:root {
    --bg: #07131d;
    --bg-2: #0d2030;
    --panel: rgba(10, 24, 36, 0.82);
    --panel-strong: rgba(8, 18, 28, 0.94);
    --line: rgba(151, 204, 213, 0.18);
    --text: #eef6f6;
    --muted: #9ab7bd;
    --primary: #2ed3ad;
    --primary-deep: #109a88;
    --secondary: #ffb648;
    --danger: #ff6f61;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --font-display: "Space Grotesk", sans-serif;
    --font-body: "Noto Sans SC", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-body);
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(20, 110, 116, 0.34), transparent 34%),
        radial-gradient(circle at top right, rgba(255, 182, 72, 0.16), transparent 28%),
        linear-gradient(135deg, #041019 0%, #07131d 36%, #0d2030 100%);
}

button,
input,
select {
    font: inherit;
}

code {
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff5dd;
}

.app-body {
    position: relative;
    overflow-x: hidden;
}

.bg-orb {
    position: fixed;
    width: 28rem;
    height: 28rem;
    border-radius: 50%;
    filter: blur(20px);
    opacity: 0.42;
    pointer-events: none;
    animation: drift 14s ease-in-out infinite;
}

.bg-orb-a {
    top: -10rem;
    left: -6rem;
    background: radial-gradient(circle, rgba(46, 211, 173, 0.48), transparent 68%);
}

.bg-orb-b {
    right: -8rem;
    bottom: -10rem;
    background: radial-gradient(circle, rgba(255, 182, 72, 0.32), transparent 68%);
    animation-delay: -6s;
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: radial-gradient(circle at center, black 42%, transparent 100%);
    pointer-events: none;
}

.page-shell {
    position: relative;
    z-index: 1;
    width: min(1240px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 2rem 0 3rem;
}

.flash-stack {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.flash {
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    padding: 0.9rem 1rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
}

.flash-success {
    background: rgba(46, 211, 173, 0.16);
}

.flash-warning {
    background: rgba(255, 182, 72, 0.16);
}

.flash-danger {
    background: rgba(255, 111, 97, 0.16);
}

.auth-layout,
.dashboard-shell {
    display: grid;
    gap: 1.4rem;
}

.auth-layout {
    min-height: calc(100vh - 7rem);
    align-items: center;
    grid-template-columns: 1.15fr 0.9fr;
}

.hero-panel,
.auth-card,
.card,
.metric-card,
.user-card,
.empty-state-card {
    position: relative;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--panel);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow);
}

.hero-panel,
.auth-card,
.card,
.empty-state-card {
    padding: 1.7rem;
}

.hero-panel {
    overflow: hidden;
}

.hero-panel::after,
.card::after,
.auth-card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(120deg, rgba(255, 255, 255, 0.12), transparent 22%, transparent 78%, rgba(255, 255, 255, 0.05));
    pointer-events: none;
}

.eyebrow,
.kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.75rem;
    color: #9fe8da;
}

.hero-panel h1,
.topbar h1,
.card-head h2,
.auth-card h2 {
    margin: 0.5rem 0 0;
    font-family: var(--font-display);
    line-height: 1.05;
}

.hero-panel h1 {
    max-width: 13ch;
    font-size: clamp(2.8rem, 6vw, 5rem);
}

.hero-panel p,
.card-head p,
.topbar p,
.auth-card p,
.metric-card small,
.auth-footnote {
    color: var(--muted);
    line-height: 1.7;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.hero-metrics article {
    padding: 1rem;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-metrics strong,
.metric-card strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.auth-card {
    max-width: 520px;
    justify-self: end;
}

.card-head {
    display: grid;
    gap: 0.35rem;
    margin-bottom: 1.2rem;
}

.card-head.compact {
    margin-bottom: 1rem;
}

.card-head.split,
.topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.form-grid {
    display: grid;
    gap: 1rem;
}

.form-grid-compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.slim-form {
    margin-top: 1rem;
}

.field {
    display: grid;
    gap: 0.45rem;
}

.field span {
    color: #d4ece6;
    font-size: 0.92rem;
}

.field input,
.field select {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 0.95rem 1rem;
    background: rgba(5, 14, 22, 0.66);
    color: var(--text);
    outline: none;
    transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.field input:focus,
.field select:focus {
    border-color: rgba(46, 211, 173, 0.85);
    box-shadow: 0 0 0 4px rgba(46, 211, 173, 0.12);
    transform: translateY(-1px);
}

.span-2 {
    grid-column: span 2;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    min-height: 48px;
    border: 0;
    border-radius: 999px;
    padding: 0 1.2rem;
    cursor: pointer;
    transition: transform 180ms ease, box-shadow 180ms ease, opacity 180ms ease;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.24);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #4be9c3 100%);
    color: #052119;
    font-weight: 800;
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary) 0%, #ffd07a 100%);
    color: #24160a;
    font-weight: 800;
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.09);
}

.btn-ghost.danger {
    color: #ffd0ca;
    border-color: rgba(255, 111, 97, 0.34);
}

