/* ═══════════════════════════════════════════════════════════
   Smart Reviews — Admin Stylesheet
   Material Design 3 Inspired
   ═══════════════════════════════════════════════════════════ */

/* ── M3 Color Tokens ───────────────────────────────────── */
:root {
    /* Primary */
    --md-primary:             #1B6EF3;
    --md-on-primary:          #FFFFFF;
    --md-primary-container:   #D6E3FF;
    --md-on-primary-container:#001B3E;

    /* Secondary */
    --md-secondary:            #565F71;
    --md-on-secondary:         #FFFFFF;
    --md-secondary-container:  #DAE2F9;
    --md-on-secondary-container:#131C2B;

    /* Tertiary */
    --md-tertiary:             #6F5575;
    --md-on-tertiary:          #FFFFFF;
    --md-tertiary-container:   #F9D8FE;
    --md-on-tertiary-container:#28132E;

    /* Error */
    --md-error:                #BA1A1A;
    --md-on-error:             #FFFFFF;
    --md-error-container:      #FFDAD6;

    /* Surface */
    --md-surface:              #F8F9FF;
    --md-surface-dim:          #D8DAE3;
    --md-surface-bright:       #F8F9FF;
    --md-surface-container-lowest:  #FFFFFF;
    --md-surface-container-low:     #F2F3FC;
    --md-surface-container:         #ECEDF6;
    --md-surface-container-high:    #E6E8F1;
    --md-surface-container-highest: #E1E2EB;
    --md-on-surface:           #191C20;
    --md-on-surface-variant:   #44474E;
    --md-outline:              #74777F;
    --md-outline-variant:      #C4C6D0;

    /* Inverse */
    --md-inverse-surface:      #2E3036;
    --md-inverse-on-surface:   #EFF0F9;
    --md-inverse-primary:      #A9C7FF;

    /* Elevation shadows */
    --md-elevation-1: 0 1px 3px 1px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.12);
    --md-elevation-2: 0 2px 6px 2px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.12);
    --md-elevation-3: 0 4px 8px 3px rgba(0,0,0,.08), 0 1px 3px rgba(0,0,0,.12);

    /* Shape */
    --md-shape-xs:  4px;
    --md-shape-sm:  8px;
    --md-shape-md:  12px;
    --md-shape-lg:  16px;
    --md-shape-xl:  28px;
    --md-shape-full:9999px;

    /* Motion */
    --md-motion-standard: cubic-bezier(0.2, 0, 0, 1);
    --md-motion-duration-short:  200ms;
    --md-motion-duration-medium: 400ms;

    /* Typography */
    --md-font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ── Reset & Base ──────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html { font-size: 16px; }

body {
    font-family: var(--md-font-family);
    background: var(--md-surface);
    color: var(--md-on-surface);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ── Top App Bar ───────────────────────────────────────── */
.app-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 64px;
    background: var(--md-surface);
    border-bottom: 1px solid var(--md-outline-variant);
    transition: box-shadow var(--md-motion-duration-short) var(--md-motion-standard);
}

.app-bar.scrolled {
    box-shadow: var(--md-elevation-2);
}

.app-bar__title {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--md-on-surface);
    letter-spacing: -0.01em;
}

.app-bar__title span {
    color: var(--md-primary);
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border: none;
    cursor: pointer;
    border-radius: var(--md-shape-full);
    padding: 10px 24px;
    transition: all var(--md-motion-duration-short) var(--md-motion-standard);
    text-decoration: none;
    line-height: 1.4;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.38;
    pointer-events: none;
}

.btn--filled {
    background: var(--md-primary);
    color: var(--md-on-primary);
}
.btn--filled:hover {
    box-shadow: var(--md-elevation-1);
    filter: brightness(1.08);
}
.btn--filled:active {
    filter: brightness(0.92);
}

.btn--tonal {
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
}
.btn--tonal:hover {
    box-shadow: var(--md-elevation-1);
    filter: brightness(0.96);
}

.btn--outlined {
    background: transparent;
    color: var(--md-primary);
    border: 1px solid var(--md-outline);
}
.btn--outlined:hover {
    background: rgba(27, 110, 243, 0.08);
}

