/* =========================================================
   CERTIS SENTINEL v0.2 — Design System
   ========================================================= */
:root {
    /* --- Palette --- */
    --bg-base: #0a0c10;
    --bg-card: #10141c;
    --bg-panel: #0e1118;
    --bg-input: #141820;
    --border: rgba(255, 255, 255, 0.07);
    --border-hi: rgba(255, 255, 255, 0.13);

    /* --- Text --- */
    --text-hi: #f0f4ff;
    --text-mid: #8b95b0;
    --text-muted: #4a5270;

    /* --- Tier accent colours --- */
    --t0: #7C3AED;
    /* Orchestrator — violet */
    --t1: #00E5FF;
    /* Tier 1 — cyan */
    --t2: #00FF88;
    /* Tier 2 — green */
    --t3: #FF8C00;
    /* Tier 3 — amber */
    --t4: #A855F7;
    /* Tier 4 — purple */

    /* --- Misc --- */
    --radius: 10px;
    --radius-sm: 6px;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-sans: 'Inter', system-ui, sans-serif;
    --topbar-h: 54px;
}

/* ===== RESET ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-base);
    color: var(--text-hi);
    font-size: 14px;
    line-height: 1.6;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 4px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

/* =========================================================
   TOP BAR
   ========================================================= */
.topbar {
    height: var(--topbar-h);
    background: rgba(10, 12, 16, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 18px;
    gap: 16px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 99;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
}

.logo-mark {
    font-size: 20px;
}

.logo-text {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.logo-primary {
    font-weight: 700;
    font-size: 15px;
    color: var(--text-hi);
}

.logo-secondary {
    font-weight: 700;
    font-size: 15px;
    color: var(--t0);
}

.logo-version {
    font-size: 10px;
    color: var(--text-muted);
    font-weight: 500;
    background: rgba(124, 58, 237, 0.15);
    border: 1px solid rgba(124, 58, 237, 0.25);
    padding: 1px 5px;
    border-radius: 4px;
}

.topbar-center {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    justify-content: center;
}

.session-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .06em;
}

.session-id {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-mid);
    background: rgba(255, 255, 255, 0.04);
    padding: 2px 7px;
    border-radius: 4px;
}

.status-pill {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    transition: all .3s;
}

.status-pill.connected {
    background: rgba(0, 255, 136, 0.08);
    border-color: rgba(0, 255, 136, 0.25);
    color: var(--t2);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: .3;
    }
}

.active-badge {
    display: none;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 20px;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.3);
    font-size: 11px;
    color: var(--t4);
    font-weight: 500;
    animation: fade-in-up .25s ease;
}

.active-badge.visible {
    display: flex;
}

.active-badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--t4);
    animation: pulse-dot 1s infinite;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 0 0 auto;
}

.btn-ghost {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-mid);
    padding: 5px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: all .2s;
}

.btn-ghost:hover {
    border-color: var(--border-hi);
    color: var(--text-hi);
    background: rgba(255, 255, 255, 0.04);
}

/* =========================================================
   APP SHELL
   ========================================================= */
.app-shell {
    display: flex;
    height: 100vh;
    padding-top: var(--topbar-h);
}

/* =========================================================
   LEFT — WORKFLOW PANEL
   ========================================================= */
.workflow-panel {
    width: 360px;
    min-width: 300px;
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    padding: 14px 16px 10px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.panel-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-hi);
}

.step-count-badge {
    font-size: 10px;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    padding: 2px 7px;
    border-radius: 10px;
    font-family: var(--font-mono);
}

.tiers-container {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* --- Tier block --- */
.tier-block {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tier-label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    padding: 0 4px;
    margin-top: 4px;
    opacity: .7;
}

/* --- Flow arrow between tiers --- */
.flow-arrow {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 2px 6px;
    color: var(--text-muted);
    font-size: 10px;
}

/* --- Agent card --- */
.agent-card {
    background: var(--agent-bg, rgba(255, 255, 255, 0.025));
    border: 1px solid color-mix(in srgb, var(--tier-color, var(--t1)) 25%, transparent);
    border-radius: var(--radius);
    padding: 10px 12px;
    cursor: pointer;
    transition: all .35s cubic-bezier(.4, 0, .2, 1);
    opacity: .75;
    position: relative;
    overflow: hidden;
}

