/* ══════════════════════════════════════════════
   Syntarq — Components
   Header, footer, CTA, card, form, back-to-top.
   ══════════════════════════════════════════════ */

/* ────────────────────────────────
   HEADER / NAVIGAZIONE
   ──────────────────────────────── */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background-color: var(--color-white);
    transition: box-shadow var(--transition-base);
}

.site-header--scrolled {
    box-shadow: var(--shadow-header);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* Logo */
.site-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.site-logo img {
    height: 36px;
    width: auto;
}

/* Navigazione desktop */
.site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.site-nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-nav__link {
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    text-decoration: none;
    letter-spacing: 0.02em;
    padding: var(--space-xs) 0;
    position: relative;
    transition: color var(--transition-base);
}

.site-nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-cyan);
    transition: width var(--transition-base);
}

.site-nav__link:hover,
.site-nav__link--active {
    color: var(--color-cyan);
}

.site-nav__link:hover::after,
.site-nav__link--active::after {
    width: 100%;
}

/* Switch lingua */
.lang-switch {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    margin-left: var(--space-sm);
}

.lang-switch a {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    color: var(--color-grey-dark);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 6px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.lang-switch a:hover {
    color: var(--color-primary);
}

.lang-switch a.active {
    color: var(--color-primary);
    background-color: var(--color-grey-light);
}

.lang-switch img {
    width: 16px;
    height: 12px;
    object-fit: cover;
    border-radius: 1px;
}

/* Hamburger mobile */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}

.menu-toggle__bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    transition: all var(--transition-base);
    margin: 3px 0;
}

.menu-toggle--open .menu-toggle__bar:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.menu-toggle--open .menu-toggle__bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle--open .menu-toggle__bar:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* ────────────────────────────────
   CTA / PULSANTI
   ──────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
    font-size: var(--font-size-cta);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
    padding: 16px 32px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    line-height: 1;
}

/* CTA primaria */
.btn--primary {
    background-color: var(--color-cyan);
    color: var(--color-white);
    border-color: var(--color-cyan);
}

.btn--primary:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* CTA secondaria */
.btn--secondary {
    background-color: transparent;
    color: var(--color-cyan);
    border-color: var(--color-cyan);
}

.btn--secondary:hover {
    background-color: var(--color-cyan);
    color: var(--color-white);
}

/* CTA su fondo scuro */
.section--dark .btn--secondary {
    color: var(--color-cyan);
    border-color: var(--color-cyan);
}

.section--dark .btn--secondary:hover {
    background-color: var(--color-cyan);
    color: var(--color-white);
}

/* CTA header */
.btn--header {
    font-size: var(--font-size-small);
    padding: 10px 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ────────────────────────────────
   CARD SERVIZI
   ──────────────────────────────── */
.card {
    background-color: var(--color-white);
    border: 1px solid var(--color-grey-mid);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    transition: box-shadow var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-medium);
}

.card__icon {
    width: 120px;
    height: 120px;
    margin-bottom: var(--space-sm);
}

.card__icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.card__title {
    font-size: var(--font-size-h3);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

.card__text {
    font-size: var(--font-size-small);
    color: var(--color-grey-dark);
    line-height: var(--line-height-base);
}

/* ────────────────────────────────
   FORM
   ──────────────────────────────── */
.form-group {
    margin-bottom: var(--space-sm);
}

.form-label {
    display: block;
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-grey-mid);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-white);
    transition: border-color var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-cyan);
    box-shadow: 0 0 0 3px rgba(91, 192, 222, 0.15);
}

.form-textarea {
    min-height: 160px;
    resize: vertical;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-grey-mid);
}

/* Checkbox GDPR */
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-xs);
}

.form-checkbox input[type="checkbox"] {
    margin-top: 4px;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    accent-color: var(--color-cyan);
}

.form-checkbox label {
    font-size: var(--font-size-small);
    color: var(--color-grey-dark);
    line-height: var(--line-height-small);
}

.form-checkbox a {
    color: var(--color-cyan);
    text-decoration: underline;
}

/* Honeypot antispam */
.form-hp {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    overflow: hidden;
}

/* Messaggio conferma */
.form-message {
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    margin-top: var(--space-sm);
    font-size: var(--font-size-small);
}

.form-message--success {
    background-color: #E8F5E9;
    color: #2E7D32;
    border: 1px solid #A5D6A7;
}

.form-message--error {
    background-color: #FFEBEE;
    color: #C62828;
    border: 1px solid #EF9A9A;
}

/* ────────────────────────────────
   CTA SECTION (riutilizzabile)
   ──────────────────────────────── */
.cta-section {
    text-align: center;
    padding: var(--space-xl) 0;
}

.cta-section__title {
    font-size: var(--font-size-h2);
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.cta-section__text {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ────────────────────────────────
   FOOTER
   ──────────────────────────────── */
.site-footer {
    background-color: var(--color-bg-dark);
    color: var(--color-white);
    position: relative;
}

