/* ==============================================================
   SOPHIE: VOCAB MASTER - STYLE CSS - V9.1 (LUXURY WOW EDITION 💎✨)
   ============================================================== */

/* --- 1. IMPORTAR FUENTE PROFESIONAL (INTER) --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* --- 2. IMPORTAR ICONOS PROFESIONALES (FONTAWESOME) --- */
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css');

/* --- 3. VARIABLES DE COLOR LUXURY --- */
:root {
    /* Modo Oscuro (Aurora Borealis) */
    --color-fondo-1: #0a0e17;      /* Negro Noche */
    --color-fondo-2: #1c1130;      /* Morado Aterciopelado */
    --color-fondo-3: #112d3c;      /* Azul Noche */
    
    --card-bg: rgba(255, 255, 255, 0.03); /* Cristal Esmerilado ultra sutil */
    --text-primary: #f8fafc;
    --text-secondary: #a1a1aa;
    --accent-purple: #BB86FC;     /* Morado Neón Suave */
    --accent-hover: #985EFF;
    --border-color: rgba(255, 255, 255, 0.08); /* Líneas Divisorias sutiles */
    
    /* Variables de Transición y Fuente */
    --transition-premium: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1); /* Transición suave */
    --font-main: 'Inter', sans-serif;
}

/* Modo Claro (Dorado/Glow) - ¡Aquí está tu sol reencarnado! */
body.light-theme {
    --color-fondo-1: #fffbeb;      /* Crema Suave */
    --color-fondo-2: #fff7ed;      /* Naranja muy suave */
    --color-fondo-3: #f0fdf4;      /* Verde muy suave */
    
    --card-bg: rgba(255, 255, 255, 0.8); /* Cristal Blanco */
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --accent-purple: #FFD700;     /* Dorado Sun-Kissed */
    --accent-hover: #fcd34d;
    --border-color: rgba(0, 0, 0, 0.08);
}

/* --- 4. RESETEO Y FONDO ANIMADO ADICTIVO (AURORA) --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    
    /* EL FONDO AURORA BOREALIS ADICTIVO */
    background: linear-gradient(-45deg, var(--color-fondo-1), var(--color-fondo-2), var(--color-fondo-3), var(--color-fondo-2));
    background-size: 400% 400%;
    animation: auroraAnimation 15s ease infinite; /* Animación hipnótica */
    transition: background 1s ease; /* Transición suave al cambiar el modo */
}

@keyframes auroraAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* --- 5. CONTENEDOR PRINCIPAL (ESTILO APP MÓVIL LUXURY) --- */
.app-container {
    max-width: 480px;
    margin: 0 auto;
    padding: 20px;
    padding-bottom: 100px;
}

/* --- 6. ESTILOS DE CABECERA (HEADER PREMIUM) --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -1px;
    text-shadow: 0 0 10px rgba(187, 134, 252, 0.3); /* Resplandor */
}

body.light-theme h1 { color: #111827; text-shadow: none; }

h1 span { color: var(--accent-purple); }

.streak-counter {
    background: var(--card-bg);
    padding: 8px 15px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: #FFB74D; /* Color Fuego Sun */
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* --- 7. ZONA DE ENTRADA (INPUT AREA PREMIUM) --- */
.input-section { margin-bottom: 25px; }

textarea {
    width: 100%;
    height: 150px;
    background-color: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 15px;
    font-family: var(--font-main);
    font-size: 0.95rem;
    resize: none;
    transition: var(--transition-premium);
    backdrop-filter: blur(5px); /* Efecto Glassmorphism */
}

textarea:focus {
    outline: none;
    border-color: var(--accent-purple);
    box-shadow: 0 0 15px rgba(187, 134, 252, 0.2);
}

/* --- 8. SELECTORES Y BOTONES DE IDIOMA --- */
.controls-row {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    align-items: center;
}

select {
    flex: 1;
    background-color: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23a1a1aa%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22/%3E%3C/svg%3E');
    background-repeat: no-repeat;
    background-position: right 10px top 50%;
    background-size: 12px auto;
}

body.light-theme select { color: #111827; }

.icon-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 12px;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-premium);
}

.icon-btn:hover {
    color: var(--accent-purple);
    border-color: var(--accent-purple);
}

