/**
 * SPIEGATO — Design System & Main Stylesheet
 * Digital Editorial Magazine (SEO + Google Discover)
 */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;0,6..72,700;1,6..72,400&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    --font-editorial: 'Newsreader', Georgia, Cambria, 'Times New Roman', Times, serif;
    --font-ui: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

    /* Palette: Pure & Warm Off-White Editorial */
    --color-bg: #FFFFFF;
    --color-bg-subtle: #F9FAFB;
    --color-bg-muted: #F3F4F6;
    
    --color-text-main: #111827;
    --color-text-body: #2B2D42;
    --color-text-muted: #6B7280;
    --color-text-light: #9CA3AF;
    
    --color-accent: #E11D48;
    --color-accent-hover: #BE123C;
    --color-accent-subtle: #FFF1F2;

    --color-border: #E5E7EB;
    --color-border-subtle: #F3F4F6;

    --container-width: 1240px;
    --header-height: 72px;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-ui);
    color: var(--color-text-body);
    background-color: var(--color-bg);
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

img, svg, picture {
    display: block;
    max-width: 100%;
    height: auto;
}

button, input, select, textarea {
    font: inherit;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* Top Announcement / Claim Bar */
.top-bar {
    background-color: var(--color-text-main);
    color: #FFFFFF;
    font-size: 0.8125rem;
    padding: 0.4rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-claim {
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: 0.02em;
}

.top-bar-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-accent);
    border-radius: 50%;
    display: inline-block;
}

.top-bar-date {
    color: var(--color-text-light);
    font-size: 0.75rem;
    text-transform: capitalize;
}

/* Site Header */
.site-header {
    background-color: var(--color-bg);
    border-bottom: 2px solid var(--color-text-main);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-link {
    display: inline-flex;
    align-items: baseline;
    font-size: 2.25rem;
    font-weight: 900;
    letter-spacing: -0.05em;
    color: var(--color-text-main);
    line-height: 1;
}

.logo-link .logo-dot {
    color: var(--color-accent);
}

.header-tagline {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-left: 1px solid var(--color-border);
    padding-left: 0.75rem;
    margin-left: 0.75rem;
    display: none;
}

@media (min-width: 900px) {
    .header-tagline {
        display: block;
    }
}

/* Desktop Navigation */
.desktop-nav {
    display: none;
}

@media (min-width: 1024px) {
    .desktop-nav {
        display: flex;
        align-items: center;
        gap: 1.25rem;
    }

    .nav-link {
        font-size: 0.9375rem;
        font-weight: 600;
        color: var(--color-text-main);
        padding: 0.5rem 0;
        position: relative;
    }

    .nav-link:hover, .nav-link.active {
        color: var(--color-accent);
    }

    .nav-link.active::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        right: 0;
        height: 2px;
        background-color: var(--color-accent);
    }
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--color-text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.btn-icon:hover {
    background-color: var(--color-bg-muted);
    color: var(--color-accent);
}

.mobile-menu-btn {
    display: flex;
}

@media (min-width: 1024px) {
    .mobile-menu-btn {
        display: none;
    }
}

/* Mobile Navigation Drawer */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(17, 24, 39, 0.6);
    backdrop-filter: blur(2px);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-nav-overlay.open {
    opacity: 1;
    visibility: visible;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    max-width: 85%;
    height: 100%;
    background: #FFFFFF;
    z-index: 201;
    padding: 1.5rem;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
}

.mobile-nav-overlay.open .mobile-drawer {
    transform: translateX(0);
}

.mobile-drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
}

.mobile-nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mobile-nav-link {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text-main);
    display: block;
    padding: 0.35rem 0;
}

.mobile-nav-link:hover {
    color: var(--color-accent);
}

/* Search Dropdown / Bar */
.search-bar-container {
    background-color: var(--color-bg-subtle);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
    display: none;
}

.search-bar-container.open {
    display: block;
}

.search-form {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    max-width: 700px;
    margin: 0 auto;
}

.search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    outline: none;
}

.search-input:focus {
    border-color: var(--color-text-main);
}

.search-submit-btn {
    background-color: var(--color-text-main);
    color: #FFFFFF;
    border: none;
    padding: 0.75rem 1.5rem;
    font-weight: 700;
    font-size: 0.9375rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.search-submit-btn:hover {
    background-color: var(--color-accent);
}

/* Category & Type Badges */
.category-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.category-badge:hover {
    text-decoration: underline;
}

.type-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.6875rem;
    font-weight: 800;
    text-transform: uppercase;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
    margin-right: 0.5rem;
}

.type-breaking {
    background-color: #FEE2E2;
    color: #991B1B;
}

.type-trending {
    background-color: #FEF3C7;
    color: #92400E;
}

.type-evergreen {
    background-color: #E0E7FF;
    color: #3730A3;
}

/* Editorial Metadata */
.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.meta-author {
    font-weight: 600;
    color: var(--color-text-main);
}

.meta-divider {
    color: var(--color-border);
}

.reading-time {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

/* Section Titles */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: 2px solid var(--color-text-main);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: 1.375rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    color: var(--color-text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.section-link:hover {
    color: var(--color-accent);
}

