/* Nunito (self-hosted variable font) */
@font-face {
    font-family: 'Nunito';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url('../vendor/fonts/nunito-cyrillic-ext.woff2') format('woff2');
    unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
@font-face {
    font-family: 'Nunito';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url('../vendor/fonts/nunito-cyrillic.woff2') format('woff2');
    unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
    font-family: 'Nunito';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url('../vendor/fonts/nunito-vietnamese.woff2') format('woff2');
    unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
@font-face {
    font-family: 'Nunito';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url('../vendor/fonts/nunito-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
    font-family: 'Nunito';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url('../vendor/fonts/nunito-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ============================================
   TM + micro:bit - Responsive Mobile-First
   Tema Ceibal
   ============================================ */

:root {
    --primary: #009f95;
    --primary-hover: #008680;
    --secondary: #0091DA;
    --accent: #FF6B35;
    --success: #009f95;
    --error: #E63946;
    --bg: #F5F5F5;
    --surface: #ffffff;
    --text: #333333;
    --text-light: #666666;
    --border: #DDDDDD;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px; /* Base: 1rem = 16px */
}

body {
    font-family: 'Nunito', 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overscroll-behavior-y: contain;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

.screen {
    display: block;
}

.screen.hidden {
    display: none;
}

/* ============================================
   HOME SCREEN
   ============================================ */

.header {
    text-align: center;
    padding: 2rem 0 1.5rem;
}

.header h1 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: clamp(0.95rem, 3vw, 1.1rem);
    color: var(--text-light);
}

/* Buttons */
.btn-primary,
.btn-secondary {
    width: 100%;
    padding: 1rem;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    touch-action: manipulation;
    min-height: 48px;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:active {
    background: var(--primary-hover);
    transform: scale(0.98);
}

.btn-large {
    max-width: 500px;
    margin: 0 auto 2rem;
    display: block;
    padding: 1.25rem;
    font-size: 1.2rem;
}

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border: 2px solid var(--border);
}

.btn-secondary:active {
    border-color: var(--primary);
    color: var(--primary);
}

/* Models */
.models-library h2 {
    font-size: clamp(1.25rem, 4vw, 1.5rem);
    margin-bottom: 1rem;
    font-weight: 700;
}

.models-grid {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 0.5rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.models-grid::-webkit-scrollbar {
    height: 4px;
}

.models-grid::-webkit-scrollbar-track {
    background: transparent;
}

.models-grid::-webkit-scrollbar-thumb {
    background-color: var(--border);
    border-radius: 4px;
}

/* New Project card */
.model-card-new {
    flex: 0 0 auto;
    width: 200px;
    scroll-snap-align: start;
    background: var(--primary);
    border: none;
    border-radius: 12px;
    padding: 1.25rem;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-family: inherit;
    gap: 0.5rem;
    min-height: 148px;
    transition: all 0.2s;
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.model-card-new:hover {
    filter: brightness(0.93);
}

.model-card-new:active {
    background: var(--primary-hover);
    transform: scale(0.97);
}

.card-new-icon {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1;
}

.card-new-label {
    font-size: 0.9rem;
    font-weight: 700;
    text-align: center;
    line-height: 1.2;
}

.model-card {
    flex: 0 0 auto;
    width: 200px;
    scroll-snap-align: start;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    position: relative;
}

.model-card > .model-card-menu {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
}

.model-card-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.model-card-url {
    display: none; /* Ocultar URL */
}

.model-card-date {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

.model-card-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
}

.btn-card {
    flex: 1;
    padding: 0.6rem 0.4rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    min-height: 36px;
    touch-action: manipulation;
}

.btn-use {
    background: var(--primary);
    color: white;
}

.btn-use:hover {
    filter: brightness(0.9);
}

.btn-use:active {
    background: var(--primary-hover);
}

.btn-delete {
    background: var(--surface);
    color: var(--text-light);
    border: 2px solid var(--border);
}

