/* --- PREMIUM AI CHAT UI --- */
.hidden {
    display: none !important;
}

#discovery-view,
#conversation-view {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

#discovery-view.fade-out {
    opacity: 0;
    transform: scale(0.95);
    pointer-events: none;
}

/* Discovery View Elements */
.chat-search-wrapper {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(15px);
    border: 1px solid var(--border-color);
    border-radius: 5rem;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.chat-search-wrapper:focus-within {
    border-color: var(--accent-main);
    background: rgba(var(--accent-rgb), 0.05);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 25px 50px rgba(var(--accent-rgb), 0.15);
}

.chat-search-input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 1.25rem 2rem;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-family: inherit;
    outline: none;
}

.search-action-btn {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background: var(--accent-main);
    color: #000;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px var(--accent-glow);
}

.search-action-btn:hover {
    transform: rotate(5deg) scale(1.05);
    box-shadow: 0 8px 25px var(--accent-glow);
}

/* Preset Cards Grid */
.preset-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
    max-width: 1000px;
    margin: 4rem auto 0;
}

.preset-card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 1.5rem;
    padding: 2.5rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: premiumFadeInUp 0.6s ease-out forwards;
}

@keyframes premiumFadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.preset-card:nth-child(2) {
    animation-delay: 0.1s;
}

.preset-card:nth-child(3) {
    animation-delay: 0.2s;
}

.preset-card:nth-child(4) {
    animation-delay: 0.3s;
}

.preset-card:nth-child(5) {
    animation-delay: 0.4s;
}

.preset-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-main);
    background: rgba(var(--accent-rgb), 0.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 20px rgba(var(--accent-rgb), 0.1);
}

.preset-icon {
    width: 60px;
    height: 60px;
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.preset-card:hover .preset-icon {
    background: rgba(var(--accent-rgb), 0.1);
    transform: scale(1.1);
}

.preset-label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

/* Immersive Conversation View */
#conversation-view {
    padding-top: 8rem; /* Better gap from navbar */
    padding-bottom: 4rem;
}

.chat-card.immersive {
    height: calc(100vh - 240px); /* Clean balance */
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 2.5rem;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(40px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    /* Subtle but distinct border */
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.6), 0 0 40px rgba(var(--accent-rgb), 0.05);
}

/* Markdown Formatting */
.chat-message strong {
    color: var(--accent-main);
    font-weight: 700;
}

.chat-message ul {
    margin: 0.5rem 0 0.5rem 1.25rem;
    padding: 0;
    list-style-type: disc;
}

.chat-message li {
    margin-bottom: 0.25rem;
}

@keyframes chatExpand {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.chat-header {
    padding: 1.5rem 2.5rem;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.reset-icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5px;
    border-radius: 8px;
}

.reset-icon-btn:hover {
    color: var(--accent-main);
    background: rgba(var(--accent-rgb), 0.1);
    transform: rotate(45deg);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 2.5rem 3rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    scroll-behavior: smooth;
}

.chat-message {
    padding: 1rem 1.75rem;
    font-size: 0.875rem; /* Cleaner, smaller for premium feel */
    line-height: 1.7; /* Increased for readability */
    max-width: 75%; /* Avoid big slabs */
    border-radius: 1.5rem;
    position: relative;
    animation: messageEntry 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes messageEntry {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.chat-message.bot {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 0.25rem;
    color: var(--text-primary);
}

.chat-message.user {
    align-self: flex-end;
    background: var(--accent-main);
    color: #000;
    font-weight: 600;
    border-bottom-right-radius: 0.25rem;
    box-shadow: 0 8px 30px var(--accent-glow);
}

.chat-footer {
    padding: 2rem 3rem;
    background: rgba(255, 255, 255, 0.01);
}

.quick-prompt-chips {
    margin-bottom: 2rem;
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.quick-chip {
    padding: 0.625rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 3rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.quick-chip:hover {
    border-color: var(--accent-main);
    color: var(--accent-main);
    background: rgba(var(--accent-rgb), 0.1);
    transform: translateY(-2px);
}

.chat-input-wrapper {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 5rem;
    padding: 0.375rem 0.375rem 0.375rem 1.75rem;
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.chat-input-wrapper:focus-within {
    border-color: var(--accent-main);
    background: rgba(var(--accent-rgb), 0.05);
    box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.1);
}

.chat-input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 1rem 0;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
}

.send-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent-main);
    color: #000;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    margin-left: 0.5rem;
}

.send-btn:hover {
    transform: scale(1.1) rotate(-10deg);
    box-shadow: 0 0 15px var(--accent-glow);
}

.send-btn svg {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

/* Light Theme Overrides */
[data-theme="light"] .chat-search-wrapper,
[data-theme="light"] .preset-card,
[data-theme="light"] .chat-card.immersive {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .chat-message.bot {
    background: #fff;
    border-color: rgba(0, 0, 0, 0.05);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

/* Scrollbar Customization */
.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(var(--accent-rgb), 0.2);
    border-radius: 4px;
}

@media (max-width: 1024px) {
    .preset-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

    .chat-card.immersive {
        height: 80vh;
    }

    .chat-messages {
        padding: 2rem;
    }
}

@media (max-width: 640px) {
    .preset-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .chat-card.immersive {
        height: 90vh;
        border-radius: 1.5rem;
    }

    .chat-footer {
        padding: 1.5rem;
    }
}