/* Tokens y Variables Globales */
:root {
    --bg-color: #0f172a;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --card-bg: rgba(30, 41, 59, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Colores de salud */
    --healthy: #10b981;
    --healthy-bg: rgba(16, 185, 129, 0.2);
    --moderate: #f59e0b;
    --moderate-bg: rgba(245, 158, 11, 0.2);
    --unhealthy: #ef4444;
    --unhealthy-bg: rgba(239, 68, 68, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    background-image: radial-gradient(circle at top right, #1e293b, #0f172a);
    -webkit-tap-highlight-color: transparent;
    accent-color: var(--accent-color);
    overscroll-behavior-y: none;
}

.language-switcher {
    position: absolute;
    top: 14px;
    right: 20px;
    display: flex;
    gap: 4px;
    padding: 4px;
    background: rgba(15, 23, 42, 0.72);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    backdrop-filter: blur(12px);
    z-index: 10;
}

.language-option {
    width: auto;
    min-width: 42px;
    min-height: 34px;
    padding: 8px 10px;
    border-radius: 999px;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0;
    box-shadow: none;
}

.language-option.active {
    background: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.32);
}

/* Créditos del autor */
.author-credits {
    position: absolute;
    top: 15px;
    left: 20px;
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.5;
    font-weight: 300;
    pointer-events: none;
    letter-spacing: 0.5px;
}

.app-container {
    width: 100%;
    max-width: 500px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Encabezado */
header {
    text-align: center;
    margin-top: 10px;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

header h1 .accent {
    color: var(--accent-color);
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 5px;
}

/* Espacios para Ads */
.ad-space {
    width: 100%;
    height: 60px;
    background: rgba(0,0,0,0.2);
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Upload Box */
.upload-box {
    background: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: 20px;
    padding: 40px 20px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-box:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.icon-container {
    color: var(--accent-color);
    margin-bottom: 15px;
    animation: float 3s ease-in-out infinite;
}

.upload-box h2 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.upload-box p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

/* Botones */
button {
    border: none;
    border-radius: 12px;
    padding: 14px 24px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: scale(1.02);
}

.btn-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    margin-top: 15px;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.05);
}

/* Preview Section */
.image-wrapper {
    position: relative;
    width: 100%;
    height: 250px;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

#image-preview {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Animación de escaneo */
.scanning-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-color);
    animation: scan 2s linear infinite;
}

.scan-text {
    color: white;
    font-weight: 600;
    letter-spacing: 1px;
    animation: pulse 1.5s infinite;
}

/* Tarjeta de Resultados Glassmorphism */
.result-card.glass {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 24px;
}

.food-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.food-header h2 {
    font-size: 1.4rem;
    text-transform: capitalize;
}

.health-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-healthy { color: var(--healthy); background: var(--healthy-bg); }
.status-moderate { color: var(--moderate); background: var(--moderate-bg); }
.status-unhealthy { color: var(--unhealthy); background: var(--unhealthy-bg); }

.calories-display {
    text-align: center;
    margin: 20px 0;
}

.cal-number {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
}

.cal-unit {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-left: 5px;
}

.suggestion-box {
    background: rgba(0,0,0,0.2);
    padding: 15px;
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
}

.suggestion-box h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.suggestion-box p {
    font-size: 0.95rem;
    line-height: 1.5;
}

.detected-items-panel {
    margin-top: 6px;
    margin-bottom: 14px;
}

.quality-notice {
    margin: 8px 0 12px;
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.45;
}

.quality-notice.is-warning {
    color: #fbbf24;
}

.panel-title {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.detected-items-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.detected-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    gap: 10px;
    align-items: center;
    padding: 10px 12px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
}

.detected-item-empty {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.detected-item-main {
    min-width: 0;
}

.detected-item-name {
    font-weight: 600;
    font-size: 0.95rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.detected-item-meta {
    color: var(--text-muted);
    font-size: 0.76rem;
    margin-top: 2px;
    text-transform: none;
}

.detected-item-kcal {
    color: var(--text-main);
    font-weight: 700;
    font-size: 0.9rem;
    white-space: nowrap;
}

.detected-item-confidence {
    color: var(--accent-color);
    font-size: 0.74rem;
    font-weight: 700;
    white-space: nowrap;
    text-align: right;
}

.macro-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 14px;
}

.macro-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.macro-label {
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.macro-value {
    font-size: 1rem;
}

.recommendations-box {
    margin-top: 12px;
    background: rgba(0,0,0,0.18);
    padding: 15px;
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
}

.recommendations-box h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.recommendations-list {
    padding-left: 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.recommendations-list li {
    font-size: 0.92rem;
    line-height: 1.45;
}

.debug-info {
    color: var(--text-muted);
    font-size: 0.75rem;
    opacity: 0.65;
}