.btn-delete:active {
    background: #f0f0f0;
    border-color: var(--text-light);
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-state p:first-child {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.empty-hint {
    font-size: 0.95rem;
    color: var(--text-light);
}

.btn-back {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 400;
    padding: 0.5rem;
    min-width: 44px;
    min-height: 44px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-back:hover {
    background: rgba(0, 0, 0, 0.06);
    border-radius: 6px;
}

.btn-back svg {
    width: 24px;
    height: 24px;
    stroke: var(--primary);
}

.badge {
    padding: 0.4rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    white-space: nowrap;
}

.badge::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.badge-connected {
    background: #d1fae5;
    color: #065f46;
}

.badge-connected::before {
    background: var(--success);
    animation: pulse 2s infinite;
}

.badge-connecting {
    background: #fef3c7;
    color: #92400e;
}

.badge-connecting::before {
    background: #f59e0b;
    animation: pulse 1s infinite;
}

.badge-disconnected {
    background: #fee2e2;
    color: #991b1b;
}

.badge-disconnected::before {
    background: var(--error);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* === Video overlay action buttons (flip + expand) === */
.btn-video-action {
    position: absolute;
    bottom: 0.75rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.45);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: background 0.2s;
}

.btn-video-action:hover {
    background: rgba(0, 0, 0, 0.6);
}

.btn-video-action:active {
    background: rgba(0, 0, 0, 0.7);
    transform: scale(0.93);
}

.btn-video-flip {
    right: 3.5rem;
}

.btn-video-expand {
    right: 0.75rem;
}

/* Expand/minimize icon toggling */
.btn-video-expand .icon-minimize {
    display: none;
}
body.prediction-expanded .btn-video-expand .icon-expand {
    display: none;
}
body.prediction-expanded .btn-video-expand .icon-minimize {
    display: flex;
}

/* prediction-video-area: relative container for overlay buttons */
.prediction-video-area {
    position: relative;
    flex-shrink: 0;
}

/* === Expanded prediction mode === */
body.prediction-expanded .prediction-main-column {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: var(--bg);
    display: flex !important;
    flex-direction: column;
    flex-wrap: nowrap;
    overflow: hidden;
}

body.prediction-expanded .prediction-main-content {
    padding: 0;
    overflow: hidden;
    gap: 0;
}

body.prediction-expanded .prediction-video-area {
    flex: 1;
    width: 100%;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--bg);
    padding: 0.75rem;
}

body.prediction-expanded .prediction-webcam-wrapper {
    border-radius: 12px;
    overflow: hidden;
    flex-shrink: 0;
}

body.prediction-expanded .prediction-webcam-wrapper canvas {
    width: 100% !important;
    height: 100% !important;
}

body.prediction-expanded #prediction-predictions {
    padding: 0.5rem 0;
    background: var(--bg);
    max-height: 35vh;
    overflow-y: auto;
    flex-shrink: 0;
    width: 100%;
    align-self: center;
    max-width: var(--expanded-video-size, 100%);
}

body.prediction-expanded .prediction-actions {
    align-self: center;
    width: 100%;
    max-width: var(--expanded-video-size, 100%);
    padding: 0 0 0.5rem;
}

.prediction-item {
    padding: 10px 12px;
    background: #fff;
    border-radius: 8px;
    border: 1px solid #d4ede9;
    border-left: 3px solid transparent;
}

.prediction-item.top {
    border-left-color: var(--primary);
    background: #fff;
}

.prediction-item-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.class-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: #085041;
}

.confidence {
    font-weight: 700;
    font-size: 0.95rem;
}

.confidence-bar {
    height: 5px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    background: var(--primary);
    transition: width 0.3s;
}

.model-card-classes {
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ============================================
   MODAL
   ============================================ */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--surface);
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    border-bottom: 2px solid var(--border);
}

.modal-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--text-light);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 8px;
}

.modal-close:active {
    background: var(--bg);
}

.modal-body {
    padding: 1.25rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.input-text {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
}

.input-text:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 168, 89, 0.1);
}

