/*
 * Alfabeto Temático — at-style.css v2.0.0
 * Design moderno dark con griglia card + foto destacada
 */

/* ══════════════════════════════════════════════
   Variables — Dark Mode
══════════════════════════════════════════════ */
.at-widget {
    --at-bg          : #0f0f13;
    --at-surface     : #1a1a22;
    --at-surface-2   : #22222e;
    --at-border      : #2e2e3e;
    --at-text        : #f0eee8;
    --at-text-muted  : #8a8799;
    --at-accent      : #7c6af7;
    --at-accent-2    : #f7916a;
    --at-accent-glow : rgba(124,106,247,.18);
    --at-radius-sm   : 6px;
    --at-radius      : 12px;
    --at-radius-lg   : 18px;
    --at-font-display: 'Georgia', 'Times New Roman', serif;
    --at-font-ui     : system-ui, -apple-system, sans-serif;
    --at-font-mono   : 'Courier New', monospace;
    --at-transition  : 200ms cubic-bezier(.4,0,.2,1);
    --at-shadow      : 0 4px 24px rgba(0,0,0,.4);
    --at-shadow-hover: 0 8px 32px rgba(0,0,0,.6);

    font-family  : var(--at-font-ui);
    color        : var(--at-text);
    background   : var(--at-bg);
    max-width    : 1080px;
    margin       : 2.5rem auto;
    padding      : 2rem;
    border-radius: var(--at-radius-lg);
    box-sizing   : border-box;
}

*, *::before, *::after { box-sizing: inherit; }

.at-title {
    font-family   : var(--at-font-display);
    font-size     : clamp(1.4rem, 3vw, 2rem);
    font-weight   : 700;
    letter-spacing: -.03em;
    margin        : 0 0 1.75rem;
    line-height   : 1.15;
    background    : linear-gradient(135deg, var(--at-text) 40%, var(--at-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Ricerca */
.at-search-bar   { position: relative; margin-bottom: 1.5rem; }

.at-search-input {
    width        : 100%;
    padding      : .75rem 2.8rem .75rem 1rem;
    font-family  : var(--at-font-ui);
    font-size    : .9rem;
    background   : var(--at-surface);
    border       : 1.5px solid var(--at-border);
    border-radius: var(--at-radius);
    color        : var(--at-text);
    outline      : none;
    transition   : border-color var(--at-transition), box-shadow var(--at-transition);
    -webkit-appearance: none;
}
.at-search-input:focus      { border-color: var(--at-accent); box-shadow: 0 0 0 3px var(--at-accent-glow); }
.at-search-input::placeholder { color: var(--at-text-muted); }

.at-search-clear {
    position: absolute; right: 1rem; top: 50%; transform: translateY(-50%);
    cursor: pointer; color: var(--at-text-muted); font-size: .75rem;
    opacity: 0; pointer-events: none;
    transition: opacity var(--at-transition), color var(--at-transition);
}
.at-search-clear.visible { opacity: 1; pointer-events: auto; }
.at-search-clear:hover   { color: var(--at-accent-2); }

/* Alfabeto */
.at-alphabet {
    display: flex; flex-wrap: wrap; gap: 4px;
    margin-bottom: 2rem; padding: 1rem;
    background: var(--at-surface); border: 1px solid var(--at-border); border-radius: var(--at-radius);
}

.at-letter {
    display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
    min-width: 2.2rem; height: 2.2rem; padding: 0 .3rem;
    font-family: var(--at-font-mono); font-size: .75rem; font-weight: 700; letter-spacing: .04em;
    background: transparent; border: 1.5px solid transparent; border-radius: var(--at-radius-sm);
    cursor: pointer; color: var(--at-text-muted); line-height: 1;
    transition: background var(--at-transition), border-color var(--at-transition), color var(--at-transition), transform 100ms;
}
.at-letter:hover:not(.at-letter--disabled) {
    background: var(--at-accent-glow); border-color: var(--at-accent); color: var(--at-accent); transform: translateY(-2px);
}
.at-letter.active {
    background: var(--at-accent); border-color: var(--at-accent); color: #fff; box-shadow: 0 2px 12px var(--at-accent-glow);
}
.at-letter--disabled  { color: #3a3a4a; cursor: default; pointer-events: none; }
.at-letter--all       { min-width: 3.2rem; font-family: var(--at-font-ui); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; }
.at-letter-count      { font-size: .48rem; font-family: var(--at-font-ui); font-weight: 400; opacity: .6; margin-top: 2px; line-height: 1; letter-spacing: 0; }
.at-letter.active .at-letter-count { opacity: .9; }

