:root {
    --bg: #07111a;
    --bg-soft: #0d1b29;
    --panel: rgba(10, 20, 31, 0.72);
    --panel-strong: rgba(8, 16, 25, 0.88);
    --line: rgba(147, 184, 214, 0.22);
    --line-strong: rgba(147, 184, 214, 0.4);
    --text: #f5f7fb;
    --muted: #9fb1c1;
    --accent: #86d0c2;
    --accent-strong: #b3f2db;
    --error: #ff8b8b;
    --success: #9ae6b4;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
}

body {
    background:
        radial-gradient(circle at top left, rgba(134, 208, 194, 0.12), transparent 26rem),
        radial-gradient(circle at bottom right, rgba(116, 139, 255, 0.1), transparent 28rem),
        linear-gradient(180deg, #08131d 0%, #07111a 100%);
    color: var(--text);
    font-family: "Avenir Next", "Segoe UI", "Noto Sans JP", sans-serif;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select,
textarea {
    font: inherit;
}

.login-shell {
    min-height: 100svh;
}

.login-layout {
    min-height: 100svh;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
}

.login-brand,
.login-form-wrap {
    padding: clamp(2rem, 5vw, 4.5rem);
}

.login-brand {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    position: relative;
}

.login-brand h1 {
    margin: 0;
    max-width: 10ch;
    font-size: clamp(3rem, 7vw, 6.8rem);
    line-height: 0.92;
    letter-spacing: -0.05em;
}

.lede,
.workspace-copy,
.form-copy,
.sidebar-subtle,
.timestamp {
    color: var(--muted);
}

.lede {
    max-width: 34rem;
    margin-top: 1.5rem;
    font-size: 1.05rem;
    line-height: 1.7;
}

.eyebrow,
.section-kicker,
.form-label {
    margin: 0 0 0.9rem;
    color: var(--accent-strong);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.72rem;
}

.hero-lines {
    display: flex;
    gap: 0.75rem;
    margin-top: 2rem;
}

.hero-lines span {
    display: block;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    animation: reveal 1.2s ease forwards;
    transform-origin: left center;
}

.hero-lines span:nth-child(1) { width: 9rem; }
.hero-lines span:nth-child(2) { width: 14rem; animation-delay: 0.12s; }
.hero-lines span:nth-child(3) { width: 6rem; animation-delay: 0.24s; }

.login-form-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, rgba(8, 16, 25, 0.72), rgba(8, 16, 25, 0.86));
    border-left: 1px solid var(--line);
}

.login-form,
.form-panel {
    width: min(100%, 28rem);
    display: grid;
    gap: 1rem;
}

.login-form {
    padding: 2rem 0;
}

label {
    display: grid;
    gap: 0.55rem;
}

label span {
    color: var(--muted);
    font-size: 0.92rem;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text);
    padding: 0.95rem 1rem;
    outline: none;
    transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

textarea {
    resize: vertical;
    min-height: 6rem;
}

select {
    background-color: rgba(8, 16, 25, 0.92);
    color: var(--text);
}

option {
    background-color: #f5f7fb;
    color: #07111a;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.05);
}

input:focus {
    transform: translateY(-1px);
}

.primary-button,
.ghost-button {
    width: fit-content;
    padding: 0.85rem 1.2rem;
    border: 1px solid var(--line-strong);
    cursor: pointer;
    transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.primary-button {
    background: var(--accent);
    color: #07111a;
    font-weight: 600;
}

.ghost-button {
    background: transparent;
    color: var(--text);
}

.primary-button:hover,
.ghost-button:hover {
    transform: translateY(-1px);
    border-color: var(--accent);
}

.shell {
    min-height: 100svh;
    display: grid;
    grid-template-columns: 18rem minmax(0, 1fr);
}

.sidebar {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2rem 1.5rem;
    border-right: 1px solid var(--line);
    background: rgba(4, 10, 16, 0.7);
    backdrop-filter: blur(14px);
}

.sidebar-title {
    margin: 0;
    font-size: 1.35rem;
}

.sidebar-nav {
    display: grid;
    gap: 0.35rem;
    margin: 2rem 0 auto;
}

.sidebar-nav a {
    padding: 0.8rem 0;
    border-top: 1px solid transparent;
    border-bottom: 1px solid var(--line);
    color: var(--muted);
}

.sidebar-nav a.active,
.sidebar-nav a:hover {
    color: var(--text);
    border-top-color: var(--line-strong);
}

