/* ============================================================
   Design system — palette nautica (navy + oro), tipografia netta.
   Le variabili sono il punto unico di verità: cambiarle qui basta
   a ridipingere pulsanti, badge, link e sfondi in tutto il sito.
   ============================================================ */
:root {
    --mag-navy: #0F2540;
    --mag-navy-dark: #081526;
    --mag-blue: #1B4B7A;
    --mag-gold: #C89B3C;
    --mag-gold-dark: #A87F2B;
    --mag-bg-soft: #F6F7FA;
    --mag-text: #1B2430;
    --mag-text-muted: #5B6472;
    --mag-border: #E4E7EC;
    --mag-radius: .5rem;
    --mag-shadow: 0 4px 20px rgba(15, 37, 64, .08);
    --mag-shadow-lg: 0 16px 48px rgba(15, 37, 64, .16);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    color: var(--mag-text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -.02em;
    color: var(--mag-navy);
}

h1, .display-4, .display-5, .display-6 {
    font-weight: 800;
}

p {
    color: var(--mag-text);
}

a {
    color: var(--mag-blue);
}

a:hover {
    color: var(--mag-navy);
}

/* ---- Bottoni e link Bootstrap: riallineati alla palette ---- */
.btn-primary {
    --bs-btn-bg: var(--mag-navy);
    --bs-btn-border-color: var(--mag-navy);
    --bs-btn-hover-bg: var(--mag-navy-dark);
    --bs-btn-hover-border-color: var(--mag-navy-dark);
    --bs-btn-active-bg: var(--mag-navy-dark);
    --bs-btn-active-border-color: var(--mag-navy-dark);
    --bs-btn-focus-shadow-rgb: 15, 37, 64;
    font-weight: 600;
    letter-spacing: .01em;
    padding-inline: 1.35rem;
    border-radius: var(--mag-radius);
}

.btn-outline-secondary {
    --bs-btn-color: var(--mag-navy);
    --bs-btn-border-color: var(--mag-border);
    --bs-btn-hover-bg: var(--mag-navy);
    --bs-btn-hover-border-color: var(--mag-navy);
    font-weight: 600;
    border-radius: var(--mag-radius);
}

.btn-outline-primary {
    --bs-btn-color: var(--mag-navy);
    --bs-btn-border-color: var(--mag-navy);
    --bs-btn-hover-bg: var(--mag-navy);
    --bs-btn-hover-border-color: var(--mag-navy);
    font-weight: 600;
    border-radius: var(--mag-radius);
}

.text-primary {
    color: var(--mag-gold-dark) !important;
}

.bg-primary-subtle {
    background-color: rgba(200, 155, 60, .14) !important;
}

.bg-secondary-subtle {
    background-color: rgba(15, 37, 64, .06) !important;
}

.text-secondary {
    color: var(--mag-navy) !important;
}

.badge {
    font-weight: 600;
    letter-spacing: .01em;
    padding: .4em .75em;
    border-radius: 999px;
}

.accordion-button:not(.collapsed) {
    color: var(--mag-navy);
    background-color: rgba(200, 155, 60, .1);
}

.accordion-button:focus {
    box-shadow: 0 0 0 .2rem rgba(15, 37, 64, .15);
}

.breadcrumb-item.active {
    color: var(--mag-text-muted);
}

/* ---- Header ---- */
header.border-bottom {
    border-bottom: 1px solid var(--mag-border) !important;
}

.navbar-brand {
    font-weight: 800;
    letter-spacing: -.01em;
    color: var(--mag-navy) !important;
    font-size: 1.4rem;
}

.navbar-brand i {
    color: var(--mag-gold);
    margin-right: .4rem;
}

.navbar-nav .nav-link, .navbar .nav-item a {
    font-weight: 500;
    color: var(--mag-text);
}

/* ---- Hero ---- */
.hero-band {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--mag-navy) 0%, var(--mag-navy-dark) 100%);
    color: #fff;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    padding: 4.5rem 1rem;
}

