/* ===== ROOT VARIABLES ===== */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #10b981;
    --secondary-dark: #059669;
    --secondary-light: #34d399;
    
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-light: #f9fafb;
    --bg-gray: #f3f4f6;
    --border-color: #e5e7eb;
    
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(37, 99, 235, 0.9) 0%, rgba(16, 185, 129, 0.9) 100%);
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Shadows */
    --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);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Z-index */
    --z-fixed: 100;
    --z-modal: 200;
    --z-tooltip: 300;
    
    /* Container */
    --container-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-color);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-base);
}

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

ul {
    list-style: none;
}

button {
    border: none;
    outline: none;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-base);
}

/* ===== UTILITIES ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section__subtitle {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
}

.section__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

/* ===== BUTTONS ===== */
.button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

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

.button--secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

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

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

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4.5rem;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.nav__logo i {
    font-size: var(--font-size-2xl);
}

.nav__list {
    display: flex;
    gap: var(--spacing-lg);
}

.nav__link {
    font-weight: 500;
    color: var(--text-color);
    position: relative;
    padding: 0.5rem 0;
}

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

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

.nav__toggle,
.nav__close {
    display: none;
    font-size: var(--font-size-2xl);
    cursor: pointer;
}

/* ===== HOME SECTION ===== */
.home {
    padding-top: 6rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f0f9ff 0%, #ecfdf5 100%);
}

.home__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.home__data {
    animation: fadeInUp 1s ease;
}

.home__title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.home__title-highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.home__description {
    font-size: var(--font-size-lg);
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.home__buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.home__img {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease;
}

.home__blob {
    width: 400px;
    height: 400px;
    background: var(--gradient-primary);
    border-radius: 50% 40% 60% 40%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: blobAnimation 8s infinite;
    box-shadow: var(--shadow-xl);
}

.home__blob i {
    font-size: 150px;
    color: white;
}

@keyframes blobAnimation {
    0%, 100% { border-radius: 50% 40% 60% 40%; }
    25% { border-radius: 40% 60% 40% 50%; }
    50% { border-radius: 60% 40% 50% 40%; }
    75% { border-radius: 40% 50% 40% 60%; }
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--bg-color);
}

.about__content {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about__img {
    position: relative;
}

.about__img-overlay {
    width: 350px;
    height: 400px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
}

.about__img-overlay i {
    font-size: 120px;
    color: white;
}

.about__name {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.about__description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.about__info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.about__info-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
}

.about__info-item i {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
}

.about__info-item h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.about__info-item p {
    font-size: var(--font-size-sm);
    color: var(--text-light);
}

/* ===== SERVICES SECTION ===== */
.services {
    background: var(--bg-light);
}

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

.service__card {
    background: var(--bg-color);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    border: 2px solid transparent;
}

.service__card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.service__card--featured {
    background: var(--gradient-primary);
    color: white;
}

.service__card--featured .service__icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.service__card--featured .service__title,
.service__card--featured .service__description,
.service__card--featured .service__list {
    color: white;
}

.service__badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--secondary-color);
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    box-shadow: var(--shadow-md);
}

.service__icon {
    width: 70px;
    height: 70px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.service__icon i {
    font-size: var(--font-size-3xl);
    color: var(--primary-color);
}

.service__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.service__description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.service__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.service__list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-light);
}

.service__card--featured .service__list li {
    color: rgba(255, 255, 255, 0.9);
}

.service__list i {
    color: var(--secondary-color);
    font-size: var(--font-size-sm);
}

.service__card--featured .service__list i {
    color: white;
}

/* ===== BENEFITS SECTION ===== */
.benefits {
    background: var(--bg-color);
}

.benefits__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.benefit__card {
    text-align: center;
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    background: var(--bg-light);
    transition: all var(--transition-base);
}

.benefit__card:hover {
    background: var(--bg-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.benefit__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.benefit__icon i {
    font-size: var(--font-size-3xl);
    color: white;
}

.benefit__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.benefit__description {
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--bg-light);
}

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

.contact__info {
    background: var(--gradient-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    color: white;
    box-shadow: var(--shadow-xl);
}

.contact__info-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.contact__info-description {
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact__detail {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact__detail-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact__detail-icon i {
    font-size: var(--font-size-xl);
}

.contact__detail-info h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact__detail-info p,
.contact__detail-info a {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.contact__detail-info a:hover {
    text-decoration: underline;
}

.contact__social {
    display: flex;
    gap: var(--spacing-sm);
}

.contact__social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

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

.contact__social-link i {
    font-size: var(--font-size-xl);
}

.contact__form-container {
    background: var(--bg-color);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.contact__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact__form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.contact__form-label {
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--text-color);
}

.contact__form-input {
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: all var(--transition-base);
}

.contact__form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.contact__form-message {
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    text-align: center;
    display: none;
}

.contact__form-message.success {
    display: block;
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.contact__form-message.error {
    display: block;
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--text-color);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer__description {
    opacity: 0.8;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.footer__subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer__link {
    opacity: 0.8;
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
}

.footer__link:hover {
    opacity: 1;
    padding-left: var(--spacing-xs);
    color: var(--primary-light);
}

.footer__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__info li {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.footer__info i {
    margin-top: 0.25rem;
    color: var(--primary-light);
}

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

.footer__social {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.footer__social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

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

.footer__social-link i {
    font-size: var(--font-size-xl);
}

.footer__bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer__copy {
    opacity: 0.7;
    font-size: var(--font-size-sm);
}

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

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

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

.scroll-top i {
    font-size: var(--font-size-xl);
}

/* ===== WHATSAPP FLOATING BUTTON ===== */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    z-index: var(--z-fixed);
    animation: pulse 2s infinite;
}

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

.whatsapp-float i {
    font-size: var(--font-size-3xl);
}

@keyframes pulse {
    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);
    }
}

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

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

.fade-in {
    animation: fadeInUp 0.6s ease;
}

/* ===== RESPONSIVE DESIGN ===== */
@media screen and (max-width: 1024px) {
    .home__container,
    .about__content,
    .contact__content {
        grid-template-columns: 1fr;
    }
    
    .home__img {
        order: -1;
    }
    
    .home__blob {
        width: 300px;
        height: 300px;
    }
    
    .home__blob i {
        font-size: 100px;
    }
    
    .about__img-overlay {
        width: 100%;
        max-width: 350px;
        margin: 0 auto;
    }
    
    .footer__content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    :root {
        --font-size-5xl: 2.25rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
    }
    
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: white;
        box-shadow: var(--shadow-xl);
        padding: var(--spacing-xl);
        transition: right var(--transition-base);
    }
    
    .nav__menu.show-menu {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav__toggle,
    .nav__close {
        display: block;
    }
    
    .nav__close {
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
    }
    
    .home {
        padding-top: 5rem;
        min-height: auto;
    }
    
    .home__buttons {
        flex-direction: column;
    }
    
    .button {
        width: 100%;
        justify-content: center;
    }
    
    .services__content,
    .benefits__content {
        grid-template-columns: 1fr;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
    }
    
    .whatsapp-float {
        bottom: 5rem;
        width: 55px;
        height: 55px;
    }
    
    .scroll-top {
        bottom: 5rem;
        width: 45px;
        height: 45px;
    }
}

@media screen and (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .home__blob {
        width: 250px;
        height: 250px;
    }
    
    .home__blob i {
        font-size: 80px;
    }
    
    .about__img-overlay {
        height: 350px;
    }
    
    .about__img-overlay i {
        font-size: 100px;
    }
    
    .contact__info,
    .contact__form-container {
        padding: var(--spacing-md);
    }
}