:root {
    color-scheme: dark;
    --bg: #0d1512;
    --surface: #14201b;
    --surface-soft: #1b2a23;
    --border: #344b40;
    --text: #fffaf1;
    --muted: #b7c3b9;
    --accent: #f2a65a;
    --accent-strong: #df7f3b;
    --violet: #82a88c;
    --success: #84c69b;
    --danger: #e9796b;
}

body {
    min-height: 100vh;
    padding: 0 0 72px;
    color: var(--text);
    background:
        radial-gradient(circle at 82% 18%, rgba(130, 168, 140, 0.16), transparent 30rem),
        radial-gradient(circle at 12% 34%, rgba(242, 166, 90, 0.11), transparent 28rem),
        var(--bg);
}

.app-bar {
    position: sticky;
    z-index: 100;
    top: 0;
    width: 100%;
    background: rgba(13, 21, 18, 0.84);
    border-bottom: 1px solid rgba(109, 129, 158, 0.2);
    backdrop-filter: blur(18px);
}

.app-bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 72px;
    margin: 0 auto;
    padding: 0 clamp(18px, 2.4vw, 40px);
}

.app-title {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
}

.app-title-icon {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    color: #24160d;
    background: linear-gradient(135deg, var(--accent), var(--violet));
    border-radius: 10px;
}

.app-title strong {
    font-size: 0.92rem;
    letter-spacing: -0.015em;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
    text-decoration: none;
}

.brand:hover {
    color: var(--text);
}

.brand-mark {
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    color: #24160d;
    background: linear-gradient(135deg, var(--accent), var(--violet));
    border-radius: 12px;
    box-shadow: 0 0 28px rgba(242, 166, 90, 0.2);
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    line-height: 1;
    letter-spacing: -0.025em;
}

.brand small {
    margin-top: 4px;
    color: var(--muted);
    font-size: 0.68rem;
    letter-spacing: 0.02em;
}

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

.system-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #a8b5c6;
    font-size: 0.78rem;
}

.status-dot {
    width: 7px;
    height: 7px;
    background: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--success);
}

.main {
    width: 100%;
    margin: 0 auto;
    padding: 24px clamp(18px, 2.4vw, 40px) 48px;
}

.page-header {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 0;
    gap: 22px;
    margin-bottom: 20px;
    padding: 15px clamp(18px, 2.4vw, 30px);
    overflow: hidden;
    background:
        linear-gradient(120deg, rgba(27, 42, 35, 0.97), rgba(13, 21, 18, 0.9)),
        radial-gradient(circle at 80% 50%, rgba(242, 166, 90, 0.16), transparent 45%);
    border: 1px solid rgba(91, 123, 105, 0.52);
    border-radius: 16px;
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.24);
}

.page-header h1 {
    max-width: 920px;
    margin: 0 0 4px;
    font-size: clamp(1.25rem, 2vw, 1.8rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.035em;
}

.page-header h1 span {
    color: transparent;
    background: linear-gradient(90deg, var(--accent), #ffd4a6 45%, #9bc6a5);
    background-clip: text;
    -webkit-background-clip: text;
}

.page-header p {
    margin: 0;
    max-width: 680px;
    color: var(--muted);
    font-size: 0.78rem;
    line-height: 1.35;
}

.hero-copy {
    position: relative;
    z-index: 2;
    flex: 1 1 540px;
}

.eyebrow {
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 0;
}

.hero-tags span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    color: #b8c4d4;
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(117, 140, 173, 0.24);
    border-radius: 999px;
    font-size: 0.7rem;
}

.training-panel-btn {
    flex: 0 0 auto;
    padding: 10px 16px;
    color: #061016;
    background: linear-gradient(135deg, var(--accent), #74eaff);
    border: 0;
    border-radius: 10px;
    box-shadow: 0 8px 30px rgba(33, 212, 253, 0.15);
}