/* Alternativas cuando la IA no esta 100% segura */
.alternatives-box {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.alternatives-title {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 2px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.alternative-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-size: 0.85rem;
    font-weight: 400;
    cursor: pointer;
    text-align: left;
    transition: background 0.15s ease, transform 0.1s ease, border-color 0.15s ease;
}

.alternative-item:hover {
    background: rgba(59, 130, 246, 0.12);
    border-color: var(--accent-color);
    transform: translateX(2px);
}

.alternative-item:active {
    transform: scale(0.99);
}

.alternative-item .alt-name {
    flex: 1;
    font-weight: 500;
    text-transform: capitalize;
}

.alternative-item .alt-cal {
    color: var(--text-muted);
    font-size: 0.78rem;
    white-space: nowrap;
}

.alternative-item .alt-pct {
    color: var(--accent-color);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
}

/* Las alternativas heredan min-height de `button`; aqui lo aflojamos para que se vean compactas. */
@media (max-width: 700px) {
    .alternative-item {
        min-height: 0;
        padding: 11px 12px;
        font-size: 0.82rem;
    }
    .alternatives-title {
        font-size: 0.72rem;
    }
}

/* Utilidades */
.hidden {
    display: none !important;
}

/* Animaciones */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes scan {
    0% { top: 0; }
    50% { top: 100%; }
    100% { top: 0; }
}

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

/* Interstitial Ad Modal (Fase 5) — base (desktop) */
.ad-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.ad-modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 16px;
    width: 90%;
    max-width: 400px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.ad-label {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ad-container-interstitial {
    width: 100%;
    min-height: 250px;
    background: rgba(0,0,0,0.3);
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-weight: 300;
}

/* ===== AUTHOR POPOVER (CEO bubble) — BASE DESKTOP ===== */
.author-popover {
    position: fixed;
    z-index: 200;
    pointer-events: none;
}

.author-popover-card {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(20px);
    box-shadow:
        0 16px 40px rgba(0,0,0,0.35),
        0 0 0 1px rgba(255,255,255,0.03) inset;
    transform: scale(0.9) translateY(10px);
    opacity: 0;
    transition:
        transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
        opacity 0.25s ease;
    pointer-events: auto;
}

.author-popover.visible .author-popover-card {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.author-popover.visible .author-popover-progress span {
    animation: popover-progress 5s linear forwards;
}

.author-popover.hiding .author-popover-card {
    transform: scale(0.9) translateY(-10px);
    opacity: 0;
}

.author-popover-photo {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid rgba(59,130,246,0.3);
    flex-shrink: 0;
}

.author-popover-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    text-align: left;
    min-width: 0;
}

.author-popover-name {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.author-popover-role {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-weight: 400;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.author-popover-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: rgba(255,255,255,0.06);
    border-radius: 0 0 16px 16px;
    overflow: hidden;
}

.author-popover-progress span {
    display: block;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-color), #8b5cf6);
    border-radius: 0 0 16px 16px;
    transform-origin: left;
}

@keyframes popover-progress {
    to { width: 100%; }
}

.author-popover-tail {
    position: absolute;
    left: 32px;
    bottom: -10px;
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid var(--card-bg);
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.2));
}

@media (max-width: 700px) {
    body {
        min-height: 100svh;
        flex-direction: column;
        align-items: flex-start;
        background-image:
            radial-gradient(circle at 90% -10%, rgba(59, 130, 246, 0.28), transparent 34%),
            radial-gradient(circle at 8% 18%, rgba(16, 185, 129, 0.14), transparent 28%),
            linear-gradient(180deg, #0f172a 0%, #111827 100%);
        overflow-x: hidden;
    }

    .author-credits {
        position: static;
        width: 100%;
        padding: calc(12px + env(safe-area-inset-top)) 18px 0;
        text-align: center;
        font-size: 0.68rem;
        opacity: 0.42;
    }

    .language-switcher {
        position: fixed;
        top: calc(10px + env(safe-area-inset-top));
        right: max(12px, env(safe-area-inset-right));
        padding: 3px;
        background: rgba(15, 23, 42, 0.88);
        box-shadow: 0 12px 34px rgba(0, 0, 0, 0.22);
    }

    .language-option {
        min-width: 44px;
        min-height: 36px;
        padding: 8px 10px;
        font-size: 0.76rem;
    }

    .app-container {
        max-width: none;
        min-height: calc(100svh - 24px);
        padding: 10px max(14px, env(safe-area-inset-left)) calc(18px + env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-right));
        gap: 14px;
    }

