/* ===========================================================
   Consulenze Tossicologiche Forensi — design system
   Palette: inchiostro/navy istituzionale + accento ambra
   (il colore dei flaconi ambrati usati per proteggere i
   campioni tossicologici dalla luce — richiamo di settore).
   Tipografia: Fraunces (display, voce editoriale/accademica)
   + IBM Plex Sans (testo, registro tecnico-scientifico).
   =========================================================== */

:root {
    --ink: #1B2531;
    --navy-deep: #0F2437;
    --navy: #17324D;
    --slate: #3C6488;
    --amber: #A9762F;
    --amber-soft: #C79A54;
    --paper: #F6F5F0;
    --paper-alt: #EDEAE1;
    --line: #DCD6C7;
    --white: #FFFFFF;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: "IBM Plex Sans", Arial, sans-serif;
    color: var(--ink);
    background: var(--paper);
    line-height: 1.65;
}

h1, h2, h3, h4, .font-display {
    font-family: "Fraunces", Georgia, serif;
    color: var(--navy-deep);
    font-weight: 600;
    line-height: 1.15;
}

p { max-width: 68ch; }
.text-center p, .card-block p:last-child { margin-bottom: 0; }

a { color: var(--slate); text-decoration: none; }
a:hover { color: var(--amber); }

/* ---------- Navbar ---------- */
.site-nav {
    background: var(--white);
    border-bottom: 1px solid var(--line);
    padding: .6rem 0;
}

.site-nav .navbar-brand {
    font-family: "Fraunces", Georgia, serif;
    font-weight: 600;
    font-size: 1.3rem;
    color: var(--navy-deep) !important;
    letter-spacing: -.01em;
}

.site-nav .nav-link {
    color: var(--ink) !important;
    font-weight: 500;
    font-size: .96rem;
    padding: .5rem .9rem !important;
    position: relative;
}

.site-nav .nav-link:hover {
    color: var(--amber) !important;
}

.site-nav .navbar-toggler {
    border: 1px solid var(--line);
}

/* ---------- Hero (split layout: testo + immagine) ---------- */
.hero-split {
    background: var(--navy-deep);
    padding: 4.5rem 0;
    overflow: hidden;
}

.hero-split .hero-text h1 {
    color: var(--white);
    font-size: clamp(2.1rem, 4vw, 3.1rem);
    max-width: 14ch;
}

.hero-split .hero-text p {
    color: #D9E0E7;
    font-size: 1.1rem;
    max-width: 46ch;
}

.hero-split .hero-rule {
    width: 56px;
    height: 3px;
    background: var(--amber);
    margin-bottom: 1.5rem;
    border: none;
}

.figure-frame {
    position: relative;
    overflow: hidden;
    border-radius: 3px;
    aspect-ratio: 4 / 3;
}

.figure-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: grayscale(8%) contrast(1.05) saturate(.92);
}

.figure-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(155deg, rgba(15, 36, 55, .55), rgba(169, 118, 47, .12) 70%);
    mix-blend-mode: multiply;
}

.figure-frame.on-light::after {
    background: linear-gradient(155deg, rgba(15, 36, 55, .28), rgba(169, 118, 47, .10) 70%);
}

/* Simple hero (pagine senza grande immagine in testata) */
.hero-simple {
    background: var(--navy-deep);
    color: var(--white);
    padding: 3.5rem 0;
}

.hero-simple h1 { color: var(--white); font-size: clamp(1.9rem, 3.4vw, 2.6rem); }
.hero-simple p { color: #D9E0E7; }

/* ---------- Section rhythm ---------- */
.section-title {
    font-size: clamp(1.5rem, 2.4vw, 2rem);
    margin-bottom: 1.75rem;
}

.section-lede {
    max-width: 62ch;
}

.bg-alt { background: var(--paper-alt); }

/* ---------- Content blocks (sostituiscono le card Bootstrap generiche) ---------- */
.card-block {
    border-top: 2px solid var(--amber);
    padding: 1.6rem 0 0;
    height: 100%;
}

.card-block h3, .card-block h4, .card-block h5 {
    font-size: 1.15rem;
    margin-bottom: .6rem;
}

.card-block ul {
    padding-left: 1.15rem;
    margin-bottom: 0;
}

.card-block ul li { margin-bottom: .3rem; }

.panel {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 2.5rem;
}

/* ---------- Full-width image band ---------- */
.image-band {
    position: relative;
    min-height: 320px;
    display: flex;
    align-items: flex-end;
    border-radius: 3px;
    overflow: hidden;
}

.image-band img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(10%) contrast(1.05) saturate(.9);
}

.image-band::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(15, 36, 55, .88) 10%, rgba(15, 36, 55, .1) 65%);
}

.image-band .band-caption {
    position: relative;
    color: var(--white);
    padding: 1.75rem 2rem;
    max-width: 46ch;
    font-family: "Fraunces", Georgia, serif;
    font-size: 1.3rem;
    line-height: 1.35;
}

/* ---------- Buttons ---------- */
.btn-main {
    background: var(--navy-deep);
    color: var(--white);
    border: none;
    padding: .75rem 1.85rem;
    border-radius: 2px;
    font-weight: 600;
    display: inline-block;
    letter-spacing: .01em;
}

.btn-main:hover {
    background: var(--amber);
    color: var(--white);
}

.btn-outline-main {
    border: 1px solid var(--white);
    color: var(--white);
    padding: .7rem 1.75rem;
    border-radius: 2px;
    font-weight: 600;
    display: inline-block;
}

.btn-outline-main:hover {
    background: var(--white);
    color: var(--navy-deep);
}

/* ---------- Forms ---------- */
.form-label { font-weight: 600; font-size: .92rem; color: var(--navy-deep); }

.form-control {
    border-radius: 2px;
    border: 1px solid var(--line);
    padding: .6rem .8rem;
}

.form-control:focus {
    border-color: var(--amber);
    box-shadow: 0 0 0 .2rem rgba(169, 118, 47, .15);
}

/* ---------- Accordion (FAQ) ---------- */
.accordion-item {
    border: none;
    border-bottom: 1px solid var(--line);
    background: transparent;
}

.accordion-button {
    background: transparent;
    font-family: "Fraunces", Georgia, serif;
    font-weight: 600;
    color: var(--navy-deep);
    padding: 1.15rem 0;
    box-shadow: none !important;
}

.accordion-button:not(.collapsed) { color: var(--amber); background: transparent; }
.accordion-button::after { flex-shrink: 0; }
.accordion-body { padding: 0 0 1.4rem; color: var(--ink); }

/* ---------- Footer ---------- */
footer.site-footer {
    background: var(--navy-deep);
    color: #C9D2DA;
    padding: 3.5rem 0 2rem;
    margin-top: 5rem;
}

footer.site-footer h5 {
    color: var(--white);
    font-family: "Fraunces", Georgia, serif;
    font-size: 1.15rem;
    margin-bottom: 1rem;
}

footer.site-footer a { color: #C9D2DA; }
footer.site-footer a:hover { color: var(--amber-soft); }

footer.site-footer ul { list-style: none; padding: 0; margin: 0; }
footer.site-footer li { margin-bottom: .5rem; }

footer.site-footer .footer-base {
    border-top: 1px solid rgba(255, 255, 255, .12);
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    font-size: .85rem;
    color: #8FA0AF;
}

/* ---------- Utility ---------- */
.kicker { color: var(--amber); font-weight: 600; }

@media (max-width: 767px) {
    .hero-split { padding: 3rem 0; text-align: left; }
    .hero-split .figure-frame { margin-top: 2rem; }
    .panel { padding: 1.6rem; }
}