/* ================================================
   CORTEX PAGE — Conversational Intelligence
   ================================================ */

/* Hero */
.cortex-hero-section {
    padding-bottom: 0 !important;
}

/* Role Picker */
.cortex-roles {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.cortex-roles.animated {
    opacity: 1;
    transform: translateY(0);
}

.cortex-role {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1rem;
    border: 1px solid var(--border);
    border-radius: 100px;
    background: var(--bg-card);
    font-family: var(--body);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s var(--ease);
    white-space: nowrap;
}

.cortex-role:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(27, 107, 90, 0.04);
}

.cortex-role.active {
    border-color: var(--accent);
    background: rgba(27, 107, 90, 0.08);
    color: var(--accent);
    font-weight: 600;
}

.cortex-role svg {
    opacity: 0.5;
    flex-shrink: 0;
}

.cortex-role.active svg {
    opacity: 1;
    stroke: var(--accent);
}

.cortex-role-tag {
    font-family: var(--mono);
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-dim);
    background: var(--bg-elevated);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
}

.cortex-role.active .cortex-role-tag {
    background: rgba(27, 107, 90, 0.12);
    color: var(--accent);
}

/* Chat Container */
.cortex-chat-container {
    max-width: 760px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    min-height: 480px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}

/* Messages area */
.cortex-chat-messages {
    flex: 1;
    padding: 2rem 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    overflow-y: auto;
    max-height: 600px;
}

/* User message (right-aligned) */
.cortex-msg-user {
    align-self: flex-end;
    max-width: 82%;
    background: rgba(27, 107, 90, 0.07);
    border: 1px solid rgba(27, 107, 90, 0.12);
    border-radius: 16px 16px 4px 16px;
    padding: 0.85rem 1.15rem;
    font-family: var(--serif);
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.45;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}

.cortex-msg-user.visible {
    opacity: 1;
    transform: translateY(0);
}

/* IW response (left-aligned) */
.cortex-msg-iw {
    align-self: flex-start;
    max-width: 88%;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 4px 16px 16px 16px;
    padding: 1.15rem 1.35rem;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}

.cortex-msg-iw.visible {
    opacity: 1;
    transform: translateY(0);
}

.cortex-msg-iw-label {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--mono);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--accent);
    margin-bottom: 0.6rem;
}

.cortex-msg-iw-label svg {
    stroke: var(--accent);
}

.cortex-msg-answer-text {
    font-size: 0.88rem;
    line-height: 1.65;
    color: var(--text);
    margin: 0;
}

/* Graph Trace Toggle */
.cortex-trace-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    cursor: pointer;
    margin-top: 0.85rem;
    padding-top: 0.65rem;
    border-top: 1px solid var(--border);
    user-select: none;
    transition: opacity 0.2s;
}

.cortex-trace-toggle:hover {
    opacity: 0.75;
}

.cortex-trace-toggle-arrow {
    display: inline-block;
    transition: transform 0.3s var(--ease);
    font-size: 0.55rem;
}

.cortex-trace-toggle.expanded .cortex-trace-toggle-arrow {
    transform: rotate(90deg);
}

/* Trace body (collapsible) */
.cortex-trace-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--ease);
}

.cortex-trace-body.open {
    max-height: 600px;
}

/* Trace steps */
.cortex-trace-step {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 0.55rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

.cortex-trace-step:last-child {
    border-bottom: none;
}

.cortex-trace-badge {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 20px;
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #fff;
    margin-top: 2px;
}

.cortex-trace-badge-l1 {
    background: var(--accent);
}

.cortex-trace-badge-l2 {
    background: #14b8a6;
}

.cortex-trace-badge-l3 {
    background: var(--red);
}

.cortex-trace-content {
    flex: 1;
    min-width: 0;
}

.cortex-trace-label {
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.15rem;
}

.cortex-trace-desc {
    font-size: 0.78rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Typing indicator */
.cortex-typing {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    align-self: flex-start;
    padding: 0.9rem 1.2rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 4px 16px 16px 16px;
}

.cortex-typing-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--text-dim);
    animation: cortexTypingBounce 1.4s infinite;
}

.cortex-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.cortex-typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes cortexTypingBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.3; }
    30% { transform: translateY(-5px); opacity: 1; }
}

/* Suggestion chips */
.cortex-suggestions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding: 0 1.75rem 1.25rem;
}

.cortex-suggestion-chip {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 100px;
    font-family: var(--body);
    font-size: 0.78rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s var(--ease);
    background: var(--bg-card);
    line-height: 1.35;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), border-color 0.2s, color 0.2s, background 0.2s;
}

.cortex-suggestion-chip.visible {
    opacity: 1;
    transform: translateY(0);
}

.cortex-suggestion-chip:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(27, 107, 90, 0.03);
}

