:root {
    --bg-deep: #060916;
    --bg-mid: #08101f;
    --surface-glass: rgba(255, 255, 255, 0.05);
    --surface-glass-strong: rgba(255, 255, 255, 0.08);
    --text-primary: #edf4ff;
    --text-secondary: rgba(237, 244, 255, 0.72);
    --text-muted: rgba(237, 244, 255, 0.48);
    --border-glass: rgba(137, 240, 255, 0.12);
    --accent-cyan: #89f0ff;
    --accent-violet: #8b7cff;
    --accent-gold: #f5c56b;
    --accent-rose: #ff7ac6;
    --font-heading: "Noto Serif", serif;
    --font-brand: "Cormorant Garamond", serif;
    --font-body: "Manrope", sans-serif;
    --font-label: "Space Grotesk", sans-serif;
    --sidebar-width: 280px;
    --thread-width: 760px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

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

body {
    min-height: 100vh;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 50% 50%, rgba(137, 240, 255, 0.05), transparent 58%),
        radial-gradient(circle at 18% 24%, rgba(137, 240, 255, 0.09), transparent 24%),
        radial-gradient(circle at 82% 76%, rgba(139, 124, 255, 0.1), transparent 26%),
        linear-gradient(180deg, var(--bg-deep), var(--bg-mid));
    color: var(--text-primary);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
}

button,
input {
    font: inherit;
}

button {
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

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

[hidden] {
    display: none !important;
}

@keyframes twinkle {
    0%,
    100% {
        opacity: 0.28;
    }

    50% {
        opacity: 0.72;
    }
}

@keyframes drift {
    from {
        background-position: 0 0;
    }

    to {
        background-position: -200px 200px;
    }
}

.starfield {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        radial-gradient(1px 1px at 10% 20%, rgba(255, 255, 255, 0.9), transparent),
        radial-gradient(1px 1px at 30% 40%, rgba(255, 255, 255, 0.78), transparent),
        radial-gradient(2px 2px at 50% 10%, rgba(255, 255, 255, 0.72), transparent),
        radial-gradient(1px 1px at 70% 60%, rgba(255, 255, 255, 0.86), transparent),
        radial-gradient(1px 1px at 90% 30%, rgba(255, 255, 255, 0.76), transparent),
        radial-gradient(2px 2px at 20% 80%, rgba(255, 255, 255, 0.86), transparent),
        radial-gradient(1px 1px at 60% 90%, rgba(255, 255, 255, 0.76), transparent),
        radial-gradient(1px 1px at 80% 20%, rgba(255, 255, 255, 0.8), transparent),
        radial-gradient(1.5px 1.5px at 40% 50%, rgba(255, 255, 255, 0.68), transparent),
        radial-gradient(1px 1px at 15% 75%, rgba(255, 255, 255, 0.8), transparent),
        radial-gradient(1px 1px at 85% 85%, rgba(255, 255, 255, 0.76), transparent),
        radial-gradient(1px 1px at 45% 25%, rgba(255, 255, 255, 0.72), transparent);
    background-size: 300px 300px;
    animation: twinkle 6s infinite alternate, drift 150s linear infinite;
    opacity: 0.4;
    z-index: 0;
}

.side-nav {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 50;
    width: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
    padding: 4.8rem 1rem 1.35rem;
    background: rgba(8, 16, 31, 0.68);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

.brand-block {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding: 0 0.55rem;
}

.brand-link {
    display: grid;
    gap: 0.2rem;
}

.brand-word,
.mobile-brand {
    font-family: var(--font-brand);
    font-weight: 700;
    line-height: 0.92;
    color: #fff;
}

.brand-word {
    font-size: 3.2rem;
    letter-spacing: 0;
}

.mobile-brand {
    font-size: 1.75rem;
}

.brand-word span,
.mobile-brand span {
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.brand-kicker,
.nav-label,
.surface-label,
.runtime-line,
.history-status {
    font-family: var(--font-label);
    font-size: 0.72rem;
    line-height: 1;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.brand-kicker {
    color: rgba(137, 240, 255, 0.78);
}

.new-inquiry-button,
.nav-item,
.account-action,
.icon-button,
.composer-icon,
.send-button,
.suggestion-card,
.message-action {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.new-inquiry-button:hover,
.nav-item:hover,
.account-action:hover,
.icon-button:hover,
.composer-icon:hover,
.send-button:hover,
.suggestion-card:hover,
.message-action:hover {
    transform: translateY(-1px);
    border-color: rgba(137, 240, 255, 0.28);
}

.new-inquiry-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    min-height: 3.25rem;
    border-radius: 0.5rem;
    color: var(--accent-cyan);
    font-family: var(--font-label);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.nav-section,
.history-list,
.account-copy,
.suggestion-copy,
.message-stack,
.assistant-body,
.asset-card {
    display: grid;
}

