/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: background-color var(--transition-speed), transform var(--transition-speed), box-shadow var(--transition-speed);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn:focus-visible {
    outline: 3px solid var(--color-yellow);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--color-yellow);
    color: var(--color-text-dark);
}

.btn-primary:hover {
    background-color: #e5b410;
}

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

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-blue-main);
    border: 2px solid var(--color-blue-main);
}

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

/* Cards Institucionais */
.card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-speed);
    border: 1px solid rgba(0,0,0,0.05);
}

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

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    height: var(--header-height);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
    display: flex;
    align-items: center;
}

.site-header.scrolled {
    background-color: var(--color-blue-dark);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.brand {
    display: flex;
    align-items: center;
    color: var(--color-white);
}

.logo-img {
    max-height: 50px;
    width: auto;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    line-height: 1;
    letter-spacing: 1px;
}

.logo-subtitle {
    font-size: 0.6rem;
    letter-spacing: 2px;
    margin-top: 4px;
    color: var(--color-yellow);
}

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

.nav-list {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-speed);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-yellow);
    transition: width var(--transition-speed);
}

.nav-link:hover::after, .nav-link:focus-visible::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--color-yellow);
}

.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle svg {
    width: 32px;
    height: 32px;
    fill: currentColor;
}

/* Footer */
.site-footer {
    background-color: var(--color-blue-dark);
    color: var(--color-white);
    padding: 4rem 0 2rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    color: var(--color-yellow);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    transition: color var(--transition-speed);
}

.footer-links a:hover {
    color: var(--color-yellow);
}

.social-links {
    display: flex;
    gap: 1rem;
}

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

.social-link:hover {
    background-color: var(--color-yellow);
    color: var(--color-blue-dark);
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-legal p {
    margin-bottom: 0.5rem;
}