.agent-card:hover:not(.active) {
    opacity: .88;
    transform: translateX(3px);
    border-color: color-mix(in srgb, var(--tier-color, var(--t1)) 45%, var(--border));
}


.agent-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--tier-color, var(--t1));
    opacity: 0;
    transition: opacity .3s;
}

/* ACTIVE state — gradient border + metallic fill */
.agent-card.active {
    opacity: 1;
    border: 2px solid transparent;
    background:
        /* card fill - metallic diagonal gradient */
        linear-gradient(150deg,
            color-mix(in srgb, var(--tier-color, var(--t1)) 60%, white) 0%,
            color-mix(in srgb, var(--tier-color, var(--t1)) 38%, #101418) 30%,
            color-mix(in srgb, var(--tier-color, var(--t1)) 22%, #07090e) 65%,
            color-mix(in srgb, var(--tier-color, var(--t1)) 14%, #04060b) 100%) padding-box,
        /* gradient BORDER — bright top → agent colour → dark base */
        linear-gradient(150deg,
            color-mix(in srgb, var(--tier-color, var(--t1)) 20%, white) 0%,
            var(--tier-color, var(--t1)) 40%,
            color-mix(in srgb, var(--tier-color, var(--t1)) 70%, black) 100%) border-box;
    transform: scale(1.02);
    box-shadow:
        /* tight inner rim */
        inset 0 1px 0 rgba(255, 255, 255, 0.28),
        inset 0 -1px 0 rgba(0, 0, 0, 0.5),
        /* close glow halo */
        0 0 8px 2px color-mix(in srgb, var(--tier-color, var(--t1)) 60%, transparent),
        /* mid glow */
        0 0 22px 6px color-mix(in srgb, var(--tier-color, var(--t1)) 45%, transparent),
        /* wide atmospheric glow */
        0 0 60px 14px color-mix(in srgb, var(--tier-color, var(--t1)) 22%, transparent);
    animation: card-glow 1.5s ease-in-out infinite;
}

.agent-card.active::before {
    opacity: 0;
}

.agent-card.active .agent-status-chip {
    display: flex;
}

/* COMPLETED state */
.agent-card.completed {
    opacity: .75;
    border-color: color-mix(in srgb, var(--tier-color, var(--t1)) 30%, transparent);
}

.agent-card.completed::before {
    opacity: .7;
    background: var(--tier-color, var(--t1));
}

.agent-card.completed .agent-status-chip {
    display: flex;
    color: var(--t2);
    border-color: rgba(0, 255, 136, 0.3);
    background: rgba(0, 255, 136, 0.07);
}

@keyframes card-glow {

    0%,
    100% {
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.28),
            inset 0 -1px 0 rgba(0, 0, 0, 0.50),
            0 0 8px 2px color-mix(in srgb, var(--tier-color, var(--t1)) 60%, transparent),
            0 0 22px 6px color-mix(in srgb, var(--tier-color, var(--t1)) 45%, transparent),
            0 0 60px 14px color-mix(in srgb, var(--tier-color, var(--t1)) 22%, transparent);
    }

    50% {
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.40),
            inset 0 -1px 0 rgba(0, 0, 0, 0.50),
            0 0 12px 4px color-mix(in srgb, var(--tier-color, var(--t1)) 85%, transparent),
            0 0 36px 12px color-mix(in srgb, var(--tier-color, var(--t1)) 65%, transparent),
            0 0 90px 22px color-mix(in srgb, var(--tier-color, var(--t1)) 32%, transparent);
    }
}

.agent-card-top {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.agent-icon {
    font-size: 20px;
    flex-shrink: 0;
    margin-top: 1px;
}

.agent-info {
    flex: 1;
    min-width: 0;
}

.agent-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-hi);
}

.agent-desc {
    font-size: 9px;
    color: var(--text-hi);
    margin-top: 2px;
    line-height: 1.4;
    opacity: 0.82;
}