.input-hint {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-light);
}

.modal-footer {
    display: flex;
    gap: 0.75rem;
    padding: 1.25rem;
    border-top: 2px solid var(--border);
}

.modal-footer .btn-primary,
.modal-footer .btn-secondary {
    flex: 1;
}

.modal-footer .btn-primary:hover {
    filter: brightness(0.9);
}

.modal-footer .btn-secondary:hover {
    filter: brightness(0.95);
    border-color: var(--primary);
}

/* ============================================
   TOAST
   ============================================ */

.toast {
    position: fixed;
    /* Alineado con el título "Predicciones" */
    /* Header (~60px) + padding-top del content (1rem = 16px) + padding del panel (1rem = 16px) */
    top: calc(60px + 1rem + 1rem); 
    right: 1rem;
    /* Eliminamos el left: 1rem para que no ocupe todo el ancho y pueda deslizar */
    width: auto; 
    max-width: calc(100% - 2rem);
    
    background: var(--surface);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary);
    
    /* Estado inicial: fuera de la pantalla a la derecha */
    transform: translateX(120%); 
    opacity: 0;
    transition: all 0.3s ease-out;
    z-index: 2000;
    font-weight: 600;
}

/* Clase para activar el toast (vuelve a su posición original) */
.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.success {
    border-left-color: var(--success);
}

.toast.error {
    border-left-color: var(--error);
}

/* ============================================
   RESPONSIVE - Tablet y Desktop
   ============================================ */

@media (min-width: 640px) {
    .container {
        padding: 1.5rem;
    }

    .toast {
        /* En desktop, el header es más grande y hay más padding */
        top: calc(60px + 1.5rem + 1rem);
        right: 1.5rem;
        max-width: 400px;
    }
}


@media (min-width: 1024px) {
    .container {
        padding: 2rem;
    }
}

/* ============================================
   UTILITIES
   ============================================ */

button, a, input {
    touch-action: manipulation;
}

/* ============================================
   TRAINING SCREEN
   ============================================ */

.training-layout {
    min-height: 100vh;
    max-height: 100vh;
    display: flex;
    flex-direction: column;
}

.training-header {
    height: 44px;
    padding: 0 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: none;
    background: #009f95;
    flex-shrink: 0;
}

.training-header .btn-back {
    padding: 4px;
    min-width: 28px;
    min-height: 28px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 6px;
    flex-shrink: 0;
    color: #fff;
}

.training-header h2 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.project-type-badge {
    font-size: 0.7rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 2px 10px;
    border-radius: 10px;
    flex-shrink: 0;
    letter-spacing: 0.3px;
}

.btn-sm {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 700;
    min-height: 36px;
    width: auto;
}

.btn-sm:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.training-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    overflow-y: auto;
    min-height: 0;
}

.training-webcam-container {
    background: var(--surface);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-shrink: 0;
}

#training-webcam-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#training-webcam-wrapper canvas {
    max-width: 100%;
    max-height: 100%;
    width: auto !important;
    height: auto !important;
}

.training-classes-panel {
    background: var(--surface);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 1rem;
    flex: 1;
}

.training-classes-panel h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.training-class-card {
    background: var(--surface);
    border: 1px solid #d4ede9;
    border-radius: 12px;
    overflow: hidden;
    flex-shrink: 0;
}

.training-class-card.class-card-active {
    border-color: var(--primary);
    border-width: 2px;
}

.class-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid #d4ede9;
    gap: 8px;
}

.class-card-header-left {
    display: flex;
    align-items: center;
    gap: 4px;
    min-width: 0;
    flex: 0 1 auto;
}

.class-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.class-card-header .class-name-input {
    font-size: 0.95rem;
    font-weight: 700;
    border: none;
    background: transparent;
    padding: 2px 0 2px 0;
    field-sizing: content;
    min-width: 40px;
    max-width: 100%;
    font-family: inherit;
    border-bottom: 1.5px solid transparent;
}

.class-card-header .class-name-input:focus {
    outline: none;
    border-bottom-color: currentColor;
}

