/*
  Studio Medico Policastrum — "Alpine" visual system.
  Plain CSS, no build step, no external requests. System font stacks only.
*/

:root {
    color-scheme: light;

    /* Palette */
    --snow: #f6f7f4;
    --snow-alt: #edf1ec;
    --ink: #1b2b2c;
    --ink-soft: #4b5b5a;
    --pine: #163f43;
    --pine-deep: #102e31;
    --alpine-blue: #2f6485;
    --alpine-blue-deep: #244d68;
    --sage: #cfdccd;
    --sage-line: #dde6da;
    --accent-warm: #bd753f;

    /* Type */
    --font-display: Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    /* Surfaces */
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-soft: 0 10px 30px rgba(16, 46, 49, 0.08);
    --shadow-tight: 0 2px 10px rgba(16, 46, 49, 0.06);
    --space-section: clamp(3rem, 6vw, 5.5rem);
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--snow);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-family: var(--font-display);
    color: var(--pine-deep);
    line-height: 1.2;
    margin: 0 0 0.6em;
}

h1 { font-size: clamp(2rem, 4.2vw, 2.9rem); }
h2 { font-size: clamp(1.4rem, 2.6vw, 1.75rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; }

a {
    color: var(--alpine-blue-deep);
    text-decoration-thickness: 1.5px;
    text-underline-offset: 3px;
}

a:hover { color: var(--pine-deep); }

/* Keyboard accessibility: a strong, unmistakable focus ring everywhere */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid var(--accent-warm);
    outline-offset: 3px;
    border-radius: 4px;
}

.skip-link {
    position: absolute;
    left: 1rem;
    top: -3rem;
    background: var(--pine);
    color: var(--snow);
    padding: 0.6rem 1rem;
    border-radius: var(--radius-md);
    z-index: 100;
    transition: top 0.15s ease;
}

.skip-link:focus {
    top: 1rem;
}

.wrap {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- Header / nav --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(246, 247, 244, 0.92);
    backdrop-filter: saturate(140%) blur(6px);
    border-bottom: 1px solid var(--sage-line);
}

.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--pine-deep);
    text-decoration: none;
}

.brand:hover { color: var(--pine-deep); }

.main-nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

.main-nav a {
    color: var(--ink-soft);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
}

.main-nav a:hover { color: var(--pine-deep); }

/* --- Hero --- */
.hero {
    padding: var(--space-section) 0 3rem;
}

.badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    background: var(--sage);
    color: var(--pine-deep);
    margin-bottom: 1.25rem;
}

.hero-lede {
    max-width: 62ch;
    color: var(--ink-soft);
    font-size: 1.15rem;
}

.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin-top: 1.75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    font-size: 0.98rem;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--alpine-blue);
    color: var(--snow);
}

.btn-primary:hover {
    background: var(--alpine-blue-deep);
    color: var(--snow);
}

.btn-secondary {
    background: transparent;
    border-color: var(--pine);
    color: var(--pine-deep);
}

.btn-secondary:hover {
    background: var(--pine);
    color: var(--snow);
}

/* --- Info cards (orari / sede / contatti) --- */
.info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    padding: 2.5rem 0;
}

.card {
    background: var(--snow-alt);
    border: 1px solid var(--sage-line);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-tight);
}

.card h3 {
    color: var(--pine-deep);
    margin-bottom: 0.75rem;
}

.card dl {
    margin: 0;
}

.card dt {
    font-weight: 600;
    color: var(--ink);
    margin-top: 0.85rem;
}

.card dt:first-child { margin-top: 0; }

.card dd {
    margin: 0.2rem 0 0;
    color: var(--ink-soft);
}

.tag-provisional {
    display: inline-block;
    font-size: 0.78rem;
    color: var(--accent-warm);
    font-weight: 600;
}

/* --- Callout / CTA band --- */
.callout {
    background: var(--pine);
    color: var(--snow);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    margin: 1rem 0 var(--space-section);
    box-shadow: var(--shadow-soft);
}

.callout h2 { color: var(--snow); }

.callout p {
    color: rgba(246, 247, 244, 0.85);
    max-width: 60ch;
}

.callout .cta-row .btn-secondary {
    border-color: var(--snow);
    color: var(--snow);
}

.callout .cta-row .btn-secondary:hover {
    background: var(--snow);
    color: var(--pine-deep);
}

/* --- Footer --- */
.site-footer {
    background: var(--pine-deep);
    color: rgba(246, 247, 244, 0.75);
    padding: 2.5rem 0;
    font-size: 0.9rem;
}

.site-footer .wrap {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.5rem;
}

.site-footer a { color: var(--snow); }

/* --- 404 --- */
.error-page main {
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.error-page .wrap {
    text-align: center;
    padding: 4rem 1.5rem;
}

.error-code {
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 5rem);
    color: var(--sage);
    margin: 0;
}

/* --- Responsive --- */
@media (max-width: 800px) {
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .main-nav ul { gap: 1rem; }
    .callout { padding: 1.75rem; }
}