/* Decorative input bar */
.cortex-input-bar {
    padding: 0.85rem 1.75rem;
    border-top: 1px solid var(--border);
    background: var(--bg-elevated);
    border-radius: 0 0 16px 16px;
}

.cortex-input-fake {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-card);
}

.cortex-input-placeholder {
    color: var(--text-dim);
    font-size: 0.85rem;
}

/* data-animate: triggered by IntersectionObserver */
[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

[data-animate].animated {
    opacity: 1;
    transform: none;
}

/* ================================================
   MCP — AGENT INFRASTRUCTURE
   ================================================ */

.cortex-mcp-section {
    background: var(--bg-elevated);
}

.mcp-layout {
    max-width: 960px;
    margin: 0 auto;
}

/* Hub visual */
.mcp-hub-visual {
    position: relative;
    min-height: 320px;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mcp-hub-center {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 1.75rem 2rem;
    background: var(--bg-card);
    border: 2px solid var(--accent);
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 0 40px rgba(27, 107, 90, 0.08);
}

.mcp-hub-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, rgba(27, 107, 90, 0.06) 0%, transparent 70%);
    border-radius: 24px;
    z-index: -1;
}

.mcp-hub-center svg {
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.mcp-hub-center strong {
    font-size: 1rem;
    color: var(--text);
    font-weight: 700;
}

.mcp-hub-sub {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.15rem 0.5rem;
    background: rgba(27, 107, 90, 0.08);
    border-radius: 4px;
}

/* Spokes */
.mcp-spokes {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.mcp-spoke {
    position: absolute;
    display: flex;
    align-items: center;
}

.mcp-spoke-line {
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--border));
    flex-shrink: 0;
}

.mcp-spoke-node {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    transition: all 0.25s var(--ease);
}

.mcp-spoke-node:hover {
    border-color: var(--accent);
    color: var(--text);
}

.mcp-spoke-node svg {
    color: var(--accent);
    flex-shrink: 0;
}

/* Position spokes around the hub */
.mcp-spoke-0 { top: 10%; left: 0; flex-direction: row-reverse; }
.mcp-spoke-0 .mcp-spoke-line { width: 60px; background: linear-gradient(270deg, var(--accent), var(--border)); }

.mcp-spoke-1 { top: 10%; right: 0; }
.mcp-spoke-1 .mcp-spoke-line { width: 60px; }

.mcp-spoke-2 { top: 45%; left: 0; flex-direction: row-reverse; }
.mcp-spoke-2 .mcp-spoke-line { width: 40px; background: linear-gradient(270deg, var(--accent), var(--border)); }

.mcp-spoke-3 { top: 45%; right: 0; }
.mcp-spoke-3 .mcp-spoke-line { width: 40px; }

.mcp-spoke-4 { bottom: 12%; left: 0; flex-direction: row-reverse; }
.mcp-spoke-4 .mcp-spoke-line { width: 60px; background: linear-gradient(270deg, var(--accent), var(--border)); }

.mcp-spoke-5 { bottom: 12%; right: 0; }
.mcp-spoke-5 .mcp-spoke-line { width: 60px; }

/* Tool cards */
.mcp-tools-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 3rem;
}

.mcp-tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    transition: border-color 0.25s var(--ease);
}

.mcp-tool-card:hover {
    border-color: var(--accent);
}

.mcp-tool-name {
    font-family: var(--mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.3rem;
}

.mcp-tool-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 0.6rem;
    line-height: 1.4;
}

.mcp-tool-example {
    display: block;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--text-dim);
    background: var(--bg-elevated);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    line-height: 1.4;
}

/* Benefits */
.mcp-benefits {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.mcp-benefit {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.mcp-benefit-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(27, 107, 90, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--accent);
}

.mcp-benefit strong {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.2rem;
}

.mcp-benefit span {
    font-size: 0.78rem;
    color: var(--text-dim);
    line-height: 1.45;
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 768px) {
    .cortex-roles {
        gap: 0.35rem;
    }
    .cortex-role {
        font-size: 0.72rem;
        padding: 0.4rem 0.7rem;
    }
    .cortex-role span:not(.cortex-role-tag) {
        display: none;
    }
    .cortex-role-tag {
        font-size: 0.6rem;
    }
    .cortex-chat-container {
        border-radius: 10px;
    }
    .cortex-chat-messages {
        padding: 1.25rem 1rem;
        max-height: 500px;
    }
    .cortex-msg-user {
        max-width: 92%;
        font-size: 0.88rem;
    }
    .cortex-msg-iw {
        max-width: 95%;
    }
    .cortex-suggestions {
        padding: 0 1rem 1rem;
    }
    .cortex-input-bar {
        padding: 0.65rem 1rem;
    }
    .mcp-hub-visual {
        min-height: 220px;
    }
    .mcp-spokes {
        display: none;
    }
    .mcp-tools-grid {
        grid-template-columns: 1fr;
    }
    .mcp-benefits {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}