.pencil-edit-icon {
    display: block;
    flex-shrink: 0;
    transition: opacity 0.15s;
}

.pencil-edit-icon:hover {
    opacity: 0.8 !important;
}

.class-card-header-right {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.sample-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 6px;
    white-space: nowrap;
    user-select: none;
}


.class-card-body {
    padding: 12px 14px;
}

.class-capture-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.btn-capture-one,
.btn-capture-hold,
.btn-capture-one-unified,
.btn-capture-hold-unified {
    width: auto;
    padding: 7px 14px;
    border-radius: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 34px;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
}

.btn-capture-one,
.btn-capture-one-unified {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-capture-one:active,
.btn-capture-one-unified:active {
    background: var(--bg);
    transform: scale(0.98);
}

.btn-capture-one-unified:hover,
.btn-capture-hold-unified:hover {
    filter: brightness(0.9);
}

.btn-capture-hold,
.btn-capture-hold-unified {
    color: white;
    border: none;
}

.btn-capture-hold:active,
.btn-capture-hold-unified:active {
    filter: brightness(0.9);
    transform: scale(0.98);
}

.hold-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: white;
    opacity: 0.85;
    flex-shrink: 0;
}

.sample-gallery {
    display: none;
    flex-wrap: wrap;
    gap: 4px;
    padding-top: 4px;
    margin-bottom: 8px;
    max-height: 120px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(0,0,0,0.12) transparent;
}

.training-class-card.class-card-active .sample-gallery {
    display: flex;
}

.sample-thumb {
    position: relative;
    width: 56px;
    height: 56px;
    flex-shrink: 0;
}

.sample-thumb img {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: 6px;
    display: block;
}

.btn-delete-sample {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--error);
    color: white;
    border: 1.5px solid white;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
    z-index: 1;
}

.btn-delete-sample:active {
    background: #c5303e;
    transform: scale(0.9);
}


.btn-add-class {
    width: auto;
    align-self: flex-start;
    margin-top: 0.75rem;
    padding: 0.5rem 0.875rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 700;
    background: var(--surface);
    color: var(--primary);
    border: 2px dashed var(--primary);
    cursor: pointer;
    font-family: inherit;
    touch-action: manipulation;
}

.btn-add-class:hover {
    background: rgba(0, 159, 149, 0.08);
}

.btn-add-class:active {
    background: #e8f5f4;
}

.training-actions {
    background: var(--surface);
    border-top: 2px solid var(--border);
    padding: 0.75rem 1rem;
    flex-shrink: 0;
}

.training-actions .btn-primary {
    max-width: 400px;
    margin: 0 auto;
    display: block;
}

.training-actions .btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.training-progress {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    transition: width 0.3s;
    width: 0%;
}

/* ============================================
   PROJECT TYPE MODAL
   ============================================ */

.project-type-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.btn-project-type {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.25rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
    cursor: pointer;
    text-align: left;
    transition: border-color 0.2s;
    font-family: inherit;
    width: 100%;
}

.btn-project-type:hover {
    filter: brightness(0.93);
    border-color: var(--primary);
}

.btn-project-type:active {
    border-color: var(--primary);
    background: #e8f5f4;
}

.type-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.type-label {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
    display: block;
}

.type-desc {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 0.25rem;
    display: block;
}

/* ============================================
   TRAINING SCREEN - DESKTOP RESPONSIVE
   ============================================ */

@media (min-width: 768px) {
    .training-content {
        flex-direction: row;
        padding: 1.5rem;
        gap: 1.5rem;
        overflow: hidden;
    }

    .training-webcam-container {
        flex: 1;
        aspect-ratio: auto;
        max-width: 50%;
    }

    .training-classes-panel {
        flex: 1;
        overflow-y: auto;
        min-height: 0;
    }
}

/* ============================================
   TRAINING SCREEN
   ============================================ */

.training-capture-section {
    flex: 1;
    display: flex;
    flex-direction: row;
    overflow-y: auto;
    min-height: 0;
}

