/* ====================================================
   DESIGN TOKENS — tema centralizzato GGGIADI
   Prima i colori erano sparsi/duplicati in tutto il file
   (es. #667eea ripetuto >15 volte). Ora un solo punto di verità.
   ==================================================== */
:root {
    --color-primary: #667eea;
    --color-primary-dark: #5a67d8;
    --color-secondary: #764ba2;
    --color-success: #48bb78;
    --color-success-dark: #38a169;
    --color-danger: #fc8181;
    --color-danger-dark: #e53e3e;
    --color-warning: #fbd38d;

    --color-text: #2d3748;
    --color-text-muted: #718096;
    --color-text-soft: #4a5568;
    --color-border: #e2e8f0;
    --color-surface: #ffffff;
    --color-surface-alt: #f7fafc;

    --gradient-brand: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-pill: 20px;

    --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.3);
    --shadow-soft: 0 2px 10px rgba(0, 0, 0, 0.1);

    --space-xs: 5px;
    --space-sm: 10px;
    --space-md: 20px;
    --space-lg: 30px;
    --space-xl: 40px;

    --font-family: 'Montserrat', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-family);
    background: var(--gradient-brand);
    min-height: 100vh;
    padding: var(--space-md);
    color: var(--color-text);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-card);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 3px solid var(--color-border);
}

.header-title {
    font-size: 2.8em;
    font-weight: 800;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-subtitle { color: var(--color-text-muted); font-size: 1.1em; font-weight: 300; }
.header-meta { color: var(--color-text-soft); font-size: 0.95em; margin-top: 8px; font-weight: 600; }
.header-nav { margin-top: 15px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* User Section */
.user-section { background: var(--color-surface-alt); border-radius: var(--radius-md); padding: var(--space-md); margin-bottom: var(--space-lg); }
.user-info { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px; }
.user-info-content { display: flex; align-items: center; gap: 15px; flex-wrap: wrap; }
.user-icon { font-size: 2em; }
.user-name { font-weight: 600; font-size: 1.1em; }
.user-email { color: var(--color-text-muted); font-size: 0.9em; }
.user-role { padding: 4px 12px; border-radius: var(--radius-pill); font-size: 0.75em; font-weight: 600; text-transform: uppercase; }
.badge-role-admin { background: #feb2b2; color: #742a2a; }
.badge-role-referente { background: var(--color-warning); color: #744210; }
.badge-role-atleta { background: #9ae6b4; color: #22543d; }

.auth-buttons { display: flex; gap: var(--space-sm); flex-wrap: wrap; }
.auth-form { margin-top: var(--space-md); padding: var(--space-md); background: var(--color-surface); border-radius: var(--radius-md); box-shadow: var(--shadow-soft); }
.auth-form h3 { margin-bottom: 15px; color: var(--color-text-soft); }

/* Buttons */
.btn {
    padding: 10px 20px; border: none; border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 600; cursor: pointer; transition: all .2s ease;
    display: inline-flex; align-items: center; gap: 8px;
}
.btn:focus-visible { outline: 3px solid var(--color-primary); outline-offset: 2px; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: 0 5px 15px rgba(102,126,234,.3); }
.btn-secondary { background: var(--color-border); color: var(--color-text-soft); }
.btn-secondary:hover { background: #cbd5e0; }
.btn-success { background: var(--color-success); color: #fff; }
.btn-success:hover { background: var(--color-success-dark); transform: translateY(-2px); box-shadow: 0 5px 15px rgba(72,187,120,.3); }
.btn-outline { background: transparent; border: 2px solid var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover { background: var(--color-danger-dark); transform: translateY(-2px); }
.btn-verifica { background: var(--color-success); color: #fff; padding: 10px 20px; border: none; border-radius: var(--radius-sm); font-weight: 600; cursor: pointer; white-space: nowrap; transition: all .2s ease; }
.btn-verifica:hover { background: var(--color-success-dark); transform: translateY(-2px); }
.btn-verifica.verificato { background: var(--color-success); cursor: default; }
.btn-verifica.non-verificato { background: var(--color-danger); animation: shake .5s; }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-submit { font-size: 18px; padding: 15px 40px; }

/* Form */
.main-form { margin-top: var(--space-md); }
.form-section { margin-bottom: var(--space-xl); }
.section-title { font-size: 1.5em; color: var(--color-text); margin-bottom: var(--space-md); padding-bottom: var(--space-sm); border-bottom: 2px solid var(--color-border); }
.form-group { margin-bottom: var(--space-md); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
label { display: block; font-weight: 600; margin-bottom: var(--space-xs); color: var(--color-text-soft); font-size: .95em; }
input, select { width: 100%; padding: 12px 15px; border: 2px solid var(--color-border); border-radius: var(--radius-sm); font-size: 16px; transition: all .2s ease; font-family: inherit; }
input:focus, select:focus { border-color: var(--color-primary); outline: none; box-shadow: 0 0 0 3px rgba(102,126,234,.1); }
input:disabled, input[readonly] { background: var(--color-surface-alt); cursor: not-allowed; }

