:root {
    --bg-color: #ffffff; /* White background */
    --bg-sidebar: #faf9f6; /* Warm off-white sidebar background, like Claude */
    --card-bg: #ffffff; /* Premium solid white background */
    --primary: #0055ff; /* Cobalt blue primary accent */
    --secondary: #0055ff; /* Cobalt blue accent */
    --accent: #6b6b6b; /* Neutral grey sub-headings */
    --text: #191919; /* High-contrast charcoal text */
    --text-dim: #6b6b6b; /* Muted secondary text */
    --glass: rgba(0, 0, 0, 0.02); /* Clean light grey overlay */
    --border: rgba(0, 0, 0, 0.07); /* Thin, crisp border */
    --glow: 0 2px 8px rgba(0, 0, 0, 0.04); /* Soft drop shadow */
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    -webkit-tap-highlight-color: transparent;
    text-shadow: none !important; /* Disable glow/text shadows for a clean look */
}

html,
body {
    height: 100%;
    overflow: hidden;
}

body {
    background-color: var(--bg-color);
    color: var(--text);
    position: relative;
}

/* Background Orbs - Hidden for minimal aesthetic */
.glow-orbs {
    display: none !important;
}

.orb {
    display: none !important;
}

.glass-morphism {
    background: var(--card-bg) !important;
    border: 1px solid var(--border) !important;
    border-radius: 12px !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: var(--glow) !important;
}

.glow-btn {
    background: var(--primary) !important;
    color: white !important;
    border: none !important;
    padding: 8px 14px !important;
    border-radius: 6px !important;
    cursor: pointer !important;
    font-weight: 500 !important;
    font-size: 0.85rem !important;
    transition: all 0.2s ease !important;
    box-shadow: none !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
}

.glow-btn:hover {
    background: #0044cc !important;
    transform: none !important;
    box-shadow: 0 4px 12px rgba(0, 85, 255, 0.1) !important;
}

/* ============================================
   CHAT LAYOUT — Desktop
   ============================================ */
.app-container {
    display: grid;
    grid-template-columns: 260px 1fr;
    height: 100vh;
    height: 100dvh;
    max-height: 100vh;
    max-height: 100dvh;
    padding: 0;
    gap: 0;
    overflow: hidden;
    background: var(--bg-color);
}

.sidebar {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
    background: var(--bg-sidebar) !important;
    border-right: 1px solid var(--border) !important;
    border-left: none !important;
    border-top: none !important;
    border-bottom: none !important;
    border-radius: 0 !important;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.1) transparent;
}

.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

.sidebar nav .nav-item {
    text-decoration: none;
    color: var(--text-dim) !important;
    padding: 8px 12px !important;
    border-radius: 6px !important;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s ease !important;
    font-size: 0.85rem !important;
    font-weight: 500 !important;
    border-left: none !important;
}

.sidebar nav .nav-item:hover {
    color: var(--text) !important;
    background: rgba(0, 0, 0, 0.04) !important;
    border-left: none !important;
}

.sidebar nav .nav-item.active {
    color: var(--text) !important;
    background: rgba(0, 0, 0, 0.06) !important;
    font-weight: 600 !important;
    border-left: none !important;
}

#chat-history-list {
    align-items: stretch !important;
    width: 100% !important;
    text-align: left !important;
}

.history-item {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.05) !important;
    box-shadow: 0 1px 2px rgba(0,0,0,0.01) !important;
    padding: 8px 12px !important;
    border-radius: 6px !important;
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    width: 100% !important;
    text-align: left !important;
    color: var(--text-dim) !important;
}

.history-item:hover {
    background: rgba(0, 0, 0, 0.03) !important;
    color: var(--text) !important;
    border-color: rgba(0, 0, 0, 0.1) !important;
}

.history-item.active {
    background: rgba(0, 0, 0, 0.06) !important;
    color: var(--text) !important;
    border-left: 3px solid var(--primary) !important;
    font-weight: 500 !important;
}

.history-item .chat-title {
    text-align: left !important;
    justify-content: flex-start !important;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.main-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    min-width: 0;
    background: var(--bg-color);
}

.main-header {
    display: flex;
    align-items: center;
    padding: 16px 32px;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border);
    margin-bottom: 0;
    flex-shrink: 0;
}

.header-left h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text) !important;
}

/* ============================================
   CHAT BOX
   ============================================ */
.chat-box {
    flex: 1;
    overflow-y: auto;
    padding: 24px 16px !important;
    margin-bottom: 0;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.08) transparent;
    min-height: 0;
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    max-width: 800px !important;
    width: 100% !important;
    margin: 0 auto !important;
    display: flex;
    flex-direction: column;
}

.chat-box::-webkit-scrollbar {
    width: 4px;
}

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

.chat-box::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.08);
    border-radius: 10px;
}

.chat-box::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.18);
}

.message {
    margin-bottom: 20px !important;
    max-width: 85% !important;
    padding: 14px 18px !important;
    border-radius: 16px !important;
    animation: messagePop 0.3s ease-out forwards !important;
    word-wrap: break-word;
    overflow-wrap: break-word;
    line-height: 1.65 !important;
    position: relative;
}