.training-capture-section.hidden {
    display: none;
}

.capture-webcam-column {
    flex: 1;
    min-width: 0;
    border-right: none;
    background: var(--bg);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 1.25rem;
    position: sticky;
    top: 0;
    align-self: flex-start;
    max-height: 100vh;
}

.capture-visor-wrap {
    position: relative;
    width: min(100%, calc(100vh - 80px));
    aspect-ratio: 1;
    border-radius: 12px;
    overflow: hidden;
}

.capture-webcam-container {
    width: 100%;
    height: 100%;
    background: #000;
}

.capture-webcam-container canvas {
    width: 100%;
    height: auto;
    display: block;
}

.capture-classes-column {
    flex: 1;
    overflow: hidden;
    padding: 10px;
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: #f5f5f5;
}

/* ============================================
   PREDICTION SCREEN
   ============================================ */

.prediction-layout {
    min-height: 100vh;
    max-height: 100vh;
    display: flex;
    flex-direction: column;
}

.prediction-header {
    height: 44px;
    padding: 0 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: none;
    background: #009f95;
    flex-shrink: 0;
}

.prediction-header .btn-back {
    padding: 4px;
    min-width: 28px;
    min-height: 28px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 6px;
    flex-shrink: 0;
    color: #fff;
}

.prediction-header h2 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.prediction-body {
    display: flex;
    flex-direction: row;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.prediction-main-column {
    flex: 0 0 320px;
    min-width: 0;
    display: flex;
    flex-direction: column;
    border-right: 2px solid var(--border);
}

.prediction-main-content {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 1.25rem;
    background: #f5f5f5;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.12) transparent;
}

.prediction-main-content::-webkit-scrollbar {
    width: 4px;
}

.prediction-main-content::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.12);
    border-radius: 2px;
}

@media (max-width: 700px) {
    .training-capture-section {
        flex-direction: column;
        overflow: hidden;
    }
    .capture-webcam-column {
        width: 100%;
        position: static;
        flex-shrink: 0;
        border-right: none;
        border-bottom: none;
        padding: 0.75rem;
        display: flex;
        align-items: flex-start;
        justify-content: center;
        background: #f5f5f5;
        z-index: 2;
    }
    .capture-classes-column {
        flex: 1;
        min-height: 0;
        overflow: hidden;
    }
    .classes-card {
        flex: 1;
        min-height: 0;
    }
    .classes-card-body {
        flex: 1;
        overflow-y: auto;
        min-height: 0;
    }
    #trainingClassesList {
        overflow-y: auto;
        flex: 1;
        min-height: 0;
    }
    .capture-webcam-container {
        width: 70%;
        max-width: 280px;
    }
}

#trainingClassesList {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.12) transparent;
}

#trainingClassesList::-webkit-scrollbar {
    width: 4px;
}

#trainingClassesList::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.12);
    border-radius: 2px;
}

#trainingClassesList::-webkit-scrollbar-track {
    background: transparent;
}

.btn-add-class {
    flex-shrink: 0;
}

/* ===== Classes card (training screen) ===== */

.classes-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 14px;
    border: 1px solid #d4ede9;
    overflow: hidden;
    min-height: 0;
}

.classes-card-body {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 10px;
    background: #f0faf9;
    scrollbar-width: thin;
}

.classes-card-footer {
    padding: 10px;
    background: #f0faf9;
    border-top: 1px solid #d4ede9;
    flex-shrink: 0;
}

.classes-card-footer .btn-primary {
    width: 100%;
    padding: 0.625rem 1.5rem;
    font-size: 1rem;
    min-height: 40px;
    border-radius: 8px;
    box-shadow: none;
}

.classes-card-footer .btn-primary:hover:not(:disabled) {
    filter: brightness(0.9);
}

.classes-card-footer .btn-primary:disabled {
    background: #b0b0b0;
    box-shadow: none;
    cursor: not-allowed;
}

.train-btn-pct {
    display: none;
    font-size: 0.8em;
    opacity: 0.85;
    margin-left: 0.4rem;
}

