/* ==========================================
   WELCOME SCREEN - PREMIUM & DISTINCT HIERARCHY
   ========================================== */

.welcome-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    margin: 0;
    width: 100%;
    /* ✅ TRANSITION FOR FADE-OUT */
    transition: opacity 0.3s cubic-bezier(0.2, 0.9, 0.4, 1.1), visibility 0.3s ease;
    opacity: 1;
    visibility: visible;
}

/* ✅ Fade-out state (used before hiding) */
.welcome-screen.fade-out {
    opacity: 0;
    visibility: hidden;
}

.welcome-content {
    max-width: 600px;
    animation: fadeIn 0.6s ease-out;
    margin-bottom: 0.75rem;
}

/* ===== ANIMATION CONTAINER ===== */
#dolphin-animation {
    width: 140px;
    height: 140px;
    margin: 0 auto 0.75rem auto;
    transition: transform 0.2s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    filter: drop-shadow(0 8px 20px rgba(6, 182, 212, 0.3));
}

#dolphin-animation:empty {
    font-size: 5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 4s infinite ease-in-out;
}

/* ===== GREETING LINE (Hey, Name) ===== */
.welcome-content .greeting {
    font-size: 2rem;
    font-weight: 500;
    margin: 0 0 0.1rem 0;
    letter-spacing: -0.3px;
    color: var(--text-primary);
    background: none;
    -webkit-text-fill-color: var(--text-primary);
    opacity: 0.9;
}

/* ===== USERNAME (Cyan Gradient - stands out) ===== */
#welcome-username {
    background: linear-gradient(135deg, #22d3ee, #06b6d4);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    font-size: inherit;
}

/* ===== QUESTION LINE (Bold, Large, Premium Gradient) ===== */
.welcome-content .question {
    font-size: 2.3rem;
    font-weight: 700;
    margin: 0.5rem 0 0.35rem 0;
    line-height: 1.25;
    background: linear-gradient(135deg, #ffffff, #cbd5e1);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

/* ===== SUBTITLE (Subtle, Elegant, with accent border/underline) ===== */
.subtitle {
    color: var(--text-muted, #94a3b8);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: inline-block;
    backdrop-filter: blur(2px);
}

/* Optional: Add a subtle glow to the question on hover */
.welcome-content .question:hover {
    filter: drop-shadow(0 0 8px rgba(6, 182, 212, 0.3));
    transition: filter 0.2s ease;
}

/* ===== INPUT AREA TRANSITION (for smooth slide down) ===== */
.input-area {
    transition: bottom 0.3s cubic-bezier(0.2, 0.9, 0.4, 1.1) !important;
}

/* ===== WELCOME MODE - HIDE HEADER & DISCLAIMER ===== */
body.welcome-mode .chat-header {
    display: none;
}

body.welcome-mode .disclaimer {
    display: none;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ===== DARK MODE ADJUSTMENTS ===== */
@media (prefers-color-scheme: dark) {
    .welcome-content .greeting {
        opacity: 0.85;
    }
    .welcome-content .question {
        background: linear-gradient(135deg, #f1f5f9, #94a3b8);
        background-clip: text;
        -webkit-background-clip: text;
    }
    .subtitle {
        border-top-color: rgba(255, 255, 255, 0.05);
    }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
    .welcome-content,
    #dolphin-animation,
    #dolphin-animation:empty,
    .welcome-screen,
    .input-area {
        animation: none !important;
        transition: none !important;
    }
}