.user-message {
    align-self: flex-end;
    background: var(--primary) !important;
    border: none !important;
    color: #ffffff !important;
    margin-left: auto;
    border-bottom-right-radius: 4px !important;
}

.user-message .message-content {
    color: #ffffff;
}

.user-message .message-content p {
    color: #ffffff;
}

.user-message .message-content * {
    color: #ffffff;
}

.user-message .message-content a {
    color: rgba(255,255,255,0.85);
    text-decoration: underline;
}

.user-message .message-content code {
    background: rgba(255,255,255,0.15) !important;
    color: #ffffff !important;
}

.user-message .message-content pre {
    background: rgba(0,0,0,0.2) !important;
    border-color: rgba(255,255,255,0.1) !important;
}

.user-message .message-content pre code {
    background: transparent !important;
}

.user-message .message-actions {
    border-top: 1px solid rgba(255, 255, 255, 0.12) !important;
}

.user-message .action-btn {
    background: rgba(255, 255, 255, 0.1) !important;
    border: none !important;
    color: rgba(255, 255, 255, 0.7) !important;
}

.user-message .action-btn:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    color: #ffffff !important;
}

.ai-message {
    align-self: flex-start;
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.06) !important;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04) !important;
    color: var(--text) !important;
    border-bottom-left-radius: 4px !important;
}

.message-actions {
    display: flex;
    gap: 4px;
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    opacity: 0;
    transition: opacity 0.2s ease;
    flex-wrap: wrap;
}

.message:hover .message-actions,
.message:focus-within .message-actions {
    opacity: 1;
}

.action-btn {
    background: transparent !important;
    border: none !important;
    color: var(--text-dim) !important;
    cursor: pointer;
    font-size: 0.78rem !important;
    padding: 5px 8px !important;
    border-radius: 6px !important;
    transition: all 0.2s ease !important;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 500 !important;
    line-height: 1;
}

.action-btn:hover {
    background: rgba(0, 0, 0, 0.04) !important;
    color: var(--text) !important;
}

/* Message content — code blocks, lists, etc. */
.message-content pre {
    background: #141416 !important;
    padding: 16px !important;
    border-radius: 8px !important;
    margin: 12px 0 !important;
    overflow-x: auto;
    border: 1px solid rgba(255, 255, 255, 0.06) !important;
    max-width: 100%;
}

.message-content code {
    font-family: 'Fira Code', 'Courier New', monospace !important;
    font-size: 0.88rem !important;
}

.message-content pre code {
    word-break: normal;
    white-space: pre;
}

.message-content p {
    margin-bottom: 12px;
}

.message-content ul,
.message-content ol {
    margin-left: 20px;
    margin-bottom: 12px;
}

.message-content li {
    margin-bottom: 6px;
}

.message-content a {
    color: var(--primary);
    text-decoration: underline;
}

.message-content table {
    width: 100%;
    overflow-x: auto;
    display: block;
    border-collapse: collapse;
}

.message-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* ============================================
   INPUT AREA
   ============================================ */
.input-area {
    display: flex !important;
    flex-direction: row !important;
    align-items: flex-end !important;
    gap: 6px !important;
    padding: 8px 8px 8px 16px !important;
    flex-shrink: 0;
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
    border-radius: 16px !important;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(0, 0, 0, 0.02) !important;
    max-width: 800px;
    width: 90% !important;
    margin: 0 auto 20px auto !important;
    transition: border-color 0.2s ease, box-shadow 0.2s ease !important;
    position: relative;
}

.input-area:focus-within {
    border-color: rgba(0, 85, 255, 0.25) !important;
    box-shadow: 0 2px 16px rgba(0, 85, 255, 0.06), 0 0 0 1px rgba(0, 85, 255, 0.1) !important;
}

.input-area .input-tool-btn {
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    border-radius: 8px !important;
    padding: 0 !important;
    display: inline-flex;
    align-items: center !important;
    justify-content: center !important;
    font-size: 0.85rem !important;
    background: transparent !important;
    color: var(--text-dim) !important;
    border: none !important;
    box-shadow: none !important;
    margin: 0 !important;
    transition: all 0.2s ease !important;
    cursor: pointer;
    flex-shrink: 0;
}

.input-area .input-tool-btn:hover {
    background: rgba(0, 0, 0, 0.04) !important;
    color: var(--text) !important;
}

.input-area .input-tool-btn.active {
    background: rgba(0, 85, 255, 0.08) !important;
    color: var(--primary) !important;
}

.input-area #send-btn {
    background: var(--primary) !important;
    color: #ffffff !important;
    border: none !important;
    width: 38px !important;
    height: 38px !important;
    min-width: 38px !important;
    border-radius: 10px !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 0.9rem !important;
    cursor: pointer;
    transition: all 0.2s ease !important;
    box-shadow: 0 2px 8px rgba(0, 85, 255, 0.2) !important;
    flex-shrink: 0;
}