.training-panel-btn:hover,
.training-panel-btn:focus-visible {
    color: #061016;
    filter: brightness(1.08);
}

.section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin: 0 0 20px;
}

.section-heading h2 {
    margin: 3px 0 0;
    font-size: clamp(1.45rem, 3vw, 2rem);
    font-weight: 650;
    letter-spacing: -0.035em;
}

.section-kicker {
    color: var(--accent);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.section-note {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--muted);
    font-size: 0.78rem;
}

.catalog-heading {
    margin-top: 0;
}

.studio-layout {
    display: grid;
    grid-template-columns: minmax(340px, 380px) minmax(0, 1fr);
    gap: clamp(26px, 3vw, 44px);
    align-items: start;
}

.studio-sidebar {
    position: sticky;
    top: 96px;
    min-width: 0;
    max-height: calc(100vh - 112px);
    padding-right: 4px;
    overflow: auto;
    scrollbar-width: thin;
    scrollbar-color: #35445a transparent;
}

.sidebar-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
}

.studio-sidebar .card {
    height: auto;
}

.profile-card {
    margin-bottom: 18px;
}

.profile-recommend-action {
    width: 100%;
    margin-top: 2px;
}

.behavior-card .card-body {
    gap: 8px;
}

.studio-content {
    min-width: 0;
}

#productList {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin: 0;
}

#productList .col-md-3 {
    width: auto;
    margin: 0;
    padding: 0;
}

#productList .product-card {
    margin: 0;
}

.card {
    height: 100%;
    overflow: hidden;
    color: var(--text);
    background: linear-gradient(145deg, rgba(21, 27, 36, 0.96), rgba(12, 16, 22, 0.98));
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.22);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 18px 20px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border);
}

.card-header small {
    display: block;
    margin-bottom: 2px;
    color: var(--muted);
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.card-icon {
    display: grid;
    flex: 0 0 42px;
    width: 42px;
    height: 42px;
    place-items: center;
    color: var(--accent);
    background: rgba(33, 212, 253, 0.08);
    border: 1px solid rgba(33, 212, 253, 0.18);
    border-radius: 12px;
}

.card-icon-accent {
    color: #b69cff;
    background: rgba(139, 92, 246, 0.1);
    border-color: rgba(139, 92, 246, 0.22);
}

.card-header h4,
.card-title {
    margin: 0;
    font-weight: 650;
}

.card-body {
    display: flex;
    flex-direction: column;
    padding: 20px;
}

.card-subtitle,
.text-muted {
    color: var(--muted) !important;
}

.form-label {
    color: #c2ccda;
    font-size: 0.85rem;
}

.subsection-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    color: #c9d5e4;
    font-size: 0.92rem;
}

.form-control,
.form-select {
    color: var(--text);
    background-color: #0b0f15;
    border-color: var(--border);
}

.form-control:focus,
.form-select:focus {
    color: var(--text);
    background-color: #0b0f15;
    border-color: var(--accent-strong);
    box-shadow: 0 0 0 0.2rem rgba(14, 165, 233, 0.15);
}

.form-control:disabled {
    color: var(--muted);
    background: #111720;
}

.btn-primary {
    color: #041017;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    border: 0;
}

.btn-primary:hover {
    color: #041017;
    filter: brightness(1.08);
}

.btn-success {
    color: #06140f;
    background-color: var(--success);
    border-color: var(--success);
}

.btn:disabled {
    opacity: 0.45;
}

.product-card {
    position: relative;
    margin-bottom: 20px;
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.pet-symbol {
    display: grid;
    width: 54px;
    height: 54px;
    margin-bottom: 14px;
    place-items: center;
    font-size: 1.8rem;
    background: linear-gradient(145deg, rgba(242, 166, 90, 0.2), rgba(130, 168, 140, 0.18));
    border: 1px solid rgba(242, 166, 90, 0.3);
    border-radius: 18px;
}