.icon-btn:active { transform: scale(0.92); }

/* --- 9. BOTONES PRINCIPALES (PRIMARY BUTTONS LUXURY) --- */
.primary-btn {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 18px;
    font-family: var(--font-main);
    font-weight: 700;
    font-size: 1.05rem;
    cursor: pointer;
    transition: var(--transition-premium);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

/* Botón Morado (Magia KI) */
#magicOrderBtn {
    background-color: var(--accent-purple);
    color: #111827;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#magicOrderBtn:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 0 15px rgba(187, 134, 252, 0.4);
}

/* Botón Azul (Lektion verarbeiten) */
#processBtn {
    background-color: transparent;
    border: 2px solid var(--accent-purple);
    color: var(--accent-purple);
}

#processBtn:hover {
    background-color: rgba(187, 134, 252, 0.1);
}

.primary-btn:active {
    transform: scale(0.97);
    box-shadow: 0 2px 5px rgba(0,0,0,0.5);
}

/* --- 10. ZONA DE LECCIONES (LAB AREA PREMIUM) --- */
.lab-section { margin-top: 30px; }

h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

body.light-theme h2 { color: #111827; }

.lab-row {
    background-color: var(--card-bg);
    border-radius: 18px;
    padding: 18px;
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-premium);
    backdrop-filter: blur(5px);
}

/* EL EFECTO WOW DE TARJETA FLOTANTE */
.lab-row:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 8px 30px rgba(187, 134, 252, 0.15); /* Resplandor suave al pasar el ratón */
    transform: translateY(-3px);
}

.vocab-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.vocab-word {
    font-weight: 600;
    font-size: 1.1rem;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 8px;
}

body.light-theme .vocab-word { color: #111827; }

/* Botones de Audio Premium */
.play-example {
    background: rgba(255,255,255,0.05);
    border: none;
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-purple);
    cursor: pointer;
    transition: var(--transition-premium);
}

body.light-theme .play-example { background: rgba(0,0,0,0.05); }

.play-example:hover {
    background: rgba(187, 134, 252, 0.2);
    transform: scale(1.1);
    color: #ffffff;
}

/* --- 11. HISTORIAL (NOTEBOOK GALLERY LUXURY) --- */
.gallery-section {
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}

.gallery-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 18px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: var(--transition-premium);
    border: 1px solid transparent;
}

.gallery-card:hover {
    border-color: var(--accent-purple);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.gallery-card i.fa-book {
    font-size: 1.6rem;
    color: var(--text-secondary);
    text-shadow: 0 0 5px rgba(255,255,255,0.2);
}

/* --- 12. QUIZ OVERLAY PREMIU M (GLASSMORPHISM) --- */
.quiz-overlay {
    background-color: rgba(10, 14, 23, 0.9);
    backdrop-filter: blur(12px); /* Mucho más borroso */
}

.quiz-card {
    background-color: var(--card-bg);
    border-radius: 25px;
    padding: 30px;
    border: 1px solid var(--accent-purple);
    box-shadow: 0 0 40px rgba(187, 134, 252, 0.3);
}

/* --- 13. MENÚ DE HERRAMIENTAS (GLASSMORPHISM) --- */
.tools-menu {
    display: flex;
    justify-content: space-around;
    background: var(--card-bg);
    padding: 15px;
    border-radius: 18px;
    border: 1px solid var(--border-color);
    margin-bottom: 25px;
    backdrop-filter: blur(5px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.tool-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: var(--transition-premium);
}

.tool-btn i {
    font-size: 1.4rem;
}

.tool-btn:hover {
    color: var(--accent-purple);
    transform: scale(1.05);
}

/* --- EL SOL Y LA LUNA LUXURY (INTERRUPTOR ANIMADO) --- */
.theme-switch-wrapper {
    position: relative;
    width: 60px;
    height: 30px;
}

.theme-switch-wrapper input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(255,255,255,0.1);
    transition: .4s;
    border-radius: 34px;
    border: 1px solid var(--border-color);
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 3px;
    background-color: var(--text-secondary);
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent-purple);
}

input:checked + .slider:before {
    transform: translateX(30px);
    background-color: #111827; /* Sol Dorado */
}

/* Iconos dentro del slider */
.slider .slider-icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    transition: var(--transition-premium);
}

.slider .fa-moon { left: 8px; color: var(--text-primary); opacity: 1; }
.slider .fa-sun { right: 8px; color: #111827; opacity: 0; }

input:checked + .slider .fa-moon { opacity: 0; }
input:checked + .slider .fa-sun { opacity: 1; }