.agent-status-chip {
    display: none;
    align-items: center;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .08em;
    color: var(--tier-color, var(--t1));
    border: 1px solid color-mix(in srgb, var(--tier-color, var(--t1)) 35%, transparent);
    background: color-mix(in srgb, var(--tier-color, var(--t1)) 8%, transparent);
    padding: 2px 6px;
    border-radius: 10px;
    white-space: nowrap;
    animation: blink-chip 1.5s step-end infinite;
}

@keyframes blink-chip {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: .5;
    }
}

/* --- Agent message count badge (shown below card after workflow runs) --- */
.agent-msg-count {
    font-size: 10px;
    font-weight: 500;
    margin-top: 6px;
    padding: 1px 0 0 2px;
    letter-spacing: .02em;
    opacity: .8;
    animation: fade-in-up .2s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* --- Step log --- */
.step-log {
    flex-shrink: 0;
    max-height: 160px;
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
}

.step-log-header {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 6px 12px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.step-log-body {
    overflow-y: auto;
    flex: 1;
    padding: 4px 0;
}

.step-entry {
    display: flex;
    gap: 8px;
    padding: 3px 12px;
    font-size: 11px;
    font-family: var(--font-mono);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.step-time {
    color: var(--text-muted);
    flex-shrink: 0;
}

.step-author {
    font-weight: 600;
    flex-shrink: 0;
    min-width: 120px;
}

.step-msg {
    color: var(--text-mid);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* loading state */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 40px 0;
    color: var(--text-muted);
    font-size: 12px;
}

.loading-state>div {
    display: flex;
    gap: 6px;
}

.bounce-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--t1);
    animation: bounce 1.2s infinite;
}

.bounce-dot:nth-child(2) {
    animation-delay: .2s;
    background: var(--t2);
}

.bounce-dot:nth-child(3) {
    animation-delay: .4s;
    background: var(--t4);
}

@keyframes bounce {

    0%,
    80%,
    100% {
        transform: scale(0);
        opacity: .4;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* =========================================================
   RIGHT — CHAT PANEL
   ========================================================= */
.chat-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-base);
}

/* --- Messages area --- */
.messages-area {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* --- Message bubbles --- */
.msg {
    display: flex;
    flex-direction: column;
    max-width: 82%;
    animation: fade-in-up .25s ease;
}

.msg.user {
    align-self: flex-end;
    align-items: flex-end;
}

.msg.agent {
    align-self: flex-start;
    align-items: flex-start;
}

.msg.system {
    align-self: center;
    align-items: center;
}

.msg-bubble {
    padding: 11px 15px;
    border-radius: var(--radius);
    font-size: 14px;
    line-height: 1.65;
}

.msg.user .msg-bubble {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    color: #fff;
    border-bottom-right-radius: 3px;
}

.msg.agent .msg-bubble {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-hi);
    border-bottom-left-radius: 3px;
}

/* --- Per-agent attributed bubble --- */
.msg-agent-header {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 5px;
}

.msg-agent-icon {
    font-size: 16px;
    line-height: 1;
}

.msg-agent-name {
    font-size: 12px;
    font-weight: 700;
    color: var(--agent-color, var(--t1));
    letter-spacing: .01em;
}

.msg-agent-time {
    font-size: 10px;
    color: var(--text-muted);
    margin-left: auto;
}

.agent-bubble {
    border-left: 3px solid var(--agent-color, var(--t1)) !important;
    background: color-mix(in srgb, var(--agent-color, var(--t1)) 5%, var(--bg-card)) !important;
    border-color: color-mix(in srgb, var(--agent-color, var(--t1)) 25%, var(--border)) !important;
}


.msg.system .msg-bubble {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 12px;
    text-align: center;
}

.msg-author {
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 4px;
    font-weight: 500;
}

.msg-time {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Markdown inside agent bubbles */
.msg.agent .msg-bubble h1,
.msg.agent .msg-bubble h2,
.msg.agent .msg-bubble h3 {
    margin: 12px 0 6px;
    color: var(--text-hi);
    font-size: 14px;
}

.msg.agent .msg-bubble p {
    margin-bottom: 8px;
}

.msg.agent .msg-bubble ul,
.msg.agent .msg-bubble ol {
    margin-left: 18px;
    margin-bottom: 8px;
}

