:root {
    --bg: #0a0f14;
    --bg-2: #101720;
    --panel: rgba(19, 28, 37, 0.92);
    --panel-2: rgba(14, 22, 30, 0.96);
    --line: rgba(120, 180, 160, 0.16);
    --line-strong: rgba(120, 180, 160, 0.3);

    --text: #e7f1ee;
    --text-soft: #9eb4ad;
    --text-dim: #6f8580;

    --accent: #47d7ac;
    --accent-2: #26b892;
    --warning: #f2b84b;
    --danger: #f36c6c;
    --info: #63b7ff;

    --shadow: 0 18px 40px rgba(0, 0, 0, 0.38);
    --radius: 18px;
    --radius-sm: 12px;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    background:
            radial-gradient(circle at top right, rgba(71, 215, 172, 0.08), transparent 25%),
            radial-gradient(circle at bottom left, rgba(99, 183, 255, 0.06), transparent 22%),
            linear-gradient(180deg, #091017 0%, #0b1118 100%);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
    padding: 20px;
}

.app {
    max-width: 1600px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 340px minmax(0, 1fr);
    grid-template-rows: auto 1fr;
    gap: 18px;
    min-height: calc(100vh - 40px);
}

.header {
    grid-column: 1 / -1;
    background: linear-gradient(180deg, rgba(17, 27, 36, 0.96), rgba(13, 22, 29, 0.96));
    border: 1px solid var(--line);
    border-radius: 22px;
    box-shadow: var(--shadow);
    padding: 20px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    position: relative;
    overflow: hidden;
    min-height: 90px;
}

.header::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
            linear-gradient(90deg, transparent, rgba(71, 215, 172, 0.05), transparent);
    pointer-events: none;
}

.header-left {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.eyebrow {
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.72rem;
    font-weight: 700;
}

.cache-title {
    margin: 0;
    font-size: clamp(1.5rem, 2.4vw, 2.2rem);
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: 0.01em;
}

.header-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.meta-chip {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--line);
    color: var(--text-soft);
    border-radius: 999px;
    padding: 8px 12px;
    font-size: 0.88rem;
    white-space: nowrap;
}

.sidebar,
.main {
    background: linear-gradient(180deg, rgba(17, 25, 34, 0.94), rgba(11, 18, 25, 0.96));
    border: 1px solid var(--line);
    border-radius: 22px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.sidebar {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.sidebar-head {
    padding: 18px 18px 14px;
    border-bottom: 1px solid var(--line);
    background: rgba(255,255,255,0.02);
}

.sidebar-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
}

.sidebar-subtitle {
    margin: 6px 0 0;
    color: var(--text-dim);
    font-size: 0.9rem;
}

.stage-list {
    list-style: none;
    margin: 0;
    padding: 10px;
    overflow: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.stage-item {
    border: 1px solid transparent;
    background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
    border-radius: 16px;
    padding: 14px;
    display: grid;
    gap: 8px;
    transition: 0.2s ease;
    cursor: pointer;
}

.stage-item:hover {
    border-color: var(--line-strong);
    transform: translateY(-1px);
}

.stage-item.active {
    border-color: rgba(71, 215, 172, 0.45);
    background: linear-gradient(180deg, rgba(71, 215, 172, 0.09), rgba(71, 215, 172, 0.03));
    box-shadow: inset 0 0 0 1px rgba(71, 215, 172, 0.12);
}

.stage-item.locked {
    opacity: 0.82;
}

.stage-topline {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: flex-start;
}

.stage-name {
    margin: 0;
    font-size: 0.98rem;
    font-weight: 700;
    line-height: 1.25;
}

.stage-number {
    color: var(--text-dim);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

.stage-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 5px 10px;
    font-size: 0.78rem;
    font-weight: 700;
    border: 1px solid transparent;
}

.badge-open {
    background: rgba(71, 215, 172, 0.12);
    color: #8ef0cf;
    border-color: rgba(71, 215, 172, 0.2);
}

.badge-locked {
    background: rgba(242, 184, 75, 0.11);
    color: #ffd37d;
    border-color: rgba(242, 184, 75, 0.18);
}

.badge-done {
    background: rgba(99, 183, 255, 0.11);
    color: #9fd4ff;
    border-color: rgba(99, 183, 255, 0.18);
}

.badge-critical {
    background: rgba(243, 108, 108, 0.11);
    color: #ffaaaa;
    border-color: rgba(243, 108, 108, 0.18);
}

.stage-timer {
    color: var(--text-soft);
    font-size: 0.85rem;
}

.stage-description {
    color: var(--text-dim);
    font-size: 0.86rem;
    line-height: 1.4;
}

