/**
 * Stili principali - Event Landing Page
 *
 * Colori brand: #003d70 #5291e6
 * Font: Source Sans 3 (fallback per Benton Sans)
 *
 * @package EventLanding
 * @since   1.0.0
 */

/* ==========================================================================
   FONT-FACE (decommentare per Benton Sans locale)
   ========================================================================== */

@font-face {
    font-family: 'Benton Sans';
    src: url('../fonts/BentonSans-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Benton Sans';
    src: url('../fonts/BentonSans-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Benton Sans';
    src: url('../fonts/BentonSans-Light.otf') format('opentype');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}


/* ==========================================================================
   CUSTOM PROPERTIES / TEMI
   ========================================================================== */
:root,
[data-theme="light"] {
    /* Brand */
    --color-primary:       #003d70;
    --color-secondary:     #5291e6;
    --color-tertiary:      #003d70;
    --color-accent:        #e3f2fd;

    /* Superfici */
    --color-bg:            #ffffff;
    --color-bg-alt:        #f5f5f5;
    --color-surface:       #ffffff;
    --color-surface-hover: #f0f4f8;
    --color-border:        #d0d0d0;
    --color-border-focus:  #5291e6;

    /* Testo */
    --color-text:          #1a1a1a;
    --color-text-muted:    #606060;
    --color-text-inverse:  #ffffff;

    /* Feedback */
    --color-success:       #1a7a3a;
    --color-success-bg:    #e6f4ea;
    --color-error:         #c5221f;
    --color-error-bg:      #fce8e6;
    --color-warning:       #9a5400;
    --color-warning-bg:    #fef7e0;

    /* Ombre */
    --shadow-sm:  0 1px 2px rgba(0,0,0,0.05);
    --shadow-md:  0 2px 4px rgba(0,0,0,0.08);
    --shadow-lg:  0 4px 8px rgba(0,0,0,0.1);
    --shadow-card: 0 1px 3px rgba(0,0,0,0.06);

    /* Tipografia */
    --font-family:     'Benton Sans', 'Source Sans 3', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base:  1rem;
    --font-size-sm:    0.875rem;
    --font-size-lg:    1.125rem;
    --font-size-xl:    1.5rem;
    --font-size-2xl:   2rem;
    --font-size-3xl:   2.5rem;
    --line-height:     1.6;

    /* Spaziature */
    --space-xs:  0.25rem;
    --space-sm:  0.5rem;
    --space-md:  1rem;
    --space-lg:  1.5rem;
    --space-xl:  2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Bordi */
    --radius-sm:  0;
    --radius-md:  0;
    --radius-lg:  0;
    --radius-xl:  0;

    /* Transizioni */
    --transition-fast:   150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow:   400ms ease;

    /* Focus */
    --focus-ring: 0 0 0 3px rgba(82, 145, 230, 0.5);

    /* Container */
    --container-max: 960px;
}

[data-theme="dark"] {
    --color-bg:            #0f1117;
    --color-bg-alt:        #1a1d27;
    --color-surface:       #1e2130;
    --color-surface-hover: #272b3d;
    --color-border:        #333851;
    --color-border-focus:  #5291e6;

    --color-text:          #e4e6ed;
    --color-text-muted:    #9498a8;
    --color-text-inverse:  #0f1117;

    --color-primary:       #5291e6;
    --color-secondary:     #6fa8ef;
    --color-tertiary:      #7db4e0;
    --color-accent:        #1e3a42;

    --color-success:       #34d058;
    --color-success-bg:    #0d2818;
    --color-error:         #f97583;
    --color-error-bg:      #3b1114;
    --color-warning:       #ffab70;
    --color-warning-bg:    #3b2e14;

    --shadow-sm:  0 1px 3px rgba(0,0,0,0.3);
    --shadow-md:  0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg:  0 8px 30px rgba(0,0,0,0.5);
    --shadow-card: 0 2px 8px rgba(0,0,0,0.3), 0 0 0 1px rgba(255,255,255,0.05);
}