/* HERO SECTION */
.hero-section {
    padding: 2rem 0;
    border-bottom: 1px solid var(--color-border);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 7fr 5fr;
    }
}

.hero-main-card {
    display: flex;
    flex-direction: column;
}

.hero-image-link {
    display: block;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16 / 9;
    background-color: var(--color-bg-muted);
    border-radius: var(--radius-sm);
    margin-bottom: 1.25rem;
}

.hero-image-link img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.hero-image-link:hover img {
    transform: scale(1.02);
}

.hero-title {
    font-family: var(--font-editorial);
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--color-text-main);
    margin-bottom: 0.875rem;
}

.hero-title a:hover {
    color: var(--color-accent);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 2.75rem;
    }
}

.hero-excerpt {
    font-size: 1.0625rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-bottom: 1.25rem;
}

/* Secondary Hero Column */
.hero-secondary-col {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.hero-side-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 1rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border-subtle);
}

@media (min-width: 480px) {
    .hero-side-item {
        grid-template-columns: 130px 1fr;
    }
}

.hero-side-thumb {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: var(--radius-sm);
    background-color: var(--color-bg-muted);
}

.hero-side-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.hero-side-thumb:hover img {
    transform: scale(1.03);
}

.hero-side-title {
    font-family: var(--font-editorial);
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text-main);
    margin-bottom: 0.35rem;
}

.hero-side-title a:hover {
    color: var(--color-accent);
}

/* TRENDING / SE NE PARLA SECTION */
.trending-section {
    padding: 2.5rem 0;
    background-color: var(--color-bg-subtle);
    border-bottom: 1px solid var(--color-border);
}

.trending-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .trending-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .trending-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.trending-card {
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.trending-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
}

.trending-card-thumb {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: var(--color-bg-muted);
}

.trending-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.trending-card-content {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.trending-card-title {
    font-family: var(--font-editorial);
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text-main);
    margin-bottom: 0.5rem;
}

.trending-card-title a:hover {
    color: var(--color-accent);
}

.trending-card-excerpt {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.45;
    margin-bottom: 1rem;
    flex: 1;
}

/* TWO COLUMNS LAYOUT: LATEST ARTICLES & MOST READ */
.main-editorial-layout {
    padding: 3rem 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 1024px) {
    .main-editorial-layout {
        grid-template-columns: 8fr 4fr;
    }
}

/* LATEST EXPLANATIONS LIST */
.latest-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.latest-item {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}

@media (min-width: 600px) {
    .latest-item {
        grid-template-columns: 220px 1fr;
    }
}

.latest-thumb {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: var(--radius-sm);
    background-color: var(--color-bg-muted);
}

.latest-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.latest-thumb:hover img {
    transform: scale(1.03);
}

.latest-content {
    display: flex;
    flex-direction: column;
}

.latest-title {
    font-family: var(--font-editorial);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-main);
    margin-bottom: 0.5rem;
}

.latest-title a:hover {
    color: var(--color-accent);
}

.latest-excerpt {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: 0.875rem;
    line-height: 1.5;
}

/* MOST READ SIDEBAR (LE PIÙ LETTE) */
.most-read-card {
    background: #FFFFFF;
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    border-radius: var(--radius-sm);
}

.most-read-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.most-read-item {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 1rem;
    align-items: baseline;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--color-border-subtle);
}

.most-read-item:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.rank-number {
    font-family: var(--font-editorial);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-text-light);
    line-height: 1;
    font-style: italic;
}

.most-read-title {
    font-family: var(--font-ui);
    font-size: 0.9375rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--color-text-main);
    margin-bottom: 0.35rem;
}

.most-read-title a:hover {
    color: var(--color-accent);
}

/* CATEGORY BLOCK SECTIONS */
.category-blocks-section {
    padding: 2.5rem 0;
    border-top: 1px solid var(--color-border);
}

.category-block {
    margin-bottom: 3.5rem;
}

.category-block:last-child {
    margin-bottom: 1rem;
}

.category-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Footer */
.site-footer {
    background-color: #0F172A;
    color: #F8FAFC;
    padding: 4rem 0 2rem;
    margin-top: 4rem;
    border-top: 4px solid var(--color-accent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer-brand .logo-link {
    color: #FFFFFF;
    font-size: 2rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.footer-claim {
    font-size: 1.0625rem;
    font-weight: 600;
    color: #E2E8F0;
    margin-bottom: 0.75rem;
}

.footer-desc {
    font-size: 0.875rem;
    color: #94A3B8;
    line-height: 1.6;
    max-width: 480px;
}

.footer-heading {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #CBD5E1;
    margin-bottom: 1.25rem;
    border-left: 2px solid var(--color-accent);
    padding-left: 0.5rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.footer-link {
    font-size: 0.875rem;
    color: #94A3B8;
}

.footer-link:hover {
    color: #FFFFFF;
    padding-left: 4px;
}

.footer-powered-by {
    margin-top: 1rem;
    text-align: right;
    font-size: 0.8125rem;
    color: #94A3B8;
}

.footer-powered-by a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.footer-powered-by a:hover,
.footer-powered-by a:focus-visible {
    color: #FFFFFF;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    font-size: 0.8125rem;
    color: #64748B;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}