.btn-lg {
    min-height: 54px;
}

.auth-footnote {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar {
    padding: 1rem 0 0.3rem;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.metric-card {
    padding: 1.25rem;
}

.metric-card span {
    color: var(--muted);
    font-size: 0.92rem;
}

.metric-card strong {
    font-size: clamp(1.4rem, 4vw, 2.2rem);
    margin: 0.35rem 0;
}

.content-grid {
    display: grid;
    gap: 1rem;
}

.dashboard-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.admin-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.status-strip,
.button-row,
.chip-row,
.course-chip-row {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.wrap-row {
    margin-top: 1rem;
}

.status-strip {
    margin-bottom: 1rem;
    color: var(--muted);
}

.status-pill,
.chip,
.live-dot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 0.45rem 0.9rem;
    font-size: 0.84rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.status-idle,
.chip {
    background: rgba(255, 255, 255, 0.05);
}

.status-running,
.status-completed,
.highlight,
.live-dot {
    background: rgba(46, 211, 173, 0.14);
    color: #96f2dd;
}

.status-pending,
.status-cancel_requested {
    background: rgba(255, 182, 72, 0.14);
    color: #ffd48d;
}

.status-stopped,
.status-failed,
.danger {
    background: rgba(255, 111, 97, 0.14);
    color: #ffcec7;
}

.live-dot {
    position: relative;
    gap: 0.4rem;
    font-family: var(--font-display);
    letter-spacing: 0.08em;
}

.live-dot::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 0 0 rgba(150, 242, 221, 0.65);
    animation: pulse 2.1s infinite;
}

.course-table-wrap {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    text-align: left;
    padding: 0.95rem 0.85rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.data-table th {
    color: #b8d4d4;
    font-size: 0.9rem;
}

.inline-action {
    border: 0;
    background: transparent;
    color: #ffd0ca;
    cursor: pointer;
    padding: 0;
}

.empty-cell,
.empty-mini,
.empty-state-card {
    color: var(--muted);
}

.log-console {
    min-height: 360px;
    max-height: 540px;
    overflow: auto;
    padding: 1rem;
    border-radius: 22px;
    background: rgba(4, 10, 16, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.06);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.log-line {
    display: grid;
    gap: 0.25rem;
    padding: 0.8rem 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
    font-size: 0.92rem;
}

.log-line:last-child {
    border-bottom: 0;
}

.log-meta {
    color: #7ea4aa;
    font-size: 0.78rem;
}

.level-error {
    color: #ffb5ac;
}

.level-warning {
    color: #ffd59a;
}

.level-info {
    color: #d8ece9;
}

.level-success {
    color: #97f4dd;
}

.muted {
    color: var(--muted);
}

.user-card-grid {
    display: grid;
    gap: 1rem;
}

.user-card {
    padding: 1.25rem;
}

.user-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.user-card h3 {
    margin: 0;
    font-family: var(--font-display);
}

.user-card p {
    margin: 0.35rem 0 0;
    color: var(--muted);
}

.course-list {
    display: grid;
    gap: 0.65rem;
    margin-top: 1rem;
}

.course-chip-row {
    justify-content: space-between;
    padding: 0.8rem 0.95rem;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
}

.chip-row.tight {
    margin-top: 0.85rem;
}

.accent-amber {
    box-shadow: 0 24px 70px rgba(255, 182, 72, 0.16);
}

.reveal-up {
    opacity: 0;
    transform: translateY(22px);
    animation: revealUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.delay-1 {
    animation-delay: 0.08s;
}

.delay-2 {
    animation-delay: 0.16s;
}

.delay-3 {
    animation-delay: 0.24s;
}

.delay-4 {
    animation-delay: 0.32s;
}

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

@keyframes drift {
    0%,
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    50% {
        transform: translate3d(16px, -18px, 0) scale(1.05);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(150, 242, 221, 0.65);
    }
    70% {
        box-shadow: 0 0 0 14px rgba(150, 242, 221, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(150, 242, 221, 0);
    }
}

@media (max-width: 1100px) {
    .auth-layout,
    .dashboard-grid,
    .admin-grid,
    .metric-grid,
    .hero-metrics {
        grid-template-columns: 1fr;
    }

    .auth-card {
        justify-self: stretch;
        max-width: none;
    }

    .span-2 {
        grid-column: auto;
    }
}

@media (max-width: 760px) {
    .page-shell {
        width: min(100% - 1rem, 100%);
        padding-top: 1rem;
        padding-bottom: 2rem;
    }

    .hero-panel,
    .auth-card,
    .card,
    .user-card,
    .empty-state-card {
        padding: 1.2rem;
        border-radius: 22px;
    }

    .card-head.split,
    .topbar,
    .user-card-head {
        flex-direction: column;
    }

    .form-grid-compact {
        grid-template-columns: 1fr;
    }

    .button-row form,
    .button-row .btn,
    .btn {
        width: 100%;
    }

    .button-row {
        width: 100%;
    }

    .log-console {
        min-height: 280px;
    }
}