.btn--text {
    background: transparent;
    color: var(--md-primary);
    padding: 10px 12px;
}
.btn--text:hover {
    background: rgba(27, 110, 243, 0.08);
}

.btn--danger {
    background: var(--md-error-container);
    color: var(--md-error);
}
.btn--danger:hover {
    box-shadow: var(--md-elevation-1);
    filter: brightness(0.96);
}

.btn--icon {
    width: 40px;
    height: 40px;
    padding: 8px;
    border-radius: var(--md-shape-full);
    justify-content: center;
}

.btn--sm {
    font-size: 0.8125rem;
    padding: 6px 16px;
}

/* ── Cards ─────────────────────────────────────────────── */
.card {
    background: var(--md-surface-container-lowest);
    border-radius: var(--md-shape-md);
    box-shadow: var(--md-elevation-1);
    padding: 20px;
    transition: box-shadow var(--md-motion-duration-short) var(--md-motion-standard);
}

.card:hover {
    box-shadow: var(--md-elevation-2);
}

.card--outlined {
    box-shadow: none;
    border: 1px solid var(--md-outline-variant);
}
.card--outlined:hover {
    box-shadow: var(--md-elevation-1);
}

/* ── Inputs ────────────────────────────────────────────── */
.input-field {
    position: relative;
    margin-bottom: 4px;
}

.input-field input {
    width: 100%;
    padding: 16px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--md-on-surface);
    background: transparent;
    border: 1px solid var(--md-outline);
    border-radius: var(--md-shape-xs);
    outline: none;
    transition: border-color var(--md-motion-duration-short) var(--md-motion-standard);
}

.input-field input:focus {
    border-color: var(--md-primary);
    border-width: 2px;
    padding: 15px;
}

.input-field label {
    position: absolute;
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
    font-size: 1rem;
    color: var(--md-on-surface-variant);
    pointer-events: none;
    background: var(--md-surface-container-lowest);
    padding: 0 4px;
    transition: all var(--md-motion-duration-short) var(--md-motion-standard);
}

.input-field input:focus + label,
.input-field input:not(:placeholder-shown) + label {
    top: 0;
    font-size: 0.75rem;
    color: var(--md-primary);
}

/* ── Layout ────────────────────────────────────────────── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.grid {
    display: grid;
    gap: 16px;
}

.grid--2 { grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

/* ── Login Page ────────────────────────────────────────── */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--md-primary-container) 0%, var(--md-surface) 60%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    padding: 40px 32px;
    text-align: center;
}

.login-card__icon {
    width: 64px;
    height: 64px;
    background: var(--md-primary);
    color: var(--md-on-primary);
    border-radius: var(--md-shape-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 28px;
}

.login-card__title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--md-on-surface);
}

.login-card__subtitle {
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
    margin-bottom: 32px;
}

.login-card .input-field {
    margin-bottom: 24px;
}

.login-card .btn {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
    font-size: 0.9375rem;
}

.login-error {
    color: var(--md-error);
    font-size: 0.8125rem;
    margin-top: 12px;
    min-height: 20px;
}

/* ── Stats Chips ───────────────────────────────────────── */
.stat-chips {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.stat-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--md-shape-sm);
    background: var(--md-surface-container);
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
}

.stat-chip__value {
    font-weight: 600;
    color: var(--md-on-surface);
}

/* ── Properties Section ────────────────────────────────── */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.section-title {
    font-size: 1.375rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.property-card {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.property-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.property-card__name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--md-on-surface);
    word-break: break-word;
}

.property-card__place-id {
    font-size: 0.75rem;
    color: var(--md-on-surface-variant);
    font-family: 'Fira Code', 'Cascadia Code', monospace;
    word-break: break-all;
}

.property-card__stats {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.property-card__stat {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
}

.property-card__stat strong {
    color: var(--md-on-surface);
}

.property-card__actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: auto;
}

.rating-stars {
    display: inline-flex;
    gap: 2px;
    color: #FBBC04;
    font-size: 1rem;
}