/* ==========================================================================
   RESET & BASE
   ========================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 100%;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-normal), color var(--transition-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-secondary);
    text-decoration: underline;
    transition: color var(--transition-fast);
}
a:hover {
    color: var(--color-primary);
}
a:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* ==========================================================================
   SKIP LINK
   ========================================================================== */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-md);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    padding: var(--space-sm) var(--space-md);
    z-index: 10000;
    font-weight: 600;
    text-decoration: none;
    transition: top var(--transition-fast);
}
.skip-link:focus {
    top: 0;
}

/* ==========================================================================
   CONTAINER
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-lg);
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
    background: var(--color-bg);
}

.header__logo-band {
    background: var(--color-bg);
    text-align: center;
    padding: var(--space-lg) var(--space-md);
}

.header__logo-ministero {
    margin: 0 auto;
    max-width: 280px;
}

.header__banner {
    position: relative;
    width: 100%;
    max-height: 400px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
}

.header__banner-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    opacity: 0.4;
}

.header__banner-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-xl);
}

.header__title {
    font-size: clamp(1.3rem, 3.5vw, var(--font-size-2xl));
    font-weight: 700;
    color: #ffffff;
    line-height: 1.2;
    max-width: 800px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.header__date {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-accent);
    margin-top: var(--space-sm);
    text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}

/* ==========================================================================
   MAIN CONTENT
   ========================================================================== */
.main-content {
    padding: var(--space-2xl) 0 var(--space-3xl);
}

/* Intro */
.intro {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-2xl);
}

.intro__welcome {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.intro__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.intro__note {
    font-size: var(--font-size-sm);
    color: var(--color-warning);
    font-weight: 600;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-warning-bg);
    border: 1px solid var(--color-warning);
    display: inline-block;
}

/* ==========================================================================
   EVENT CARDS
   ========================================================================== */
.events-toolbar {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.events-toolbar__btn {
    background: none;
    border: 1px solid var(--color-border);
    padding: var(--space-xs) var(--space-md);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 36px;
}

.events-toolbar__btn:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.events-toolbar__btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.events-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.event-group {
    border: 1px solid var(--color-border);
    padding: var(--space-lg);
    background: transparent;
}

.event-group__notice {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-accent);
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-secondary);
    margin-bottom: var(--space-md);
    text-align: center;
}

.event-group__cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.event-card {
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    padding: var(--space-lg);
    transition: all var(--transition-fast);
    position: relative;
}

.event-card:hover {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-card);
}

.event-card--selected {
    border-color: var(--color-primary);
    background: var(--color-accent);
}

.event-card__header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.event-card__radio,
.event-card__checkbox {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.event-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    flex: 1;
}

.event-card__subtitle {
    display: block;
    font-size: var(--font-size-base);
    font-weight: 400;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

.event-card__extended-desc {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.5;
}

.event-card__details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    padding-left: 36px;
}

.event-card__detail {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.event-card__label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.event-card__value {
    font-size: var(--font-size-base);
    color: var(--color-text);
}

.event-card--none {
    background: transparent;
    border-style: dashed;
    border-color: var(--color-border);
}

.event-card--none:hover {
    background: var(--color-bg-alt);
}

.event-card--none .event-card__title {
    font-weight: 500;
    color: var(--color-text-muted);
}

/* Radio choice group per Sì/No */
.event-choice {
    background: var(--color-bg-alt);
    border: 2px solid var(--color-border);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    transition: all var(--transition-fast);
}

.event-choice:hover {
    border-color: var(--color-secondary);
}

.event-choice__header {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.event-choice__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.event-choice__subtitle {
    display: block;
    font-size: var(--font-size-base);
    font-weight: 400;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

.event-choice__extended-desc {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.5;
}

.event-choice__details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.event-choice__detail {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.event-choice__label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.event-choice__value {
    font-size: var(--font-size-base);
    color: var(--color-text);
}

.event-choice__options {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.event-choice__option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--color-border);
    background: var(--color-surface);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex: 1;
    min-width: 140px;
    justify-content: center;
}

.event-choice__option:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-secondary);
}

.event-choice__option--selected {
    border-color: var(--color-primary);
    background: var(--color-accent);
}

.event-choice__option input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-primary);
    margin: 0;
}

.event-choice__option-label {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    margin: 0;
}

/* ==========================================================================
   FORM ACTIONS
   ========================================================================== */
.form-actions {
    margin-top: var(--space-2xl);
    text-align: center;
}