/* Solo le classi esplicitamente marcate diventano maiuscole (prima era un
   selettore generico su type="text" che catturava anche campi non voluti) */
.uppercase-input, .uppercase-display { text-transform: uppercase; }
input::placeholder { text-transform: none; }

.categoria-display { background: #edf2f7; font-weight: 600; color: var(--color-text); }
.input-group { display: flex; gap: var(--space-sm); }
.input-group input { flex: 1; }
.form-hint { display: block; color: var(--color-text-muted); font-size: .85em; margin-top: var(--space-xs); }

/* Accesso richiesto (form nascosto se non loggati) */
.login-required-box {
    background: var(--color-surface-alt);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    text-align: center;
    color: var(--color-text-soft);
}
.login-required-box p { margin-top: var(--space-sm); }

/* Alert / toast — ora fisso in alto, sempre visibile indipendentemente
   dallo scroll (prima era un div normale nel flusso, subito sotto
   l'header: se l'utente scrollava fino in fondo al form per iscriversi,
   il messaggio di successo compariva fuori dallo schermo e poteva
   sfuggire completamente). */
#alertContainer {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    width: min(92%, 520px);
    pointer-events: none;
}
#alertContainer .alert { box-shadow: 0 12px 30px rgba(0,0,0,.25); pointer-events: auto; }
.alert { padding: 15px 20px; border-radius: 10px; display: none; font-weight: 500; }
.alert.show { display: block; animation: slideDown .4s ease; }
.alert-success { background: #c6f6d5; color: #22543d; border: 1px solid var(--color-success); }
.alert-error { background: #fed7d7; color: #742a2a; border: 1px solid var(--color-danger); }
.alert-info { background: #bee3f8; color: #2c5282; border: 1px solid #63b3ed; }

@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-10px); } 75% { transform: translateX(10px); } }

/* Eventi */
.limit-info { background: #edf2f7; padding: var(--space-md); border-radius: var(--radius-md); margin-bottom: 25px; }
.limit-info h4 { color: var(--color-text); margin-bottom: var(--space-sm); }
.limit-info ul { list-style: none; }
.limit-info li { padding: 5px 0; color: var(--color-text-soft); }
.limit-info li::before { content: "• "; color: var(--color-primary); font-weight: 700; }

.eventi-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 25px; }
.eventi-colonna { background: var(--color-surface-alt); border-radius: var(--radius-md); padding: var(--space-md); }
.eventi-tipo-title { font-size: 1.1em; font-weight: 700; margin-bottom: 15px; padding-bottom: var(--space-sm); border-bottom: 2px solid var(--color-border); }
.eventi-tipo-title.gara { color: #742a2a; }
.eventi-tipo-title.staffetta { color: #22543d; }
.eventi-tipo-title.gioco { color: #744210; }
.eventi-list { display: flex; flex-direction: column; gap: var(--space-sm); }
.evento-item { display: flex; align-items: flex-start; gap: 12px; padding: var(--space-sm); background: var(--color-surface); border-radius: var(--radius-sm); transition: all .15s ease; }
.evento-item:hover { background: #edf2f7; transform: translateX(4px); }
.evento-item input[type="checkbox"] { width: 18px; height: 18px; margin-top: 2px; cursor: pointer; flex-shrink: 0; }
.evento-item label { flex: 1; margin: 0; cursor: pointer; font-weight: 400; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.evento-nome { font-weight: 500; }

.badge { display: inline-block; padding: 2px 10px; border-radius: var(--radius-pill); font-size: .7em; font-weight: 600; text-transform: uppercase; }
.badge-categoria { background: var(--color-border); color: var(--color-text-soft); }
.badge-max { background: #bee3f8; color: #2c5282; }
.badge-society { background: var(--color-primary); color: #fff; padding: 4px 14px; border-radius: var(--radius-pill); font-size: .75em; font-weight: 600; }

/* Submit / Footer */
.submit-section { text-align: center; padding-top: var(--space-md); border-top: 2px solid var(--color-border); }
.footer { text-align: center; margin-top: var(--space-xl); padding-top: var(--space-md); border-top: 2px solid var(--color-border); color: var(--color-text-muted); font-size: .9em; }
.footer-contact { margin-top: 5px; font-size: .85em; }

/* Registrazione */
#registerForm .form-group { margin-bottom: 12px; }
#registerForm label { font-size: .9em; }

/* Responsive */
@media (max-width: 992px) { .eventi-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .eventi-grid { grid-template-columns: 1fr; } }
@media (max-width: 768px) {
    .container { padding: var(--space-md); }
    .header-title { font-size: 2em; }
    .form-row { grid-template-columns: 1fr; }
    .user-info { flex-direction: column; align-items: flex-start; }
    .input-group { flex-direction: column; }
    .btn-verifica { width: 100%; justify-content: center; }
}
@media (max-width: 480px) {
    body { padding: var(--space-sm); }
    .container { padding: 15px; }
    .header-title { font-size: 1.5em; }
    .user-info-content { font-size: .9em; }
}