/* Made with the help of AI */

/* =====================================================================
   Variabili (palette ispirata a xelerity.it)
   ===================================================================== */
:root {
    --color-bg:           #101720;
    --color-bg-soft:      #18222e;
    --color-card:         #ffffff;
    --color-text:         #111111;
    --color-text-soft:    #4a5563;
    --color-text-invert:  #ffffff;
    --color-border:       #d8dde3;
    --color-border-focus: #3A9EB3;
    --color-accent:       #3A9EB3;
    --color-accent-hover: #2f8395;
    --color-accent-soft:  #e7f4f7;
    --color-error:        #c0392b;
    --color-error-bg:     #fdecea;
    --color-success:      #1f7a4d;
    --color-success-bg:   #e6f4ec;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.25);

    --font-sans:    'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    --font-display: 'Instrument Sans', 'Inter', system-ui, sans-serif;
}

/* =====================================================================
   Reset minimale
   ===================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.55;
    color: var(--color-text-invert);
    background:
        radial-gradient(1200px 600px at 80% -10%, rgba(58,158,179,0.18), transparent 60%),
        radial-gradient(900px 500px at -10% 30%, rgba(58,158,179,0.10), transparent 60%),
        var(--color-bg);
    min-height: 100vh;
}

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

/* =====================================================================
   Layout
   ===================================================================== */
.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 20px;
}

/* =====================================================================
   Header / Footer
   ===================================================================== */
.site-header {
    padding: 28px 0 8px;
}

.brand {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: var(--color-text-invert);
}

.brand-logo {
    display: block;
    height: 44px;
    width: auto;
    max-width: 70vw;
}

@media (max-width: 480px) {
    .brand-logo { height: 36px; }
}

.site-footer {
    margin-top: 80px;
    padding: 56px 0 28px;
    color: rgba(255,255,255,0.72);
    background: #0a1119;
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 14px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.2fr 1fr;
    gap: 40px;
    align-items: start;
}

.footer-brand .footer-logo {
    display: block;
    height: 44px;
    width: auto;
    max-width: 100%;
    margin-bottom: 14px;
}

.footer-tagline {
    margin: 0 0 14px;
    color: rgba(255,255,255,0.6);
    font-size: 13px;
    line-height: 1.5;
    max-width: 28ch;
}

.footer-site-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1px solid var(--color-accent);
    border-radius: 999px;
    color: var(--color-accent);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: background-color 120ms ease, color 120ms ease;
}

.footer-site-link:hover,
.footer-site-link:focus-visible {
    background: var(--color-accent);
    color: #fff;
    outline: none;
}

.footer-title {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.85);
    margin: 0 0 14px;
}

.footer-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-nav a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 120ms ease;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
    color: var(--color-accent);
    outline: none;
}

.footer-divider {
    height: 1px;
    background: linear-gradient(90deg,
        transparent,
        rgba(255,255,255,0.12) 20%,
        rgba(255,255,255,0.12) 80%,
        transparent);
    margin: 32px 0 22px;
}

.footer-legal {
    display: grid;
    grid-template-columns: 1fr auto;
    column-gap: 32px;
    row-gap: 6px;
    align-items: start;
    color: rgba(255,255,255,0.55);
    font-size: 12.5px;
    line-height: 1.55;
}

.footer-legal .footer-copy,
.footer-legal .footer-addresses {
    grid-column: 1;
}

.footer-legal .footer-policies {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: start;
    justify-self: end;
    text-align: right;
}

.footer-legal p {
    margin: 0;
}

.footer-legal strong {
    color: rgba(255,255,255,0.75);
    font-weight: 600;
}

.footer-sep {
    margin: 0 8px;
    color: rgba(255,255,255,0.3);
}

.footer-policies {
    list-style: none;
    padding: 0;
    margin: 8px 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
}

.footer-policies a {
    color: rgba(255,255,255,0.78);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.18);
    padding-bottom: 1px;
    transition: color 120ms ease, border-color 120ms ease;
}

.footer-policies a:hover,
.footer-policies a:focus-visible {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
    outline: none;
}

@media (max-width: 880px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .footer-sep { display: none; }
    .footer-legal .footer-addresses strong { display: inline-block; margin-top: 4px; }
    .footer-legal {
        grid-template-columns: 1fr;
        row-gap: 14px;
    }
    .footer-legal .footer-copy,
    .footer-legal .footer-addresses { grid-column: 1; }
    .footer-legal .footer-policies {
        grid-column: 1;
        grid-row: auto;
        justify-self: start;
        text-align: left;
    }
}

