/* =========================================
   1. VARIABILI GLOBALI E RESET BASE (B&W Aesthetic)
   ========================================= */
:root { 
    --primary: #000000; 
    --accent: #000000; 
    --bg: #fafafa; 
    --surface: #ffffff; 
    --border: #eeeeee; 
    --text: #000000; 
    --text-muted: #94a3b8; 
    --danger: #ef4444; 
    --success: #22c55e; 
    --radius: 1.5rem; /* 24px per rounded-3xl */
    --trans: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --chat-user: #000000; 
    --chat-ai: #ffffff;
}

* { 
    box-sizing: border-box; 
    margin: 0; 
    padding: 0; 
    font-family: 'Inter', 'Plus Jakarta Sans', -apple-system, sans-serif; 
    -webkit-tap-highlight-color: transparent;
}

body { 
    background: var(--bg); 
    color: var(--text); 
    font-size: 14px; 
    line-height: 1.5; 
    -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* =========================================
   2. COMPONENTI UNIFICATI (Mobile Only)
   ========================================= */

/* Action Bar Bottom Standard */
.bottom-action-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border);
    z-index: 100;
    display: flex;
    gap: 0.75rem;
}

/* Button Standard h-12 */
.btn-noir {
    height: 3rem; /* 48px - h-12 */
    border-radius: 0.75rem; /* rounded-xl */
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--trans);
    cursor: pointer;
    border: none;
    padding: 0 1.25rem;
    flex: 1;
}

.btn-noir-primary { background: #000; color: #fff; }
.btn-noir-primary:active { transform: scale(0.96); opacity: 0.9; }
.btn-noir-primary:disabled { background: #e2e8f0; color: #94a3b8; cursor: not-allowed; }

.btn-noir-secondary { background: #fff; color: #000; border: 1px solid #000; }
.btn-noir-secondary:active { transform: scale(0.96); background: #f8fafc; }

/* Cards */
.card-noir {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 1.25rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

/* Inputs */
input, select, textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 0.875rem 1rem;
    font-size: 14px;
    outline: none;
    background: #f9fafb;
    transition: var(--trans);
}

input:focus, textarea:focus {
    border-color: #000;
    background: #fff;
}

/* Typography */
.title-xl { font-size: 1.25rem; font-weight: 900; tracking: -0.025em; text-transform: uppercase; }
.label-micro { font-size: 10px; font-weight: 900; text-transform: uppercase; letter-spacing: 0.1em; color: #94a3b8; }

/* =========================================
   3. SPECIFIC PAGE OVERRIDES (Support)
   ========================================= */
.safe-bottom { padding-bottom: calc(5rem + env(safe-area-inset-bottom)); }

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.animate-fade-in { animation: fadeIn 0.3s ease-out forwards; }