.input-area #send-btn:hover {
    background: #0044cc !important;
    box-shadow: 0 4px 14px rgba(0, 85, 255, 0.3) !important;
    transform: scale(1.04);
}

.input-area #send-btn:active {
    transform: scale(0.95);
}

.input-area #stop-btn {
    background: rgba(225, 29, 72, 0.1) !important;
    color: #e11d48 !important;
    border: none !important;
    width: 38px !important;
    height: 38px !important;
    min-width: 38px !important;
    border-radius: 10px !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 0.9rem !important;
    cursor: pointer;
    transition: all 0.2s ease !important;
    flex-shrink: 0;
}

.input-area #stop-btn:hover {
    background: rgba(225, 29, 72, 0.16) !important;
    transform: scale(1.04);
}

#attach-btn {
    background: transparent !important;
    border: none !important;
    color: var(--text-dim) !important;
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    border-radius: 8px !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 1rem !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    flex-shrink: 0;
}

#attach-btn:hover {
    background: rgba(0, 0, 0, 0.04) !important;
    color: var(--text) !important;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
.tool-input {
    flex: 1;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    padding: 10px 14px;
    border-radius: 6px;
    color: var(--text);
    outline: none;
    min-width: 250px;
    font-size: 0.88rem;
    transition: all 0.2s ease;
    width: 100%;
}

.tool-input::placeholder {
    color: var(--text-dim);
    opacity: 0.7;
}

.tool-input:focus {
    background: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 85, 255, 0.1);
}

textarea.tool-input {
    resize: vertical;
    min-height: 100px;
}

select.tool-input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23191919' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 16px;
    padding-right: 45px;
}

@keyframes messagePop {
    0% {
        opacity: 0;
        transform: translateY(10px) scale(0.95);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ============================================
   TOOLS GRID
   ============================================ */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 24px;
    padding: 24px 0;
}

.tool-card {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.06) !important;
    border-radius: 12px !important;
    padding: 24px 20px !important;
    text-align: left;
    transition: all 0.2s ease;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02) !important;
}

.tool-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 0, 0, 0.12) !important;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.04) !important;
}

.tool-card i {
    font-size: 1.8rem;
    margin-bottom: 16px;
    color: var(--primary);
    display: inline-block;
}

.tool-card h3 {
    font-size: 1rem !important;
    font-weight: 600 !important;
    color: var(--text) !important;
    margin-bottom: 8px;
}

.tool-card p {
    font-size: 0.82rem !important;
    color: var(--text-dim) !important;
    line-height: 1.5;
}

/* ============================================
   PRICING CARDS
   ============================================ */
.pricing-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    padding: 40px 0;
    width: 100%;
}

.pricing-card {
    flex: 1;
    min-width: 280px;
    max-width: 350px;
    padding: 32px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
    border-radius: 16px !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02) !important;
    transition: all 0.25s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 0, 0, 0.15) !important;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.06) !important;
}

.pricing-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--text);
}

.pricing-card .price {
    font-size: 3rem;
    font-weight: 700;
    margin: 16px 0;
    color: var(--text);
}

.pricing-card .price span {
    font-size: 0.95rem;
    color: var(--text-dim) !important;
    -webkit-text-fill-color: initial !important;
}

.pricing-card ul {
    list-style: none;
    text-align: left;
    margin: 20px 0 28px;
    padding: 0;
}

.pricing-card li {
    margin-bottom: 12px;
    font-size: 0.88rem;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-card li i {
    color: var(--primary);
    font-size: 0.85rem;
}

.pricing-card.popular {
    border: 1px solid var(--primary) !important;
    box-shadow: 0 8px 24px rgba(0, 85, 255, 0.06) !important;
}

.pricing-card.popular::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary);
}

/* ============================================
   SKELETON LOADER
   ============================================ */
.typing-indicator {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 10px;
    width: 100%;
    max-width: 300px;
}

.skeleton-line {
    height: 12px;
    background: linear-gradient(90deg, var(--glass) 25%, rgba(255, 255, 255, 0.1) 50%, var(--glass) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: 6px;
}

.skeleton-line.short {
    width: 60%;
}

.skeleton-line.med {
    width: 85%;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

@keyframes reward-pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(112, 0, 255, 0.7);
    }

    70% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(112, 0, 255, 0);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(112, 0, 255, 0);
    }
}

/* ============================================
   PROMPT DIRECTORY ACTIONS
   ============================================ */
.prompt-actions-container {
    margin-top: 15px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.prompt-action {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 8px 14px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-dim);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.prompt-action:hover {
    background: rgba(0, 242, 255, 0.1);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 242, 255, 0.2);
}

.prompt-action.liked {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(255, 0, 200, 0.05);
}

.prompt-action.liked:hover {
    box-shadow: 0 5px 15px rgba(255, 0, 200, 0.2);
}