/* ==============================================================
   REDISEÑO APPLE PREMIUM - V11.0 💎
   ============================================================== */

/* Fondo General Deep Navy/Black */
body {
    background-color: #050508;
    background-image: radial-gradient(circle at top, #130b24 0%, transparent 60%);
    color: #f4f4f5; /* Blanco suave, no gris muerto */
}

/* --- HEADER MINIMALISTA --- */
.apple-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0 40px 0;
}

.logo-small {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-small span {
    color: var(--accent-purple);
}

.header-tools {
    display: flex;
    align-items: center;
    gap: 15px;
}

.streak-pill {
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* --- HERO SECTION --- */
.hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 8px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.1rem;
    font-weight: 400;
    color: #a1a1aa; /* Soft gray */
    margin-bottom: 40px;
}

/* --- INPUT DOMINANTE --- */
.input-wrapper {
    width: 100%;
    margin-bottom: 25px;
    position: relative;
}

#textInput {
    width: 100%;
    height: 180px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 25px;
    color: #ffffff;
    font-size: 1.1rem;
    line-height: 1.6;
    transition: all 0.3s ease;
    resize: none;
}

#textInput:focus {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(187, 134, 252, 0.5);
    outline: none;
    box-shadow: 0 0 30px rgba(187, 134, 252, 0.1);
}

#textInput::placeholder {
    color: #52525b;
}

/* Selector de idioma sutil */
.minimal-lang-selector {
    margin-bottom: 15px;
    width: 100%;
}

.minimal-lang-selector select {
    background: transparent;
    border: none;
    color: #a1a1aa;
    font-size: 0.9rem;
    cursor: pointer;
    text-align: center;
    outline: none;
}

/* --- BOTÓN PRINCIPAL (EL REY) --- */
.apple-primary-btn {
    background: #ffffff;
    color: #000000;
    font-size: 1.2rem;
    font-weight: 600;
    padding: 18px 40px;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    width: 100%;
    max-width: 350px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 15px rgba(255,255,255,0.1);
}

.apple-primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255,255,255,0.2);
}

.micro-promise {
    font-size: 0.85rem;
    color: #71717a;
    margin-top: 15px;
    letter-spacing: 0.5px;
}

/* --- MENÚ SECUNDARIO (LIBRARY) --- */
.secondary-tools-menu {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.tool-btn {
    background: rgba(255, 255, 255, 0.03);
    color: #a1a1aa;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 15px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.2s;
}

.tool-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

/* Premium WOW Summary Box */
.premium-summary {
    margin-top: 25px;
    padding: 25px;
    background: rgba(187, 134, 252, 0.05);
    border: 1px solid rgba(187, 134, 252, 0.3);
    border-radius: 20px;
    text-align: left;
    width: 100%;
}

.premium-summary h3 {
    color: #fff;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.summary-details {
    color: #a1a1aa;
    font-size: 1rem;
    line-height: 1.8;
}

.stat-highlight {
    color: var(--accent-purple);
    font-weight: bold;
    font-size: 1.1rem;
}


/* --- 14. PANTALLA DE BIENVENIDA (SPLASH SCREEN) ALIVE SYSTEM 🧠🔥 --- */

.splash-screen {
    position: fixed;
    top: 0; left: 0; 
    width: 100%; height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    
    /* Fondo inicial oscuro que luego mutará a morado profundo */
    background-color: #030408; /* Negro casi puro */
    background-image: radial-gradient(circle at center, rgba(28, 17, 48, 0) 0%, transparent 70%);
    
    /* Doble animación: Desaparecer al final + Fondo vivo */
    animation: 
        aliveBackground 3s ease forwards,
        fadeOutSplashPremium 0.8s ease forwards;
    animation-delay: 0s, 3.5s; 
}

.splash-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px; /* Un poco más juntos para cohesión visual */
}

/* LOGO Y JERARQUÍA */
.splash-logo {
    font-size: 3.5rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -1.5px;
}

.logo-name {
    opacity: 0;
    display: inline-block;
    animation: fadedInPremium 0.6s ease forwards;
    animation-delay: 0.2s;
}

.logo-ai {
    color: var(--accent-purple);
    opacity: 0;
    display: inline-block;
    /* Aparece y luego empieza a respirar (pulse) infinitamente */
    animation: 
        fadedInPremium 0.6s ease forwards,
        breathGlow 2s ease-in-out infinite alternate;
    animation-delay: 0.8s, 1.4s;
}