.synced-time {
    font-size: 0.75rem;
    color: var(--md-on-surface-variant);
    font-style: italic;
}

/* ── Dialog / Modal ────────────────────────────────────── */
.dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--md-motion-duration-short) var(--md-motion-standard);
}

.dialog-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.dialog {
    background: var(--md-surface-container-high);
    border-radius: var(--md-shape-xl);
    min-width: 320px;
    max-width: 520px;
    width: 90%;
    padding: 24px;
    box-shadow: var(--md-elevation-3);
    transform: scale(0.9);
    transition: transform var(--md-motion-duration-medium) var(--md-motion-standard);
}

.dialog-overlay.active .dialog {
    transform: scale(1);
}

.dialog__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--md-on-surface);
}

.dialog__content {
    margin-bottom: 24px;
}

.dialog__content .input-field {
    margin-bottom: 16px;
}

.dialog__content .input-field label {
    background: var(--md-surface-container-high);
}

.dialog__actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ── Reviews Panel ─────────────────────────────────────── */
.reviews-panel {
    position: fixed;
    top: 0;
    right: -600px;
    width: 100%;
    max-width: 560px;
    height: 100vh;
    background: var(--md-surface-container-lowest);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.12);
    z-index: 200;
    display: flex;
    flex-direction: column;
    transition: right var(--md-motion-duration-medium) var(--md-motion-standard);
}

.reviews-panel.active {
    right: 0;
}

.reviews-panel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--md-outline-variant);
    flex-shrink: 0;
}

.reviews-panel__title {
    font-size: 1.125rem;
    font-weight: 600;
}

.reviews-panel__body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 24px;
}

.review-card {
    display: flex;
    gap: 14px;
    padding: 16px 0;
    border-bottom: 1px solid var(--md-outline-variant);
}

.review-card:last-child {
    border-bottom: none;
}

.review-card__avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--md-shape-full);
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    flex-shrink: 0;
    overflow: hidden;
}

.review-card__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.review-card__content {
    flex: 1;
    min-width: 0;
}

.review-card__author {
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 4px;
}

.review-card__time {
    font-size: 0.75rem;
    color: var(--md-on-surface-variant);
    margin-bottom: 8px;
}

.review-card__text {
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
    line-height: 1.5;
}

.review-card__stars {
    margin-bottom: 6px;
}

/* ── Overlay for side-panel ────────────────────────────── */
.panel-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 199;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--md-motion-duration-short) var(--md-motion-standard);
}

.panel-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* ── Snackbar ──────────────────────────────────────────── */
.snackbar {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--md-inverse-surface);
    color: var(--md-inverse-on-surface);
    padding: 14px 24px;
    border-radius: var(--md-shape-xs);
    font-size: 0.875rem;
    box-shadow: var(--md-elevation-3);
    z-index: 300;
    opacity: 0;
    transition: all var(--md-motion-duration-medium) var(--md-motion-standard);
    max-width: 90%;
}

.snackbar.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ── Spinner ───────────────────────────────────────────── */
.spinner {
    width: 20px;
    height: 20px;
    border: 2.5px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

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

/* ── Empty State ───────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--md-on-surface-variant);
}

.empty-state__icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state__text {
    font-size: 0.9375rem;
}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 768px) {
    .container { padding: 16px; }
    .grid--2 { grid-template-columns: 1fr; }
    .grid--3 { grid-template-columns: 1fr; }
    .section-header { flex-direction: column; align-items: flex-start; }
    .app-bar { padding: 0 16px; }
    .login-card { padding: 32px 20px; }
    .reviews-panel { max-width: 100%; }
}

/* ── Fade-in Animation ─────────────────────────────────── */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.4s var(--md-motion-standard) both;
}

.fade-in:nth-child(2) { animation-delay: 0.05s; }
.fade-in:nth-child(3) { animation-delay: 0.1s; }
.fade-in:nth-child(4) { animation-delay: 0.15s; }
.fade-in:nth-child(5) { animation-delay: 0.2s; }
.fade-in:nth-child(6) { animation-delay: 0.25s; }