:root{
	--transition:   .2s cubic-bezier(.4,0,.2,1);
}

/* ── Header ──────────────────────────────────────────────── */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: .625rem;
    color: var(--text-main);
    letter-spacing: -.01em;
}

.logo-icon {
    width: 34px;
    height: 34px;
    background: var(--accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: .8rem;
}

span.material-symbols-outlined {
    vertical-align: middle;
	margin-right: 6px;
}

/* Badge limite */
.limit-badge {
    font-size: .8rem;
    font-weight: 500;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    letter-spacing: .01em;
    text-align: center;
}
.limit-badge.warning { background: #fef3c7; color: #92400e; border-color: #fcd34d;padding: 6px 12px;
    border-radius: 32px; }
.limit-badge.danger  { background: #fee2e2; color: #991b1b; border-color: #fca5a5; padding: 6px 12px;
    border-radius: 32px;}

/* ── Layout principale ───────────────────────────────────── */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 4rem 2rem 6rem;
    max-width: 860px;
    margin: 0 auto;
    width: 100%;
}

/* ── Hero text ───────────────────────────────────────────── */
.title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    font-weight: 900;
    line-height: 1.1;
    text-align: center;
    color: var(--text-main);
    letter-spacing: -.03em;
    margin-bottom: 1rem;
}

.title .accent-word {
    color: var(--accent);
}

.subtitle {
    color: var(--text-sub);
    margin-bottom: 3rem;
    text-align: center;
    font-size: 1.05rem;
    /* font-weight: 300; */
    max-width: 480px;
}

/* ── Input container ─────────────────────────────────────── */
.input-container {
    width: 100%;
    background: #f8f8f8;
    border-radius: 16px;
    box-shadow: 0px 0px 82px #d3d3d3;
    border: 1.5px solid #d9d9d9;
    overflow: hidden;
    transition: box-shadow var(--transition), border-color var(--transition);
}

.input-container:focus-within {
    box-shadow: var(--shadow-lg);
    border-color: var(--border-focus);
}

.input-wrapper { padding: 1.5rem 1.75rem; }

textarea {
    width: 100%;
    border: none;
    outline: none;
    font-size: 1rem;
    line-height: 1.7;
    resize: none;
    min-height: 170px;
    font-family: var(--font-body);
    color: var(--text-main);
    background: transparent;
    font-weight: 400;
}

textarea::placeholder { color: var(--text-muted); }

.input-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.75rem;
    background: var(--bg);
    border-top: 1px solid var(--border);
    gap: 1rem;
}

/* Chip suggerimenti */
.suggestions {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
}

.suggestion-chip {
    padding: .35rem .875rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 9999px;
    font-size: .8rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
    color: var(--text-sub);
    user-select: none;
}

.suggestion-chip:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    transform: translateY(-1px);
}

/* Bottone genera */
.submit-btn {
    background: #6822ff;
    color: white;
    border: none;
    padding: .75rem 1.625rem;
    border-radius: 32px;
    font-weight: 600;
    font-size: .9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: .5rem;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    white-space: nowrap;
    letter-spacing: .01em;
}

.submit-btn:hover:not(:disabled) {
    background: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 88, 10, .35);
}

.submit-btn:active:not(:disabled) {
    transform: translateY(0);
}

.submit-btn:disabled {
    opacity: .45;
    cursor: not-allowed;
}

/* ── Loading ─────────────────────────────────────────────── */
.loading {
    display: none;
    align-items: center;
    gap: .875rem;
    color: var(--text-sub);
    font-size: .875rem;
    margin-top: 1.75rem;
}

.loading.visible { display: flex; }

.loading-dots {
    display: flex;
    gap: .3rem;
}

.loading-dots span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    animation: bounce 1.2s ease-in-out infinite;
}

.loading-dots span:nth-child(2) { animation-delay: .2s; }
.loading-dots span:nth-child(3) { animation-delay: .4s; }

@keyframes bounce {
    0%, 80%, 100% { transform: translateY(0); opacity: .4; }
    40%           { transform: translateY(-6px); opacity: 1; }
}

/* ── Errore ──────────────────────────────────────────────── */
.error-message {
    background: #fee2e2;
    color: #991b1b;
    padding: .875rem 1.25rem;
    border-radius: var(--radius-sm);
    margin-top: 1.25rem;
    display: none;
    font-size: .875rem;
    border-left: 3px solid #ef4444;
    width: 100%;
}

.error-message.visible { display: block; }

/* ── Output ──────────────────────────────────────────────── */
.output-container {
    width: 100%;
    margin-top: 2.5rem;
    display: none;
    animation: fadeSlideUp .35s cubic-bezier(.4,0,.2,1) forwards;
}

.output-container.visible { display: block; }

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: .875rem;
}

.output-title {
    font-weight: 600;
    color: var(--text-sub);
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .1em;
}

.output-actions { display: flex; gap: .5rem; }

.action-btn {
    padding: .45rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 32px;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: .8rem;
    font-weight: 500;
    transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
    display: flex;
    align-items: center;
    gap: .375rem;
    color: var(--text-sub);
}

