:root {
    color-scheme: dark;
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    --app-page-bg: #02070f;
    --app-page-bg-alt: #081120;
    --app-surface: rgba(8, 17, 37, 0.96);
    --app-surface-strong: #081225;
    --app-surface-soft: rgba(76, 141, 232, 0.12);
    --app-surface-soft-strong: rgba(76, 141, 232, 0.2);
    --app-surface-muted: rgba(9, 21, 43, 0.95);
    --app-input-bg: rgba(15, 23, 42, 0.95);
    --app-border: rgba(148, 163, 184, 0.18);
    --app-border-strong: rgba(76, 141, 232, 0.28);
    --app-text-primary: #f8fafc;
    --app-text-secondary: #e2e8f0;
    --app-text-muted: #94a3b8;
    --app-accent: #4c8de8;
    --app-accent-strong: #1f63b8;
    --app-accent-hover: #1954a1;
    --app-accent-soft: rgba(76, 141, 232, 0.18);
    --app-success: #22c55e;
    --app-success-soft: rgba(34, 197, 94, 0.14);
    --app-success-border: rgba(34, 197, 94, 0.3);
    --app-warning: #f59e0b;
    --app-danger: #f87171;
    --app-danger-soft: rgba(248, 113, 113, 0.12);
    --app-danger-border: rgba(248, 113, 113, 0.3);
    --app-danger-text: #fda4af;
    --app-shadow: 0 30px 80px -40px rgba(2, 7, 18, 0.45);
    --app-radius-lg: 1rem;
    --app-radius-xl: 1.5rem;
    --app-transition: 180ms ease;
}

* {
    box-sizing: border-box;
}

body {
    background: var(--app-page-bg);
    color: var(--app-text-primary);
    font-family: inherit;
}

body.auth-page {
    margin: 0;
    min-height: 100vh;
    background: radial-gradient(circle at top, rgba(76, 141, 232, 0.16), transparent 30%), linear-gradient(180deg, #030815 0%, #081628 100%);
    color: var(--app-text-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 0.7rem;
    background-attachment: fixed;
}

body.auth-login-page {
    justify-content: center;
}

body.auth-profile-page {
    justify-content: flex-start;
}

.app-shell {
    width: 100%;
    max-width: 28rem;
    margin: 0 auto;
}

.app-panel {
    width: 100%;
    border-radius: var(--app-radius-xl);
    overflow: hidden;
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    box-shadow: var(--app-shadow);
    backdrop-filter: blur(18px);
}

.app-panel--soft {
    background: var(--app-surface-strong);
    border-color: var(--app-border-strong);
}

.app-panel-body {
    padding: 1.5rem;
}

.app-heading {
    margin: 0;
    font-size: 1.9rem;
    line-height: 1.15;
    color: var(--app-text-primary);
}

.app-subheading {
    margin: 0 0 1rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--app-text-secondary);
}

.app-section {
    display: grid;
    gap: 1rem;
}

.app-form {
    display: grid;
    gap: 1.25rem;
}

.app-field {
    display: block;
    color: var(--app-text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
}

.app-input {
    width: 100%;
    border-radius: var(--app-radius-lg);
    border: 1px solid var(--app-border);
    background: var(--app-input-bg);
    color: var(--app-text-primary);
    padding: 1rem;
    margin-top: 0.75rem;
    outline: none;
    transition: border-color var(--app-transition), box-shadow var(--app-transition), background var(--app-transition);
}

.app-input::placeholder {
    color: rgba(241, 245, 249, 0.56);
}

.app-input:focus {
    border-color: var(--app-accent);
    box-shadow: 0 0 0 4px var(--app-accent-soft);
}

.app-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    border: none;
    border-radius: 0.75rem;
    padding: 0.9rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--app-text-primary);
    cursor: pointer;
    background: linear-gradient(135deg, var(--app-accent) 0%, var(--app-accent-strong) 100%);
    transition: transform var(--app-transition), box-shadow var(--app-transition), background var(--app-transition);
}

.app-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(28, 86, 168, 0.26);
}

.app-button:active {
    transform: translateY(0);
    box-shadow: none;
}

.app-button--ghost {
    background: var(--app-surface-soft);
    border: 1px solid var(--app-border-strong);
}

.app-alert {
    margin-top: 1.5rem;
    border-radius: var(--app-radius-lg);
    background: var(--app-surface-soft);
    border: 1px solid var(--app-border-strong);
    padding: 1rem;
    color: var(--app-text-primary);
}

.app-alert--error {
    color: var(--app-danger-text);
    background: var(--app-danger-soft);
    border-color: var(--app-danger-border);
}

.app-alert--success {
    color: #86efac;
    background: var(--app-success-soft);
    border-color: var(--app-success-border);
}

.app-card {
    margin-top: 1.5rem;
    border-radius: var(--app-radius-xl);
    border: 1px solid var(--app-border-strong);
    background: rgba(9, 21, 43, 0.94);
    padding: 1.25rem;
    color: var(--app-text-secondary);
}

