/* ==========================================================================
   GB Trial Class Booking — Frontend Styles
   Primary: #E2211C | Font: Inter (system-ui fallback)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --gbtb-primary:       #E2211C;
    --gbtb-primary-dark:  #c01a16;
    --gbtb-primary-light: rgba(226, 33, 28, 0.08);
    --gbtb-text:          #111827;
    --gbtb-text-muted:    #6B7280;
    --gbtb-border:        #E5E7EB;
    --gbtb-bg:            #FFFFFF;
    --gbtb-bg-soft:       #F9FAFB;
    --gbtb-radius:        12px;
    --gbtb-radius-sm:     8px;
    --gbtb-shadow:        0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
    --gbtb-shadow-lg:     0 4px 24px rgba(0,0,0,.12);
    --gbtb-transition:    all .2s ease;
    --gbtb-font:          'Inter', system-ui, -apple-system, sans-serif;
}

/* --------------------------------------------------------------------------
   Container
   -------------------------------------------------------------------------- */


.gbtb-app {
    font-family: var(--gbtb-font);
    color: var(--gbtb-text);
    background: var(--gbtb-bg);
    overflow: hidden;
    position: relative;
}


/* --------------------------------------------------------------------------
   Screens
   -------------------------------------------------------------------------- */

.gbtb-screen {
    display: none;
    opacity: 0;
    transition: opacity .2s ease;
}
/* Tela 1 — bloco simples */
#gbtb-screen-1.active {
    display: block;
    opacity: 1;
}
/* Telas 2 e 3 — layout flex com sidebar */
#gbtb-screen-2.active,
#gbtb-screen-3.active {
    display: flex;
    opacity: 1;
}
/* Tela de confirmação */
#gbtb-screen-confirm.active {
    display: flex;
    opacity: 1;
}

/* --------------------------------------------------------------------------
   TELA 1 — Seleção de Aula
   -------------------------------------------------------------------------- */

.gbtb-header {
    padding: 28px 32px 24px;
    border-bottom: 1px solid var(--gbtb-border);
}

.gbtb-site-title {
    margin: 0 0 2px;
    font-size: 22px;
    font-weight: 800;
    color: var(--gbtb-text);
    letter-spacing: -.4px;
}

.gbtb-site-subtitle {
    margin: 0 0 20px;
    font-size: 14px;
    color: var(--gbtb-text-muted);
}

/* Grid de Cards */
.gbtb-classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
    padding: 24px 32px 32px;
}

.gbtb-class-card {
    border: 1.5px solid var(--gbtb-border);
    border-radius: var(--gbtb-radius);
    background: var(--gbtb-bg);
    cursor: pointer;
    transition: var(--gbtb-transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-bottom: 16px;
}
.gbtb-class-card:hover {
    border-color: var(--gbtb-primary);
    box-shadow: 0 4px 20px rgba(226, 33, 28, 0.15);
    transform: translateY(-2px);
}

.gbtb-card-title-bar {
    width: 100%;
    padding: 16px 20px 14px;
    text-align: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--gbtb-text);
    letter-spacing: .2px;
    border-bottom: 1px solid var(--gbtb-border);
}

.gbtb-card-image-wrap {
    width: 100%;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100px;
    background: var(--gbtb-bg-soft);
}
.gbtb-card-image-wrap img {
    max-width: 120px;
    max-height: 80px;
    object-fit: contain;
    border-radius: 6px;
}
.gbtb-card-image-placeholder {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #E2211C, #c01a16);
    border-radius: var(--gbtb-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -1px;
}

.gbtb-card-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--gbtb-text-muted);
    padding: 0 20px;
    margin-top: 4px;
}
.gbtb-card-meta svg { flex-shrink: 0; }