/* ============================================
   SIDEBAR OVERLAY (mobile backdrop)
   ============================================ */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* ============================================
   MOBILE: Hidden by default
   ============================================ */
.mobile-only {
    display: none;
}

/* ============================================
   CALCULATOR TOOL UI
   ============================================ */
.calc-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 15px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
}

.calc-btn:hover {
    background: rgba(0, 242, 255, 0.15);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 242, 255, 0.2);
}

.calc-btn.op {
    background: rgba(0, 242, 255, 0.08);
    color: var(--primary);
    font-weight: 700;
}

.calc-btn.op:hover {
    background: var(--primary);
    color: black;
}

/* ============================================
    PERSONA DRAWER — Desktop (Hidden)
    ============================================ */
.persona-toggle-btn {
    display: none;
}

.persona-drawer,
.persona-overlay {
    display: none;/* ============================================
   RESPONSIVE — Tablets (≤ 900px)
   ============================================ */
@media screen and (max-width: 900px) {
    .app-container {
        grid-template-columns: 240px 1fr;
        padding: 0;
        gap: 0;
    }

    .sidebar {
        padding: 16px 12px;
    }

    .pricing-card .price {
        font-size: 2.5rem;
    }
}


/* ============================================
   RESPONSIVE — Mobile (≤ 768px)
   ============================================ */
@media screen and (max-width: 768px) {
    .mobile-only {
        display: block;
    }

    /* --- App Container --- */
    .app-container {
        grid-template-columns: 1fr;
        height: 100vh;
        height: 100dvh;
        padding: 0;
        gap: 0;
    }

    /* --- Sidebar Drawer --- */
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: 280px;
        z-index: 2000;
        transform: translateX(-100%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.08) !important;
        border-radius: 0 16px 16px 0 !important;
        padding: 20px;
        padding-top: calc(20px + var(--safe-top));
        padding-bottom: calc(20px + var(--safe-bottom));
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        display: block;
        background: var(--bg-sidebar) !important;
        border-right: 1px solid var(--border) !important;
        border-left: none !important;
        border-top: none !important;
        border-bottom: none !important;
    }

    .sidebar nav {
        margin-top: 20px !important;
    }

    .sidebar nav>.glow-btn {
        margin-bottom: 15px !important;
    }

    #chat-history-list {
        max-height: 150px !important;
    }

    #user-info {
        margin-top: 15px !important;
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .sidebar-overlay.active {
        display: block;
        opacity: 1;
    }

    /* --- Main Content --- */
    .main-content {
        height: 100vh;
        height: 100dvh;
        padding: 0;
    }

    /* --- Header --- */
    .main-header {
        display: flex;
        align-items: center;
        padding: 12px 16px;
        padding-top: calc(12px + var(--safe-top));
        background: var(--bg-color);
        border-bottom: 1px solid var(--border);
        z-index: 100;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .header-left h1 {
        font-size: 1.15rem;
    }

    /* --- Chat Box --- */
    .chat-box {
        padding: 16px;
        margin-bottom: 0;
    }

    .message {
        max-width: 95% !important;
        font-size: 0.92rem !important;
        padding: 12px 16px !important;
    }

    .message-content pre {
        padding: 12px !important;
        font-size: 0.82rem !important;
        border-radius: 8px !important;
    }

    .message-content code {
        font-size: 0.82rem !important;
    }

    .message-actions {
        opacity: 1 !important;
        border-top: none !important;
        margin-top: 8px !important;
        padding-top: 0 !important;
        justify-content: flex-end;
    }

    .message-actions .action-btn {
        padding: 4px 6px !important;
        font-size: 0.72rem !important;
        background: rgba(0, 0, 0, 0.03) !important;
        border: none !important;
    }

    .message-actions .action-btn span {
        display: none !important;
    }

    .input-area {
        display: flex !important;
        flex-direction: row !important;
        align-items: flex-end !important;
        gap: 6px !important;
        padding: 8px 8px 8px 14px !important;
        padding-bottom: calc(8px + var(--safe-bottom)) !important;
        background: #ffffff !important;
        border: 1px solid rgba(0, 0, 0, 0.08) !important;
        border-radius: 14px !important;
        max-width: calc(100% - 24px) !important;
        width: calc(100% - 24px) !important;
        margin: 0 auto 16px auto !important;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04) !important;
        flex-shrink: 0;
        position: relative !important;
        transition: border-color 0.2s ease, box-shadow 0.2s ease !important;
    }

    .input-area .input-tool-btn {
        width: 30px !important;
        height: 30px !important;
        min-width: 30px !important;
        border-radius: 8px !important;
        padding: 0 !important;
        font-size: 0.8rem !important;
        color: var(--text-dim) !important;
    }

    .input-area #send-btn,
    .input-area #stop-btn {
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
        border-radius: 10px !important;
    }