.nav-section {
    gap: 0.65rem;
}

.history-section {
    min-height: 0;
    flex: 1 1 auto;
}

.section-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
}

.nav-label,
.history-status {
    color: var(--text-muted);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    min-height: 2.9rem;
    padding: 0 0.85rem;
    border-radius: 0.5rem;
    color: var(--text-secondary);
}

.nav-item.is-active {
    color: var(--accent-cyan);
    border-left: 2px solid var(--accent-cyan);
    background: rgba(137, 240, 255, 0.05);
}

.history-list {
    gap: 0.55rem;
    overflow: auto;
    padding-right: 0.15rem;
}

.history-item {
    display: grid;
    gap: 0.22rem;
    padding: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.035);
    color: var(--text-primary);
    text-align: left;
}

.history-item span {
    color: var(--text-muted);
    font-size: 0.78rem;
}

.account-card {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.75rem;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.avatar-orbit {
    width: 2.5rem;
    height: 2.5rem;
    display: grid;
    place-items: center;
    border-radius: 999px;
    border: 1px solid rgba(137, 240, 255, 0.18);
    color: var(--accent-cyan);
    background: rgba(137, 240, 255, 0.08);
}

.account-copy {
    gap: 0.18rem;
    min-width: 0;
}

.account-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: #fff;
    font-size: 0.92rem;
}

.account-state {
    color: var(--text-muted);
    font-family: var(--font-label);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.account-action {
    grid-column: 1 / -1;
    min-height: 2.6rem;
    border-radius: 0.5rem;
    color: var(--accent-cyan);
}

.mobile-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 40;
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1rem;
    background: rgba(8, 16, 31, 0.82);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.icon-button,
.composer-icon,
.send-button {
    width: 2.8rem;
    height: 2.8rem;
    display: grid;
    place-items: center;
    border-radius: 999px;
}

.mobile-close {
    display: none;
}

.observatory-canvas {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    margin-left: var(--sidebar-width);
    padding: 5.6rem 1.5rem 8.5rem;
    display: grid;
    justify-items: center;
    align-content: start;
    gap: 2.2rem;
}

.hero-panel {
    width: min(100%, var(--thread-width));
    text-align: center;
    display: grid;
    gap: 0.9rem;
}

.surface-label {
    margin: 0;
    color: var(--accent-gold);
}

.hero-panel h1 {
    margin: 0;
    font-family: var(--font-heading);
    font-size: 2.9rem;
    line-height: 1.16;
    font-weight: 500;
    letter-spacing: 0;
    color: #fff;
}

.hero-panel p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 1.12rem;
    line-height: 1.6;
}

.suggestion-grid {
    width: min(100%, var(--thread-width));
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.suggestion-card {
    min-height: 12rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.45rem;
    border-radius: 0.75rem;
    text-align: left;
    background: var(--surface-glass);
    border-color: var(--border-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.suggestion-card:hover {
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 30px rgba(137, 240, 255, 0.1);
}

.suggestion-icon {
    width: 2.55rem;
    height: 2.55rem;
    display: grid;
    place-items: center;
    border-radius: 999px;
}

.suggestion-icon.theme-cyan {
    color: var(--accent-cyan);
    background: rgba(137, 240, 255, 0.1);
}

.suggestion-icon.theme-violet {
    color: var(--accent-violet);
    background: rgba(139, 124, 255, 0.1);
}

.suggestion-icon.theme-gold {
    color: var(--accent-gold);
    background: rgba(245, 197, 107, 0.1);
}

.suggestion-icon.theme-rose {
    color: var(--accent-rose);
    background: rgba(255, 122, 198, 0.1);
}

.suggestion-copy {
    gap: 0.35rem;
}

.suggestion-copy strong {
    color: #fff;
    font-size: 1.08rem;
    line-height: 1.45;
    font-weight: 500;
}

.suggestion-copy span {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
}

.thread-panel {
    width: min(100%, var(--thread-width));
    display: grid;
    gap: 1rem;
}

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

.thread-head h2 {
    margin: 0.35rem 0 0;
    font-family: var(--font-heading);
    font-size: 1.55rem;
    line-height: 1.25;
    letter-spacing: 0;
}

.thread-state {
    min-height: 2.2rem;
    display: inline-flex;
    align-items: center;
    padding: 0 0.85rem;
    border: 1px solid rgba(137, 240, 255, 0.14);
    border-radius: 999px;
    color: var(--accent-cyan);
    background: rgba(137, 240, 255, 0.06);
    font-family: var(--font-label);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.message-stack {
    gap: 0.9rem;
}

.message {
    max-width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0.75rem;
    background: rgba(255, 255, 255, 0.045);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.message.user {
    width: fit-content;
    max-width: min(100%, 34rem);
    margin-left: auto;
    background: linear-gradient(135deg, rgba(139, 124, 255, 0.18), rgba(137, 240, 255, 0.08));
}