.sidebar-foot {
    display: grid;
    gap: 1rem;
}

.sidebar-foot p,
.sidebar-foot ul {
    margin: 0;
}

.sidebar-foot ul {
    padding-left: 1rem;
    color: var(--muted);
}

.workspace {
    padding: 2rem clamp(1.2rem, 4vw, 3rem) 3rem;
}

.workspace-header {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 1rem;
    margin-bottom: 2rem;
}

.workspace-header h1 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.5rem);
    letter-spacing: -0.04em;
}

.workspace-copy {
    max-width: 34rem;
    line-height: 1.7;
}

.workspace-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.single-column {
    grid-template-columns: minmax(0, 1fr);
}

.profile-grid {
    align-items: start;
}

.generate-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(18rem, 0.75fr);
    align-items: start;
}

.strip-panel,
.status-block {
    padding: 1.35rem 1.4rem 1.5rem;
    background: linear-gradient(180deg, rgba(11, 22, 33, 0.72), rgba(8, 16, 25, 0.9));
    border-top: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.signal-list,
.timeline {
    margin: 0;
    padding: 0;
    list-style: none;
}

.signal-list li,
.timeline li,
.metric-line {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.95rem 0;
    border-bottom: 1px solid var(--line);
}

.signal-list li span,
.timeline li span,
.metric-line span {
    color: var(--muted);
}

.timeline li strong,
.signal-list li strong,
.metric-line strong {
    font-weight: 600;
}

.message {
    padding: 0.8rem 0.95rem;
    border-left: 2px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.03);
}

.message.error {
    border-color: var(--error);
    color: var(--error);
}

.message.success {
    border-color: var(--success);
    color: var(--success);
}

.panel-title {
    margin: 0;
    font-size: 1.35rem;
}

.generate-form,
.advanced-body {
    display: grid;
    gap: 1rem;
}

.generate-form-head,
.gallery-head,
.action-row {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 1rem;
}

.inline-field {
    min-width: 16rem;
}

.compact-grid,
.meta-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.advanced-block {
    border-top: 1px solid var(--line);
    padding-top: 1rem;
}

.advanced-block summary {
    cursor: pointer;
    color: var(--accent-strong);
}

.preset-list {
    display: grid;
    gap: 0.75rem;
}

.preset-item {
    display: grid;
    gap: 0.2rem;
    padding: 0.95rem 0;
    border-top: 1px solid transparent;
    border-bottom: 1px solid var(--line);
    color: var(--muted);
}

.preset-item.active,
.preset-item:hover {
    color: var(--text);
    border-top-color: var(--line-strong);
}

.gallery-list {
    display: grid;
    gap: 1.5rem;
}

.gallery-entry {
    display: grid;
    grid-template-columns: minmax(18rem, 24rem) minmax(0, 1fr);
    gap: 1.25rem;
    align-items: start;
}

.gallery-visual {
    min-height: 18rem;
    background: linear-gradient(180deg, rgba(11, 22, 33, 0.72), rgba(8, 16, 25, 0.9));
    border-top: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.gallery-visual img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-placeholder {
    min-height: 18rem;
    display: grid;
    place-items: center;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.meta-grid div {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
}

.meta-grid span {
    display: block;
    color: var(--muted);
    margin-bottom: 0.35rem;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.45rem 0.75rem;
    border: 1px solid var(--line-strong);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.72rem;
}

.status-waiting,
.status-pending {
    color: #f9cb6b;
}

.status-running {
    color: var(--accent-strong);
}

.status-failed,
.status-error,
.status-canceled {
    color: var(--error);
}

.status-completed,
.status-finished,
.status-success {
    color: var(--success);
}

code {
    font-family: "IBM Plex Mono", "SFMono-Regular", monospace;
    color: var(--accent-strong);
}

@keyframes reveal {
    from {
        transform: scaleX(0);
        opacity: 0;
    }
    to {
        transform: scaleX(1);
        opacity: 1;
    }
}

@media (max-width: 960px) {
    .login-layout,
    .shell {
        grid-template-columns: 1fr;
    }

    .login-form-wrap {
        border-left: 0;
        border-top: 1px solid var(--line);
    }

    .sidebar {
        gap: 1.5rem;
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .workspace-header,
    .metric-line,
    .signal-list li,
    .timeline li {
        flex-direction: column;
        align-items: start;
    }

    .workspace-grid,
    .generate-grid,
    .compact-grid,
    .meta-grid,
    .gallery-entry {
        grid-template-columns: 1fr;
    }

    .generate-form-head,
    .gallery-head,
    .action-row {
        flex-direction: column;
        align-items: start;
    }

    .inline-field {
        min-width: 100%;
        width: 100%;
    }
}