/* ===== VARIABLES ===== */
:root {
    /* Colors */
    --primary-color: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --secondary-color: #10B981;
    --accent-color: #F59E0B;
    
    --text-dark: #1F2937;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    
    --bg-white: #FFFFFF;
    --bg-light: #F9FAFB;
    --bg-gray: #F3F4F6;
    
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    
    /* Spacing */
    --header-height: 4.5rem;
    --container-width: 1200px;
    --section-padding: 5rem 0;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

button {
    border: none;
    outline: none;
    cursor: pointer;
    font-family: inherit;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: var(--section-padding);
}

.section-bg {
    background-color: var(--bg-light);
}

.grid {
    display: grid;
    gap: 2rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== BUTTONS ===== */
.button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.button-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.button-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.button-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.button-secondary:hover {
    background: var(--primary-color);
    color: white;
}

.button-white {
    background: white;
    color: var(--primary-color);
}

.button-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-dark);
}

.logo-icon {
    font-size: 1.75rem;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav__link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-gray);
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

.nav__link:hover,
.nav__link.active-link {
    color: var(--primary-color);
}

.nav__link:hover::after,
.nav__link.active-link::after {
    width: 100%;
}

.nav__cta {
    padding: 0.5rem 1.25rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white !important;
    border-radius: 0.5rem;
}

.nav__cta::after {
    display: none;
}

.nav__cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nav__toggle,
.nav__close {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
    padding-top: calc(var(--header-height) + 2rem);
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
}

.hero__container {
    grid-template-columns: repeat(2, 1fr);
    align-items: center;
    gap: 3rem;
}

.hero__subtitle {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.hero__title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero__description {
    font-size: 1.125rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero__buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.hero__image {
    position: relative;
}

.hero__blob {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    z-index: -1;
    opacity: 0.6;
    animation: blob-animation 8s ease-in-out infinite;
}

@keyframes blob-animation {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.1); }
}

.hero__img {
    border-radius: 1rem;
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 1;
}

/* ===== SECTION HEADERS ===== */
.section__header {
    text-align: center;
    margin-bottom: 3rem;
}

.section__subtitle {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section__title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section__description {
    font-size: 1.125rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== SERVICES SECTION ===== */
.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service__card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    border: 2px solid transparent;
}

.service__card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.service__card--featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(255, 255, 255, 1) 100%);
}

.service__badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 0.375rem 1rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.service__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service__title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.service__description {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service__features {
    list-style: none;
}

.service__features li {
    padding: 0.5rem 0;
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* ===== PROCESS SECTION ===== */
.process__timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.process__timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-light);
}

.timeline__item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.timeline__number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
    z-index: 1;
}

.timeline__content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.timeline__content p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.testimonial__card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.testimonial__card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.testimonial__rating {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial__text {
    color: var(--text-gray);
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.testimonial__author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial__author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial__author h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.testimonial__author p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ===== FAQ SECTION ===== */
.faq__container {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item {
    background: white;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq__question {
    width: 100%;
    padding: 1.5rem;
    background: white;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq__question:hover {
    background: var(--bg-light);
}

.faq__icon {
    flex-shrink: 0;
    transition: transform var(--transition-normal);
}

.faq__item.active .faq__icon {
    transform: rotate(180deg);
}

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

.faq__item.active .faq__answer {
    max-height: 500px;
}

.faq__answer p {
    padding: 0 1.5rem 1.5rem 1.5rem;
    color: var(--text-gray);
    line-height: 1.8;
}

/* ===== CTA SECTION ===== */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.cta__content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta__title {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1rem;
}

.cta__description {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* ===== CONTACT SECTION ===== */
.contact__container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.contact__info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.contact__card {
    background: white;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all var(--transition-normal);
}

.contact__card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.contact__icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.contact__card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.contact__card p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.contact__form {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__group input,
.form__group select,
.form__group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color var(--transition-fast);
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

/* ===== FOOTER ===== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer__container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: white;
    margin-bottom: 1rem;
}

.footer__description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.footer__social {
    display: flex;
    gap: 1rem;
}

.footer__social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.footer__social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer__title {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: white;
}

.footer__links ul li {
    margin-bottom: 0.75rem;
}

.footer__links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer__links a:hover {
    color: var(--primary-light);
}

.footer__bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer__bottom-links {
    display: flex;
    gap: 2rem;
}

.footer__bottom-links a:hover {
    color: var(--primary-light);
}

/* ===== SCROLL TO TOP ===== */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
}

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

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    z-index: 999;
    animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

@keyframes pulse-whatsapp {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
}

/* ===== RESPONSIVE ===== */
@media screen and (max-width: 968px) {
    :root {
        --header-height: 3.5rem;
        --section-padding: 3rem 0;
    }

    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: white;
        padding: 6rem 2rem 2rem;
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-normal);
    }

    .nav__menu.show-menu {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 2rem;
    }

    .nav__toggle,
    .nav__close {
        display: block;
    }

    .nav__close {
        position: absolute;
        top: 1rem;
        right: 1.5rem;
    }

    .hero__container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero__title {
        font-size: 2.5rem;
    }

    .hero__image {
        order: -1;
    }

    .section__title {
        font-size: 2rem;
    }

    .contact__container {
        grid-template-columns: 1fr;
    }

    .contact__info {
        grid-template-columns: 1fr;
    }

    .footer__container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer__bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media screen and (max-width: 576px) {
    .hero__title {
        font-size: 2rem;
    }

    .hero__stats {
        grid-template-columns: 1fr;
    }

    .services__grid,
    .testimonials__grid {
        grid-template-columns: 1fr;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .button {
        width: 100%;
        justify-content: center;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
    }

    .scroll-top {
        width: 45px;
        height: 45px;
    }
}