/* =====================================================================
   Intro
   ===================================================================== */
.page-intro {
    margin: 24px 0 28px;
}

.page-intro h1 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(28px, 4vw, 38px);
    margin: 0 0 10px;
    letter-spacing: -0.01em;
}

.page-intro .lead {
    margin: 0;
    color: rgba(255,255,255,0.78);
    max-width: 70ch;
}

.req {
    color: var(--color-accent);
    font-weight: 700;
}

/* =====================================================================
   Form card
   ===================================================================== */
.form {
    background: var(--color-card);
    color: var(--color-text);
    border-radius: var(--radius-lg);
    padding: 12px;
    box-shadow: var(--shadow-card);
}

.section {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 22px 22px 18px;
    margin: 16px;
}

.section + .section { margin-top: 18px; }

.section legend {
    padding: 4px 12px;
    margin-left: 8px;
    background: var(--color-accent);
    color: var(--color-text-invert);
    border-radius: 999px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.02em;
}

.subheading {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-soft);
    margin: 18px 0 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--color-border);
}

.subheading .muted {
    color: var(--color-text-soft);
    font-weight: 400;
    font-size: 14px;
}

.help {
    color: var(--color-text-soft);
    font-size: 14px;
    margin: 0 0 12px;
}

/* =====================================================================
   Grid e campi
   ===================================================================== */
.grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 14px 16px;
}

.field {
    grid-column: span 6;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.field.full   { grid-column: span 12; }
.field.small  { grid-column: span 3;  }
.field.xsmall { grid-column: span 2;  }

@media (max-width: 640px) {
    .field, .field.full, .field.small, .field.xsmall { grid-column: span 12; }
}

.field > label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}

.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field input[type="date"],
.field input[type="file"] {
    width: 100%;
    margin-top: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    font: inherit;
    color: var(--color-text);
    background: #fff;
    transition: border-color 120ms ease, box-shadow 120ms ease;
}

.field input::placeholder {
    color: #9aa3ad;
}

.field input:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(58,158,179,0.18);
}

.field input[type="file"] {
    padding: 8px 10px;
    background: #fafbfc;
    cursor: pointer;
}

.field input[type="file"]::file-selector-button {
    border: 0;
    background: var(--color-accent);
    color: #fff;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    margin-right: 12px;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
}

.field input[type="file"]::file-selector-button:hover {
    background: var(--color-accent-hover);
}

.field input.invalid,
.field input[aria-invalid="true"] {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.15);
}

.field input[readonly],
.field input.is-locked {
    background: #f4f6f8;
    color: var(--color-text-soft);
    cursor: not-allowed;
}

.field .field-error {
    color: var(--color-error);
    font-size: 13px;
    margin-top: 2px;
    min-height: 1em;
}

/* Checkbox privacy */
.field.check {
    grid-column: span 12;
}

.check-label {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 14px;
    color: var(--color-text-soft);
    cursor: pointer;
}

.check-label input[type="checkbox"] {
    margin-top: 3px;
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent);
    flex-shrink: 0;
}

/* =====================================================================
   Honeypot — nascosto a utenti e screen reader, raggiungibile dai bot
   ===================================================================== */
.hp-field {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* =====================================================================
   Stato form (success / error)
   ===================================================================== */
.form-status {
    margin: 0 16px;
    padding: 0 8px;
    font-size: 14px;
    color: var(--color-text);
}

.form-status.is-error {
    background: var(--color-error-bg);
    color: var(--color-error);
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(192, 57, 43, 0.25);
    margin: 14px 16px 0;
}

.form-status.is-success {
    background: var(--color-success-bg);
    color: var(--color-success);
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(31, 122, 77, 0.25);
    margin: 14px 16px 0;
}

/* =====================================================================
   Azioni
   ===================================================================== */
.actions {
    display: flex;
    justify-content: flex-end;
    padding: 8px 16px 22px;
}

.btn {
    border: 0;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    transition: background-color 120ms ease, transform 60ms ease;
}

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

.btn-primary {
    background: var(--color-accent);
    color: var(--color-text-invert);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-accent-hover);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(1px);
}