/* CSS Base Moderno para AEG Industrial */

/* Variables CSS profesionales */
:root {
    --color-primary: #104693;
    --color-secondary: #2d3748;
    --color-gray: #4a5568;
    --color-light-gray: #f7fafc;
    --color-white: #ffffff;
    --color-whatsapp: #25d366;
    
    /* Sin gradientes - color sólido */
    --gradient-primary: #104693;
    --gradient-secondary: #104693;
    --gradient-light: #f8f9fa;
    
    /* Sombras modernas */
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.2);
    
    /* Transiciones suaves */
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Bordos redondeados */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
}

/* Reset moderno y optimizado */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

/* Configuración base mejorada */
html {
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: hidden;
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-secondary);
    background-color: var(--color-white);
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

/* Tipografía profesional */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-secondary);
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.8rem;
    font-weight: 800;
}

h3 {
    font-size: 2.2rem;
    font-weight: 700;
}

h4 {
    font-size: 1.8rem;
    font-weight: 600;
}

h5 {
    font-size: 1.4rem;
    font-weight: 600;
}

h6 {
    font-size: 1.2rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    line-height: 1.7;
    color: var(--color-gray);
}

/* Enlaces modernos */
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-normal);
}

a:hover {
    color: #0d3b7a;
    text-decoration: none;
}

a:focus {
    outline: 3px solid rgba(16, 70, 147, 0.2);
    outline-offset: 2px;
}

/* Listas elegantes */
ul, ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* Imágenes responsivas */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Botones espectaculares */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-xl);
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.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: var(--transition-slow);
    z-index: -1;
}

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

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

.btn-primary:hover {
    background: #0d3b7a;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 3px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-whatsapp {
    background: linear-gradient(135deg, var(--color-whatsapp) 0%, #1da851 100%);
    color: white;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(37, 211, 102, 0.4);
    color: white;
}

/* Contenedores profesionales */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.container-sm {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
}

.container-lg {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Cards modernas */
.card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.card-highlight {
    background: var(--gradient-primary);
    color: white;
}

.card-highlight h1,
.card-highlight h2,
.card-highlight h3,
.card-highlight h4,
.card-highlight h5,
.card-highlight h6,
.card-highlight p {
    color: white;
}

/* Grid responsivo moderno */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Espaciado consistente */
.section {
    padding: 100px 0;
}

.section-sm {
    padding: 60px 0;
}

.section-lg {
    padding: 140px 0;
}

/* Utilidades de texto */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-primary {
    color: var(--color-primary);
}

.text-secondary {
    color: var(--color-secondary);
}

.text-gray {
    color: var(--color-gray);
}

.text-white {
    color: white;
}

.font-bold {
    font-weight: 700;
}

.font-black {
    font-weight: 900;
}

/* Utilidades de espaciado */
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-5 { padding: 3rem; }

/* Animaciones suaves */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0% { 
        box-shadow: 0 0 0 0 rgba(16, 70, 147, 0.4); 
    }
    50% { 
        box-shadow: 0 0 0 15px rgba(16, 70, 147, 0.1); 
    }
    100% { 
        box-shadow: 0 0 0 0 rgba(16, 70, 147, 0.1); 
    }
}

/* Clases de animación */
.animate-fadeInUp {
    animation: fadeInUp 0.8s ease-out;
}

.animate-fadeInDown {
    animation: fadeInDown 0.8s ease-out;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.8s ease-out;
}

.animate-fadeInRight {
    animation: fadeInRight 0.8s ease-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* Formularios modernos */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-secondary);
}

.form-input {
    width: 100%;
    padding: 16px 20px;
    border: 3px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: 'Montserrat', sans-serif;
    transition: var(--transition-normal);
    background: #f8f9fa;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: white;
    box-shadow: 0 0 0 5px rgba(16, 70, 147, 0.1);
}

.form-input::placeholder {
    color: var(--color-gray);
    font-weight: 500;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Estados de loading y disabled */
.loading {
    position: relative;
    color: transparent !important;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.disabled {
    opacity: 0.6;
    cursor: not-allowed !important;
    pointer-events: none;
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #c53030;
}

/* Responsive moderno */
@media (max-width: 1200px) {
    .container {
        padding: 0 1.5rem;
    }
    
    h1 { font-size: 3rem; }
    h2 { font-size: 2.4rem; }
    h3 { font-size: 2rem; }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.8rem; }
    h4 { font-size: 1.5rem; }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-lg {
        padding: 80px 0;
    }
    
    .card {
        padding: 2rem;
    }
    
    .grid {
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
    
    .card {
        padding: 1.5rem;
    }
}

/* Efectos de hover mejorados */
.hover-lift {
    transition: var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-5px);
}

.hover-glow {
    transition: var(--transition-normal);
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(16, 70, 147, 0.3);
}

/* Overlay moderno */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal {
    background: white;
    border-radius: var(--radius-lg);
    padding: 3rem;
    max-width: 500px;
    width: 90%;
    position: relative;
    box-shadow: var(--shadow-xl);
    animation: fadeInUp 0.3s ease-out;
}

/* Estados de éxito y error */
.success {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    color: white;
}

.error {
    background: linear-gradient(135deg, #f56565 0%, #e53e3e 100%);
    color: white;
}

.warning {
    background: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%);
    color: white;
}

.info {
    background: linear-gradient(135deg, #4299e1 0%, #3182ce 100%);
    color: white;
}