.pet-context-note {
    display: block;
    min-height: 2.4em;
    margin: 0 0 14px;
    color: var(--muted);
    font-size: 0.68rem;
    line-height: 1.35;
}

.product-card::before {
    position: absolute;
    z-index: 1;
    top: 0;
    right: 24px;
    left: 24px;
    height: 1px;
    content: "";
    background: linear-gradient(90deg, transparent, rgba(33, 212, 253, 0.75), transparent);
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: rgba(33, 212, 253, 0.5);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.32);
}

.product-card .card-title {
    font-size: 1.08rem;
}

.product-card .card-text {
    margin: 18px 0 24px;
    color: #c8d3e0;
}

.buy-now-btn {
    margin-top: auto;
    padding: 10px 14px;
    border-radius: 9px;
}

.past-purchase {
    padding: 10px 12px;
    margin: 5px 0;
    color: #cbd5e1;
    background-color: #111923;
    border-left: 3px solid var(--accent-strong);
    border-radius: 7px;
    font-size: 0.9em;
    cursor: pointer;
    transition: all 180ms ease;
}

.past-purchase:hover {
    color: #fff;
    background-color: rgba(255, 107, 122, 0.12);
    border-left-color: var(--danger);
}

.past-purchase-highlight {
    background-color: rgba(61, 220, 151, 0.14);
    border-left-color: var(--success);
}

.user-purchase-summary {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.user-purchase-summary:last-child {
    border-bottom: none;
}

.badge.bg-light {
    color: #cbd5e1 !important;
    background: #1a2330 !important;
    border: 1px solid #2c394b;
}

.model-controls {
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.train-model-btn {
    margin-right: 6px;
}

.all-users-purchases h5 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0 4px;
    color: #cbd5e1;
    font-size: 0.95rem;
}

.training-status {
    display: none;
    margin-top: 10px;
}

.training-progress {
    height: 5px;
}

.user-purchases-data {
    transition: max-height 0.3s ease;
}

.purchases-modal-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    width: 100%;
    padding: 11px 13px;
    color: #c9d5e5;
    background: #0d141d;
    border: 1px solid #2a3749;
    border-radius: 10px;
    font-size: 0.82rem;
    text-align: left;
}

.purchases-modal-trigger:hover,
.purchases-modal-trigger:focus-visible {
    color: #ffffff;
    background: #121d29;
    border-color: var(--accent-strong);
}

.purchases-modal {
    width: min(680px, calc(100vw - 32px));
    max-height: min(720px, calc(100vh - 48px));
    padding: 0;
    overflow: hidden;
    color: var(--text);
    background: linear-gradient(145deg, #121923, #090d13);
    border: 1px solid #304057;
    border-radius: 18px;
    box-shadow: 0 28px 90px rgba(0, 0, 0, 0.72);
}

.purchases-modal::backdrop {
    background: rgba(2, 5, 9, 0.76);
    backdrop-filter: blur(7px);
}

.purchases-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 22px;
    border-bottom: 1px solid #263449;
}

.purchases-modal-header small {
    color: var(--accent);
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.purchases-modal-header h3 {
    margin: 3px 0 0;
    font-size: 1.2rem;
}

.purchases-modal-close {
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    padding: 0;
    color: #aebccc;
    background: transparent;
    border: 0;
    border-radius: 8px;
    font-size: 1.65rem;
    line-height: 1;
}

.purchases-modal-close:hover,
.purchases-modal-close:focus-visible {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
}

.purchases-modal-content {
    max-height: calc(100vh - 180px);
    padding: 8px 22px 22px;
    overflow: auto;
}

/* Tema escuro para o painel criado dinamicamente pelo TensorFlow.js Visor. */
#tfjs-visor-container,
#tfjs-visor-container>div,
#tfjs-visor-container .visor,
#tfjs-visor-container .visor-container,
#tfjs-visor-container .visor-surface {
    color: var(--text) !important;
    background: #080b10 !important;
    border-color: var(--border) !important;
}

