:root {
    --clr-primary: #6b21a8;
    --clr-secondary: #ec4899;
    --clr-accent: #06b6d4;
    --clr-dark: #0a0a0a;
    --clr-light: #ffffff;
    --clr-muted: #f3f4f6;
    --radius: 1rem;
    --max-w: 1320px;
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.25);
}

/* Reset & Typography */
html, body {
    height: 100%;
    overflow-x: hidden;
    font-family: 'Inter', sans-serif;
    background: var(--clr-dark);
    color: var(--clr-light);
    line-height: 1.7;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

.page-content {
    padding-top: 80px;
}

/* Utilities */
.container-inner {
    width: 90%;
    max-width: var(--max-w);
    margin-inline: auto;
}

.section {
    padding: 7rem 0;
    position: relative;
    overflow: hidden;
}

.section-title {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2.25rem, 5.5vw, 3.25rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 3.5rem;
    position: relative;
    letter-spacing: -0.02em;
}

    .section-title::after {
        content: "";
        display: block;
        width: 70px;
        height: 4px;
        background: linear-gradient(to right, var(--clr-primary), var(--clr-accent));
        margin: 0.75rem auto;
        border-radius: 2px;
    }

.btn-cta {
    background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-accent) 100%);
    border: none;
    border-radius: var(--radius);
    padding: 0.75rem 2rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--clr-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
    display: inline-block;
    text-align: center;
}

    .btn-cta:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
        background: linear-gradient(135deg, var(--clr-accent) 0%, var(--clr-primary) 100%);
    }

    .btn-cta::before {
        content: "";
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        transition: 0.5s;
        z-index: -1;
    }

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

/* Preloader */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--clr-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.6s ease;
}

    .preloader.hidden {
        opacity: 0;
        pointer-events: none;
    }

.spinner {
    width: 56px;
    height: 56px;
    border: 5px solid var(--clr-primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Navbar */
#navbar {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(12px);
    transition: var(--transition);
    z-index: 1000;
}

    #navbar.shadow-sm {
        box-shadow: var(--shadow-sm);
    }

.navbar-brand {
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 1.75rem;
    background: linear-gradient(45deg, var(--clr-primary), var(--clr-accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.navbar-nav {
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    font-size: 1rem;
    position: relative;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

    .nav-link:hover,
    .nav-link.active {
        color: var(--clr-light) !important;
    }

    .nav-link::after {
        content: "";
        position: absolute;
        width: 0;
        height: 2px;
        bottom: 0;
        left: 1rem;
        background: linear-gradient(to right, var(--clr-primary), var(--clr-accent));
        transition: width 0.3s ease;
    }

    .nav-link:hover::after,
    .nav-link.active::after {
        width: calc(100% - 2rem);
    }

.navbar-collapse {
    /* Removidas transições desnecessárias para desktop */
}

    .navbar-collapse.show {
        /* Garantir que o menu esteja visível quando aberto */
        display: block;
    }

@media (max-width: 991px) {
    .navbar-collapse {
        background: var(--clr-dark);
        padding: 1rem;
        border-radius: var(--radius);
        box-shadow: var(--shadow-sm);
        margin-top: 0.5rem;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        transform: translateY(-10px);
        opacity: 0;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    }

        .navbar-collapse.show {
            transform: translateY(0);
            opacity: 1;
        }

    .navbar-nav {
        gap: 0.75rem;
    }

    .nav-link {
        padding: 0.75rem 1rem;
        font-size: 1.1rem;
    }

    .btn-cta {
        margin: 1rem auto;
        width: fit-content;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.5rem;
    }

    .nav-link {
        font-size: 1rem;
    }

    .navbar-toggler {
        padding: 0.25rem 0.5rem;
    }
}

/* Section Themes */
.section-light {
    background: var(--clr-muted);
    color: #111827;
}

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

.section-gradient {
    background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-accent) 100%);
    color: var(--clr-light);
}

/* Animations */
.animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

    .animate.visible {
        opacity: 1;
        transform: translateY(0);
    }

.no-js .animate {
    opacity: 1;
    transform: translateY(0);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius);
}

/* Social Links */
.social-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.social-icon {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

    .social-icon:hover {
        color: var(--clr-accent);
        transform: translateY(-3px);
    }

/* Footer */
.site-footer {
    background: var(--clr-dark);
}