#trainBtn.training .train-btn-pct {
    display: inline;
}

.class-menu-wrapper {
    position: relative;
}

.btn-class-menu {
    background: none;
    border: none;
    cursor: pointer;
    padding: 3px 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
    transition: opacity 0.15s, background 0.15s;
    min-width: 26px;
    min-height: 26px;
}

.btn-class-menu:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.08);
}

.class-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 4px);
    background: var(--card-bg, #fff);
    border: 1px solid var(--border, #e0e0e0);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    z-index: 200;
    min-width: 160px;
    overflow: hidden;
}

.class-dropdown.open {
    display: block;
}

.class-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    font-family: inherit;
    color: var(--text, #333);
    text-align: left;
    transition: background 0.12s;
    white-space: nowrap;
}

.class-dropdown-item:hover {
    background: var(--bg, #f5f5f5);
}

.class-dropdown-item:disabled {
    opacity: 0.4;
    cursor: default;
}

.class-dropdown-item:disabled:hover {
    background: none;
}

.class-dropdown-item.danger {
    color: #e53935;
}

.class-dropdown-item.danger:hover {
    background: #fef2f2;
}

/* Acciones en la sección de predicciones */
.prediction-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

/* ===== Tarjeta de predicciones ===== */

.predictions-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 14px;
    border: 1px solid #d4ede9;
    overflow: hidden;
}

.predictions-card-header {
    padding: 10px 14px;
    background: #009f95;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.predictions-card-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    background: #f0faf9;
}

.predictions-card-footer {
    display: flex;
    gap: 6px;
    padding: 8px;
    background: #f0faf9;
    border-top: 1px solid #d4ede9;
}

/* ===== Flip buttons en training y preview ===== */

.btn-capture-flip {
    bottom: 0.75rem;
    right: 0.75rem;
}

.btn-preview-flip {
    bottom: 1.75rem;
    right: 1.75rem;
}

.btn-pred-connect {
    flex: 1;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    background: var(--primary);
    color: #fff;
    transition: background 0.15s;
}

.btn-pred-connect:hover {
    background: var(--primary-hover);
}

.btn-pred-connect.connected {
    background: var(--error);
}

.btn-pred-connect.connected:hover {
    background: #c0303b;
}

.btn-pred-retrain {
    flex: 1;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
    transition: background 0.15s;
}

.btn-pred-retrain:hover {
    background: rgba(0, 159, 149, 0.08);
}


.prediction-webcam-wrapper {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    background: #000;
    min-height: 100px;
}

.prediction-webcam-wrapper canvas {
    width: 100%;
    height: auto;
    display: block;
}

.training-predictions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}


/* MakeCode inline panel */
.makecode-inline-panel {
    flex: 1;
    min-width: 480px;
    display: flex;
    flex-direction: column;
    border-left: 2px solid var(--border);
    overflow: hidden;
}

.makecode-inline-panel.hidden {
    display: none;
}


.makecode-inline-panel iframe {
    flex: 1;
    width: 100%;
    height: 100%;
    border: none;
    min-height: 500px;
}


.class-capture-buttons {
    display: flex;
    flex-direction: row;
    gap: 0.5rem;
    margin-bottom: 0.625rem;
}

/* ============================================
   AUDIO TRAINING — recording buttons & sample bar
   ============================================ */

.btn-audio-record,
.btn-audio-record-hold {
    width: auto;
    padding: 7px 14px;
    border-radius: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 34px;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
    transition: background 0.15s, opacity 0.15s;
}

.btn-audio-record {
    background: var(--primary);
    color: white;
    border: none;
}

.btn-audio-record:active {
    background: var(--primary-hover);
    transform: scale(0.98);
}

.btn-audio-record-hold {
    background: var(--surface);
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.btn-audio-record.recording {
    background: #e63946;
    animation: pulse-recording 0.6s infinite;
}

.btn-audio-record-hold.capturing {
    background: #e63946 !important;
    color: white;
    border-color: #c5303e;
    animation: pulse-recording 0.6s infinite;
}

