-color);
}

header h1 {
    color: var(--heading-color);
    font-weight: 700;
    font-size: 2.2em;
    margin: 0;
}

header p {
    font-size: 1.1em;
    color: #7f8c8d;
}

fieldset {
    border: 1px solid #e0e6ed;
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 25px;
    background-color: #fbfdff;
}

legend {
    font-weight: 600;
    font-size: 1.2em;
    color: var(--primary-dark);
    padding: 0 10px;
}

.form-group {
    position: relative;
    margin-bottom: 20px;
}

.form-group::before {
    content: '';
    position: absolute;
    top: -2px; left: -2px;
    width: calc(100% + 4px);
    height: calc(100% + 4px);
    background: linear-gradient(60deg, var(--secondary-color), var(--primary-color), var(--primary-dark), var(--secondary-color));
    background-size: 300% 300%;
    border-radius: 8px;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    animation: animated-border 4s linear infinite;
    pointer-events: none;
}

@keyframes animated-border {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.form-group:focus-within::before {
    opacity: 1;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.95em;
    position: relative;
    z-index: 2;
    padding: 0 2px;
    width: fit-content;
    color: var(--heading-color);
    transition: color 0.3s ease;
}

.form-group:focus-within label {
    color: white;
}

/* --- MODIFICA: Aree Touch più grandi e font leggibile --- */
input[type="text"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 14px 15px; /* Aumentato padding verticale */
    min-height: 50px; /* Altezza minima per un tocco facile */
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px; /* Garantisce leggibilità su mobile */
    font-family: 'Poppins', sans-serif;
    box-sizing: border-box;
    transition: border-color 0.3s, box-shadow 0.3s;
    background-color: var(--container-bg);
    position: relative;
    z-index: 1;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.06);
}

textarea {
    min-height: 140px; /* Altezza minima più generosa per le textarea */
}
/* -------------------------------------------------------- */


.form-group:focus-within input,
.form-group:focus-within select,
.form-group:focus-within textarea {
    border-color: transparent;
    outline: none;
}

input[readonly] {
    background-color: #f0f2f5;
    cursor: not-allowed;
    color: #777;
    font-style: italic;
}

.form-group:focus-within input[readonly] {
    border-color: var(--border-color);
}
.form-group input[readonly]:focus {
    border-color: var(--border-color);
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.06);
}
.form-group:has(input[readonly]:focus)::before {
    opacity: 0;
}
.form-group:has(input[readonly]:focus) label {
    color: var(--heading-color);
}


.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.autocomplete-container { z-index: 10; }
#autocompleteResults {
    position: absolute; top: 100%; left: 0; right: 0;
    background: white; border: 1px solid var(--border-color); border-top: none;
    border-radius: 0 0 6px 6px; z-index: 1000; max-height: 200px;
    overflow-y: auto; box-shadow: 0 5px 10px rgba(0,0,0,0.1);
}
.autocomplete-item { padding: 10px; cursor: pointer; }
.autocomplete-item:hover, .autocomplete-item.active { background-color: #e9ecef; }
.autocomplete-item strong { color: var(--primary-color); }

.interlocutore-group {
    display: grid; grid-template-columns: 1fr 1fr auto;
    gap: 15px; align-items: end; margin-bottom: 15px;
    padding: 15px; border: 1px dashed var(--border-color); border-radius: 6px;
}
#addInterlocutore { margin-top: 10px; }
.remove-interlocutore-btn {
    background: var(--error-color); color: white; border: none; border-radius: 6px;
    padding: 12px; cursor: pointer; height: 50px; width: 50px; /* Altezza allineata agli input */
    display: flex; align-items: center; justify-content: center;
    transition: background-color 0.2s;
}
.remove-interlocutore-btn:hover { background: #c0392b; }
.remove-interlocutore-btn svg { width: 20px; height: 20px; }

.reminder-section { background: #f8f9fa; padding: 15px; border-radius: 6px; }
.reminder-toggle { display: flex; align-items: center; gap: 10px; }
.switch { position: relative; display: inline-block; width: 50px; height: 28px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .4s; border-radius: 28px; }
.slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 4px; bottom: 4px; background-color: white; transition: .4s; border-radius: 50%; }
input:checked + .slider { background-color: var(--secondary-color); }
input:checked + .slider:before { transform: translateX(22px); }
#reminderDateContainer { margin-top: 15px; }
.hidden { display: none; }

.form-actions { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 15px; margin-top: 30px; }
button {
    padding: 14px 22px; font-size: 16px; font-weight: 600; font-family: 'Poppins', sans-serif;
    border-radius: 8px; border: none; cursor: pointer; transition: all 0.3s ease;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 50px; /* Altezza minima anche per i pulsanti */
}
#generatePdfBtn, #generateIcsBtn { flex-grow: 1; }
#generatePdfBtn {
    background-image: linear-gradient(45deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white; box-shadow: 0 4px 15px var(--shadow-color);
}
#generatePdfBtn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px var(--shadow-color); }
#generateIcsBtn { background-color: #ecf0f1; color: var(--heading-color); border: 1px solid var(--border-color); }
#generateIcsBtn:hover { background-color: #dfe6e9; }
#resetButton { background-color: #95a5a6; color: white; flex-grow: 0; min-width: 150px; }
#resetButton:hover { background-color: #7f8c8d; }
.button-secondary { background-color: #ecf0f1; color: var(--heading-color); border: 1px solid var(--border-color); }
.button-secondary:hover { background-color: #dfe6e9; }
.button-secondary svg, #generateIcsBtn svg, #generatePdfBtn svg { width: 20px; height: 20px; }

/* --- MODIFICA: Ottimizzazioni specifiche per mobile --- */
@media (max-width: 700px) {
    body {
        font-size: 16px; /* Base font size per leggibilità */
        -webkit-text-size-adjust: 100%; /* Previene zoom testo su iOS */
    }
    .container { margin: 0; padding: 20px 15px; border-radius: 0; box-shadow: none; }
    
    header h1 {
        font-size: 1.9em; /* Titolo leggermente più piccolo */
    }

    fieldset {
        padding: 20px 15px;
    }

    .form-group {
        margin-bottom: 24px; /* Più spazio tra gli elementi */
    }

    .interlocutore-group { grid-template-columns: 1fr; }
    
    .form-actions { flex-direction: column-reverse; }
    
    button { width: 100%; }
}