#tfjs-visor-container {
    position: relative !important;
    border-left: 1px solid #2a3647 !important;
    box-shadow: -20px 0 50px rgba(0, 0, 0, 0.48) !important;
}

#tfjs-visor-container button {
    color: #dff8ff !important;
    background: #121a24 !important;
    border: 1px solid #324157 !important;
    border-radius: 6px !important;
}

#tfjs-visor-container button:hover,
#tfjs-visor-container button:focus-visible {
    color: #031017 !important;
    background: var(--accent) !important;
    border-color: var(--accent) !important;
}

#tfjs-visor-container .visor-close-button {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 7px !important;
    width: auto !important;
    height: 34px !important;
    margin-left: auto !important;
    padding: 0 13px !important;
    color: #c8d4e4 !important;
    background: rgba(255, 255, 255, 0.035) !important;
    border: 1px solid #34435a !important;
    border-radius: 8px !important;
    font-size: 0.76rem !important;
    font-weight: 650 !important;
    line-height: 1 !important;
}

#tfjs-visor-container .visor-close-button:hover,
#tfjs-visor-container .visor-close-button:focus-visible {
    color: #071017 !important;
    background: var(--accent) !important;
    border-color: var(--accent) !important;
}

#tfjs-visor-container .model-training-control {
    display: flex;
    align-items: center;
    padding: 14px !important;
    background: #0b1119 !important;
}

#tfjs-visor-container #trainModelBtn {
    width: 100%;
    margin: 0;
    padding: 11px 14px;
    color: #041017 !important;
    background: linear-gradient(135deg, var(--accent), #7cecff) !important;
    border: 0 !important;
    border-radius: 9px !important;
    font-weight: 650;
}

#tfjs-visor-container #trainModelBtn:hover,
#tfjs-visor-container #trainModelBtn:focus-visible {
    filter: brightness(1.08);
}

#tfjs-visor-container .visor-controls {
    display: none !important;
}

#tfjs-visor-container [class*="tab"] {
    color: #b9c7d8 !important;
    background-color: #0d1219 !important;
    border-color: #273449 !important;
}

#tfjs-visor-container [class*="tab"]:hover,
#tfjs-visor-container [class*="tab"][class*="active"],
#tfjs-visor-container [class*="tab"][class*="selected"] {
    color: var(--accent) !important;
    border-color: var(--accent-strong) !important;
}

#tfjs-visor-container .visor-tabs {
    display: none !important;
}

#tfjs-visor-container .training-panel-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 8px 10px 14px;
    padding: 14px 16px;
    background: linear-gradient(145deg, #151b24, #0d1219) !important;
    border: 1px solid #2a3749 !important;
    border-radius: 11px;
}

#tfjs-visor-container .model-training-surface {
    box-sizing: border-box !important;
    width: calc(100% - 20px) !important;
    margin-right: 10px !important;
    margin-left: 10px !important;
}

#tfjs-visor-container .visor-surfaces>div {
    box-sizing: border-box !important;
    width: calc(100% - 20px) !important;
    margin-right: 10px !important;
    margin-left: 10px !important;
}

#tfjs-visor-container .training-tab-icon {
    display: inline-flex;
    flex: 0 0 42px;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    color: #a78bfa !important;
    background: rgba(124, 92, 255, 0.13);
    border: 1px solid rgba(139, 92, 246, 0.34);
    border-radius: 11px;
}

#tfjs-visor-container .training-tab-copy {
    display: flex;
    min-width: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

#tfjs-visor-container .training-tab-copy small {
    color: #91a0b4 !important;
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

#tfjs-visor-container .training-tab-copy strong {
    color: #edf3ff !important;
    font-size: 1.08rem;
    line-height: 1.15;
}

#tfjs-visor-container [class*="surface"] {
    color: var(--text) !important;
    background: linear-gradient(145deg, #111821, #0b0f15) !important;
    border: 1px solid #263346 !important;
    border-radius: 10px !important;
}