/* Risultati */
.at-results     { min-height: 80px; }
.at-loading     { display: flex; align-items: center; gap: .6rem; color: var(--at-text-muted); font-size: .85rem; padding: 1.5rem 0; }
.at-spinner     { display: inline-block; width: 1.1rem; height: 1.1rem; border: 2px solid var(--at-border); border-top-color: var(--at-accent); border-radius: 50%; animation: at-spin .7s linear infinite; flex-shrink: 0; }
@keyframes at-spin { to { transform: rotate(360deg); } }
.at-no-results  { color: var(--at-text-muted); font-size: .9rem; padding: 1.5rem 0; text-align: center; }
.at-list        { list-style: none; margin: 0; padding: 0; }

.at-results-count { font-size: .75rem; color: var(--at-text-muted); margin-bottom: 1rem; letter-spacing: .03em; }
.at-results-count strong { color: var(--at-accent); font-weight: 600; }

/* Gruppi */
.at-group        { margin-bottom: 2.5rem; }
.at-group-letter {
    display: inline-block; font-family: var(--at-font-display); font-size: 2.5rem; font-weight: 700;
    color: var(--at-accent); line-height: 1; margin-bottom: .75rem; padding-bottom: .4rem;
    border-bottom: 2px solid var(--at-border); width: 100%;
}

/* Lista orizzontale — foto piccola sx + titolo dx */
.at-group-list, .at-grid {
    list-style: none; margin: 0; padding: 0;
    display: flex; flex-direction: column; gap: 6px;
}

/* Card animazione */
.at-item { opacity: 0; transform: translateY(10px); animation: at-fadeup 280ms forwards; animation-play-state: paused; }
.at-item--visible { animation-play-state: running; }
@keyframes at-fadeup { to { opacity: 1; transform: translateY(0); } }

/* Card link — layout orizzontale */
.at-item-link {
    display: flex; flex-direction: row; align-items: center;
    text-decoration: none; color: var(--at-text);
    background: var(--at-surface); border: 1px solid var(--at-border);
    border-radius: var(--at-radius-sm); overflow: hidden;
    transition: background var(--at-transition), border-color var(--at-transition), transform var(--at-transition);
    gap: 0;
}
.at-item-link:hover {
    background: var(--at-surface-2); border-color: var(--at-accent);
    transform: translateX(3px); text-decoration: none; color: var(--at-text);
}

/* Thumb piccolo — quadrato 72x72, alta specificità per battere il tema */
.at-widget .at-item-link .at-item-thumb-wrap {
    width: 72px !important; min-width: 72px !important; max-width: 72px !important;
    height: 72px !important; flex-shrink: 0 !important; overflow: hidden !important;
    display: block !important;
}
.at-widget .at-item-link .at-item-thumb-wrap .at-item-thumb {
    width: 72px !important; height: 72px !important;
    min-width: 72px !important; max-width: 72px !important;
    min-height: 72px !important; max-height: 72px !important;
    object-fit: cover !important; display: block !important;
    margin: 0 !important; padding: 0 !important;
    transition: transform 300ms cubic-bezier(.4,0,.2,1);
}
.at-widget .at-item-link:hover .at-item-thumb { transform: scale(1.08); }

.at-widget .at-item-link .at-item-thumb-placeholder {
    width: 72px !important; min-width: 72px !important; height: 72px !important;
    flex-shrink: 0 !important;
    background: linear-gradient(135deg, var(--at-surface-2) 0%, #1e1e2e 100%);
    display: flex !important; align-items: center; justify-content: center;
    font-family: var(--at-font-display); font-size: 1.4rem; font-weight: 700;
    color: var(--at-border);
}

/* Body card */
.at-item-body {
    padding: .5rem .85rem; flex: 1;
    display: flex; flex-direction: row; align-items: center;
    justify-content: space-between; gap: .5rem;
}

.at-item-title {
    font-family: var(--at-font-ui); font-size: .875rem; font-weight: 500;
    line-height: 1.35; color: var(--at-text);
    transition: color var(--at-transition);
}
.at-item-link:hover .at-item-title { color: var(--at-accent); }

.at-type-badge {
    align-self: flex-start; font-size: .58rem; font-family: var(--at-font-mono);
    text-transform: uppercase; letter-spacing: .08em;
    background: var(--at-surface-2); border: 1px solid var(--at-border); border-radius: 4px;
    padding: 2px 6px; color: var(--at-text-muted); order: -1;
}

.at-item-arrow {
    width: 13px; height: 13px; margin-top: auto; opacity: 0;
    color: var(--at-accent); align-self: flex-end;
    transition: opacity var(--at-transition), transform var(--at-transition);
}
.at-item-link:hover .at-item-arrow { opacity: 1; transform: translateX(3px); }

mark.at-highlight { background: rgba(247,145,106,.3); color: var(--at-accent-2); border-radius: 2px; padding: 0 2px; }