/* ===========================
       VARIABLES CSS MODERNAS
    =========================== */
:root {
    /* Colores base con gradientes */
    --color-bg-primary: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0f0f0f 100%);
    --color-bg-secondary: linear-gradient(145deg, rgba(45, 45, 45, 0.8), rgba(36, 36, 36, 0.8));
    --color-bg-tertiary: linear-gradient(145deg, rgba(36, 36, 36, 0.9), rgba(28, 28, 28, 0.9));
    
    /* Colores de texto con mejor contraste */
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.87);
    --color-text-muted: rgba(255, 255, 255, 0.6);
    --color-text-disabled: rgba(255, 255, 255, 0.38);
    
    /* Colores de acento con gradientes */
    --color-accent-blue: linear-gradient(135deg, #4a9eff 0%, #357abd 100%);
    --color-accent-green: linear-gradient(135deg, #00d4aa 0%, #00b896 100%);
    --color-accent-purple: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    --color-accent-orange: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    --color-accent-red: linear-gradient(135deg, #ff4a4a 0%, #e74c3c 100%);
    
    /* Bordes y transparencias */
    --color-border: rgba(255, 255, 255, 0.12);
    --color-border-hover: rgba(255, 255, 255, 0.2);
    --color-overlay: rgba(0, 0, 0, 0.6);
    
    /* Espaciado mejorado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1.25rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border radius más modernos */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;
    
    /* Velocidades de transición */
    --transition-fast: 0.15s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;
    --transition-slower: 0.8s;
    
    /* Sombras más sofisticadas */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(74, 158, 255, 0.3);
    --shadow-glow-green: 0 0 20px rgba(0, 212, 170, 0.3);
    
    /* Backdrop blur para glassmorphism */
    --backdrop-blur: blur(12px);
    --backdrop-blur-sm: blur(8px);
    --backdrop-blur-lg: blur(16px);
}

/* ===========================
       RESET Y ESTILOS BASE
    =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, 'Helvetica Neue', Inter, Arial, sans-serif;
    background: var(--color-bg-primary);
    color: var(--color-text-secondary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* Efecto de fondo animado */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 200, 255, 0.3) 0%, transparent 50%);
    animation: backgroundShift 20s ease-in-out infinite alternate;
    pointer-events: none;
    z-index: -1;
}

@keyframes backgroundShift {
    0% { transform: translateX(0) translateY(0) scale(1); }
    100% { transform: translateX(-20px) translateY(20px) scale(1.1); }
}

/* ===========================
       LAYOUT PRINCIPAL
    =========================== */
.app-container {
    display: grid;
    grid-template-columns: 320px 1fr;
    grid-template-rows: auto 1fr auto;
    grid-template-areas:
        "header header"
        "sidebar main"
        "footer footer";
    height: 100vh;
    overflow: hidden;
    backdrop-filter: var(--backdrop-blur);
    background: rgba(0, 0, 0, 0.1);
}

/* ===========================
       HEADER MODERNO
    =========================== */
header {
    grid-area: header;
    background: var(--color-bg-secondary);
    backdrop-filter: var(--backdrop-blur);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 10;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-blue), transparent);
    animation: shimmer 3s ease-in-out infinite;
}

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

.header-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
}

.header-title::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-accent-blue);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-normal);
}

.header-title:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.header-icon {
    width: 40px;
    height: 40px;
    background: var(--color-accent-blue);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--color-text-primary);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.header-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    transition: all var(--transition-slow);
    opacity: 0;
}

.header-icon:hover::before {
    opacity: 1;
    transform: rotate(45deg) translate(50%, 50%);
}

.header-nav {
    display: flex;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xs);
    backdrop-filter: var(--backdrop-blur);
}

.nav-btn {
    background: transparent;
    color: var(--color-text-secondary);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.nav-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-accent-blue);
    transition: left var(--transition-normal);
    z-index: -1;
}

.nav-btn:hover::before,
.nav-btn.active::before {
    left: 0;
}

.nav-btn:hover,
.nav-btn.active {
    color: var(--color-text-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ===========================
       SIDEBAR GLASSMORPHISM
    =========================== */
aside {
    grid-area: sidebar;
    background: var(--color-bg-secondary);
    backdrop-filter: var(--backdrop-blur-lg);
    border-right: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    overflow-y: auto;
    transition: transform var(--transition-slow);
    position: relative;
}

aside::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--color-accent-blue), transparent);
    opacity: 0.3;
}

aside.collapsed {
    transform: translateX(-100%);
}

.sidebar-section {
    margin-bottom: var(--spacing-xl);
}

.sidebar-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-xs);
}

.sidebar-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 1px;
    background: var(--color-accent-blue);
}

.sidebar-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.sidebar-item {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: var(--backdrop-blur);
}

.sidebar-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--color-accent-blue);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform var(--transition-normal);
}