/* EL TAGLINE (MÁS PRESENCIA Y CONTRASTE) */
.splash-tagline {
    font-size: 1.15rem; /* Más grande */
    font-weight: 500; /* Más peso */
    color: #f4f4f5; /* Blanco suave (Zinc-200), menos gris */
    letter-spacing: 0.5px;
    opacity: 0;
    /* Micro fade-in sutil desde abajo */
    animation: taglineReveal 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    animation-delay: 1.3s; 
}

/* --- MICRO-ANIMACIONES APPLE LEVEL --- */

/* 1. Transición de fondo (Negro a Morado profundo) */
@keyframes aliveBackground {
    0% { background-image: radial-gradient(circle at center, rgba(28, 17, 48, 0) 0%, transparent 70%); }
    100% { background-image: radial-gradient(circle at center, rgba(50, 20, 80, 0.6) 0%, transparent 80%); }
}

/* 2. Fade in estándar */
@keyframes fadedInPremium {
    0% { opacity: 0; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* 3. Fade in premium del Tagline */
@keyframes taglineReveal {
    0% { opacity: 0; transform: translateY(8px); filter: blur(2px); }
    100% { opacity: 1; transform: translateY(0); filter: blur(0); }
}

/* 4. Respiración de la Inteligencia (Pulse glow) */
@keyframes breathGlow {
    0% { text-shadow: 0 0 10px rgba(187,134,252,0.3); }
    100% { text-shadow: 0 0 25px rgba(187,134,252,0.9), 0 0 10px rgba(187,134,252,0.6); }
}

/* 5. Desvanecimiento de la pantalla */
@keyframes fadeOutSplashPremium {
    0% { opacity: 1; visibility: visible; }
    100% { opacity: 0; visibility: hidden; }
}

/* ==============================================================
   COGNITIVE DASHBOARD (SISTEMA DE PROGRESO) 🧠🧬
   ============================================================== */
.cognitive-dashboard {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    padding: 30px;
    background: rgba(20, 20, 25, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 30px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.dashboard-header h2 {
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.level-badge {
    background: rgba(187, 134, 252, 0.15);
    color: var(--accent-purple);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Brain Progress Bar */
.brain-progress-container {
    margin-bottom: 35px;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    color: #e4e4e7;
    margin-bottom: 12px;
    font-weight: 500;
}

.progress-percentage {
    color: var(--accent-purple);
    font-weight: 700;
}

.brain-bar-bg {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    overflow: hidden;
}

.brain-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #7c3aed, #c084fc);
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(187, 134, 252, 0.5);
}

.neuro-insight {
    font-size: 0.85rem;
    color: #71717a;
    margin-top: 12px;
    font-style: italic;
    text-align: right;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 20px 10px;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.05);
}

.stat-card i {
    font-size: 1.2rem;
    color: var(--accent-purple);
    margin-bottom: 10px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.75rem;
    color: #a1a1aa;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Smart Insight Box */
.smart-insight-box {
    background: linear-gradient(145deg, rgba(187, 134, 252, 0.1), rgba(187, 134, 252, 0.02));
    border: 1px solid rgba(187, 134, 252, 0.2);
    padding: 20px;
    border-radius: 20px;
    text-align: left;
    margin-bottom: 25px;
}

.insight-header {
    color: var(--accent-purple);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.smart-insight-box p {
    color: #d4d4d8;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

.smart-insight-box strong {
    color: #fff;
}

.secondary-btn-minimal {
    background: transparent;
    color: #a1a1aa;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px 25px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    width: 100%;
    transition: all 0.2s;
}

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

/* --- GOAL SELECTOR (CONTEXT CHIPS) 🎯 --- */
.goal-selector {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    width: 100%;
}

.goal-chip {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #a1a1aa;
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.goal-chip:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

.goal-chip.active {
    background: rgba(187, 134, 252, 0.15);
    color: var(--accent-purple);
    border-color: rgba(187, 134, 252, 0.4);
    box-shadow: 0 0 15px rgba(187, 134, 252, 0.1);
}

/* --- MICROCOPY DINÁMICO --- */
.goal-microcopy {
    font-size: 0.9rem;
    color: var(--accent-purple);
    margin-bottom: 20px;
    font-weight: 500;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