.btn-submit {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border: none;
    padding: var(--space-md) var(--space-2xl);
    font-family: var(--font-family);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    min-height: 48px;
}

.btn-submit:hover:not(:disabled) {
    background: #002a50;
    box-shadow: var(--shadow-md);
}

.btn-submit:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring), var(--shadow-md);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-submit__spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.btn-submit--loading .btn-submit__spinner {
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   MODAL CONFERMA
   ========================================================================== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9000;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.modal-overlay--visible {
    display: flex;
}

.modal {
    background: var(--color-surface);
    padding: var(--space-2xl);
    max-width: 480px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 1px solid var(--color-border);
}

.modal__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.modal__message {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    line-height: 1.5;
}

.modal__actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
}

.modal__btn {
    padding: var(--space-sm) var(--space-xl);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 44px;
    border: 2px solid transparent;
}

.modal__btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.modal__btn--confirm {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}
.modal__btn--confirm:hover {
    background: #002a50;
}

.modal__btn--cancel {
    background: transparent;
    color: var(--color-text-muted);
    border-color: var(--color-border);
}
.modal__btn--cancel:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

/* ==========================================================================
   MESSAGES (successo, errore, already submitted)
   ========================================================================== */
.message-box {
    max-width: 960px;
    margin: var(--space-2xl) auto;
    padding: var(--space-lg);
    text-align: center;
    border: 2px solid;
}

.message-box--success {
    background: var(--color-success-bg);
    border-color: var(--color-success);
}

.message-box--error {
    background: var(--color-error-bg);
    border-color: var(--color-error);
}

.message-box--warning {
    background: var(--color-warning-bg);
    border-color: var(--color-warning);
}

.message-box__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.message-box--success .message-box__title { color: var(--color-success); }
.message-box--error .message-box__title   { color: var(--color-error); }
.message-box--warning .message-box__title { color: var(--color-warning); }

.message-box__text {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

/* QR Code nella pagina di successo */
.qr-section {
    margin-top: var(--space-xl);
    text-align: center;
}

.qr-section__label {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.qr-section__img {
    margin: 0 auto;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

/* Riepilogo eventi confermati */
.confirmed-events {
    text-align: left;
    margin-top: var(--space-xl);
}

.confirmed-events__title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
    text-align: center;
}

.confirmed-event {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: var(--space-md);
    margin-bottom: var(--space-sm);
}

.confirmed-event__name {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

.confirmed-event__subname {
    font-weight: 400;
    color: var(--color-text-muted);
}

.confirmed-event__info {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--space-2xl) 0;
    text-align: center;
}

.footer__collaboration {
    margin-bottom: var(--space-2xl);
}

.footer__collab-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.footer__collab-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

.footer__collab-logo {
    max-width: 160px;
    filter: var(--logo-filter, none);
}

[data-theme="dark"] .footer__collab-logo {
    filter: brightness(0.85) contrast(1.1);
}

.footer__powered {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.footer__powered-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.footer__powered-logo {
    max-width: 120px;
    margin: 0 auto;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 640px) {
    .event-card__details,
    .event-choice__details {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .event-card__header {
        flex-wrap: wrap;
    }

    .header__title {
        font-size: 1.2rem;
    }

    .header__banner {
        max-height: 280px;
    }
    .header__banner-img {
        height: 280px;
    }

    .modal__actions {
        flex-direction: column;
    }

    .footer__collab-logos {
        flex-direction: row;
        gap: var(--space-lg);
    }

    .event-choice__options {
        flex-direction: column;
    }

    .intro {
        padding: 0 var(--space-xl);
    }

    .event-group, .event-choice, .message-box--warning {
        margin: var(--space-sm);
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms;
        transition-duration: 0.01ms;
    }
    html {
        scroll-behavior: auto;
    }
}

/* ==========================================================================
   PRINT
   ========================================================================== */
@media print {
    .a11y-toolbar,
    .skip-link,
    .form-actions,
    .events-toolbar {
        display: none;
    }
    body {
        color: #000;
        background: #fff;
    }
    .event-card,
    .event-choice {
        break-inside: avoid;
        border: 1px solid #ccc;
    }
}