* {
    box-sizing: border-box;
}

:root {
    --bg: #eef4f8;
    --surface-solid: #ffffff;
    --border: rgba(148, 163, 184, 0.24);
    --text: #14213d;
    --text-muted: #5b6b83;
    --accent: #ea580c;
    --accent-soft: rgba(234, 88, 12, 0.12);
    --shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
    --radius-lg: 24px;
    --radius-md: 18px;
}

html {
    min-height: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(234, 88, 12, 0.16), transparent 28%),
        radial-gradient(circle at bottom right, rgba(14, 116, 144, 0.14), transparent 22%),
        var(--bg);
}

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

code {
    background: #e9eef5;
    border-radius: 6px;
    padding: 2px 6px;
}

.theme-guest {
    background:
        radial-gradient(circle at top left, rgba(249, 115, 22, 0.22), transparent 30%),
        linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
}

.theme-auth {
    background:
        radial-gradient(circle at top left, rgba(249, 115, 22, 0.14), transparent 24%),
        radial-gradient(circle at bottom right, rgba(14, 116, 144, 0.14), transparent 22%),
        var(--bg);
}

.shell {
    max-width: 960px;
    margin: 0 auto;
    padding: 32px 20px 48px;
}

.shell-guest {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.panel {
    background: var(--surface-solid);
    border: 1px solid rgba(215, 224, 234, 0.9);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    padding: 24px;
}

.panel-guest {
    width: min(100%, 460px);
}

.panel-rich {
    padding: 28px;
}

.stack {
    display: grid;
    gap: 12px;
    margin-top: 20px;
}

.alert {
    border-radius: 12px;
    padding: 12px 14px;
    margin-top: 16px;
}

.alert-error {
    background: #fff1f2;
    border: 1px solid #fecdd3;
    color: #9f1239;
}

input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    background: #ffffff;
}

.field-error {
    margin: -4px 0 0;
    color: #be123c;
    font-size: 0.92rem;
}

button {
    border: 0;
    border-radius: 10px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    color: #ffffff;
    cursor: pointer;
    font-weight: 600;
}

.button-ghost {
    background: transparent;
    border: 1px solid rgba(100, 116, 139, 0.35);
    color: var(--text);
}

.eyebrow {
    margin: 0 0 10px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.72rem;
    color: var(--text-muted);
}

.app-shell {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    min-height: 100vh;
    gap: 24px;
    padding: 24px;
}

.sidebar {
    position: sticky;
    top: 24px;
    align-self: start;
    height: calc(100vh - 48px);
    overflow: auto;
    background: rgba(15, 23, 42, 0.94);
    color: #f8fafc;
    border-radius: 28px;
    padding: 24px 18px;
    box-shadow: 0 30px 80px rgba(15, 23, 42, 0.28);
}

.sidebar__brand {
    margin-bottom: 24px;
}

.brand {
    font-weight: 700;
}

.brand-block {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand__badge {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: linear-gradient(135deg, #fb923c 0%, #ea580c 100%);
    color: #fff7ed;
    font-weight: 800;
}

.brand-block small {
    display: block;
    margin-top: 4px;
    color: rgba(226, 232, 240, 0.76);
}

.sidebar__profile {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.05);
    margin-bottom: 24px;
}

.sidebar__profile p {
    margin: 4px 0 0;
    color: rgba(226, 232, 240, 0.76);
}

.avatar {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: rgba(251, 146, 60, 0.16);
    color: #fdba74;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
}

.sidebar__nav {
    display: grid;
    gap: 18px;
}

.nav-group__title {
    margin: 0 0 10px;
    padding: 0 10px;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: rgba(148, 163, 184, 0.78);
}

.nav-group__items {
    display: grid;
    gap: 8px;
}

.nav-item,
.nav-item summary,
.nav-submenu__link {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    border-radius: 14px;
    padding: 12px 14px;
    color: rgba(241, 245, 249, 0.9);
}

.nav-item {
    border: 1px solid transparent;
}

.nav-item:hover,
.nav-item summary:hover,
.nav-submenu__link:hover {
    background: rgba(255, 255, 255, 0.06);
}

.nav-item.is-active,
.nav-submenu__link.is-active {
    background: linear-gradient(135deg, rgba(251, 146, 60, 0.22), rgba(234, 88, 12, 0.15));
    border-color: rgba(251, 146, 60, 0.2);
    color: #ffffff;
}

.nav-item--collapsible {
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.03);
}

.nav-item--collapsible summary {
    list-style: none;
    cursor: pointer;
}

.nav-item--collapsible summary::-webkit-details-marker {
    display: none;
}

.nav-submenu {
    display: grid;
    gap: 6px;
    padding: 0 8px 10px 8px;
}

.nav-submenu__link {
    padding-left: 16px;
    font-size: 0.95rem;
    color: rgba(226, 232, 240, 0.78);
}

.app-main {
    min-width: 0;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
    padding: 28px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid var(--border);
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 48px rgba(15, 23, 42, 0.08);
}

.app-header h1 {
    margin: 0;
    font-size: clamp(1.6rem, 2.8vw, 2.4rem);
}

.app-header__actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.app-header__identity {
    text-align: right;
}

.app-header__identity span {
    display: block;
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.app-content {
    display: grid;
    gap: 22px;
}

.hero-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    padding: 28px;
    border-radius: 28px;
    background: linear-gradient(135deg, #fffaf5 0%, #ffffff 100%);
    border: 1px solid rgba(251, 146, 60, 0.18);
    box-shadow: 0 26px 60px rgba(249, 115, 22, 0.09);
}

.hero-card h2 {
    margin: 0 0 10px;
    font-size: clamp(1.5rem, 3vw, 2.4rem);
}

.hero-card__lead {
    margin: 0;
    color: var(--text-muted);
    max-width: 720px;
}

.hero-card__meta {
    display: grid;
    gap: 8px;
    min-width: 220px;
    align-content: start;
}

.hero-card__meta span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 10px 14px;
    background: var(--surface-solid);
    border: 1px solid rgba(251, 146, 60, 0.16);
    color: var(--text-muted);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.stat-card {
    padding: 24px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid var(--border);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
}

.stat-card p {
    margin: 0 0 10px;
    color: var(--text-muted);
}

.stat-card strong {
    font-size: 1.8rem;
}

.panel-rich__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.panel-rich__header h3 {
    margin: 0;
}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.menu-group-card {
    padding: 20px;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.9));
    border: 1px solid rgba(203, 213, 225, 0.76);
}

.menu-group-card h4 {
    margin: 0 0 16px;
}

.menu-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
    border-top: 1px solid rgba(226, 232, 240, 0.9);
}

.menu-row:first-of-type {
    border-top: 0;
    padding-top: 0;
}

.menu-row p {
    margin: 4px 0 0;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.menu-chip {
    white-space: nowrap;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 700;
}

@media (max-width: 1100px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
        height: auto;
    }
}

@media (max-width: 768px) {
    .app-shell {
        padding: 16px;
        gap: 16px;
    }

    .app-header,
    .hero-card,
    .panel,
    .stat-card {
        padding: 20px;
    }

    .app-header,
    .hero-card {
        grid-template-columns: 1fr;
    }

    .app-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .app-header__actions {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }

    .app-header__identity {
        text-align: left;
    }

    .stats-grid,
    .menu-grid {
        grid-template-columns: 1fr;
    }
}