.hero-band::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 82% 15%, rgba(200, 155, 60, .28), transparent 55%);
    pointer-events: none;
}

.hero-band .container {
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: .14em;
    font-size: .78rem;
    font-weight: 700;
    color: var(--mag-gold);
    margin-bottom: .75rem;
}

.hero-band h1 {
    color: #fff;
    font-size: clamp(2.1rem, 4.5vw, 3.25rem);
}

.hero-band p.lead {
    color: rgba(255, 255, 255, .82);
}

.hero {
    padding: 3rem 0;
}

/* ---- Contenuti ---- */
.answer-summary {
    background: var(--mag-bg-soft);
    border-left: 4px solid var(--mag-gold);
    padding: 1rem 1.25rem;
    border-radius: .25rem;
    margin-bottom: 1.5rem;
}

.card-pillar, .card-article {
    height: 100%;
    border: 1px solid var(--mag-border);
    border-radius: var(--mag-radius);
    transition: transform .18s ease-in-out, box-shadow .18s ease-in-out;
}

.card-pillar:hover, .card-article:hover {
    transform: translateY(-3px);
    box-shadow: var(--mag-shadow);
}

.byline {
    color: var(--mag-text-muted);
    font-size: .9rem;
}

.byline-flex {
    display: flex;
    align-items: center;
    gap: .6rem;
}

img.author-avatar {
    object-fit: cover;
    flex-shrink: 0;
}

.author-avatar-fallback {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: var(--mag-navy);
    color: #fff;
    font-weight: 600;
    letter-spacing: .02em;
}

.author-card {
    background: var(--mag-bg-soft);
    border-radius: var(--mag-radius);
    padding: 1.25rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    background: var(--mag-bg-soft);
    color: var(--mag-navy);
    margin-right: .4rem;
    text-decoration: none;
    transition: background .15s ease-in-out, color .15s ease-in-out;
}

.social-link:hover {
    background: var(--mag-navy);
    color: #fff;
}

.social-link-sm {
    width: 1.9rem;
    height: 1.9rem;
    font-size: .85rem;
}

.card-thumb {
    width: 100%;
    aspect-ratio: 1200 / 630;
    object-fit: cover;
}

/* Widget chat */
.chat-widget {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 1050;
}

.chat-toggle-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--mag-gold);
    color: var(--mag-navy-dark);
    border: none;
    box-shadow: var(--mag-shadow-lg);
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform .15s ease-in-out;
}

.chat-toggle-btn:hover {
    transform: scale(1.06);
    background: var(--mag-gold-dark);
}

.chat-panel {
    position: fixed;
    bottom: 5.5rem;
    right: 1.5rem;
    width: 340px;
    max-width: calc(100vw - 2rem);
    height: 460px;
    max-height: calc(100vh - 8rem);
    background: #fff;
    border-radius: .75rem;
    box-shadow: var(--mag-shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-header {
    background: var(--mag-navy);
    color: #fff;
    padding: .75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: .95rem;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: .5rem;
    background: var(--mag-bg-soft);
}

.chat-message {
    max-width: 85%;
    padding: .5rem .75rem;
    border-radius: .75rem;
    font-size: .875rem;
    line-height: 1.4;
    white-space: pre-wrap;
}

.chat-message-user {
    align-self: flex-end;
    background: var(--mag-navy);
    color: #fff;
    border-bottom-right-radius: .2rem;
}

.chat-message-bot {
    align-self: flex-start;
    background: #fff;
    border: 1px solid var(--mag-border);
    color: var(--mag-text);
    border-bottom-left-radius: .2rem;
}

.chat-message-typing {
    opacity: .6;
}

.chat-input-form {
    display: flex;
    gap: .5rem;
    padding: .75rem;
    border-top: 1px solid var(--mag-border);
    background: #fff;
}

/* ---- Footer ---- */
footer a.text-white-50:hover {
    color: var(--mag-gold) !important;
}