/* Loading */
.gbtb-loading {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--gbtb-text-muted);
    gap: 16px;
}
.gbtb-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--gbtb-border);
    border-top-color: var(--gbtb-primary);
    border-radius: 50%;
    animation: gbtb-spin .7s linear infinite;
}
.gbtb-spinner-sm {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: gbtb-spin .7s linear infinite;
    vertical-align: middle;
}
@keyframes gbtb-spin { to { transform: rotate(360deg); } }

.gbtb-no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--gbtb-text-muted);
}

/* --------------------------------------------------------------------------
   TELAS 2 e 3 — Layout com sidebar
   -------------------------------------------------------------------------- */

.gbtb-booking-layout {
    display: flex;
    min-height: 480px;
}

/* Sidebar */
.gbtb-sidebar {
    width: 200px;
    flex-shrink: 0;
    border-right: 1px solid var(--gbtb-border);
    padding: 24px 20px 32px;
    display: flex;
    flex-direction: column;
}

.gbtb-back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1.5px solid var(--gbtb-border);
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
    color: var(--gbtb-text-muted);
    transition: var(--gbtb-transition);
    margin-bottom: 24px;
    flex-shrink: 0;
}
.gbtb-back-btn:hover {
    border-color: var(--gbtb-primary);
    color: var(--gbtb-primary);
    background: var(--gbtb-primary-light);
}

.gbtb-sidebar-subtitle {
    margin: 0 0 4px;
    font-size: 12px;
    color: var(--gbtb-text-muted);
    font-weight: 500;
}
.gbtb-sidebar-class-name {
    margin: 0 0 20px;
    font-size: 20px;
    font-weight: 800;
    color: var(--gbtb-text);
    line-height: 1.25;
    letter-spacing: -.3px;
}
.gbtb-sidebar-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.gbtb-info-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    color: var(--gbtb-text-muted);
    line-height: 1.4;
}
.gbtb-info-row svg { flex-shrink: 0; margin-top: 1px; }

/* --------------------------------------------------------------------------
   Calendário (Tela 2)
   -------------------------------------------------------------------------- */

.gbtb-calendar-wrap {
    flex: 1;
    padding: 28px 32px;
    border-right: 1px solid var(--gbtb-border);
}

.gbtb-calendar-title {
    margin: 0 0 24px;
    font-size: 18px;
    font-weight: 700;
    color: var(--gbtb-text);
}

.gbtb-cal-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.gbtb-cal-month-label {
    font-size: 16px;
    font-weight: 700;
    color: var(--gbtb-text);
}
.gbtb-cal-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1.5px solid var(--gbtb-border);
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
    color: var(--gbtb-text-muted);
    transition: var(--gbtb-transition);
}
.gbtb-cal-btn:hover {
    border-color: var(--gbtb-primary);
    color: var(--gbtb-primary);
}
.gbtb-cal-btn-next {
    border-color: var(--gbtb-primary);
    color: var(--gbtb-primary);
}

.gbtb-cal-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    margin-bottom: 8px;
}
.gbtb-cal-header span {
    font-size: 12px;
    font-weight: 600;
    color: var(--gbtb-text-muted);
    padding: 6px 0;
    text-transform: uppercase;
    letter-spacing: .4px;
}

.gbtb-cal-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.gbtb-cal-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 14px;
    font-weight: 500;
    cursor: default;
    color: var(--gbtb-text-muted);
    transition: var(--gbtb-transition);
    position: relative;
}

.gbtb-cal-day.available {
    color: var(--gbtb-primary);
    cursor: pointer;
    font-weight: 600;
}
.gbtb-cal-day.available:hover {
    background: var(--gbtb-primary-light);
}

/* Hoje: apenas cor vermelha no número, sem círculo */
.gbtb-cal-day.today {
    color: var(--gbtb-primary) !important;
    font-weight: 700;
    background: transparent;
}
.gbtb-cal-day.today:hover {
    background: var(--gbtb-primary-light);
}

/* Dia selecionado: fundo sólido vermelho */
.gbtb-cal-day.selected {
    background: var(--gbtb-primary) !important;
    color: #fff !important;
    font-weight: 700;
    border: 2px solid var(--gbtb-primary);
}