    #attach-btn {
        width: 30px !important;
        height: 30px !important;
        min-width: 30px !important;
        border-radius: 8px !important;
    }

    textarea#user-input {
        flex: 1 !important;
        width: 100% !important;
        min-width: 0 !important;
        background: transparent !important;
        border: none !important;
        padding: 6px 0 !important;
        margin: 0 !important;
        font-size: 15px !important;
        line-height: 1.5 !important;
        max-height: 120px !important;
        min-height: 52px;
        max-height: 200px !important;
        resize: none !important;
        outline: none !important;
        box-shadow: none !important;
        overflow-y: auto !important;
    }

    /* --- Persona Drawer (Mobile) --- */
    .persona-toggle-btn {
        background: var(--glass);
        border: 1px solid var(--border);
        color: var(--primary);
        padding: 8px 14px;
        border-radius: 10px;
        cursor: pointer;
        font-size: 0.85rem;
        gap: 8px;
        align-items: center;
        transition: all 0.3s;
        flex-shrink: 0;
    }

    .persona-toggle-btn:hover,
    .persona-toggle-btn.active {
        background: rgba(0, 242, 255, 0.15);
        border-color: var(--primary);
    }

    .persona-drawer {
        display: block;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--card-bg);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: 1px solid var(--border);
        border-radius: 20px 20px 0 0;
        z-index: 1500;
        transform: translateY(100%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        padding: 16px;
        padding-bottom: calc(16px + var(--safe-bottom));
        max-height: 50vh;
        overflow-y: auto;
    }

    .persona-overlay {
        display: block;
    }

    .persona-drawer.active {
        transform: translateY(0);
    }

    .persona-drawer-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 15px;
        padding-bottom: 10px;
        border-bottom: 1px solid var(--border);
    }

    .persona-drawer-header h3 {
        font-size: 0.9rem;
        color: var(--text);
    }

    .persona-drawer-close {
        background: none;
        border: none;
        color: var(--text-dim);
        font-size: 1.2rem;
        cursor: pointer;
        padding: 5px;
    }

    .persona-drawer-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 10px;
    }

    .persona-drawer-item {
        background: var(--glass);
        border: 1px solid var(--border);
        padding: 12px 10px;
        border-radius: 12px;
        text-align: center;
        cursor: pointer;
        transition: all 0.3s;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 8px;
        font-size: 0.8rem;
        color: var(--text-dim);
    }

    .persona-drawer-item i {
        font-size: 1.3rem;
        color: var(--primary);
    }

    .persona-drawer-item.active {
        border-color: var(--primary);
        background: rgba(0, 242, 255, 0.1);
        color: var(--text);
    }

    .persona-drawer-item:hover {
        transform: translateY(-2px);
        border-color: var(--primary);
    }

    .persona-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1400;
    }

    .persona-overlay.active {
        display: block;
    }

    /* --- Persona Selector (desktop only) --- */
    .persona-selector {
        margin: 0 !important;
        border-radius: 0 !important;
        padding: 8px 12px !important;
        gap: 8px !important;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
    }

    .persona-item {
        scroll-snap-align: start;
        flex-shrink: 0;
        font-size: 0.75rem;
        padding: 6px 12px;
    }

    .persona-selector-wrapper {
        display: none !important;
    }

    .persona-toggle-btn {
        display: flex !important;
    }

    /* --- Views (generic) --- */
    .view {
        padding: 0;
    }

    #view-chat {
        padding: 0;
    }

    #view-tools,
    #view-prompts,
    #view-reminders {
        padding: 12px;
    }

    /* --- Footer links --- */
    footer {
        padding: 8px 12px !important;
        margin-top: 8px !important;
        flex-wrap: wrap !important;
        gap: 10px !important;
        font-size: 0.7rem !important;
    }

    /* --- Tools Grid --- */
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 10px;
        padding: 10px 0;
    }

    .tool-card {
        padding: 15px 10px;
    }

    .tool-card i {
        font-size: 1.5rem;
    }

    .tool-card h3 {
        font-size: 0.85rem;
    }

    .tool-card p {
        font-size: 0.75rem;
    }

    /* --- Tool Search Container --- */
    .search-container {
        min-width: unset !important;
        width: 100% !important;
    }

    /* --- Pricing View Mobile --- */
    #view-pricing {
        padding: 16px !important;
        align-items: flex-start !important;
    }

    #view-pricing h1 {
        font-size: 1.6rem !important;
        margin-top: 16px !important;
    }

    .pricing-container {
        padding: 16px 0;
        gap: 16px;
        flex-direction: column;
        align-items: stretch;
    }

    .pricing-card {
        max-width: 100%;
        min-width: unset;
        padding: 24px 20px;
    }

    .pricing-card .price {
        font-size: 2.5rem;
    }

    .pricing-card h3 {
        font-size: 1.2rem;
    }

    /* --- Prompts View Header --- */
    #view-prompts>div:first-child {
        flex-wrap: wrap !important;
        gap: 12px !important;
    }

    #view-prompts h1 {
        font-size: 1.4rem;
    }

    /* --- Reminders Grid --- */
    #reminders-list {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }

    /* --- Modals — Full-width on mobile --- */
    #payment-modal,
    #prompt-detail-modal,
    #comments-modal,
    #xp-modal,
    #preview-modal {
        width: 95% !important;
        max-width: 95vw !important;
        max-height: 85vh !important;
        overflow-y: auto !important;
        padding: 20px !important;
        border-radius: 16px !important;
    }

    #preview-modal {
        width: 98% !important;
        height: 92% !important;
        padding: 12px !important;
    }

    /* Modal inner scrollable areas */
    #modal-prompt-content {
        max-height: 200px !important;
    }

    #comments-list {
        max-height: 200px !important;
    }

    /* --- Tool container on mobile --- */
    #tool-container {
        margin-top: 15px !important;
        padding: 15px !important;
    }

    /* Tool container inner grid (calculator etc.) */
    #tool-content .calc-grid,
    #tool-content [style*="grid-template-columns"] {
        gap: 8px;
    }

    /* --- User info card in sidebar --- */
    #user-info {
        padding: 12px !important;
    }

    .user-profile {
        padding: 10px !important;
    }
}


/* ============================================
   RESPONSIVE — Small phones (≤ 480px)
   ============================================ */
@media screen and (max-width: 480px) {
    .sidebar {
        width: 260px;
    }

    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .tool-card {
        padding: 12px 8px;
    }

    .tool-card i {
        font-size: 1.3rem;
        margin-bottom: 6px;
    }

    .tool-card h3 {
        font-size: 0.78rem;
    }

    .tool-card p {
        font-size: 0.68rem;
        display: none;
        /* Hide descriptions on very small screens */
    }

    .message {
        max-width: 95%;
        padding: 10px;
        font-size: 0.88rem;
    }

    .input-area {
        padding: 6px 6px 6px 12px !important;
        padding-bottom: calc(6px + var(--safe-bottom)) !important;
        gap: 4px !important;
        border-radius: 12px !important;
        max-width: calc(100% - 12px) !important;
        width: calc(100% - 12px) !important;
        margin: 0 auto 10px auto !important;
    }

    .input-area .input-tool-btn {
        width: 28px !important;
        min-width: 28px !important;
        height: 28px !important;
        border-radius: 6px !important;
    }

    .input-area #send-btn,
    .input-area #stop-btn {
        width: 34px !important;
        height: 34px !important;
        min-width: 34px !important;
        border-radius: 8px !important;
    }

    #attach-btn {
        width: 28px !important;
        height: 28px !important;
        min-width: 28px !important;
        border-radius: 6px !important;
    }

    #user-input {
        padding: 6px 0 !important;
        font-size: 0.88rem !important;
    }

    .pricing-card {
        padding: 20px 16px;
    }

    .pricing-card .price {
        font-size: 2rem;
    }

    .header-left h1 {
        font-size: 1rem;
    }

    /* Hide less essential input buttons on very small screens */
    #search-toggle,
    #preview-toggle {
        display: none;
    }
}


/* ============================================
   RESPONSIVE — Tiny phones (≤ 360px)
   ============================================ */
@media screen and (max-width: 360px) {
    .sidebar {
        width: 240px;
    }

    .tools-grid {
        grid-template-columns: 1fr 1fr;
    }

    .persona-item {
        padding: 5px 10px;
        font-size: 0.7rem;
    }

    .pricing-card .price {
        font-size: 1.8rem;
    }

    footer {
        gap: 8px !important;
        font-size: 0.65rem !important;
    }
}


/* ============================================
   LANDSCAPE MOBILE 
   ============================================ */
@media screen and (max-width: 768px) and (orientation: landscape) {
    .chat-box {
        padding: 8px 12px;
    }

    .main-header {
        padding: 8px 16px;
    }

    .input-area {
        padding: 6px 6px 6px 12px;
        border-radius: 12px;
    }

    .message {
        max-width: 70%;
    }

    /* Reduce sidebar width in landscape */
    .sidebar {
        width: 250px;
    }
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background: rgba(11, 15, 26, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 16px 24px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 450px;
    transform: translateX(120%);
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    pointer-events: all;
    font-weight: 500;
}

.toast.active {
    transform: translateX(0);
}

.toast-icon {
    font-size: 1.2rem;
}

.toast-success {
    border-left: 4px solid #4ade80;
}

.toast-success i {
    color: #4ade80;
}

.toast-error {
    border-left: 4px solid #f87171;
}

.toast-error i {
    color: #f87171;
}

.toast-info {
    border-left: 4px solid var(--primary);
}

.toast-info i {
    color: var(--primary);
}

@keyframes toast-out {
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* Support Center Styles */
.support-container {
    max-width: 900px;
    margin: 20px auto;
    padding: 40px;
    animation: slideUp 0.5s ease;
}

.support-header {
    text-align: center;
    margin-bottom: 40px;
}

.support-header h1 {
    font-size: 2.5rem;
    color: var(--text);
    margin-bottom: 10px;
}

.support-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 30px;
}

.ticket-form-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 30px;
    position: relative;
    overflow: hidden;
}

.ticket-form-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 8px;
    font-weight: 500;
}