.action-btn:hover {
    background: #6822ff;
    border-color: var(--text-main);
    color: white;
    transform: translateY(-1px);
}

/* Contenuto generato con rendering markdown */
.output-content {
    background: #f1f1f1;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 2.25rem 2.5rem;
    font-size: 1.0125rem;
    line-height: 1.85;
    color: var(--text-main);
}

.output-content h1,
.output-content h2,
.output-content h3 {
    font-family: var(--font-display);
    font-weight: 700;
    margin: 1.5rem 0 .75rem;
    color: var(--text-main);
    letter-spacing: -.02em;
}
.output-content h1 { font-size: 1.7rem; }
.output-content h2 { font-size: 1.35rem; }
.output-content h3 { font-size: 1.1rem; }

.output-content p  { margin-bottom: 1rem; }
.output-content ul { padding-left: 1.5rem; margin-bottom: 1rem; }
.output-content li { margin-bottom: .4rem; }

.output-content strong { font-weight: 600; }
.output-content em     { font-style: italic; color: var(--text-sub); }

/* ── Footer ──────────────────────────────────────────────── */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-sub);
    font-size: .8rem;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.footer a { color: var(--accent); text-decoration: none; }
.footer a:hover { text-decoration: underline; }



/* ── CTA Bubble ──────────────────────────────────────────── */
.cta-bubble {
    display: flex;
    align-items: flex-start;
    gap: .875rem;
    margin-top: 1.25rem;
    width: 100%;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity .4s cubic-bezier(.4,0,.2,1), transform .4s cubic-bezier(.4,0,.2,1);
    pointer-events: none;
}
 
.cta-bubble.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
 
.cta-bubble-avatar {
    flex-shrink: 0;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: .25rem;
}
 
.cta-bubble-body {
    background: #f1f1f1;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.1rem 1.4rem;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}
 
.cta-bubble-text {
    font-size: .95rem;
    color: var(--text-main);
    line-height: 1.4;
    margin: 0;
}
 
.cta-bubble-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    background: var(--accent);
    color: white;
    text-decoration: none;
    padding: .55rem 1.25rem;
    border-radius: 32px;
    font-size: .875rem;
    font-weight: 600;
    white-space: nowrap;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    letter-spacing: .01em;
}
 
.cta-bubble-btn:hover {
    background: #212121;
    transform: translateY(-1px);
    box-shadow: 0 0px 32px #6822ff70;
}
 
@media (max-width: 640px) {
    .cta-bubble-body { flex-direction: column; align-items: flex-start; gap: .75rem; }
}


/* ── Cronologia ──────────────────────────────────────────── */
 
/* Bottone toggle nell'header */
.history-toggle-btn {
    display: flex;
    align-items: center;
    gap: .45rem;
    padding: .45rem 1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 9999px;
    font-family: var(--font-body);
    font-size: .8rem;
    font-weight: 500;
    color: var(--text-sub);
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}
 
.history-toggle-btn:hover,
.history-toggle-btn[aria-expanded="true"] {
    background: #212121;
    color: white;
}
 
.history-toggle-btn .history-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    background: var(--accent);
    color: white;
    border-radius: 9999px;
    font-size: .7rem;
    font-weight: 700;
    padding: 0 4px;
}
 
/* Pannello a scorrimento sotto l'header */
.history-panel {
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s cubic-bezier(.4,0,.2,1);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}
 
.history-panel.open {
    max-height: 320px;
}
 
.history-panel-inner {
    padding: 1rem 2.5rem 1.25rem;
}
 
.history-panel-title {
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--text-muted);
    margin-bottom: .75rem;
}
 
/* Lista voci */
.history-list {
    display: flex;
    flex-direction: column;
    gap: .35rem;
    max-height: 220px;
    overflow-y: auto;
    /* scrollbar sottile */
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}
 
.history-list::-webkit-scrollbar       { width: 4px; }
.history-list::-webkit-scrollbar-track { background: transparent; }
.history-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 9999px; }
 
.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: .6rem .875rem;
    background: var(--bg);
    border: 1px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    text-align: left;
    transition: background var(--transition), border-color var(--transition);
    width: 100%;
}
 
.history-item:hover {
    background: var(--accent-light);
    border-color: var(--accent);
}
 
.history-item.active {
    background: var(--accent-light);
    border-color: var(--accent);
}
 
.history-item-label {
    font-size: .875rem;
    color: var(--text-main);
    font-weight: 400;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
 
.history-item.active .history-item-label {
    font-weight: 600;
    color: var(--accent-dark);
}
 
.history-item-time {
    font-size: .75rem;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}
 
.history-empty {
    font-size: .875rem;
    color: var(--text-muted);
    padding: .5rem .25rem;
}
 
@media (max-width: 640px) {
    .history-panel-inner { padding: 1rem 1.25rem; }
    .history-toggle-btn span:not(.history-count) { display: none; } /* mostra solo l'icona */
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 640px) {
    .header { padding: 1rem 1.25rem; }
    .main   { padding: 2.5rem 1.25rem 4rem; }

    .title  { font-size: 2rem; }

    .input-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .suggestions   { justify-content: center; }
    .submit-btn    { justify-content: center; }

    .output-content { padding: 1.5rem; }
}