body[data-theme="dark"],
body:not([data-theme]) {
    --app-bg: #07111f;
    --app-bg-2: #12233b;
    --app-panel: rgba(255, 255, 255, 0.08);
    --app-panel-border: rgba(255, 255, 255, 0.12);
    --app-text: #ecf2ff;
    --app-muted: #a8b4c8;
    --app-accent: #6fe7dd;
    --app-navbar-bg: rgba(6, 12, 24, 0.88);
}

body[data-theme="light"] {
    --app-bg: #f4f7fb;
    --app-bg-2: #e9eef5;
    --app-panel: rgba(255, 255, 255, 0.95);
    --app-panel-border: rgba(15, 23, 42, 0.12);
    --app-text: #1a1f35;
    --app-muted: #667085;
    --app-accent: #0f766e;
    --app-navbar-bg: rgba(255, 255,  255, 0.96);
}

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

body {
    background: linear-gradient(160deg, var(--app-bg) 0%, var(--app-bg-2) 100%);
    color: var(--app-text);
    font-family: 'Segoe UI', sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    color: var(--app-accent);
}

.text-muted,
.text-body-secondary,
.muted {
    color: var(--app-muted) !important;
}

.app-navbar {
    background: var(--app-navbar-bg);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--app-panel-border);
}

.app-navbar .navbar-brand,
.app-navbar .nav-link {
    color: var(--app-text);
}

.app-navbar .nav-link.active,
.app-navbar .nav-link:hover {
    color: var(--app-accent);
}

body[data-theme="light"] .app-navbar .navbar-toggler {
    border-color: rgba(0, 0, 0, 0.18);
}

body[data-theme="light"] .app-navbar .navbar-toggler-icon {
    filter: invert(1) grayscale(100%);
}

.theme-toggle {
    cursor: pointer;
    padding: 0.4rem 0.6rem;
    border-radius: 0.5rem;
    border: 1px solid var(--app-panel-border);
    background: transparent;
    color: inherit;
}

.app-navbar .btn-outline-light {
    color: var(--app-text);
    border-color: var(--app-panel-border);
    background: transparent;
    font-weight: 600;
}

.panel,
.auth-card,
.card,
.table {
    background: var(--app-panel);
    color: var(--app-text);
    border-color: var(--app-panel-border);
}

.panel,
.auth-card {
    border: 1px solid var(--app-panel-border);
    border-radius: 1.25rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.16);
}

.panel {
    padding: 1.25rem;
}

.auth-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1rem;
}

.auth-card {
    width: min(560px, 100%);
    padding: 1.5rem;
}

.auth-card .form-control,
.auth-card .form-select,
.auth-card textarea,
body[data-theme="light"] .form-control,
body[data-theme="light"] .form-select,
body[data-theme="light"] textarea {
    background: rgba(255, 255, 255, 0.96);
    color: #1f2937;
}

.chip {
    display: inline-flex;
    gap: 0.35rem;
    align-items: center;
    padding: 0.38rem 0.7rem;
    border-radius: 999px;
    background: rgba(111, 231, 221, 0.14);
    color: var(--app-text);
    font-size: 0.82rem;
}

.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--app-text);
}

body[data-theme="light"] .card,
body[data-theme="light"] .table,
body[data-theme="light"] .panel,
body[data-theme="light"] .auth-card {
    background: #ffffff;
    color: #1a1f35;
}

.list-group-item {
    background: transparent;
    color: var(--app-text);
    border-color: var(--app-panel-border);
}

.list-group-item.active {
    background: rgba(111, 231, 221, 0.18);
    border-color: rgba(111, 231, 221, 0.5);
    color: var(--app-text);
}