.support-history-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 25px;
}

@media (max-width: 768px) {
    .support-container {
        padding: 20px 15px;
        margin: 10px auto;
    }
    .support-header {
        margin-bottom: 25px;
    }
    .support-header h1 {
        font-size: 1.8rem;
    }
    .support-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .ticket-form-card, .support-history-card {
        padding: 20px;
        border-radius: 16px;
    }
}

/* Prompt Directory Modern UI */
.prompt-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.prompt-stats {
    display: flex;
    gap: 12px;
    background: rgba(255, 255, 255, 0.03);
    padding: 6px 12px;
    border-radius: 99px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.like-item i {
    color: #ff2d55;
}

.comment-item i {
    color: var(--primary);
}

.stat-item:hover {
    transform: scale(1.2);
}

.prompt-author {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-dim);
}

.prompt-author i {
    font-size: 1rem;
    color: var(--primary);
    opacity: 0.8;
}

.prompt-author span {
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Payment Method UI */
.payment-methods-grid {
    display: grid;
    gap: 15px;
    margin: 15px 0;
}

.payment-method-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 12px;
    transition: all 0.3s ease;
}

.payment-method-box:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
}

.method-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.method-value-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.method-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95rem;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.copy-btn {
    background: rgba(0, 242, 255, 0.1);
    color: var(--primary);
    border: 1px solid rgba(0, 242, 255, 0.2);
    padding: 5px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
}

.copy-btn:hover {
    background: var(--primary);
    color: black;
}

/* Tab Loading Transition Overlay */
.tab-loader-overlay {
    position: fixed;
    inset: 0;
    z-index: 9998;
    background: rgba(5, 5, 5, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.3s;
}

.tab-loader-overlay.active {
    opacity: 1;
    visibility: visible;
}

.tab-loader-card {
    padding: 30px 50px;
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    background: rgba(20, 20, 20, 0.65);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.tab-loader-overlay.active .tab-loader-card {
    transform: scale(1);
}

.tab-loader-spinner {
    position: relative;
    width: 50px;
    height: 50px;
    border: 3px solid transparent;
    border-top: 3px solid var(--primary);
    border-right: 3px solid var(--secondary);
    border-radius: 50%;
    animation: loader-spin 0.8s linear infinite;
    filter: drop-shadow(0 0 8px var(--primary));
}

.tab-loader-spinner::before {
    content: "";
    position: absolute;
    inset: 5px;
    border: 2px solid transparent;
    border-bottom: 2px solid var(--accent);
    border-left: 2px solid var(--primary);
    border-radius: 50%;
    animation: loader-spin-reverse 1.2s linear infinite;
}

.tab-loader-text {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
    text-transform: uppercase;
}

/* ============================================
   TYPING & THINKING SKELETON ANIMATIONS
   ============================================ */

.typing-indicator {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    max-width: 300px;
    padding: 10px 0;
}

.skeleton-line {
    height: 12px;
    background: linear-gradient(90deg, 
        rgba(255,255,255,0.03) 25%, 
        rgba(0, 242, 255, 0.08) 50%, 
        rgba(255,255,255,0.03) 75%
    );
    background-size: 200% 100%;
    border-radius: 6px;
    animation: skeleton-loading 1.4s infinite linear;
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.02);
}

.skeleton-line.med {
    width: 75%;
}

.skeleton-line.short {
    width: 50%;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Payment Modal Sub-components & Mobile Overflows */
.payment-methods-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.payment-method-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 14px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.method-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary);
    font-weight: 700;
}

.method-value-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.method-value {
    font-family: 'Fira Code', monospace;
    font-size: 0.82rem;
    color: var(--text);
    word-break: break-all;
    flex: 1;
    min-width: 140px;
    user-select: all;
    background: rgba(94, 109, 130, 0.05);
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid rgba(94, 109, 130, 0.15);
    letter-spacing: 0.5px;
}

.copy-btn {
    font-size: 0.75rem;
    padding: 8px 14px;
    background: var(--primary);
    border: 1px solid var(--primary);
    color: #ffffff;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
}

.copy-btn:hover {
    background: #7000ff; /* Secondary accent on hover */
    color: white;
    border-color: #7000ff;
    box-shadow: 0 0 15px rgba(112, 0, 255, 0.4);
    transform: translateY(-1px);
}

/* ============================================
   PREMIUM CYBER-LUXE CALCULATOR STYLES
   ============================================ */
.calculator-ui {
    background: #ffffff !important;
    border: 1px solid rgba(94, 109, 130, 0.15) !important;
    border-radius: 24px !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05) !important;
    padding: 24px !important;
}

#calc-display {
    background: rgba(94, 109, 130, 0.05) !important;
    border: 1px solid rgba(94, 109, 130, 0.1) !important;
    border-radius: 12px !important;
    font-family: 'Fira Code', monospace !important;
    font-weight: 700 !important;
    color: var(--text) !important;
    padding: 16px 20px !important;
    font-size: 2rem !important;
}

