/**
 * DoughPoint2 - Auth Page Styles
 * Pages: /auth/login, /auth/tenant-select
 *
 * Depends on:
 *   main.css      — design tokens (:root)
 *   dark-mode.css — html.dark token remapping (must load after this file)
 *
 * Does NOT depend on: Alpine.js, Flatpickr, navigation.css, components.css
 */

/* ============================================================================
   RESET (minimal — auth pages have no app chrome)
   ============================================================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

/* ============================================================================
   FULL-VIEWPORT LAYOUT
   ============================================================================ */
html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--color-dark);
    background-color: var(--color-canvas);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* ============================================================================
   BACKGROUND IMAGE LAYER
   Position: fixed, inset 0, below the card.
   Overlay handled by ::after (varies opacity for dark mode).
   Gradient fallback if the photo hasn't been placed yet.
   ============================================================================ */
.auth-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    background:
        url('/static/img/auth-bg.jpg') center / cover no-repeat,
        linear-gradient(135deg, #3d2b1f 0%, #2c1f14 50%, #1a110a 100%);
}

.auth-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    /* Light mode: warm parchment tint over photo */
    background: rgba(250, 248, 245, 0.72);
    transition: background 0.2s ease;
}

/* ============================================================================
   AUTH MAIN WRAPPER
   Centers the card above the background layer.
   ============================================================================ */
.auth-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem 1rem;
}

/* ============================================================================
   CARD
   ============================================================================ */
.auth-card {
    background: rgba(254, 253, 251, 0.96);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    padding: 2.5rem 2rem;
    backdrop-filter: blur(8px) saturate(140%);
    -webkit-backdrop-filter: blur(8px) saturate(140%);
}

/* ============================================================================
   BRAND HEADER
   ============================================================================ */
.auth-brand {
    text-align: center;
    margin-bottom: 0.5rem;
}

.auth-brand__wordmark {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin: 0;
}

.auth-brand__tagline {
    font-size: 0.875rem;
    color: var(--color-muted);
    text-align: center;
    margin: 0.375rem 0 1.75rem;
}

/* ============================================================================
   OAUTH BUTTON  (Sign in with Microsoft)
   ============================================================================ */
.oauth-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1.25rem;
    background-color: var(--color-surface);
    color: var(--color-dark);
    border: 1.5px solid var(--color-border-dark);
    border-radius: 6px;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: border-color 0.15s ease, background-color 0.15s ease,
                box-shadow 0.15s ease;
}

.oauth-button:hover {
    border-color: var(--color-primary);
    background-color: var(--color-light-hover);
    box-shadow: var(--shadow-xs);
}

.oauth-button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================================================
   ERROR CONTAINER
   ============================================================================ */
#error-container {
    margin-bottom: 1.25rem;
}

#error-container:empty {
    display: none;
}

.auth-error {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    background-color: var(--color-danger-bg);
    border: 1px solid var(--color-danger);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    color: var(--color-danger-text);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* ============================================================================
   FOOTER NOTE  (below the oauth button)
   ============================================================================ */
.auth-note {
    text-align: center;
    margin-top: 1.25rem;
    font-size: 0.8125rem;
    color: var(--color-muted);
}

/* ============================================================================
   TENANT SELECT — tenant list
   ============================================================================ */
#tenant-list {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    margin-bottom: 1.5rem;
}

.tenant-option {
    margin: 0;
}

.tenant-button {
    width: 100%;
    padding: 0.875rem 1rem;
    background-color: var(--color-light);
    border: 1.5px solid var(--color-border);
    border-radius: 6px;
    text-align: left;
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease,
                transform 0.1s ease, box-shadow 0.15s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
    color: var(--color-dark);
}

.tenant-button:hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-lighter);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.tenant-button:active {
    transform: translateY(0);
}

.tenant-button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.tenant-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.tenant-name {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--color-dark);
}

.tenant-location {
    font-size: 0.8125rem;
    color: var(--color-muted);
}

.tenant-button svg {
    flex-shrink: 0;
    color: var(--color-muted);
    transition: color 0.15s ease;
}

.tenant-button:hover svg {
    color: var(--color-primary);
}

/* ============================================================================
   SIGN OUT LINK  (tenant select page)
   ============================================================================ */
.auth-signout {
    text-align: center;
}

.logout-link {
    background: transparent;
    color: var(--color-muted);
    border: 1px solid var(--color-border);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    font-family: inherit;
    text-decoration: none;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.logout-link:hover {
    color: var(--color-danger);
    border-color: var(--color-danger);
}

/* ============================================================================
   COPYRIGHT FOOTER
   ============================================================================ */
.auth-footer {
    margin-top: 1.5rem;
    font-size: 0.75rem;
    color: var(--color-muted);
    opacity: 0.75;
    text-align: center;
}

/* ============================================================================
   AUTH SPINNER  (token_redirect callback page)
   ============================================================================ */
.auth-spinner {
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    animation: auth-spin 0.8s linear infinite;
    margin: 0 auto 1.25rem;
}

@keyframes auth-spin {
    to { transform: rotate(360deg); }
}

/* ============================================================================
   LOADING INDICATOR  (HTMX)
   ============================================================================ */
.htmx-indicator {
    display: none;
    text-align: center;
    color: var(--color-primary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.htmx-indicator.htmx-request {
    display: block;
}

/* ============================================================================
   DARK MODE — auth-specific overrides
   Token remapping is already handled by dark-mode.css;
   only structural/photo overlay rules go here.
   ============================================================================ */
html.dark .auth-bg::after {
    background: rgba(20, 18, 16, 0.82);
}

html.dark .auth-card {
    background: rgba(33, 30, 27, 0.96);
    border-color: var(--color-border);
}

html.dark .oauth-button {
    background-color: var(--color-light);
    border-color: var(--color-border-dark);
}

html.dark .oauth-button:hover {
    background-color: var(--color-light-hover);
    border-color: var(--color-primary);
}

html.dark .tenant-button {
    background-color: var(--color-light);
    border-color: var(--color-border);
}

html.dark .tenant-button:hover {
    background-color: var(--color-light-hover);
    border-color: var(--color-primary);
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */
@media (max-width: 480px) {
    .auth-card {
        padding: 2rem 1.25rem;
        border-radius: 10px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .auth-bg::after {
        transition: none;
    }
}