.main {
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    min-height: 0;
}

.main-head {
    padding: 22px 24px 16px;
    border-bottom: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-start;
    background: rgba(255,255,255,0.02);
}

.main-head-left {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.main-stage-title {
    margin: 0;
    font-size: clamp(1.35rem, 2vw, 1.9rem);
    font-weight: 800;
    line-height: 1.15;
}

.main-stage-subtitle {
    margin: 0;
    color: var(--text-soft);
    font-size: 0.96rem;
}

.status-panel {
    min-width: 230px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 14px;
    display: grid;
    gap: 10px;
}

.status-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.88rem;
}

.status-label {
    color: var(--text-dim);
}

.status-value {
    color: var(--text);
    font-weight: 700;
    text-align: right;
}

.main-alerts {
    padding: 16px 24px 0;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.alert {
    border-radius: 14px;
    padding: 12px 14px;
    border: 1px solid;
    font-size: 0.9rem;
}

.alert-info {
    background: rgba(99, 183, 255, 0.08);
    border-color: rgba(99, 183, 255, 0.18);
    color: #b4dbff;
}

.alert-warning {
    background: rgba(242, 184, 75, 0.08);
    border-color: rgba(242, 184, 75, 0.18);
    color: #ffd889;
}

.content {
    padding: 22px 24px 24px;
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) 360px;
    gap: 18px;
    min-height: 0;
}

.content-card {
    background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 20px;
    min-height: 160px;
}

.section-label {
    margin: 0 0 10px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.73rem;
    font-weight: 800;
}

.content-card h3 {
    margin: 0 0 12px;
    font-size: 1.15rem;
}

.content-card p {
    margin: 0 0 12px;
    color: var(--text-soft);
    line-height: 1.65;
}

.riddle-box {
    background: rgba(0, 0, 0, 0.18);
    border: 1px dashed rgba(71, 215, 172, 0.24);
    border-radius: 14px;
    padding: 16px;
    margin-top: 14px;
}

.riddle-box strong {
    color: var(--text);
    display: block;
    margin-bottom: 8px;
}

.intel-list {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.intel-item {
    border-left: 3px solid var(--accent);
    padding: 10px 12px;
    background: rgba(255,255,255,0.02);
    border-radius: 0 12px 12px 0;
    color: var(--text-soft);
    font-size: 0.92rem;
}

.side-stack {
    display: grid;
    gap: 18px;
}

.timeline {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 12px;
}

.timeline li {
    position: relative;
    padding-left: 16px;
    color: var(--text-soft);
    font-size: 0.9rem;
    line-height: 1.5;
}

.timeline li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.58em;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(71, 215, 172, 0.12);
}

.countdown {
    display: grid;
    gap: 8px;
}

.countdown-value {
    font-size: clamp(1.4rem, 2.5vw, 2.2rem);
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--accent);
}

.footer-bar {
    border-top: 1px solid var(--line);
    padding: 14px 24px;
    color: var(--text-dim);
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    background: rgba(255,255,255,0.02);
}

.logout-link {
    color: var(--text-soft);
    text-decoration: none;
    border-bottom: 1px dotted rgba(255,255,255,0.25);
}

.logout-link:hover {
    color: var(--accent);
}

@media (max-width: 1180px) {
    .app {
        grid-template-columns: 300px minmax(0, 1fr);
    }

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

@media (max-width: 900px) {
    body {
        padding: 12px;
    }

    .app {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto 1fr;
        min-height: auto;
    }

    .sidebar {
        order: 2;
    }

    .main {
        order: 3;
    }

    .header {
        order: 1;
        padding: 18px;
    }

    .main-head {
        flex-direction: column;
    }

    .status-panel {
        min-width: 0;
        width: 100%;
    }

    .content {
        padding: 18px;
    }

    .main-alerts {
        padding: 14px 18px 0;
    }

    .footer-bar {
        padding: 14px 18px;
    }
}

@media (max-width: 560px) {
    .cache-title {
        font-size: 1.35rem;
    }

    .stage-list {
        max-height: 42vh;
    }

    .main-stage-title {
        font-size: 1.25rem;
    }
}

.brand {
    display: flex;
    align-items: center;
    gap: 20px;
    text-decoration: none;
    color: inherit;
}

.brand-logo {
    height: 100px;
    width: auto;
    max-width: 320px;
}

.brand-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
}

@media (max-width: 560px) {
    .brand-logo {
        height: 50px;
        max-width: 180px;
    }

    .brand {
        gap: 10px;
    }
}