.site-footer__main {
    padding: var(--space-lg) 0;
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: var(--space-lg);
}

.site-footer__brand {
    display: flex;
    flex-direction: column;
}

.site-footer__logo {
    height: 32px;
    width: auto;
    margin-bottom: var(--space-sm);
}

.site-footer__payoff {
    font-size: var(--font-size-small);
    color: var(--color-grey-dark);
    font-style: italic;
}

.site-footer__title {
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-sm);
}

.site-footer__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-footer__list li {
    margin-bottom: var(--space-xs);
}

.site-footer__list a {
    font-size: var(--font-size-small);
    color: var(--color-grey-dark);
    text-decoration: none;
    transition: color var(--transition-base);
}

.site-footer__list a:hover {
    color: var(--color-cyan);
}

/* Footer barra inferiore */
.site-footer__bottom {
    background-color: var(--color-bg-dark-deep);
    padding: var(--space-sm) 0;
}

.site-footer__bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.site-footer__copyright {
    font-size: 12px;
    color: var(--color-grey-dark);
}

.site-footer__legal {
    display: flex;
    gap: var(--space-sm);
}

.site-footer__legal a {
    font-size: 12px;
    color: var(--color-grey-dark);
    text-decoration: none;
    transition: color var(--transition-base);
}

.site-footer__legal a:hover {
    color: var(--color-cyan);
}

/* ────────────────────────────────
   BACK TO TOP
   ──────────────────────────────── */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 900;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-cyan);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-round);
    cursor: pointer;
    box-shadow: var(--shadow-medium);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: all var(--transition-base);
}

.back-to-top--visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--color-primary);
}

.back-to-top:focus-visible {
    outline: 2px solid var(--color-cyan);
    outline-offset: 2px;
}

.back-to-top svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ────────────────────────────────
   COOKIE BANNER
   ──────────────────────────────── */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 2000;
    background-color: var(--color-white);
    box-shadow: 0 -4px 20px rgba(11, 20, 50, 0.12);
    padding: var(--space-md);
    transform: translateY(100%);
    transition: transform var(--transition-slow);
}

.cookie-banner--visible {
    transform: translateY(0);
}

.cookie-banner .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.cookie-banner__text {
    flex: 1;
}

.cookie-banner__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

.cookie-banner__desc {
    font-size: var(--font-size-small);
    color: var(--color-grey-dark);
    line-height: var(--line-height-small);
}

.cookie-banner__desc a {
    color: var(--color-cyan);
    text-decoration: underline;
}

.cookie-banner__actions {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    flex-shrink: 0;
}

.cookie-banner__btn {
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-semibold);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid transparent;
    white-space: nowrap;
}

.cookie-banner__btn--accept {
    background-color: var(--color-cyan);
    color: var(--color-white);
    border-color: var(--color-cyan);
}

.cookie-banner__btn--accept:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

/* GDPR: Rifiuta altrettanto visibile di Accetta */
.cookie-banner__btn--reject {
    background-color: var(--color-grey-light);
    color: var(--color-primary);
    border-color: var(--color-grey-mid);
}

.cookie-banner__btn--reject:hover {
    background-color: var(--color-grey-mid);
}

.cookie-banner__btn--customize {
    background-color: transparent;
    color: var(--color-grey-dark);
    border-color: transparent;
    text-decoration: underline;
}

.cookie-banner__btn--customize:hover {
    color: var(--color-primary);
}

/* ────────────────────────────────
   RESPONSIVE — COMPONENTI
   ──────────────────────────────── */

/* Tablet */
@media (max-width: 1200px) {
    .site-footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-md);
    }
}

/* Mobile */
@media (max-width: 768px) {
    /* Header mobile */
    .menu-toggle {
        display: flex;
    }

    .site-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--color-white);
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-md);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        z-index: 999;
    }

    .site-nav--open {
        transform: translateX(0);
    }

    .site-nav__list {
        flex-direction: column;
        gap: 0;
    }

    .site-nav__link {
        display: block;
        font-size: var(--font-size-base);
        padding: var(--space-sm) 0;
        border-bottom: 1px solid var(--color-grey-light);
    }

    .lang-switch {
        margin-left: 0;
        margin-top: var(--space-sm);
        padding-top: var(--space-sm);
        border-top: 1px solid var(--color-grey-light);
    }

    /* Footer mobile */
    .site-footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .site-footer__bottom .container {
        flex-direction: column;
        text-align: center;
    }

    /* Cookie banner mobile */
    .cookie-banner .container {
        flex-direction: column;
        align-items: stretch;
    }

    .cookie-banner__actions {
        flex-direction: column;
    }

    .cookie-banner__btn {
        width: 100%;
        text-align: center;
    }

    /* Back to top mobile */
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}