* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: #121213;
    color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
    padding: 20px 10px;
    min-height: 100vh;
}

/* --- Modali Overlay --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 15px;
}

.modal-overlay.hidden { 
    display: none !important; 
}

.modal-content {
    background: #1a1a1b;
    border: 1px solid #3a3a3c;
    border-radius: 16px;
    padding: 28px 24px;
    max-width: 440px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.5);
    animation: modalPop 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes modalPop {
    0% { transform: scale(0.85); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.modal-content h2 {
    margin-top: 0;
    color: #ffffff;
    font-size: 1.4rem;
    letter-spacing: 0.5px;
}

.modal-subtitle {
    color: #a0a0a0;
    font-size: 0.9rem;
    margin-top: -6px;
    margin-bottom: 20px;
}

.rules-list {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.rules-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: #272729;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.88rem;
    line-height: 1.45;
    color: #e2e8f0;
}

.rule-icon {
    font-size: 1.1rem;
    line-height: 1;
}

.green-text {
    color: #538d4e;
}

.modal-btn {
    width: 100%;
    padding: 12px;
    font-size: 0.95rem;
    font-weight: bold;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s;
}

.action-btn {
    background: #538d4e;
    color: #ffffff;
}

.action-btn:hover {
    background: #467742;
}

.secondary-btn {
    background: #3a3a3c;
    color: #ffffff;
}

.secondary-btn:hover {
    background: #4a4a4d;
}

/* --- Header & Controlli --- */
header {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 480px;
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    position: relative;
    margin-bottom: 12px;
    width: 100%;
}

header h1 {
    font-size: 2rem;
    margin: 0;
    letter-spacing: 1px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.icon-btn {
    background: #1a1a1b;
    border: 1px solid #3a3a3c;
    border-radius: 8px;
    font-size: 1.2rem;
    padding: 6px 10px;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.icon-btn:hover {
    transform: scale(1.08);
    background-color: #272729;
}

.type-selector, .mode-selector {
    margin-bottom: 10px;
    text-align: center;
}

.type-btn, .mode-btn {
    background: #272729;
    color: #a0a0a0;
    border: 1px solid #3a3a3c;
    padding: 8px 16px;
    margin: 0 4px;
    cursor: pointer;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.type-btn.active {
    background: #b59f3b;
    color: #ffffff;
    border-color: #b59f3b;
}

.mode-btn.active {
    background: #538d4e;
    color: #ffffff;
    border-color: #538d4e;
}

/* --- Tabellone di Gioco --- */
.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 480px;
}

.info-board {
    background: #1a1a1b;
    border: 1px solid #272729;
    padding: 12px 24px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
    width: 100%;
    display: flex;
    justify-content: space-around;
}

.info-board p {
    margin: 0;
    font-size: 0.9rem;
    color: #a0a0a0;
}

.info-board strong, .info-board span {
    color: #ffffff;
    font-size: 1rem;
}

.chain-board {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
    width: 100%;
}

.word-row {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.letter-box {
    width: 52px;
    height: 52px;
    border: 2px solid #3a3a3c;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: bold;
    text-transform: uppercase;
    border-radius: 6px;
    background-color: #121213;
    color: #ffffff;
}

.letter-box.correct {
    background-color: #538d4e;
    border-color: #538d4e;
}

.letter-box.start {
    border-color: #b59f3b;
}

.letter-box.target {
    border-color: #538d4e;
    background-color: #538d4e;
}

.letter-box.solution {
    border-color: #2563eb;
    background-color: #1e3a8a;
    color: #93c5fd;
}

.letter-box.pop {
    animation: popIn 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275) backwards;
}

@keyframes popIn {
    0% { transform: scale(0.4); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

/* --- Area Input e Azioni --- */
.input-area {
    display: flex;
    gap: 10px;
    justify-content: center;
    width: 100%;
}

input[type="text"] {
    padding: 12px;
    font-size: 1.2rem;
    font-weight: bold;
    text-transform: uppercase;
    text-align: center;
    width: 140px;
    border-radius: 8px;
    border: 2px solid #3a3a3c;
    background: #1a1a1b;
    color: #ffffff;
    outline: none;
    transition: border-color 0.2s;
}

input[type="text"]:focus {
    border-color: #538d4e;
}

#submit-btn {
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: bold;
    background: #538d4e;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

#submit-btn:hover {
    background: #467742;
}

.action-controls {
    display: flex;
    gap: 12px;
    margin-top: 15px;
    justify-content: center;
    width: 100%;
}

.surrender-btn {
    padding: 10px 18px;
    font-size: 0.85rem;
    font-weight: bold;
    background: #272729;
    color: #ef4444;
    border: 1px solid #ef4444;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.surrender-btn:hover {
    background: #ef4444;
    color: #ffffff;
}

.surrender-btn.hidden {
    display: none !important;
}

.next-btn {
    padding: 10px 18px;
    font-size: 0.85rem;
    font-weight: bold;
    background: #b59f3b;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.next-btn:hover {
    background: #988531;
}

.next-btn.hidden { 
    display: none !important; 
}

.message-area {
    margin-top: 15px;
    font-weight: 600;
    min-height: 24px;
    text-align: center;
    font-size: 0.95rem;
    color: #d7dede;
}

/* --- Statistiche --- */
.stats-container {
    display: flex;
    justify-content: space-around;
    margin: 20px 0;
    background: #272729;
    padding: 14px;
    border-radius: 10px;
}

.stat-box {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-box span {
    font-size: 1.6rem;
    font-weight: bold;
    color: #ffffff;
}

.stat-box small {
    font-size: 0.72rem;
    color: #a0a0a0;
    text-transform: uppercase;
    margin-top: 2px;
}

.modal-content h3 {
    font-size: 0.82rem;
    margin-top: 22px;
    margin-bottom: 12px;
    color: #b59f3b;
    letter-spacing: 0.8px;
    text-transform: uppercase;
}

.distribution-container {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 24px;
}

.dist-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.8rem;
}

.dist-label {
    width: 95px;
    text-align: right;
    font-weight: 600;
    color: #a0a0a0;
}

.dist-bar-container {
    flex-grow: 1;
    background: #272729;
    border-radius: 4px;
    overflow: hidden;
}

.dist-bar {
    background: #3a3a3c;
    color: #ffffff;
    font-weight: bold;
    padding: 3px 8px;
    text-align: right;
    min-width: 22px;
    border-radius: 4px;
    font-size: 0.78rem;
}

.dist-bar.perfect-bar {
    background: #538d4e;
}