/* ===================================
   VARIÁVEIS CSS - PACSYS
   =================================== */
:root {
    /* Cores principais - PACSYS */
    --color-primary: rgb(0, 176, 239);      /* Azul claro */
    --color-secondary: rgb(0, 58, 147);     /* Azul escuro */
    --color-accent: rgb(0, 140, 200);       /* Azul médio */
    
    /* Tons de cinza */
    --color-white: #ffffff;
    --color-light: #f8f9fa;
    --color-gray-100: #e9ecef;
    --color-gray-200: #dee2e6;
    --color-gray-300: #ced4da;
    --color-gray-400: #adb5bd;
    --color-gray-500: #6c757d;
    --color-dark: #212529;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
    --gradient-overlay: linear-gradient(135deg, rgba(0, 58, 147, 0.95), rgba(0, 176, 239, 0.85));
    
    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    
    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.15);
    
    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Container */
    --container-max-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

.highlight {
    color: var(--color-primary);
    position: relative;
}

.section__tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(0, 176, 239, 0.1), rgba(0, 58, 147, 0.1));
    color: var(--color-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

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

.section__title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.section__description {
    font-size: 1.125rem;
    color: var(--color-gray-500);
    max-width: 700px;
    margin: 0 auto;
}

/* ===================================
   BOTÕES
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

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

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

.btn--outline {
    background: transparent;
    color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.btn--outline:hover {
    background: var(--color-secondary);
    color: var(--color-white);
}

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

/* ===================================
   HEADER & NAVEGAÇÃO
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-base);
}

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

.nav__data {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.nav__logo .logo {
    height: 50px;
    width: auto;
}

.nav__toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--color-secondary);
    cursor: pointer;
}

.nav__menu {
    display: flex;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav__link {
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__link--cta {
    padding: 0.5rem 1.5rem;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
}

.nav__link--cta::after {
    display: none;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    padding: calc(var(--header-height) + var(--spacing-xxl)) 0 var(--spacing-xxl);
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 176, 239, 0.05), transparent);
    border-radius: 50%;
}

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

.hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-secondary);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.hero__description {
    font-size: 1.25rem;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-lg);
}

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

.hero__image {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.hero__card {
    padding: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition-base);
}

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

.hero__card i {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.hero__card h3 {
    font-size: 1rem;
    color: var(--color-secondary);
}

.hero__card:nth-child(3) {
    grid-column: span 2;
}

/* ===================================
   PILARES
   =================================== */
.pilares {
    padding: var(--spacing-xxl) 0;
    background: var(--color-white);
}

.pilares__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.pilar__card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    position: relative;
}

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

.pilar__card--featured {
    background: linear-gradient(135deg, rgba(0, 58, 147, 0.02), rgba(0, 176, 239, 0.02));
    border-color: var(--color-primary);
    border-width: 3px;
}

.pilar__badge {
    position: absolute;
    top: -15px;
    right: 30px;
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.pilar__icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.pilar__icon i {
    font-size: 2.5rem;
    color: var(--color-white);
}

.pilar__title {
    font-size: 1.75rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.pilar__subtitle {
    font-size: 1rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.pilar__description {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.pilar__features {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.pilar__features li {
    padding: 0.75rem 0;
    color: var(--color-gray-500);
    border-bottom: 1px solid var(--color-gray-200);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.pilar__features li:last-child {
    border-bottom: none;
}

.pilar__features i {
    color: var(--color-primary);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.pilar__benefits {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-md);
}

.benefit__tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(0, 176, 239, 0.1), rgba(0, 58, 147, 0.1));
    color: var(--color-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.pilar__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-gray-200);
}

.stat {
    text-align: center;
}

.stat__value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
}

.stat__label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-top: 0.25rem;
}

/* ===================================
   BENEFÍCIOS
   =================================== */
.beneficios {
    padding: var(--spacing-xxl) 0;
    background: var(--color-light);
}

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

.beneficio__card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

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

.beneficio__icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.beneficio__icon i {
    font-size: 2rem;
    color: var(--color-white);
}

.beneficio__card h3 {
    font-size: 1.25rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.beneficio__card p {
    color: var(--color-gray-500);
}

/* ===================================
   SOBRE
   =================================== */
.sobre {
    padding: var(--spacing-xxl) 0;
    background: var(--color-white);
}

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

.sobre__text {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.sobre__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat__item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--color-light);
    border-radius: var(--radius-lg);
}

.stat__number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.stat__label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-gray-500);
    font-weight: 600;
}

