/* --- AI OBSERVER THEME SYSTEM --- */
:root {
    /* Palette */
    --bg-deep: #0a0a0a;       /* Nero profondo */
    --bg-card: #111111;       /* Grigio scuro per le card */
    --bg-hover: #161616;
    --text-main: #e0e0e0;
    --text-muted: #888888;
    
    /* Accenti Neon */
    --neon-cyan: #00F3FF;     /* Colore primario */
    --neon-green: #39FF14;    /* Hardware/Status OK */
    --neon-purple: #BD00FF;   /* Analisi/Editorial */
    
    /* Bordi e Glow */
    --border-dim: #333333;
    --border-active: rgba(0, 243, 255, 0.3);
    
    /* Spaziatura */
    --container-width: 1200px;
}

/* Reset & Base */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .mono-font {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    letter-spacing: -0.5px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.2s;
}

/* Layout Wrapper */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* --- HEADER --- */
header {
    border-bottom: 1px solid var(--border-dim);
    padding: 1.2rem 0;
    margin-bottom: 2.5rem;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.2rem;
    flex-wrap: wrap;
}

.logo-block {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.logo-main {
    font-size: 1.1rem;
    text-transform: uppercase;
    color: #ffffff;
}

.logo-main span {
    color: var(--neon-cyan);
}

.logo-sub {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    align-items: center;
    justify-content: flex-end;
}

.nav-links a {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 0.4rem 0.7rem;
    border-radius: 999px;
    border: 1px solid transparent;
}

.nav-links a:hover {
    color: var(--text-main);
    border-color: var(--border-dim);
    background-color: var(--bg-hover);
}

.nav-pill-disabled {
    opacity: 0.7;
    cursor: default;
    border-color: var(--border-dim);
}

.nav-cta {
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
}

.nav-cta:hover {
    background: var(--neon-cyan);
    color: #000;
}

/* --- SEARCH FORM IN HEADER --- */

.search-form {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0.4rem;
}

.search-input {
    background: #101010;
    border-radius: 999px;
    border: 1px solid var(--border-dim);
    padding: 0.35rem 0.8rem;
    color: var(--text-main);
    font-size: 0.8rem;
    min-width: 180px;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-input:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 0 1px rgba(0, 243, 255, 0.4);
}

.search-btn {
    border-radius: 999px;
    border: 1px solid var(--neon-cyan);
    background: transparent;
    color: var(--neon-cyan);
    font-size: 0.75rem;
    font-family: 'JetBrains Mono', monospace;
    padding: 0.3rem 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
}

.search-btn:hover {
    background: var(--neon-cyan);
    color: #000;
}

/* --- HERO --- */

.hero {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1.3fr);
    gap: 2rem;
    margin-bottom: 2.5rem;
    align-items: stretch;
}

.hero-main h1 {
    font-size: 2rem;
    line-height: 1.2;
    margin-bottom: 0.8rem;
}

.hero-main h1 span {
    color: var(--neon-cyan);
}

.hero-main p {
    font-size: 0.98rem;
    color: var(--text-muted);
    max-width: 520px;
    margin-bottom: 1.1rem;
}

.hero-chips {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.hero-chip {
    font-size: 0.8rem;
    font-family: 'JetBrains Mono', monospace;
    border-radius: 999px;
    border: 1px solid var(--border-dim);
    padding: 0.35rem 0.75rem;
    color: var(--text-main);
    background: radial-gradient(circle at left, rgba(0, 243, 255, 0.12), transparent);
}

.hero-chip-secondary {
    background: radial-gradient(circle at left, rgba(189, 0, 255, 0.16), transparent);
    color: var(--text-muted);
}

.hero-side-panel {
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid var(--border-dim);
    padding: 1.1rem 1.3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

.hero-side-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 0.6rem;
}

.hero-list {
    list-style: none;
    font-size: 0.86rem;
    color: var(--text-main);
}

.hero-list li + li {
    margin-top: 0.35rem;
}

/* --- SECTION HEADER --- */

.section-header {
    margin-bottom: 1.4rem;
}

.section-header h2,
.section-header h1 {
    font-size: 1.25rem;
    margin-bottom: 0.3rem;
}

.section-header p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* --- GRID SYSTEM / NEWS GRID --- */

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    padding-bottom: 4rem;
}

/* --- TECH CARD --- */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-dim);
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card:hover {
    border-color: var(--neon-cyan);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 243, 255, 0.1);
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 2px;
    background: var(--neon-cyan);
    opacity: 0;
    transition: 0.2s;
}

.card:hover::before {
    opacity: 1;
}

/* Fix image quality - high quality rendering for photos */
.card img,
article img,
.article-detail img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: auto;
    image-rendering: smooth;
    -ms-interpolation-mode: bicubic;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    -webkit-font-smoothing: antialiased;
    will-change: transform;
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    object-position: center;
}

/* Ensure crisp rendering on high-DPI displays */
@media only screen and (-webkit-min-device-pixel-ratio: 2),
       only screen and (min-resolution: 192dpi) {
    .card img,
    article img,
    .article-detail img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: smooth;
    }
}

/* Disable smoothing during card hover animation to prevent blur */
.card:hover img {
    transform: translateZ(0) scale(1.0001);
    filter: none;
}