.sidebar-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-primary);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.sidebar-item:hover::before {
    transform: scaleY(1);
}

.sidebar-item.active {
    background: var(--color-accent-blue);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
}

.sidebar-item.active::before {
    transform: scaleY(1);
}

.new-chat-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-accent-blue);
    color: var(--color-text-primary);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normal);
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-glow);
}

.new-chat-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.new-chat-btn:hover::before {
    left: 100%;
}

.new-chat-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2xl);
    background: linear-gradient(135deg, #3a8eef 0%, #2d7bcf 100%);
}

/* ===========================
       PANEL PRINCIPAL
    =========================== */
main {
    grid-area: main;
    padding: var(--spacing-xl);
    overflow-y: auto;
    position: relative;
    background: transparent;
}

.panel {
    display: none;
    animation: fadeInScale 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.panel.active {
    display: block;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ===========================
       CHAT PANEL MEJORADO
    =========================== */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 160px);
    max-width: 900px;
    margin: 0 auto;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    backdrop-filter: var(--backdrop-blur);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    position: relative;
}

.chat-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-blue), transparent);
    opacity: 0.5;
}

.messages-area {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl);
    background: transparent;
    scroll-behavior: smooth;
}

.messages-area::-webkit-scrollbar {
    width: 6px;
}

.messages-area::-webkit-scrollbar-track {
    background: transparent;
}

.messages-area::-webkit-scrollbar-thumb {
    background: var(--color-accent-blue);
    border-radius: var(--radius-full);
}

.message {
    display: flex;
    margin-bottom: var(--spacing-lg);
    animation: messageSlideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.message.user {
    justify-content: flex-end;
}

.message-content {
    max-width: 70%;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-xl);
    position: relative;
    backdrop-filter: var(--backdrop-blur);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
}

.message.user .message-content {
    background: var(--color-accent-blue);
    color: var(--color-text-primary);
    border-bottom-right-radius: var(--radius-sm);
    position: relative;
}

.message.user .message-content::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: -8px;
    width: 0;
    height: 0;
    border-left: 8px solid #4a9eff;
    border-top: 8px solid transparent;
}

.message.assistant .message-content {
    background: rgba(45, 45, 45, 0.8);
    color: var(--color-text-secondary);
    border-bottom-left-radius: var(--radius-sm);
    backdrop-filter: var(--backdrop-blur);
}

.message.assistant .message-content::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -8px;
    width: 0;
    height: 0;
    border-right: 8px solid rgba(45, 45, 45, 0.8);
    border-top: 8px solid transparent;
}

.message-time {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
    display: block;
    opacity: 0.7;
}

.typing-indicator {
    display: none;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(45, 45, 45, 0.8);
    border-radius: var(--radius-xl);
    max-width: 80px;
    border: 1px solid var(--color-border);
    backdrop-filter: var(--backdrop-blur);
}

.typing-indicator.active {
    display: block;
    animation: typingPulse 2s ease-in-out infinite;
}

@keyframes typingPulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
}

.typing-dots {
    display: flex;
    gap: 4px;
    align-items: center;
    justify-content: center;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    background: var(--color-accent-blue);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite ease-in-out both;
}

.typing-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0s;
}

@keyframes typingBounce {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1.2);
        opacity: 1;
    }
}

.input-area {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl);
    background: rgba(36, 36, 36, 0.8);
    border-top: 1px solid var(--color-border);
    backdrop-filter: var(--backdrop-blur);
}

#messageInput {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    resize: none;
    min-height: 50px;
    max-height: 150px;
    font-family: inherit;
    transition: all var(--transition-normal);
    backdrop-filter: var(--backdrop-blur);
}

#messageInput:focus {
    outline: none;
    border-color: var(--color-accent-blue);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

#sendBtn {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-accent-blue);
    color: var(--color-text-primary);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normal);
    min-width: 100px;
    position: relative;
    overflow: hidden;
}

#sendBtn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all var(--transition-normal);
}

#sendBtn:hover:not(:disabled)::before {
    width: 300px;
    height: 300px;
}

#sendBtn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

#sendBtn:disabled {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-disabled);
    cursor: not-allowed;
    transform: none;
}

.error-message {
    background: var(--color-accent-red);
    color: var(--color-text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    display: none;
    animation: errorSlideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.error-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: errorShimmer 2s ease-in-out infinite;
}

@keyframes errorSlideIn {
    from {
        opacity: 0;
        transform: translateX(-100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes errorShimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.error-message.active {
    display: block;
}

/* ===========================
       DASHBOARD MODERNO
    =========================== */
.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    backdrop-filter: var(--backdrop-blur);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-2xl);
    position: relative;
    overflow: hidden;
}

.dashboard-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-blue), var(--color-accent-green), transparent);
    opacity: 0.8;
}

