:root {
    --color-primary: #38bdf8;
    --color-primary-dark: #0091bc;
    --color-secondary: #0f172a;
    --color-dark: #000;
    --color-light: #fff;
    --color-gray: #94a3b8;
    --color-accent: #f43f5e;

    --breakpoint-mobile: 600px;
    --breakpoint-tablet: 992px;
    --breakpoint-desktop: 1200px;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    --font-size-sm: 0.9rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
    --font-size-xxxl: 2.5rem;

    --glow-primary: 0 0 8px var(--color-primary), 0 0 16px var(--color-primary);
    --glow-intense: 0 0 12px var(--color-primary), 0 0 24px var(--color-primary);
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--color-dark);
    color: var(--color-light);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    padding-top: 80px;
    /* Para el navbar fijo */
}

/* Efecto de partículas de fondo */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: var(--color-primary);
    opacity: 0.5;
    animation: float 15s infinite linear;
}

.particle:nth-child(1) {
    width: 6px;
    height: 6px;
    top: 20%;
    left: 10%;
    animation-duration: 20s;
}

.particle:nth-child(2) {
    width: 10px;
    height: 10px;
    top: 60%;
    left: 70%;
    animation-duration: 25s;
    animation-delay: 2s;
}

.particle:nth-child(3) {
    width: 8px;
    height: 8px;
    top: 70%;
    left: 20%;
    animation-duration: 15s;
    animation-delay: 1s;
}

.particle:nth-child(4) {
    width: 12px;
    height: 12px;
    top: 40%;
    left: 80%;
    animation-duration: 30s;
    animation-delay: 3s;
}

@keyframes float {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(20px, 40px) rotate(90deg);
    }

    50% {
        transform: translate(40px, 20px) rotate(180deg);
    }

    75% {
        transform: translate(20px, -20px) rotate(270deg);
    }

    100% {
        transform: translate(0, 0) rotate(360deg);
    }
}

/* Contact Section - Mejorada */
.contact-section {
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    z-index: 2;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-container {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin: 0 auto;
}

@media (max-width: 992px) {
    .contact-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* Form Styling - Reorganizado y mejorado */
.form-container {
    background: rgba(15, 23, 42, 0.8);
    border-radius: 16px;
    padding: var(--spacing-xl);
    border: 1px solid var(--color-primary);
    backdrop-filter: blur(10px);
    box-shadow: var(--glow-primary);
    transition: var(--transition);
    height: fit-content;
}

.form-container:hover {
    box-shadow: var(--glow-intense);
    transform: translateY(-5px);
}

.form-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.form-title {
    font-size: var(--font-size-xxxl);
    color: var(--color-light);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    text-shadow: var(--glow-primary);
    letter-spacing: 1px;
}

.form-subtitle {
    color: var(--color-gray);
    font-size: var(--font-size-lg);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

@media (max-width: 600px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    display: block;
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-light);
    margin-bottom: var(--spacing-xs);
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.4);
    border-radius: 8px;
    color: var(--color-primary);
    font-size: var(--font-size-md);
    transition: var(--transition);
    font-family: 'Montserrat', sans-serif;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
    background: rgba(255, 255, 255, 0.12);
}

.form-textarea {
    min-height: 150px;
    resize: none;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2338bdf8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
}

::placeholder {
    color: var(--color-gray);
    opacity: 0.7;
}

.form-button {
    background: var(--color-primary);
    color: var(--color-dark);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 30px;
    font-weight: 700;
    font-size: var(--font-size-md);
    cursor: pointer;
    transition: var(--transition);
    display: block;
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: var(--spacing-md);
}

.form-button:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--glow-intense);
}

/* FAQ Section - Mejorada */
.faq-container {
    background: rgba(15, 23, 42, 0.8);
    border-radius: 16px;
    padding: var(--spacing-xl);
    border: 1px solid var(--color-primary);
    backdrop-filter: blur(10px);
    box-shadow: var(--glow-primary);
    transition: var(--transition);
    height: fit-content;
}

.faq-container:hover {
    box-shadow: var(--glow-intense);
}

.faq-title {
    font-size: var(--font-size-xxxl);
    color: var(--color-light);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    text-shadow: var(--glow-primary);
    letter-spacing: 1px;
}

/* Categorías FAQ */
.faq-category {
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-category:hover {
    border-color: var(--color-primary);
}

.faq-category-header {
    padding: var(--spacing-md);
    background: rgba(56, 189, 248, 0.1);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-category-header:hover {
    background: rgba(56, 189, 248, 0.15);
}

.faq-category-title {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.faq-category-toggle {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    font-weight: 700;
    transition: var(--transition);
}

.faq-category-content {
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-slow);
}

.faq-category.active .faq-category-content {
    max-height: 2000px;
}

/* Items FAQ Individuales */
.faq-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid rgba(56, 189, 248, 0.2);
    transition: var(--transition);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item:hover {
    background: rgba(56, 189, 248, 0.05);
}

.faq-question {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--color-light);
}

.faq-question::after {
    content: '+';
    font-size: var(--font-size-xl);
    transition: var(--transition);
}

.faq-item.active .faq-question::after {
    content: '-';
}

.faq-answer {
    color: var(--color-light);
    padding-top: var(--spacing-sm);
    display: none;
    font-size: var(--font-size-md);
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    display: block;
    animation: fadeIn 0.5s ease;
}

/* Modal Styling */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 10000;
    animation: fadeIn 0.3s ease-out;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: rgba(15, 23, 42, 0.95);
    padding: var(--spacing-xl);
    border-radius: 16px;
    text-align: center;
    border: 2px solid var(--color-primary);
    box-shadow: var(--glow-intense);
    backdrop-filter: blur(10px);
    max-width: 500px;
    width: 90%;
    animation: scaleUp 0.3s ease-out;
}

.modal-content span {
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
    text-shadow: 0 0 10px var(--color-primary);
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes scaleUp {
    from {
        transform: scale(0.9);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* RESPONSIVIDAD - Breakpoints */
/* Tablet (≤ 992px) */
@media (max-width: 992px) {
    .contact-container {
        grid-template-columns: 1fr;
    }

    .faq-title {
        font-size: var(--font-size-xxl);
    }
}

/* Móvil (≤ 600px) */
@media (max-width: 600px) {
    .contact-section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .form-container, .faq-container {
        padding: var(--spacing-lg);
    }

    .form-title, .faq-title {
        font-size: var(--font-size-xxl);
    }

    .faq-category-title {
        font-size: var(--font-size-lg);
    }

    .faq-question {
        font-size: var(--font-size-md);
    }

    .faq-category-header {
        padding: var(--spacing-sm);
    }

    .faq-item {
        padding: var(--spacing-sm);
    }
}

/* Móvil Pequeño (≤ 400px) */
@media (max-width: 400px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
        --spacing-md: 1rem;
        --spacing-sm: 0.75rem;
        --spacing-xs: 0.5rem;
    }

    .form-container, .faq-container {
        padding: var(--spacing-md);
    }

    .faq-category-title {
        font-size: var(--font-size-md);
    }

    .form-button {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
}