@keyframes pulse-recording {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ── Audio Record Countdown Modal ── */
.audio-record-cancel-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    border: 2px solid rgba(255, 255, 255, 0.35);
    color: white;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    transition: background 0.15s;
    touch-action: manipulation;
}

.audio-record-cancel-btn.visible {
    display: flex;
}

.audio-record-cancel-btn:active {
    background: rgba(255, 255, 255, 0.35);
}

.audio-record-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

.audio-record-modal.hidden {
    display: none;
}

.audio-record-modal-content {
    text-align: center;
    color: white;
}

.countdown-number {
    font-size: 120px;
    font-weight: 800;
    font-family: 'Nunito', sans-serif;
    line-height: 1;
    margin-bottom: 16px;
}

.countdown-number.pulse {
    animation: countdown-pulse 0.4s ease-out;
}

@keyframes countdown-pulse {
    0% { transform: scale(1.4); opacity: 0.6; }
    100% { transform: scale(1); opacity: 1; }
}

.countdown-label {
    font-size: 24px;
    font-weight: 600;
    font-family: 'Nunito', sans-serif;
}

.countdown-number.recording {
    color: #e63946;
    animation: countdown-recording-pulse 0.5s infinite;
}

@keyframes countdown-recording-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.countdown-number.done {
    color: #009f95;
    font-size: 80px;
}

/* Training overlay — fullscreen progress during model training */
.training-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

.training-overlay.hidden {
    display: none;
}

.training-overlay-content {
    text-align: center;
    color: white;
}

.training-overlay-pct {
    font-size: 100px;
    font-weight: 800;
    font-family: 'Nunito', sans-serif;
    line-height: 1;
    margin-bottom: 16px;
    transition: opacity 0.15s;
}

.training-overlay-label {
    font-size: 22px;
    font-weight: 600;
    font-family: 'Nunito', sans-serif;
    opacity: 0.85;
}

.training-overlay-pct.done {
    color: #009f95;
    font-size: 80px;
}

/* Sample progress bar (all trainers) */
.sample-progress-wrap {
    height: 4px;
    background: #e0e0e0;
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 8px;
}

.sample-progress-fill {
    height: 100%;
    background: #EF9F27;
    border-radius: 2px;
    transition: width 0.3s, background-color 0.3s;
}

.sample-progress-fill.ready {
    background: var(--primary);
}

@media (max-width: 1023px) {
    /* prediction screen: MakeCode arriba, video+preds abajo */
    .prediction-body {
        flex-direction: column-reverse;
    }

    .prediction-main-column {
        flex: 1;
        min-height: 0;
        overflow: hidden;
        border-right: none;
        border-top: 1px solid var(--border);
    }

    .prediction-main-content {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.5rem;
        padding: 0.5rem;
        overflow-y: auto;
    }

    .prediction-body .makecode-inline-panel {
        flex: 1;
        min-width: 0;
        min-height: 0;
        border-left: none;
        border-bottom: 1px solid var(--border);
    }

    .prediction-body .makecode-inline-panel iframe {
        min-height: 0;
    }

    .prediction-webcam-wrapper {
        width: 160px;
        height: 160px;
        aspect-ratio: auto;
        flex-shrink: 0;
        border-radius: 8px;
    }

    .prediction-webcam-wrapper canvas {
        width: 160px !important;
        height: 160px !important;
    }

    .training-predictions {
        flex: 1;
        min-width: 100px;
    }

    .prediction-item {
        padding: 0.5rem 0.625rem;
    }

    .prediction-item-header {
        margin-bottom: 0.25rem;
    }

    .class-name,
    .confidence {
        font-size: 0.875rem;
    }

    .prediction-actions {
        width: 100%;
    }

    .btn-video-action {
        width: 32px;
        height: 32px;
    }
}

/* MakeCode fallback overlay (shown when MakeCode iframe fails to load) */
.makecode-fallback-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.97);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    padding: 20px;
}
.makecode-fallback-card {
    max-width: 420px;
    text-align: center;
    padding: 32px 24px;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
    border: 1px solid #e0e0e0;
}
.makecode-fallback-card h3 {
    margin: 0 0 12px;
    color: #009f95;
    font-size: 1.25rem;
    font-weight: 700;
}
.makecode-fallback-card p {
    margin: 0 0 20px;
    color: #555;
    font-size: 0.95rem;
    line-height: 1.5;
}
.makecode-fallback-retry {
    min-width: 180px;
}