    .ad-space {
        height: 52px;
        border-radius: 10px;
        font-size: 0.68rem;
        letter-spacing: 0.08em;
        background: rgba(2, 6, 23, 0.32);
    }

    header {
        margin-top: 2px;
        padding: 0 clamp(52px, 16vw, 64px);
    }

    header h1 {
        font-size: clamp(1.85rem, 9vw, 2.25rem);
        line-height: 1;
        letter-spacing: 0;
    }

    header p {
        margin-top: 8px;
        font-size: 0.9rem;
        line-height: 1.3;
    }

    .loading-bar {
        padding: 0.65rem 0.75rem;
    }

    .loading-text {
        font-size: 0.8rem;
        line-height: 1.3;
    }

    .upload-box {
        min-height: min(58svh, 460px);
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: clamp(28px, 8svh, 54px) 20px;
        border-radius: 24px;
        border-color: rgba(255, 255, 255, 0.16);
        background: rgba(30, 41, 59, 0.82);
        box-shadow: 0 22px 60px rgba(0, 0, 0, 0.26);
    }

    .upload-box:hover {
        transform: none;
    }

    .icon-container {
        margin-bottom: 18px;
    }

    .icon-container svg {
        width: 56px;
        height: 56px;
    }

    .upload-box h2 {
        max-width: 280px;
        margin: 0 auto 10px;
        font-size: clamp(1.35rem, 6vw, 1.75rem);
        line-height: 1.08;
        letter-spacing: 0;
    }

    .upload-box p {
        margin-bottom: 28px;
        font-size: 0.95rem;
    }

    button {
        min-height: 52px;
        padding: 16px 20px;
        border-radius: 14px;
        font-size: 1rem;
        touch-action: manipulation;
    }

    .btn-primary:hover,
    .btn-secondary:hover {
        transform: none;
    }

    .image-wrapper {
        height: min(48svh, 420px);
        min-height: 270px;
        margin-bottom: 14px;
        border-radius: 24px;
    }

    .result-card.glass {
        padding: 18px;
        border-radius: 20px;
        background: rgba(30, 41, 59, 0.86);
    }

    .food-header {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
        align-items: start;
        margin-bottom: 16px;
        padding-bottom: 14px;
    }

    .food-header h2 {
        font-size: clamp(1.2rem, 6vw, 1.65rem);
        line-height: 1.12;
        overflow-wrap: anywhere;
    }

    .health-badge {
        justify-self: start;
        border-radius: 999px;
        font-size: 0.72rem;
        letter-spacing: 0;
    }

    .calories-display {
        margin: 18px 0;
        display: flex;
        align-items: flex-end;
        justify-content: center;
        gap: 6px;
        flex-wrap: wrap;
    }

    .cal-number {
        font-size: clamp(3rem, 18vw, 4.7rem);
    }

    .cal-unit {
        margin: 0 0 0.35rem;
        font-size: 1rem;
    }

    .suggestion-box {
        padding: 16px;
        border-radius: 14px;
    }

    .detected-item {
        grid-template-columns: minmax(0, 1fr);
        gap: 4px;
        align-items: start;
    }

    .detected-item-confidence {
        text-align: left;
    }

    .macro-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .suggestion-box p {
        font-size: 0.96rem;
        line-height: 1.48;
    }

    .btn-secondary {
        margin-top: 12px;
    }

    .ad-modal {
        align-items: flex-end;
        padding: 14px max(14px, env(safe-area-inset-right)) calc(14px + env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));
    }

    .ad-modal-content {
        width: 100%;
        max-width: 480px;
        border-radius: 22px;
        padding: 18px;
    }

    .ad-container-interstitial {
        min-height: min(42svh, 320px);
        border-radius: 12px;
    }

    /* Author popover — móvil (se posiciona via JS) */
    .author-popover {
        pointer-events: none;
    }

    .author-popover-card {
        padding: 16px 20px;
        gap: 8px;
        border-radius: 22px;
        box-shadow:
            0 24px 48px rgba(0,0,0,0.4),
            0 0 0 1px rgba(255,255,255,0.04) inset;
    }

    .author-popover-photo {
        width: 52px;
        height: 52px;
    }

    .author-popover-name {
        font-size: 0.95rem;
    }

    .author-popover-role {
        font-size: 0.7rem;
    }
}

@media (max-width: 380px) {
    header {
        padding: 0 clamp(48px, 18vw, 56px);
    }

    header h1 {
        font-size: 1.85rem;
    }

    .upload-box {
        padding-left: 16px;
        padding-right: 16px;
    }
}

/* Barra de Progreso de Carga de IA */
.loading-bar {
    padding: 1rem 1.5rem;
    text-align: center;
}

.loading-text {
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    animation: pulse 1.5s ease-in-out infinite;
}

.progress-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-color), #8b5cf6, var(--accent-color));
    background-size: 200% 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
    animation: shimmer 2s linear infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

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