.sobre__image {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.image__card {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(0, 58, 147, 0.05), rgba(0, 176, 239, 0.05));
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.image__card:hover {
    transform: translateY(-5px);
    background: var(--gradient-primary);
}

.image__card:hover i,
.image__card:hover h4 {
    color: var(--color-white);
}

.image__card i {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-base);
}

.image__card h4 {
    font-size: 1.125rem;
    color: var(--color-secondary);
    transition: color var(--transition-base);
}

/* ===================================
   CONTATO
   =================================== */
.contato {
    padding: var(--spacing-xxl) 0;
    background: var(--color-light);
}

.contato__grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
}

.info__card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-base);
}

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

.info__icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info__icon i {
    font-size: 1.25rem;
    color: var(--color-white);
}

.info__content h4 {
    font-size: 1rem;
    color: var(--color-secondary);
    margin-bottom: 0.5rem;
}

.info__content a,
.info__content span,
.info__content p {
    color: var(--color-gray-500);
    text-decoration: none;
    display: block;
    transition: color var(--transition-fast);
}

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

.whatsapp__link {
    display: inline-flex !important;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding: 0.5rem 1rem;
    background: #25D366;
    color: var(--color-white) !important;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-base);
}

.whatsapp__link:hover {
    background: #128C7E;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.social__link {
    width: 50px;
    height: 50px;
    background: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    text-decoration: none;
    transition: all var(--transition-base);
}

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

/* Formulário */
.contato__form {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.form__group {
    display: flex;
    flex-direction: column;
}

.form__group--full {
    grid-column: span 2;
}

.form__group label {
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form__group input,
.form__group select,
.form__group textarea {
    padding: 0.875rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 176, 239, 0.1);
}

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

.form__status {
    grid-column: span 2;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 600;
    display: none;
}

.form__status.success {
    display: block;
    background: #d4edda;
    color: #155724;
}

.form__status.error {
    display: block;
    background: #f8d7da;
    color: #721c24;
}

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

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

.footer__logo {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.footer__description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

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

.footer__social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    text-decoration: none;
    transition: all var(--transition-base);
}

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

.footer__col h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.footer__links {
    list-style: none;
}

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

.footer__links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer__contact {
    list-style: none;
}

.footer__contact li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer__contact i {
    color: var(--color-primary);
}

.footer__contact a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer__bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ===================================
   BOTÃO VOLTAR AO TOPO
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    z-index: 999;
}

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

.back-to-top.show {
    display: flex;
}

/* ===================================
   ANIMAÇÕES
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ===================================
   RESPONSIVIDADE
   =================================== */

/* Tablets */
@media (max-width: 1024px) {
    .section__title {
        font-size: 2rem;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .hero__container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .sobre__grid {
        grid-template-columns: 1fr;
    }
    
    .contato__grid {
        grid-template-columns: 1fr;
    }
    
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
        --spacing-xxl: 4rem;
    }
    
    .nav__toggle {
        display: block;
    }
    
    .nav__menu {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        background: var(--color-white);
        box-shadow: var(--shadow-lg);
        transition: left var(--transition-base);
        padding: var(--spacing-md);
    }
    
    .nav__menu.show {
        left: 0;
    }
    
    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }
    
    .nav__list li {
        width: 100%;
        border-bottom: 1px solid var(--color-gray-200);
    }
    
    .nav__link {
        display: block;
        padding: var(--spacing-sm) 0;
    }
    
    .section__title {
        font-size: 1.75rem;
    }
    
    .section__description {
        font-size: 1rem;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__description {
        font-size: 1rem;
    }
    
    .hero__buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .pilares__grid {
        grid-template-columns: 1fr;
    }
    
    .beneficios__grid {
        grid-template-columns: 1fr;
    }
    
    .sobre__stats {
        grid-template-columns: 1fr;
    }
    
    .sobre__image {
        grid-template-columns: 1fr;
    }
    
    .contato__form {
        grid-template-columns: 1fr;
    }
    
    .form__group--full {
        grid-column: span 1;
    }
    
    .footer__grid {
        grid-template-columns: 1fr;
    }
    
    .pilar__stats {
        grid-template-columns: 1fr;
    }
}

/* Small mobile */
@media (max-width: 480px) {
    :root {
        --font-size-base: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav__logo .logo {
        height: 40px;
    }
    
    .hero__title {
        font-size: 1.75rem;
    }
    
    .section__title {
        font-size: 1.5rem;
    }
}