.gbtb-cal-day.available-highlight:not(.today):not(.selected) {
    color: var(--gbtb-primary);
    font-weight: 600;
}
.gbtb-cal-day.empty { pointer-events: none; }
.gbtb-cal-day.past { opacity: .3; pointer-events: none; }

/* --------------------------------------------------------------------------
   Horários (Tela 2 — coluna direita)
   -------------------------------------------------------------------------- */

.gbtb-times-col {
    width: 200px;
    flex-shrink: 0;
    padding: 28px 20px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
}

.gbtb-times-hint {
    font-size: 13px;
    color: var(--gbtb-text-muted);
    text-align: center;
    padding: 20px 0;
    white-space: nowrap;
}

.gbtb-time-btn {
    padding: 12px 8px;
    border: 1.5px solid var(--gbtb-border);
    border-radius: var(--gbtb-radius-sm);
    background: var(--gbtb-bg);
    font-size: 15px;
    font-weight: 600;
    font-family: var(--gbtb-font);
    color: var(--gbtb-text);
    cursor: pointer;
    text-align: center;
    transition: var(--gbtb-transition);
}
.gbtb-time-btn:hover {
    border-color: var(--gbtb-primary);
    color: var(--gbtb-primary);
    background: var(--gbtb-primary-light);
}
.gbtb-time-btn.selected {
    background: #555;
    border-color: #555;
    color: #fff;
}

.gbtb-btn-select {
    margin-top: 8px;
    padding: 13px 8px;
    background: var(--gbtb-primary);
    border: none;
    border-radius: var(--gbtb-radius-sm);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    font-family: var(--gbtb-font);
    cursor: pointer;
    transition: var(--gbtb-transition);
}
.gbtb-btn-select:hover { background: var(--gbtb-primary-dark); }

/* --------------------------------------------------------------------------
   Formulário (Tela 3)
   -------------------------------------------------------------------------- */

.gbtb-form-main {
    flex: 1;
    padding: 28px 36px 36px;
    overflow-y: auto;
}

.gbtb-form-title {
    margin: 0 0 28px;
    font-size: 18px;
    font-weight: 700;
    color: var(--gbtb-text);
}

.gbtb-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.gbtb-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.gbtb-form-group.gbtb-full-width {
    grid-column: 1 / -1;
}

.gbtb-form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--gbtb-text);
}
.gbtb-form-group label .required { color: var(--gbtb-primary); }

.gbtb-form-group input[type="text"],
.gbtb-form-group input[type="email"],
.gbtb-form-group input[type="tel"],
.gbtb-form-group textarea {
    padding: 11px 14px;
    border: 1.5px solid var(--gbtb-border);
    border-radius: var(--gbtb-radius-sm);
    font-size: 14px;
    font-family: var(--gbtb-font);
    color: var(--gbtb-text);
    background: var(--gbtb-bg);
    transition: var(--gbtb-transition);
    box-sizing: border-box;
    width: 100%;
}
.gbtb-form-group input:focus,
.gbtb-form-group textarea:focus {
    outline: none;
    border-color: var(--gbtb-primary);
    box-shadow: 0 0 0 3px var(--gbtb-primary-light);
}
.gbtb-form-group input.error,
.gbtb-form-group textarea.error {
    border-color: var(--gbtb-primary);
}
.gbtb-form-group textarea { resize: vertical; min-height: 80px; }

/* Input com ícone (email) */
.gbtb-input-icon-wrap {
    position: relative;
    display: block;
    width: 100%;
}
.gbtb-input-icon-wrap svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    display: block;
    color: var(--gbtb-text-muted);
    pointer-events: none;
    z-index: 1;
}
.gbtb-input-icon-wrap input {
    padding-left: 36px !important;
    width: 100%;
    box-sizing: border-box;
}