.dashboard-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xl);
    position: relative;
    background: linear-gradient(135deg, var(--color-text-primary), var(--color-accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dashboard-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--color-accent-blue);
    border-radius: var(--radius-full);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.metric-card {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
    backdrop-filter: var(--backdrop-blur);
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-accent-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.metric-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-border-hover);
}

.metric-card:hover::before {
    transform: scaleX(1);
}

.metric-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.metric-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.metric-value.accent-blue {
    background: var(--color-accent-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-value.accent-green {
    background: var(--color-accent-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-change {
    font-size: 0.875rem;
    color: var(--color-accent-green);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.metric-change::before {
    content: '↗';
    font-size: 1rem;
}

.dashboard-section {
    background: rgba(255, 255, 255, 0.03);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-xl);
    backdrop-filter: var(--backdrop-blur);
    transition: all var(--transition-normal);
}

.dashboard-section:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-lg);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
}

.section-title::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--color-accent-blue);
    border-radius: var(--radius-full);
}

.history-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: rgba(0, 0, 0, 0.2);
}

.history-table th,
.history-table td {
    text-align: left;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.history-table th {
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: var(--backdrop-blur);
}

.history-table td {
    color: var(--color-text-secondary);
    transition: all var(--transition-normal);
}

.history-table tr {
    transition: all var(--transition-normal);
}

.history-table tr:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: scale(1.01);
}

.export-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-accent-green);
    color: var(--color-text-primary);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-normal);
    margin-top: var(--spacing-md);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-glow-green);
}

.export-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.export-btn:hover::before {
    left: 100%;
}

.export-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2xl);
    background: linear-gradient(135deg, #00c499 0%, #00a085 100%);
}

/* ===========================
       FOOTER MEJORADO
    =========================== */
footer {
    grid-area: footer;
    background: var(--color-bg-secondary);
    backdrop-filter: var(--backdrop-blur);
    padding: var(--spacing-md) var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-blue), transparent);
    opacity: 0.5;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent-green);
    border-radius: 50%;
    animation: statusPulse 2s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(0, 212, 170, 0.5);
}

@keyframes statusPulse {
    0%, 100% {
        opacity: 0.7;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

/* ===========================
       MENÚ HAMBURGUESA
    =========================== */
.menu-toggle {
    display: none;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: var(--spacing-sm);
    cursor: pointer;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    transition: all var(--transition-normal);
    backdrop-filter: var(--backdrop-blur);
}

.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

/* ===========================
       RESPONSIVE AVANZADO
    =========================== */
@media (max-width: 1024px) {
    .app-container {
        grid-template-columns: 280px 1fr;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .app-container {
        grid-template-columns: 1fr;
        grid-template-areas:
            "header"
            "main"
            "footer";
    }
    
    aside {
        position: fixed;
        top: 70px;
        left: 0;
        bottom: 60px;
        width: 320px;
        z-index: 100;
        transform: translateX(-100%);
        backdrop-filter: var(--backdrop-blur-lg);
    }
    
    aside.open {
        transform: translateX(0);
    }
    
    .menu-toggle {
        display: block;
    }
    
    .header-nav {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .nav-btn {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .dashboard-container {
        padding: var(--spacing-lg);
        margin: 0 var(--spacing-sm);
    }
    
    .dashboard-title {
        font-size: 2rem;
    }
    
    .message-content {
        max-width: 85%;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    footer {
        flex-direction: column;
        gap: var(--spacing-xs);
        text-align: center;
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .header-title {
        font-size: 1.25rem;
    }
    
    .dashboard-title {
        font-size: 1.75rem;
    }
    
    .metric-value {
        font-size: 2.5rem;
    }
    
    .chat-container {
        margin: 0 var(--spacing-xs);
        height: calc(100vh - 120px);
    }
    
    .messages-area {
        padding: var(--spacing-md);
    }
    
    .input-area {
        padding: var(--spacing-md);
    }
}

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

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px rgba(74, 158, 255, 0.5); }
    50% { box-shadow: 0 0 20px rgba(74, 158, 255, 0.8); }
}

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

/* Efectos de hover mejorados */
.interactive-element {
    transition: all var(--transition-normal);
    cursor: pointer;
}

.interactive-element:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Scrollbar personalizado mejorado */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-green));
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #3a8eef, #00c499);
    box-shadow: 0 0 10px rgba(74, 158, 255, 0.5);
}

/* ===========================
       UTILIDADES
    =========================== */
.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-up {
    animation: slideUp 0.6s ease-out;
}

.scale-in {
    animation: scaleIn 0.5s ease-out;
}

.blur {
    backdrop-filter: var(--backdrop-blur);
}

.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: var(--backdrop-blur);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(30px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from { 
        opacity: 0;
        transform: scale(0.9);
    }
    to { 
        opacity: 1;
        transform: scale(1);
    }
}