.calc-btn {
    background: #ffffff !important;
    border: 1px solid rgba(94, 109, 130, 0.15) !important;
    color: var(--text) !important;
    padding: 14px 10px !important;
    font-size: 1.15rem !important;
    font-weight: 600 !important;
    border-radius: 12px !important;
    cursor: pointer !important;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-family: inherit !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02) !important;
}

.calc-btn:hover {
    background: rgba(0, 85, 255, 0.05) !important;
    border-color: var(--primary) !important;
    color: var(--primary) !important;
    transform: translateY(-2px) !important;
}

.calc-btn:active {
    transform: translateY(1px) !important;
}

/* Operation buttons (+, -, *, /, ^) */
.calc-btn.op {
    background: rgba(0, 85, 255, 0.08) !important;
    border-color: rgba(0, 85, 255, 0.15) !important;
    color: var(--primary) !important;
}

.calc-btn.op:hover {
    background: var(--primary) !important;
    color: #ffffff !important;
    border-color: var(--primary) !important;
}

/* Equal button (=) */
.calc-btn[data-val="="] {
    background: var(--primary) !important;
    color: #ffffff !important;
    border-color: var(--primary) !important;
    font-weight: 700 !important;
}

.calc-btn[data-val="="]:hover {
    background: #0044cc !important;
    color: #ffffff !important;
    border-color: #0044cc !important;
}

/* Clear button (C) */
.calc-btn[data-val="C"] {
    background: rgba(244, 63, 94, 0.08) !important;
    border-color: rgba(244, 63, 94, 0.15) !important;
    color: #f43f5e !important;
}

.calc-btn[data-val="C"]:hover {
    background: #f43f5e !important;
    color: #ffffff !important;
    border-color: #f43f5e !important;
}

/* Premium Settings Profile Dashboard Styles */
#sidebar-user-pill {
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

#sidebar-user-pill:hover {
    background: rgba(255, 255, 255, 0.08) !important;
    border-color: var(--primary) !important;
    box-shadow: 0 4px 12px rgba(0, 85, 255, 0.1) !important;
}

#sidebar-user-pill:hover i.fa-cog {
    color: var(--primary) !important;
    transform: rotate(45deg);
}

#sidebar-user-pill i.fa-cog {
    transition: transform 0.3s ease, color 0.2s ease !important;
}

.profile-dashboard-grid .glow-btn {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.profile-dashboard-grid .glow-btn:hover {
    box-shadow: 0 0 12px var(--primary);
    transform: translateY(-1px);
}

.profile-dashboard-grid .copy-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.profile-dashboard-grid .copy-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* ============================================
   SUGGESTION CHIPS
   ============================================ */
.suggestion-chip {
    display: inline-block;
    padding: 8px 18px !important;
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.07) !important;
    border-radius: 20px !important;
    color: var(--text-dim) !important;
    font-size: 0.82rem !important;
    font-weight: 500 !important;
    cursor: pointer;
    transition: all 0.2s ease !important;
    margin: 4px !important;
    white-space: nowrap;
    user-select: none;
}

.suggestion-chip:hover {
    border-color: var(--primary) !important;
    color: var(--primary) !important;
    background: rgba(0, 85, 255, 0.04) !important;
    transform: translateY(-1px) !important;
}

/* ============================================
   TEXTAREA
   ============================================ */
textarea#user-input {
    flex: 1 !important;
    background: transparent !important;
    border: none !important;
    padding: 8px 0 !important;
    margin: 0 !important;
    color: var(--text);
    outline: none !important;
    box-shadow: none !important;
    min-width: 0 !important;
    font-size: 0.92rem;
    line-height: 1.5;
    resize: none !important;
    max-height: 150px !important;
    overflow-y: auto !important;
    font-family: inherit;
}

textarea#user-input::placeholder {
    color: var(--text-dim) !important;
    opacity: 0.55;
}

/* Streaming Blinking Cursor */
.streaming-cursor {
    display: inline-block;
    width: 6px;
    height: 14px;
    background-color: var(--primary);
    margin-left: 4px;
    animation: streaming-blink 0.8s infinite alternate;
    vertical-align: middle;
    border-radius: 1px;
}

@keyframes streaming-blink {
    0% { opacity: 0.2; }
    100% { opacity: 1; }
}

/* Beautiful Premium Code Blocks Headers */
.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #1e1e24 !important;
    padding: 8px 16px;
    font-size: 0.75rem;
    color: #a0a0ab;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    font-family: monospace;
    font-weight: 600;
}

.code-copy-btn {
    background: none;
    border: none;
    color: #a0a0ab;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
    transition: all 0.2s ease;
    font-family: inherit;
    font-weight: 500;
    padding: 2px 6px;
    border-radius: 4px;
}

.code-copy-btn:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
}

#stop-btn {
    order: 4 !important;
    background: #e11d48 !important;
    color: white !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 50% !important;
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    padding: 0 !important;
    cursor: pointer;
    transition: all 0.2s ease;
}

#stop-btn:hover {
    background: #be123c !important;
}