/* --- SEÑAL AI Y MICRO-FEEDBACK TÁCTIL --- */
.ai-signal {
    font-size: 0.8rem;
    color: #52525b; /* Un gris un poco más oscuro para que no compita con la promesa principal */
    margin-top: 8px;
    font-weight: 500;
}

/* Efecto de pulsación (glow y contracción rápida) */
.apple-primary-btn:active {
    transform: scale(0.96) !important;
    box-shadow: 0 0 25px rgba(187, 134, 252, 0.8), inset 0 0 10px rgba(0,0,0,0.1);
    transition: all 0.1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =========================================
   ⚡ SOPHIE STREAK EVOLUTION (NIVELES PRO)
   ========================================= */

/* Transición suave para que no cambie de golpe */
.streak-pill {
    transition: all 0.4s ease;
}

/* Nivel 2: 5+ Días (Glow sutil y elegante) */
.glow-tier-1 {
    box-shadow: 0 0 12px rgba(251, 191, 36, 0.3);
    border: 1px solid rgba(251, 191, 36, 0.4);
    background: rgba(251, 191, 36, 0.1);
}

/* Nivel 3: 10+ Días (Glow dinámico y premium) */
.glow-tier-2 {
    box-shadow: 0 0 15px rgba(251, 191, 36, 0.6);
    border: 1px solid rgba(251, 191, 36, 0.8);
    background: rgba(251, 191, 36, 0.15);
    animation: pulse-energy 2s infinite alternate;
}

/* Animación de latido de energía para los 10+ días */
@keyframes pulse-energy {
    0% { box-shadow: 0 0 10px rgba(251, 191, 36, 0.4); }
    100% { box-shadow: 0 0 20px rgba(251, 191, 36, 0.8); }
}


/* --- Selector de Idiomas (Suiza Edition 🇨🇭) --- */
.language-picker {
    display: flex;
    gap: 5px;
    align-items: center;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #a1a1aa; /* Color gris suave */
    padding: 4px 8px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.lang-btn.active {
    background: #a855f7; /* El morado de SOPHIE */
    color: white;
    border-color: #c084fc;
    box-shadow: 0 0 10px rgba(168, 85, 247, 0.4);
}




.notebook-card {
    background: #151515;
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.notebook-card:hover {
    background: rgba(168, 85, 247, 0.1);
    border-color: #a855f7;
}

.notebook-card h4 {
    margin: 0 0 5px 0;
    font-size: 14px;
    color: white;
}

.notebook-card .notebook-date {
    font-size: 11px;
    color: #888;
}

/* --- ESTILOS DEL NUEVO PANEL EN VIVO (Estilo iOS) --- */
.learning-panel {
    background-color: #0e0e11; /* Fondo ultra oscuro Premium */
    border-radius: 16px;
    padding: 24px;
    color: #ffffff;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    border: 1px solid rgba(255, 255, 255, 0.05); /* Borde casi invisible */
    max-width: 400px;
    margin: 20px auto;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.header-titles h3 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
}

.subtitle {
    font-size: 12px;
    color: #888888;
    margin-top: 4px;
    display: block;
}

.operator-badge {
    font-size: 10px;
    font-weight: 700;
    color: #b388ff; /* Tu lila característico */
    letter-spacing: 1px;
    background: rgba(179, 136, 255, 0.1);
    padding: 4px 8px;
    border-radius: 12px;
}

.elegant-divider {
    border: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 20px 0;
}

.live-status .status-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 14px;
    font-size: 14px;
}

.status-label {
    color: #a0a0a0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-value {
    font-weight: 500;
    letter-spacing: 0.5px;
}

.status-value.paused {
    color: #aaaaaa; /* Gris para cuando no hay acción */
}

.status-value.running {
    color: #69f0ae; /* Verde suave para cuando esté en vivo */
}

.soft-feedback {
    font-size: 13px;
    font-style: italic;
    color: #888888;
    text-align: center;
    margin: 0;
}

.passive-block {
    margin-top: 24px;
}

.passive-block h4 {
    margin: 0 0 8px 0;
    font-size: 13px;
    color: #e0e0e0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.passive-block p {
    margin: 0;
    color: #888888;
    line-height: 1.6;
    font-size: 13px;
}

.highlight-xp {
    color: #b388ff;
    font-weight: 600;
}

.minimal-cta {
    width: 100%;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    padding: 12px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    margin-top: 24px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.minimal-cta:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
}