.msg.agent .msg-bubble code {
    font-family: var(--font-mono);
    font-size: 12px;
    background: rgba(0, 0, 0, 0.3);
    padding: 1px 5px;
    border-radius: 4px;
    color: var(--t2);
}

.msg.agent .msg-bubble pre {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px;
    margin: 8px 0;
    overflow-x: auto;
}

.msg.agent .msg-bubble pre code {
    background: none;
    padding: 0;
    color: var(--text-hi);
}

.msg.agent .msg-bubble table {
    border-collapse: collapse;
    width: 100%;
    margin: 10px 0;
    font-size: 13px;
}

.msg.agent .msg-bubble th,
.msg.agent .msg-bubble td {
    border: 1px solid var(--border);
    padding: 6px 10px;
    text-align: left;
}

.msg.agent .msg-bubble th {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-mid);
    font-weight: 600;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* --- Flash highlight when the chat scrolls to a message via card click --- */
@keyframes msg-flash-anim {
    0% {
        box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.5);
        background-color: rgba(255, 255, 255, 0.06);
    }

    60% {
        box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
    }

    100% {
        box-shadow: none;
        background-color: transparent;
    }
}

.msg-flash {
    animation: msg-flash-anim 1.2s ease forwards;
    border-radius: var(--radius);
}

/* --- Thinking bubble --- */
.thinking-bubble {
    display: none;
    margin: 0 24px 10px;
    padding: 10px 14px;
    background: rgba(168, 85, 247, 0.07);
    border: 1px solid rgba(168, 85, 247, 0.2);
    border-radius: var(--radius);
    animation: fade-in-up .2s ease;
}

.thinking-bubble.visible {
    display: block;
}

.thinking-header {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 11px;
    font-weight: 600;
    color: var(--t4);
    margin-bottom: 5px;
}

.thinking-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--t4);
    animation: pulse-dot 1s infinite;
}

.thinking-text {
    display: none;
    font-size: 12px;
    color: var(--text-mid);
    max-height: 80px;
    overflow-y: auto;
    line-height: 1.5;
    font-family: var(--font-mono);
}

/* --- Input area --- */
.input-area {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    padding: 12px 24px 16px;
    border-top: 1px solid var(--border);
    background: var(--bg-panel);
}

.chat-input {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-hi);
    font-family: var(--font-sans);
    font-size: 14px;
    padding: 10px 14px;
    resize: none;
    min-height: 44px;
    max-height: 160px;
    transition: border-color .2s;
    outline: none;
}

.chat-input::placeholder {
    color: var(--text-muted);
}

.chat-input:focus {
    border-color: rgba(124, 58, 237, 0.5);
}

.send-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    border: none;
    cursor: pointer;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all .2s;
}

.send-btn:hover:not(:disabled) {
    transform: scale(1.06);
    box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
}

.send-btn:disabled {
    opacity: .35;
    cursor: not-allowed;
    transform: none;
}

/* =========================================================
   AG-UI BADGE
   ========================================================= */
.logo-agui {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: #00e5ff;
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.3);
    padding: 1px 5px;
    border-radius: 4px;
    margin-left: 2px;
}

/* =========================================================
   STREAMING CURSOR (appended to live assistant text)
   ========================================================= */
@keyframes blink-cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.blinking-cursor {
    display: inline-block;
    width: 2px;
    height: 1.25em;
    background: var(--t1);
    margin-left: 4px;
    vertical-align: middle;
    animation: blink-cursor 0.8s step-end infinite;
    box-shadow: 0 0 8px var(--t1);
}

.markdown-body pre {
    background: #0d1117;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin: 12px 0;
    position: relative;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.markdown-body code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: #ffd700;
}

.markdown-body table {
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin: 12px 0;
}

.markdown-body th {
    background: rgba(255,255,255,0.05);
    padding: 10px;
    font-weight: 600;
    color: var(--text-mid);
}

.markdown-body td {
    padding: 8px 10px;
    border-top: 1px solid var(--border);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 900px) {
    .workflow-panel {
        width: 280px;
    }
}

@media (max-width: 660px) {
    .app-shell {
        flex-direction: column;
    }

    .workflow-panel {
        width: 100%;
        height: 240px;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .topbar-center {
        display: none;
    }
}