.app-stack {
    display: grid;
    gap: 1rem;
}

.app-list-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.75rem;
    color: var(--app-text-secondary);
}

.app-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 32rem;
}

.app-table th,
.app-table td {
    padding: 1rem 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    text-align: left;
    vertical-align: middle;
}

.app-table th {
    color: var(--app-text-primary);
    font-weight: 700;
    background: rgba(8, 17, 37, 0.96);
}

.app-table tbody tr:hover {
    background: rgba(76, 141, 232, 0.08);
}

.app-surface-card {
    border-radius: var(--app-radius-xl);
    border: 1px solid var(--app-border-strong);
    background: rgba(9, 21, 43, 0.95);
    padding: 1.25rem;
}

.app-surface-card--soft {
    background: rgba(8, 17, 37, 0.86);
}

.app-choice-list {
    display: grid;
    gap: 0.75rem;
    max-height: calc(100vh - 16rem);
    overflow-y: auto;
    padding-right: 0.25rem;
    margin-top: 0.75rem;
}

.app-choice-button {
    flex: 0 0 auto;
    min-width: 11rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--app-border-strong);
    background: var(--app-surface-soft);
    color: var(--app-text-primary);
    border-radius: var(--app-radius-lg);
    font-weight: 700;
    cursor: pointer;
    transition: background var(--app-transition), transform var(--app-transition), border-color var(--app-transition);
}

.app-choice-button:hover {
    background: var(--app-surface-soft-strong);
    transform: translateY(-1px);
}

.app-choice-section {
    min-height: calc(100vh - 16rem);
}

.app-page-brand {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    width: min(70%, 36rem);
}

.app-section-divider {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1rem;
    margin-top: 1.5rem;
}

/* Compatibility aliases for existing views */
.auth-container,
.app-shell {
    width: 100%;
    max-width: 28rem;
    margin: 0 auto;
}

.auth-card,
.app-panel {
    width: 100%;
    border-radius: var(--app-radius-xl);
    overflow: hidden;
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    box-shadow: var(--app-shadow);
    backdrop-filter: blur(18px);
}

.auth-card-light,
.app-panel--soft {
    background: var(--app-surface-strong);
    border-color: var(--app-border-strong);
}

.auth-card-body,
.app-panel-body {
    padding: 1.5rem;
}

.auth-heading,
.app-heading {
    margin: 0;
    font-size: 1.9rem;
    line-height: 1.15;
    color: var(--app-text-primary);
}

.auth-form,
.app-form {
    display: grid;
    gap: 1.25rem;
}

.auth-label,
.app-field {
    display: block;
    color: var(--app-text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
}

.auth-form-control,
.app-input {
    width: 100%;
    border-radius: var(--app-radius-lg);
    border: 1px solid var(--app-border);
    background: var(--app-input-bg);
    color: var(--app-text-primary);
    padding: 1rem;
    margin-top: 0.75rem;
    outline: none;
    transition: border-color var(--app-transition), box-shadow var(--app-transition), background var(--app-transition);
}

.auth-button,
.app-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    border: none;
    border-radius: 0.75rem;
    padding: 0.9rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--app-text-primary);
    cursor: pointer;
    background: linear-gradient(135deg, var(--app-accent) 0%, var(--app-accent-strong) 100%);
    transition: transform var(--app-transition), box-shadow var(--app-transition), background var(--app-transition);
}

.auth-button:hover,
.app-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(28, 86, 168, 0.26);
}

.error-message,
.app-alert--error {
    color: var(--app-danger-text);
    background: var(--app-danger-soft);
    margin-top: 1.3rem;
    border-radius: var(--app-radius-lg);
    border: 2px solid var(--app-danger-border);
    padding: 1rem;
}

.success-message,
.app-alert--success {
    color: #86efac;
    background: var(--app-success-soft);
    margin-top: 1.3rem;
    border-radius: var(--app-radius-lg);
    border: 2px solid var(--app-success-border);
    padding: 1rem;
}

.auth-alert,
.app-alert {
    margin-top: 1.5rem;
    border-radius: var(--app-radius-lg);
    background: var(--app-surface-soft);
    border: 1px solid var(--app-border-strong);
    padding: 1rem;
    color: var(--app-text-primary);
}

.auth-section-title,
.app-subheading {
    margin: 0 0 1rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--app-text-secondary);
}

.auth-info-card,
.app-card {
    margin-top: 1.5rem;
    border-radius: var(--app-radius-xl);
    border: 1px solid var(--app-border-strong);
    background: rgba(9, 21, 43, 0.94);
    padding: 1.25rem;
    color: var(--app-text-secondary);
}

.auth-profile-row,
.app-list-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.75rem;
    color: var(--app-text-secondary);
}

@media (min-width: 640px) {
    body.auth-page {
        padding: 1rem;
    }

    .app-shell,
    .auth-container {
        max-width: 30rem;
    }
}