/* Consentimento */
.gbtb-consent-wrap { margin-top: 4px; }
.gbtb-consent-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    font-size: 13px !important;
    font-weight: 400 !important;
    color: var(--gbtb-text-muted) !important;
    line-height: 1.5;
}
.gbtb-consent-label input[type="checkbox"] {
    margin-top: 2px;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    accent-color: var(--gbtb-primary);
    cursor: pointer;
}

/* Erro */
.gbtb-form-error {
    padding: 12px 16px;
    background: rgba(226, 33, 28, 0.08);
    border: 1px solid rgba(226, 33, 28, 0.3);
    border-radius: var(--gbtb-radius-sm);
    color: var(--gbtb-primary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
}

/* Botão de enviar */
.gbtb-form-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 24px;
}
.gbtb-btn-primary {
    padding: 14px 36px;
    background: var(--gbtb-primary);
    color: #fff;
    border: none;
    border-radius: var(--gbtb-radius-sm);
    font-size: 15px;
    font-weight: 700;
    font-family: var(--gbtb-font);
    cursor: pointer;
    transition: var(--gbtb-transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.gbtb-btn-primary:hover:not(:disabled) { background: var(--gbtb-primary-dark); }
.gbtb-btn-primary:disabled { opacity: .65; cursor: not-allowed; }

/* --------------------------------------------------------------------------
   Tela de Confirmação
   -------------------------------------------------------------------------- */

.gbtb-screen-confirm {
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}


.gbtb-confirm-card {
    max-width: 480px;
    width: 100%;
    text-align: center;
}
.gbtb-confirm-icon {
    width: 80px;
    height: 80px;
    background: rgba(226, 33, 28, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: var(--gbtb-primary);
    animation: gbtb-pop .4s ease;
}
@keyframes gbtb-pop {
    0% { transform: scale(0); opacity: 0; }
    70% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}
.gbtb-confirm-card h2 {
    margin: 0 0 12px;
    font-size: 26px;
    font-weight: 800;
    color: var(--gbtb-text);
}
.gbtb-confirm-card p {
    margin: 0 0 24px;
    color: var(--gbtb-text-muted);
    font-size: 15px;
    line-height: 1.6;
}
.gbtb-confirm-details {
    background: var(--gbtb-bg-soft);
    border: 1px solid var(--gbtb-border);
    border-radius: var(--gbtb-radius);
    padding: 20px;
    text-align: left;
    font-size: 14px;
    color: var(--gbtb-text-muted);
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.gbtb-confirm-details strong { color: var(--gbtb-text); }

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */

.hidden { display: none !important; }

/* --------------------------------------------------------------------------
   Responsividade
   -------------------------------------------------------------------------- */

@media (max-width: 800px) {
    .gbtb-booking-layout {
        flex-direction: column;
    }
    .gbtb-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--gbtb-border);
        padding: 20px 20px 16px;
    }
    .gbtb-sidebar-class-name { font-size: 17px; }
    .gbtb-sidebar-info { flex-direction: row; flex-wrap: wrap; gap: 8px 20px; }
    .gbtb-back-btn { margin-bottom: 16px; }
    .gbtb-calendar-wrap {
        padding: 20px;
        border-right: none;
        border-bottom: 1px solid var(--gbtb-border);
    }
    .gbtb-times-col {
        width: 100%;
        padding: 16px 20px;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
        align-items: flex-start;
    }
    .gbtb-times-hint { width: 100%; }
    .gbtb-time-btn { min-width: 80px; }
    .gbtb-btn-select { width: 100%; margin-top: 0; }
    .gbtb-form-main { padding: 20px; }
    .gbtb-form-row { grid-template-columns: 1fr; }
    .gbtb-classes-grid { padding: 16px; gap: 12px; }
    .gbtb-header { padding: 20px 16px 16px; }
}

@media (max-width: 480px) {
    .gbtb-classes-grid { grid-template-columns: 1fr; }
    .gbtb-cal-day { font-size: 12px; }
}