.message.assistant {
    display: grid;
    gap: 1rem;
}

.message-meta {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.45rem;
    color: var(--text-muted);
    font-family: var(--font-label);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.message p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

.assistant-body {
    gap: 0.75rem;
}

.assistant-body p:first-child {
    color: var(--text-primary);
    font-size: 1.02rem;
}

.asset-card {
    gap: 0.8rem;
    overflow: hidden;
    border: 1px solid var(--border-glass);
    border-radius: 0.75rem;
    background: rgba(255, 255, 255, 0.035);
}

.asset-card img {
    width: 100%;
    max-height: 24rem;
    object-fit: cover;
    display: block;
    background: rgba(0, 0, 0, 0.28);
}

.asset-copy {
    display: grid;
    gap: 0.45rem;
    padding: 0 1rem 1rem;
}

.asset-copy strong {
    color: #fff;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 500;
}

.asset-actions {
    display: flex;
    gap: 0.55rem;
    flex-wrap: wrap;
    margin-top: 0.25rem;
}

.message-action {
    min-height: 2.5rem;
    padding: 0 0.85rem;
    border-radius: 999px;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.04);
}

.message-action:disabled {
    cursor: not-allowed;
    opacity: 0.45;
    transform: none;
}

.composer-dock {
    position: fixed;
    z-index: 42;
    left: var(--sidebar-width);
    right: 0;
    bottom: 0;
    padding: 1rem 1.5rem calc(env(safe-area-inset-bottom) + 1rem);
    pointer-events: none;
    background: linear-gradient(180deg, rgba(6, 9, 22, 0), rgba(6, 9, 22, 0.72) 32%, rgba(6, 9, 22, 0.96));
}

.composer-wrap {
    width: min(100%, var(--thread-width));
    margin: 0 auto;
    pointer-events: auto;
}

.composer-shell {
    min-height: 4.25rem;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.45rem;
    padding: 0.45rem;
    border: 1px solid var(--border-glass);
    border-radius: 999px;
    background: rgba(8, 16, 31, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.composer-shell:focus-within {
    border-color: rgba(137, 240, 255, 0.5);
    box-shadow: 0 0 30px rgba(137, 240, 255, 0.15);
}

.composer-icon {
    color: var(--text-muted);
    background: transparent;
    border-color: transparent;
}

.send-button {
    background: var(--accent-cyan);
    color: var(--bg-deep);
    border-color: transparent;
}

#composerInput {
    width: 100%;
    min-width: 0;
    border: 0;
    outline: 0;
    background: transparent;
    color: #fff;
    font-size: 1rem;
    line-height: 1.5;
}

#composerInput::placeholder {
    color: rgba(237, 244, 255, 0.44);
}

#composerInput:disabled,
.send-button:disabled {
    cursor: not-allowed;
    opacity: 0.52;
}

.runtime-line {
    margin-top: 0.75rem;
    text-align: center;
    color: rgba(237, 244, 255, 0.38);
    font-size: 0.64rem;
}

.sidebar-scrim {
    display: none;
}

body.has-thread .hero-panel {
    text-align: left;
    gap: 0.55rem;
}

body.has-thread .hero-panel h1 {
    font-size: 1.8rem;
}

body.has-thread .hero-panel p {
    font-size: 0.98rem;
}

body.has-thread .suggestion-grid {
    display: none;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 2px solid rgba(137, 240, 255, 0.7);
    outline-offset: 2px;
}

@media (max-width: 920px) {
    .mobile-bar {
        display: flex;
    }

    .side-nav {
        width: min(22rem, 88vw);
        padding-top: 1rem;
        transform: translateX(-102%);
        transition: transform 0.24s ease;
    }

    .side-nav.is-open {
        transform: translateX(0);
    }

    .mobile-close {
        display: grid;
    }

    .sidebar-scrim {
        position: fixed;
        inset: 0;
        z-index: 45;
        display: block;
        border: 0;
        background: rgba(3, 6, 17, 0.64);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.24s ease;
    }

    .sidebar-scrim.is-open {
        opacity: 1;
        pointer-events: auto;
    }

    .observatory-canvas {
        margin-left: 0;
        padding: 6.4rem 1rem 9rem;
    }

    .composer-dock {
        left: 0;
        padding-inline: 1rem;
    }

    .hero-panel h1 {
        font-size: 2.3rem;
    }

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

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

@media (max-width: 620px) {
    .composer-shell {
        border-radius: 1rem;
        grid-template-columns: auto minmax(0, 1fr) auto;
    }

    .composer-icon,
    .send-button {
        width: 2.6rem;
        height: 2.6rem;
    }

    .suggestion-card {
        min-height: 10.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}