#tfjs-visor-container .tf-label {
    color: #e8f8ff !important;
    background: linear-gradient(90deg, #101a25, #0b1119) !important;
    border-bottom: 1px solid #263b50 !important;
}

#tfjs-visor-container h1,
#tfjs-visor-container h2,
#tfjs-visor-container h3,
#tfjs-visor-container h4,
#tfjs-visor-container h5,
#tfjs-visor-container h6,
#tfjs-visor-container label,
#tfjs-visor-container p,
#tfjs-visor-container span {
    color: inherit !important;
}

/*
 * Os gráficos do tfjs-vis são desenhados em canvas com eixos escuros.
 * A inversão clareia eixos e textos; hue-rotate preserva a diferenciação
 * cromática das séries sobre o novo fundo escuro.
 */
#tfjs-visor-container canvas {
    background: #f5f7fa !important;
    border-radius: 8px;
    filter: invert(0.92) hue-rotate(180deg) saturate(1.35);
}

#tfjs-visor-container table {
    color: var(--text) !important;
    background: #0d131b !important;
}

#tfjs-visor-container th,
#tfjs-visor-container td {
    color: inherit !important;
    background: transparent !important;
    border-color: #2a3647 !important;
}

.powered-footer {
    position: fixed;
    z-index: 120;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 38px;
    padding: 7px 16px;
    color: #7f8ca0;
    background: rgba(7, 9, 13, 0.9);
    border-top: 1px solid rgba(91, 112, 143, 0.2);
    backdrop-filter: blur(16px);
    font-size: 0.72rem;
}

.powered-footer strong {
    color: #b9c5d5;
}

.powered-footer a {
    color: var(--accent);
    text-decoration: none;
}

.powered-footer a:hover {
    text-decoration: underline;
}

@media (min-width: 1101px) {
    body {
        height: 100vh;
        height: 100dvh;
        min-height: 0;
        padding-bottom: 38px;
        overflow: hidden;
    }

    .main {
        display: flex;
        height: calc(100vh - 110px);
        height: calc(100dvh - 110px);
        min-height: 0;
        flex-direction: column;
        padding-bottom: 18px;
        overflow: hidden;
    }

    .page-header {
        flex: 0 0 auto;
    }

    .studio-layout {
        min-height: 0;
        flex: 1 1 auto;
    }

    .studio-sidebar {
        position: static;
        height: 100%;
        max-height: none;
        overflow: hidden;
    }

    .studio-content {
        height: 100%;
        min-height: 0;
        padding-right: 8px;
        overflow-x: hidden;
        overflow-y: auto;
        overscroll-behavior: contain;
        scrollbar-width: thin;
        scrollbar-color: #35445a transparent;
    }
}

@media (max-width: 767px) {
    .app-bar-inner {
        width: 100%;
        min-height: 64px;
        padding: 0 12px;
    }

    .system-status {
        display: none;
    }

    .training-panel-btn {
        width: auto;
        padding: 9px 11px;
        font-size: 0;
    }

    .training-panel-btn i {
        font-size: 1rem;
    }

    .main {
        width: 100%;
        padding: 14px 12px 36px;
    }

    .page-header {
        align-items: flex-start;
        flex-direction: column;
        min-height: auto;
        margin: 0 0 20px;
        padding: 14px;
    }

    .page-header h1 {
        font-size: 1.35rem;
    }

    .hero-copy {
        flex: 0 1 auto;
    }

    .hero-tags {
        justify-content: flex-start;
    }

    .section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }

    .powered-footer {
        justify-content: flex-start;
        gap: 3px;
        flex-direction: column;
        font-size: 0.66rem;
    }
}

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

    .studio-sidebar {
        position: static;
        max-height: none;
        overflow: visible;
    }

    .studio-content {
        margin-top: 12px;
    }
}