.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1001;
    padding: 0 var(--space-3);
    background: rgba(5, 5, 10, 0.5);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-sizing: border-box;
    opacity: 0;
    transform: translateY(-100%);
    pointer-events: none;
    transition: opacity var(--duration-normal) var(--easing-enter),
        transform var(--duration-normal) var(--easing-enter);
}

.header__inner {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) 0;
}

.site-header.header--visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.site-header.header--portal {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.header__logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.header__logo img {
    height: 36px;
    width: auto;
}

.header__logo.logo-white img {
    height: 36px;
    width: auto;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.header__nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--duration-normal) var(--easing-standard);
}

.header__nav a:hover {
    color: var(--color-text-primary);
    text-shadow: 0 0 14px rgba(79, 70, 229, 0.45);
}

.header__nav a.nav-link--active {
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-full);
    padding: 6px 16px;
}

.header__nav a.nav-link--active:hover {
    background: rgba(79, 70, 229, 0.12);
}

.header__nav a.portal-link {
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-full);
    padding: 6px 16px;
    color: var(--color-accent);
}

.header__nav a.portal-link:hover {
    background: rgba(79, 70, 229, 0.15);
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: 0 0 20px rgba(79, 70, 229, 0.25);
    /* transform: translateY(-1px); */
}

.hamburger {
    display: none;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    position: absolute;
    transition: all var(--duration-normal) var(--easing-standard);
}

.hamburger span:nth-child(1) {
    top: 0;
}

.hamburger span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.hamburger span:nth-child(3) {
    bottom: 0;
}

.hamburger.hamburger--active span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.hamburger.hamburger--active span:nth-child(2) {
    opacity: 0;
}

.hamburger.hamburger--active span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

.mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(11, 12, 12, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-normal) var(--easing-enter);
}

.mobile-menu.mobile-menu--open {
    opacity: 1;
    pointer-events: auto;
}

.mobile-menu a {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text-primary);
    text-decoration: none;
}

@media (max-width: 768px) {
    .header__nav {
        display: none;
    }

    .hamburger {
        display: block;
    }
}

.footer {
    background: rgba(5, 5, 10, 0.98);
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    padding: var(--space-10) 0 0;
    margin-top: 0;
}

.footer__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-3);
}

.footer__top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.footer__brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    max-width: 380px;
}

.footer__logo-img {
    height: 32px;
    width: auto;
}

.footer__tagline {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: var(--line-height-loose);
    margin: 0;
}

.footer__contact {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-2);
}

.footer__contact-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin: 0;
}

.footer__email-link {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--duration-normal) var(--easing-standard);
}

.footer__email-link:hover {
    color: var(--color-text-primary);
    text-shadow: 0 0 14px rgba(79, 70, 229, 0.45);
}

.footer__whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: rgba(37, 211, 102, 0.08);
    border: 1px solid rgba(37, 211, 102, 0.25);
    border-radius: var(--radius-full);
    color: #25D366;
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--duration-normal) var(--easing-standard);
}

.footer__whatsapp:hover {
    background: rgba(37, 211, 102, 0.15);
    border-color: rgba(37, 211, 102, 0.45);
    color: #2edf73;
    transform: translateY(-2px);
    box-shadow: 0 0 24px rgba(37, 211, 102, 0.18);
}

.footer__whatsapp svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    flex-shrink: 0;
}

.footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) 0;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.footer__bottom p {
    margin: 0;
}

.footer__portal-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--font-size-xs);
    transition: color var(--duration-normal) var(--easing-standard);
}

.footer__portal-link:hover {
    color: var(--color-accent);
}

@media (max-width: 640px) {
    .footer__top {
        flex-direction: column;
        gap: var(--space-6);
    }

    .footer__contact {
        align-items: flex-start;
    }

    .footer__bottom {
        flex-direction: column;
        gap: var(--space-2);
        text-align: center;
    }
}

.whatsapp-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    background: transparent;
    color: #25D366;
    padding: 12px;
    border-radius: 50%;
    border: 2px solid #25D366;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-3);
    transition: all var(--duration-normal) var(--easing-standard);
    width: 56px;
    height: 56px;
}

.whatsapp-button:hover {
    background: rgba(37, 211, 102, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 0 24px rgba(37, 211, 102, 0.3);
    border-color: #128C7E;
    color: #128C7E;
}

.whatsapp-button svg {
    width: 32px;
    height: 32px;
    fill: currentColor;
}

.whatsapp-button span {
    display: none;
}

@media (max-width: 768px) {
    .whatsapp-button {
        bottom: 20px;
        right: 20px;
        width: 48px;
        height: 48px;
        padding: 8px;
    }

    .whatsapp-button svg {
        width: 28px;
        height: 28px;
    }
}

.ai-assistant-btn {
    display: none;
    /* Oculto visualmente por enquanto */
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 1000;
    background: rgba(79, 70, 229, 0.1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--color-accent);
    padding: 12px;
    border-radius: 50%;
    border: 1px solid rgba(79, 70, 229, 0.3);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(79, 70, 229, 0.15);
    transition: all var(--duration-normal) var(--easing-standard);
    width: 56px;
    height: 56px;
}

.ai-assistant-btn:hover {
    background: rgba(79, 70, 229, 0.2);
    transform: translateY(-4px) scale(1.05);
    border-color: var(--color-accent);
    box-shadow: 0 0 30px rgba(79, 70, 229, 0.3);
}

.ai-assistant-btn svg {
    width: 28px;
    height: 28px;
}

@media (max-width: 768px) {
    .ai-assistant-btn {
        bottom: 85px;
        right: 20px;
        width: 48px;
        height: 48px;
    }
}