/* ===== Header de columna de clases (training screen) ===== */

.training-classes-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    background: #009f95;
    flex-shrink: 0;
}

.training-classes-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin: 0;
}

.add-class-header-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: #fff;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
    touch-action: manipulation;
}

.add-class-header-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.add-class-header-btn:active {
    background: rgba(255, 255, 255, 0.3);
}

/* ===== Modal: Probar modelo ===== */

.preview-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.preview-modal.hidden {
    display: none;
}

.preview-modal-content {
    background: #f5f5f5;
    border-radius: 16px;
    width: 100%;
    max-width: 900px;
    max-height: 95vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.preview-modal-header {
    height: 44px;
    padding: 0 18px;
    display: flex;
    align-items: center;
    background: #009f95;
    flex-shrink: 0;
}

.preview-modal-title {
    font-size: 15px;
    font-weight: 700;
    margin: 0;
    color: #fff;
}

.preview-modal-subtitle {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    margin: 2px 0 0 0;
}

.preview-modal-body {
    display: flex;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.preview-visor-col {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    position: relative;
}

.preview-visor-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    min-height: 240px;
    position: relative;
}

.preview-visor-wrapper canvas,
.preview-visor-wrapper video {
    max-width: 100%;
    max-height: 100%;
    border-radius: 12px;
}

.preview-classes-col {
    width: 270px;
    padding: 10px;
    display: flex;
    flex-direction: column;
}

.preview-classes-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 14px;
    border: 1px solid #d4ede9;
    overflow: hidden;
    min-height: 0;
}

.preview-classes-card-header {
    padding: 10px 14px;
    background: #009f95;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.preview-classes-card-body {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: #f0faf9;
}

.preview-class-card {
    border-radius: 8px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: border-color 0.15s;
    background: #fff;
    border: 1px solid #d4ede9;
    border-left: 3px solid transparent;
}

.preview-class-card.winner {
    /* border-left-color set dynamically via JS */
}

.preview-class-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
}

.preview-class-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.preview-class-name {
    font-weight: 600;
    font-size: 13px;
    color: #333;
    flex: 1;
}

.preview-class-pct {
    font-size: 14px;
    font-weight: 600;
}

.preview-conf-track {
    height: 6px;
    border-radius: 3px;
    background: #f0f0f0;
    overflow: hidden;
}

.preview-conf-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.15s ease-out;
}

.preview-modal-footer {
    padding: 14px 20px;
    border-top: 1px solid #e0e0e0;
    display: flex;
    gap: 10px;
}

.preview-btn {
    flex: 1;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: none;
    transition: opacity 0.15s;
}

.preview-btn:hover {
    opacity: 0.9;
}

.preview-btn-primary {
    background: #009f95;
    color: white;
}

.preview-btn-secondary {
    background: #f5f5f5;
    color: #333;
    border: 1px solid #e0e0e0;
}

@media (max-width: 640px) {
    .preview-modal {
        padding: 0;
    }

    .preview-modal-content {
        max-width: 100%;
        max-height: 100vh;
        border-radius: 0;
        height: 100vh;
    }

    .preview-modal-body {
        flex-direction: column;
    }

    .preview-visor-col {
        padding: 12px;
    }

    .preview-visor-wrapper {
        min-height: 180px;
        max-height: 40vh;
    }

    .preview-classes-col {
        width: 100%;
        padding: 0 10px 10px;
    }

    .preview-modal-footer {
        flex-direction: column-reverse;
        gap: 8px;
    }
}