.card-tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--neon-cyan);
    border: 1px solid rgba(0, 243, 255, 0.2);
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 0.6rem;
    font-family: 'JetBrains Mono', monospace;
}

.card-tag-secondary {
    color: var(--neon-purple);
    border-color: rgba(189, 0, 255, 0.4);
    margin-left: 0.4rem;
}

.card-tag-ai {
    color: var(--neon-green);
    border-color: rgba(57, 255, 20, 0.4);
    margin-left: 0.4rem;
}

/* Credibility Badges */
.credibility-badge {
    margin-left: 0.4rem;
    font-size: 0.7rem;
    opacity: 0.9;
    font-weight: 600;
}

.credibility-highest {
    /* Official AI Labs - gold/green */
    background: rgba(16, 185, 129, 0.15) !important;
    border-color: #10b981 !important;
    color: #10b981 !important;
}

.credibility-high {
    /* Trusted sources - blue */
    background: rgba(59, 130, 246, 0.15) !important;
    border-color: #3b82f6 !important;
    color: #3b82f6 !important;
}

.credibility-medium {
    /* News sources - purple */
    background: rgba(139, 92, 246, 0.15) !important;
    border-color: #8b5cf6 !important;
    color: #8b5cf6 !important;
}

.credibility-low {
    /* Blogs/aggregators - orange */
    background: rgba(245, 158, 11, 0.15) !important;
    border-color: #f59e0b !important;
    color: #f59e0b !important;
}

.credibility-lowest {
    /* Unverified - red */
    background: rgba(239, 68, 68, 0.15) !important;
    border-color: #ef4444 !important;
    color: #ef4444 !important;
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    color: #fff;
}

.card h3 a:hover {
    color: var(--neon-cyan);
}

.card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    font-size: 0.8rem;
    color: #555;
    font-family: 'JetBrains Mono', monospace;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #222;
    padding-top: 1rem;
    gap: 0.75rem;
}

.card-meta a {
    color: var(--neon-cyan);
    font-size: 0.78rem;
}

.card-meta a:hover {
    color: #ffffff;
}

/* --- BUTTONS GENERICI --- */

.btn-tech {
    background: transparent;
    border: 1px solid var(--neon-cyan);
    color: var(--neon-cyan);
    padding: 0.5rem 1rem;
    font-family: 'JetBrains Mono', monospace;
    text-transform: uppercase;
    font-size: 0.8rem;
    cursor: pointer;
    display: inline-block;
}

.btn-tech:hover {
    background: var(--neon-cyan);
    color: #000;
}

/* --- ARTICLE DETAIL --- */

.article-detail {
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid var(--border-dim);
    padding: 1.6rem 1.8rem;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5);
    margin-bottom: 3rem;
}

.article-header {
    margin-bottom: 1.2rem;
}

.article-title {
    font-size: 1.6rem;
    margin: 0.5rem 0 0.4rem;
}

.badge-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    align-items: center;
}

.meta-article {
    font-size: 0.8rem;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-muted);
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 0.4rem;
}

.article-body {
    margin-top: 1rem;
    font-size: 0.98rem;
    color: var(--text-main);
}

.article-body p {
    margin: 0.4rem 0;
}

/* --- EDITOR COMMENT --- */

.editor-comment {
    margin-top: 1.8rem;
    padding: 1rem 1.2rem;
    border-left: 3px solid var(--neon-purple);
    background: #141414;
    border-radius: 6px;
    font-size: 0.9rem;
}

.editor-comment h2 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--neon-purple);
    margin-bottom: 0.4rem;
}

.editor-comment-empty {
    border-left-color: var(--border-dim);
    color: var(--text-muted);
}

.editor-sign {
    margin-top: 0.6rem;
    font-style: italic;
    color: var(--text-muted);
}

/* --- ADMIN FORM --- */

.admin-form {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    margin-bottom: 3rem;
}

.admin-form label {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.9rem;
}

.admin-form input,
.admin-form textarea {
    background: #101010;
    border-radius: 6px;
    border: 1px solid var(--border-dim);
    padding: 0.5rem 0.7rem;
    color: var(--text-main);
    font: inherit;
}

.admin-form input:focus,
.admin-form textarea:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 0 1px rgba(0, 243, 255, 0.4);
}

.admin-form button {
    margin-top: 0.4rem;
    border-radius: 999px;
    border: 1px solid var(--neon-cyan);
    background: transparent;
    color: var(--neon-cyan);
    font-size: 0.8rem;
    font-family: 'JetBrains Mono', monospace;
    padding: 0.5rem 1.4rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
}

.admin-form button:hover {
    background: var(--neon-cyan);
    color: #000;
}

/* --- FOOTER --- */

footer {
    border-top: 1px solid var(--border-dim);
    padding: 1.2rem 0;
    margin-top: 2rem;
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* --- RESPONSIVE --- */

@media (max-width: 900px) {
    .nav-flex {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        justify-content: flex-start;
    }

    .search-form {
        width: 100%;
        justify-content: flex-start;
    }

    .hero {
        grid-template-columns: minmax(0, 1fr);
    }

    .article-detail {
        padding: 1.3rem 1.2rem;
    }
}